common_gettext.c \
common_logging.c \
configuration.c \
+ connection.c \
container_bloomfilter.c \
container_meta_data.c \
container_multihashmap.c \
getopt.c \
getopt_helpers.c \
network.c \
- network_socket.c \
os_installation.c \
os_load.c \
os_network.c \
test_crypto_rsa \
test_disk \
test_getopt \
- test_network \
- test_network_addressing \
- test_network_receive_cancel \
- test_network_timeout \
- test_network_timeout_no_connect \
- test_network_transmit_cancel \
+ test_connection \
+ test_connection_addressing \
+ test_connection_receive_cancel \
+ test_connection_timeout \
+ test_connection_timeout_no_connect \
+ test_connection_transmit_cancel \
test_os_load \
test_os_network \
test_os_priority \
test_getopt_LDADD = \
$(top_builddir)/src/util/libgnunetutil.la
-test_network_SOURCES = \
- test_network.c
-test_network_LDADD = \
+test_connection_SOURCES = \
+ test_connection.c
+test_connection_LDADD = \
$(top_builddir)/src/util/libgnunetutil.la
-test_network_addressing_SOURCES = \
- test_network_addressing.c
-test_network_addressing_LDADD = \
+test_connection_addressing_SOURCES = \
+ test_connection_addressing.c
+test_connection_addressing_LDADD = \
$(top_builddir)/src/util/libgnunetutil.la
-test_network_receive_cancel_SOURCES = \
- test_network_receive_cancel.c
-test_network_receive_cancel_LDADD = \
+test_connection_receive_cancel_SOURCES = \
+ test_connection_receive_cancel.c
+test_connection_receive_cancel_LDADD = \
$(top_builddir)/src/util/libgnunetutil.la
-test_network_timeout_SOURCES = \
- test_network_timeout.c
-test_network_timeout_LDADD = \
+test_connection_timeout_SOURCES = \
+ test_connection_timeout.c
+test_connection_timeout_LDADD = \
$(top_builddir)/src/util/libgnunetutil.la
-test_network_timeout_no_connect_SOURCES = \
- test_network_timeout_no_connect.c
-test_network_timeout_no_connect_LDADD = \
+test_connection_timeout_no_connect_SOURCES = \
+ test_connection_timeout_no_connect.c
+test_connection_timeout_no_connect_LDADD = \
$(top_builddir)/src/util/libgnunetutil.la
-test_network_transmit_cancel_SOURCES = \
- test_network_transmit_cancel.c
-test_network_transmit_cancel_LDADD = \
+test_connection_transmit_cancel_SOURCES = \
+ test_connection_transmit_cancel.c
+test_connection_transmit_cancel_LDADD = \
$(top_builddir)/src/util/libgnunetutil.la
test_os_load_SOURCES = \
--- /dev/null
+/*
+ This file is part of GNUnet.
+ (C) 2009 Christian Grothoff (and other contributing authors)
+
+ GNUnet is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published
+ by the Free Software Foundation; either version 2, or (at your
+ option) any later version.
+
+ GNUnet is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with GNUnet; see the file COPYING. If not, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+*/
+
+/**
+ * @file util/connection.c
+ * @brief TCP connection management
+ * @author Christian Grothoff
+ *
+ * This code is rather complex. Only modify it if you
+ * 1) Have a NEW testcase showing that the new code
+ * is needed and correct
+ * 2) All EXISTING testcases pass with the new code
+ * These rules should apply in general, but for this
+ * module they are VERY, VERY important.
+ *
+ * TODO:
+ * - can we merge receive_ready and receive_again?
+ * - can we integrate the nth.timeout_task with the write_task's timeout?
+ */
+
+#include "platform.h"
+#include "gnunet_common.h"
+#include "gnunet_connection_lib.h"
+#include "gnunet_scheduler_lib.h"
+
+#define DEBUG_CONNECTION GNUNET_NO
+
+/**
+ * List of address families to give as hints to
+ * getaddrinfo, in reverse order of preference.
+ */
+static int address_families[] =
+ { AF_INET, AF_INET6, AF_UNSPEC };
+
+struct GNUNET_CONNECTION_TransmitHandle
+{
+
+ /**
+ * Function to call if the send buffer has notify_size
+ * bytes available.
+ */
+ GNUNET_CONNECTION_TransmitReadyNotify notify_ready;
+
+ /**
+ * Closure for notify_ready.
+ */
+ void *notify_ready_cls;
+
+ /**
+ * Our socket handle.
+ */
+ struct GNUNET_CONNECTION_Handle *sh;
+
+ /**
+ * Timeout for receiving (in absolute time).
+ */
+ struct GNUNET_TIME_Absolute transmit_timeout;
+
+ /**
+ * Task called on timeout.
+ */
+ GNUNET_SCHEDULER_TaskIdentifier timeout_task;
+
+ /**
+ * At what number of bytes available in the
+ * write buffer should the notify method be called?
+ */
+ size_t notify_size;
+
+};
+
+/**
+ * @brief handle for a network socket
+ */
+struct GNUNET_CONNECTION_Handle
+{
+
+ /**
+ * Scheduler that was used for the connect task.
+ */
+ struct GNUNET_SCHEDULER_Handle *sched;
+
+ /**
+ * Address information for connect (may be NULL).
+ */
+ struct addrinfo *ai;
+
+ /**
+ * Index for the next struct addrinfo for connect attempts (may be NULL)
+ */
+ struct addrinfo *ai_pos;
+
+ /**
+ * Network address of the other end-point, may be NULL.
+ */
+ struct sockaddr *addr;
+
+ /**
+ * Pointer to the hostname if socket was
+ * created using DNS lookup, otherwise NULL.
+ */
+ char *hostname;
+
+ /**
+ * Pointer to our write buffer.
+ */
+ char *write_buffer;
+
+ /**
+ * Size of our write buffer.
+ */
+ size_t write_buffer_size;
+
+ /**
+ * Current write-offset in write buffer (where
+ * would we write next).
+ */
+ size_t write_buffer_off;
+
+ /**
+ * Current read-offset in write buffer (how many
+ * bytes have already been send).
+ */
+ size_t write_buffer_pos;
+
+ /**
+ * Length of addr.
+ */
+ socklen_t addrlen;
+
+ /**
+ * Offset in our address family list
+ * that we used last.
+ */
+ int af_fam_offset;
+
+ /**
+ * Connect task that we may need to wait for.
+ */
+ GNUNET_SCHEDULER_TaskIdentifier connect_task;
+
+ /**
+ * Read task that we may need to wait for.
+ */
+ GNUNET_SCHEDULER_TaskIdentifier read_task;
+
+ /**
+ * Write task that we may need to wait for.
+ */
+ GNUNET_SCHEDULER_TaskIdentifier write_task;
+
+ /**
+ * The handle we return for GNUNET_CONNECTION_notify_transmit_ready.
+ */
+ struct GNUNET_CONNECTION_TransmitHandle nth;
+
+ /**
+ * Underlying OS's socket, set to NULL after fatal errors.
+ */
+ struct GNUNET_NETWORK_Descriptor *sock;
+
+ /**
+ * Port to connect to.
+ */
+ uint16_t port;
+
+ /**
+ * Function to call on data received, NULL
+ * if no receive is pending.
+ */
+ GNUNET_CONNECTION_Receiver receiver;
+
+ /**
+ * Closure for receiver.
+ */
+ void *receiver_cls;
+
+ /**
+ * Timeout for receiving (in absolute time).
+ */
+ struct GNUNET_TIME_Absolute receive_timeout;
+
+ /**
+ * Maximum number of bytes to read
+ * (for receiving).
+ */
+ size_t max;
+
+};
+
+
+/**
+ * Create a socket handle by boxing an existing OS socket. The OS
+ * socket should henceforth be no longer used directly.
+ * GNUNET_socket_destroy will close it.
+ *
+ * @param sched scheduler to use
+ * @param osSocket existing socket to box
+ * @param maxbuf maximum write buffer size for the socket (use
+ * 0 for sockets that need no write buffers, such as listen sockets)
+ * @return the boxed socket handle
+ */
+struct GNUNET_CONNECTION_Handle *
+GNUNET_CONNECTION_create_from_existing (struct GNUNET_SCHEDULER_Handle
+ *sched, struct GNUNET_NETWORK_Descriptor *osSocket,
+ size_t maxbuf)
+{
+ struct GNUNET_CONNECTION_Handle *ret;
+ ret = GNUNET_malloc (sizeof (struct GNUNET_CONNECTION_Handle) + maxbuf);
+ ret->write_buffer = (char *) &ret[1];
+ ret->write_buffer_size = maxbuf;
+ ret->sock = osSocket;
+ ret->sched = sched;
+ return ret;
+}
+
+
+/**
+ * Create a socket handle by accepting on a listen socket. This
+ * function may block if the listen socket has no connection ready.
+ *
+ * @param sched scheduler to use
+ * @param access function to use to check if access is allowed
+ * @param access_cls closure for access
+ * @param lsock listen socket
+ * @param maxbuf maximum write buffer size for the socket (use
+ * 0 for sockets that need no write buffers, such as listen sockets)
+ * @return the socket handle, NULL on error
+ */
+struct GNUNET_CONNECTION_Handle *
+GNUNET_CONNECTION_create_from_accept (struct GNUNET_SCHEDULER_Handle
+ *sched,
+ GNUNET_CONNECTION_AccessCheck access,
+ void *access_cls, struct GNUNET_NETWORK_Descriptor *lsock,
+ size_t maxbuf)
+{
+ struct GNUNET_CONNECTION_Handle *ret;
+ char addr[32];
+ socklen_t addrlen;
+ struct GNUNET_NETWORK_Descriptor *sock;
+ int aret;
+ struct sockaddr_in *v4;
+ struct sockaddr_in6 *v6;
+ struct sockaddr *sa;
+ void *uaddr;
+
+ addrlen = sizeof (addr);
+ sock = GNUNET_NETWORK_socket_accept (lsock, (struct sockaddr *) &addr, &addrlen);
+ if (NULL == sock)
+ {
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "accept");
+ return NULL;
+ }
+#ifndef MINGW
+ if (GNUNET_OK != GNUNET_NETWORK_socket_set_inheritable (sock))
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
+ "fcntl");
+#endif
+ if (addrlen > sizeof (addr))
+ {
+ GNUNET_break (0);
+ GNUNET_break (0 == GNUNET_NETWORK_socket_close (sock));
+ return NULL;
+ }
+
+ sa = (struct sockaddr *) addr;
+ v6 = (struct sockaddr_in6 *) addr;
+ if ((sa->sa_family == AF_INET6) && (IN6_IS_ADDR_V4MAPPED (&v6->sin6_addr)))
+ {
+ /* convert to V4 address */
+ v4 = GNUNET_malloc (sizeof (struct sockaddr_in));
+ memset (v4, 0, sizeof (struct sockaddr_in));
+ v4->sin_family = AF_INET;
+ memcpy (&v4->sin_addr,
+ &((char *) &v6->sin6_addr)[sizeof (struct in6_addr) -
+ sizeof (struct in_addr)],
+ sizeof (struct in_addr));
+ v4->sin_port = v6->sin6_port;
+ uaddr = v4;
+ addrlen = sizeof (struct sockaddr_in);
+ }
+ else
+ {
+ uaddr = GNUNET_malloc (addrlen);
+ memcpy (uaddr, addr, addrlen);
+ }
+
+ if ((access != NULL) &&
+ (GNUNET_YES != (aret = access (access_cls, uaddr, addrlen))))
+ {
+ if (aret == GNUNET_NO)
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ _("Access denied to `%s'\n"),
+ GNUNET_a2s(uaddr, addrlen));
+ GNUNET_break (0 == GNUNET_NETWORK_socket_shutdown (sock, SHUT_RDWR));
+ GNUNET_break (0 == GNUNET_NETWORK_socket_close (sock));
+ GNUNET_free (uaddr);
+ return NULL;
+ }
+#if DEBUG_CONNECTION
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ _("Accepting connection from `%s'\n"),
+ GNUNET_a2s(uaddr, addrlen));
+#endif
+ ret = GNUNET_malloc (sizeof (struct GNUNET_CONNECTION_Handle) + maxbuf);
+ ret->write_buffer = (char *) &ret[1];
+ ret->write_buffer_size = maxbuf;
+ ret->addr = uaddr;
+ ret->addrlen = addrlen;
+ ret->sock = sock;
+ ret->sched = sched;
+ return ret;
+}
+
+/**
+ * Obtain the network address of the other party.
+ *
+ * @param sock the client to get the address for
+ * @param addr where to store the address
+ * @param addrlen where to store the length of the address
+ * @return GNUNET_OK on success
+ */
+int
+GNUNET_CONNECTION_get_address (struct GNUNET_CONNECTION_Handle *sock,
+ void **addr, size_t * addrlen)
+{
+ if ((sock->addr == NULL) || (sock->addrlen == 0))
+ return GNUNET_NO;
+ *addr = GNUNET_malloc (sock->addrlen);
+ memcpy (*addr, sock->addr, sock->addrlen);
+ *addrlen = sock->addrlen;
+ return GNUNET_OK;
+}
+
+/**
+ * Perform a DNS lookup for the hostname associated
+ * with the current socket, iterating over the address
+ * families as specified in the "address_families" array.
+ */
+static void
+try_lookup (struct GNUNET_CONNECTION_Handle *sock)
+{
+ struct addrinfo hints;
+ int ec;
+
+ while ( (sock->ai_pos == NULL) &&
+ (sock->af_fam_offset > 0) )
+ {
+ if (sock->ai != NULL)
+ freeaddrinfo (sock->ai);
+ memset (&hints, 0, sizeof (hints));
+ hints.ai_family = address_families[--sock->af_fam_offset];
+ hints.ai_socktype = SOCK_STREAM;
+ if (0 != (ec = getaddrinfo (sock->hostname, NULL, &hints, &sock->ai)))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO | GNUNET_ERROR_TYPE_BULK,
+ "`%s' failed for hostname `%s': %s\n",
+ "getaddrinfo", sock->hostname, gai_strerror (ec));
+ sock->ai = NULL;
+ }
+ sock->ai_pos = sock->ai;
+ }
+}
+
+
+/**
+ * Initiate asynchronous TCP connect request.
+ *
+ * @param sock what socket to connect
+ * @return GNUNET_SYSERR error (no more addresses to try)
+ */
+static int
+try_connect (struct GNUNET_CONNECTION_Handle *sock)
+{
+ struct GNUNET_NETWORK_Descriptor *s;
+
+ if (sock->addr != NULL)
+ {
+ GNUNET_free (sock->addr);
+ sock->addr = NULL;
+ sock->addrlen = 0;
+ }
+ while (1)
+ {
+ if (sock->ai_pos == NULL)
+ try_lookup (sock);
+ if (sock->ai_pos == NULL)
+ {
+ /* no more addresses to try, fatal! */
+ return GNUNET_SYSERR;
+ }
+ switch (sock->ai_pos->ai_family)
+ {
+ case AF_INET:
+ ((struct sockaddr_in *) sock->ai_pos->ai_addr)->sin_port =
+ htons (sock->port);
+ break;
+ case AF_INET6:
+ ((struct sockaddr_in6 *) sock->ai_pos->ai_addr)->sin6_port =
+ htons (sock->port);
+ break;
+ default:
+ sock->ai_pos = sock->ai_pos->ai_next;
+ continue;
+ }
+ s = GNUNET_NETWORK_socket_socket (sock->ai_pos->ai_family, SOCK_STREAM, 0);
+ if (s == NULL)
+ {
+ /* maybe unsupported address family, try next */
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_INFO, "socket");
+ sock->ai_pos = sock->ai_pos->ai_next;
+ continue;
+ }
+#ifndef MINGW
+ if (GNUNET_OK != GNUNET_NETWORK_socket_set_inheritable (s))
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
+ "GNUNET_NETWORK_socket_set_inheritable");
+#endif
+ if (GNUNET_SYSERR == GNUNET_NETWORK_socket_set_blocking (s, GNUNET_NO))
+ {
+ /* we'll treat this one as fatal */
+ GNUNET_break (0 == GNUNET_NETWORK_socket_close (s));
+ return GNUNET_SYSERR;
+ }
+#if DEBUG_CONNECTION
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ _("Trying to connect to `%s'\n"),
+ GNUNET_a2s(sock->ai_pos->ai_addr,
+ sock->ai_pos->ai_addrlen));
+#endif
+ if ((0 != GNUNET_NETWORK_socket_connect (s,
+ sock->ai_pos->ai_addr,
+ sock->ai_pos->ai_addrlen)) && (errno != EINPROGRESS))
+ {
+ /* maybe refused / unsupported address, try next */
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_INFO, "connect");
+ GNUNET_break (0 == GNUNET_NETWORK_socket_close (s));
+ sock->ai_pos = sock->ai_pos->ai_next;
+ continue;
+ }
+ break;
+ }
+ /* got one! copy address information! */
+ sock->addrlen = sock->ai_pos->ai_addrlen;
+ sock->addr = GNUNET_malloc (sock->addrlen);
+ memcpy (sock->addr, sock->ai_pos->ai_addr, sock->addrlen);
+ sock->ai_pos = sock->ai_pos->ai_next;
+ sock->sock = s;
+ return GNUNET_OK;
+}
+
+
+/**
+ * Scheduler let us know that we're either ready to
+ * write on the socket OR connect timed out. Do the
+ * right thing.
+ */
+static void
+connect_continuation (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct GNUNET_CONNECTION_Handle *sock = cls;
+ unsigned int len;
+ int error;
+
+ /* nobody needs to wait for us anymore... */
+ sock->connect_task = GNUNET_SCHEDULER_NO_TASK;
+ /* Note: write-ready does NOT mean connect succeeded,
+ we need to use getsockopt to be sure */
+ len = sizeof (error);
+ errno = 0;
+ error = 0;
+ if ((0 == (tc->reason & GNUNET_SCHEDULER_REASON_WRITE_READY)) ||
+ (0 != GNUNET_NETWORK_socket_getsockopt (sock->sock, SOL_SOCKET, SO_ERROR, &error, &len)) ||
+ (error != 0) || (errno != 0))
+ {
+#if DEBUG_CONNECTION
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Failed to establish TCP connection to `%s'\n",
+ GNUNET_a2s(sock->addr, sock->addrlen));
+#endif
+ /* connect failed / timed out */
+ GNUNET_break (0 == GNUNET_NETWORK_socket_close (sock->sock));
+ sock->sock = NULL;
+ if (GNUNET_SYSERR == try_connect (sock))
+ {
+ /* failed for good */
+#if DEBUG_CONNECTION
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Failed to establish TCP connection, no further addresses to try.\n");
+#endif
+ /* connect failed / timed out */
+ GNUNET_break (sock->ai_pos == NULL);
+ freeaddrinfo (sock->ai);
+ sock->ai = NULL;
+ return;
+ }
+ sock->connect_task = GNUNET_SCHEDULER_add_write_net (tc->sched, GNUNET_NO, /* abort on shutdown */
+ GNUNET_SCHEDULER_PRIORITY_KEEP,
+ GNUNET_SCHEDULER_NO_TASK,
+ GNUNET_CONNECTION_CONNECT_RETRY_TIMEOUT,
+ sock->sock,
+ &connect_continuation,
+ sock);
+ return;
+ }
+ /* connect succeeded! clean up "ai" */
+#if DEBUG_CONNECTION
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Connection to `%s' succeeded!\n",
+ GNUNET_a2s(sock->addr, sock->addrlen));
+#endif
+ freeaddrinfo (sock->ai);
+ sock->ai_pos = NULL;
+ sock->ai = NULL;
+}
+
+
+/**
+ * Create a socket handle by (asynchronously) connecting to a host.
+ * This function returns immediately, even if the connection has not
+ * yet been established. This function only creates TCP connections.
+ *
+ * @param sched scheduler to use
+ * @param hostname name of the host to connect to
+ * @param port port to connect to
+ * @param maxbuf maximum write buffer size for the socket (use
+ * 0 for sockets that need no write buffers, such as listen sockets)
+ * @return the socket handle
+ */
+struct GNUNET_CONNECTION_Handle *
+GNUNET_CONNECTION_create_from_connect (struct GNUNET_SCHEDULER_Handle
+ *sched, const char *hostname,
+ uint16_t port, size_t maxbuf)
+{
+ struct GNUNET_CONNECTION_Handle *ret;
+
+ ret = GNUNET_malloc (sizeof (struct GNUNET_CONNECTION_Handle) + maxbuf);
+ ret->sock = NULL;
+ ret->sched = sched;
+ ret->write_buffer = (char *) &ret[1];
+ ret->write_buffer_size = maxbuf;
+ ret->port = port;
+ ret->af_fam_offset = sizeof (address_families) / sizeof(address_families[0]);
+ ret->hostname = GNUNET_strdup (hostname);
+ if (GNUNET_SYSERR == try_connect (ret))
+ {
+ if (NULL != ret->ai)
+ freeaddrinfo (ret->ai);
+ GNUNET_free (ret->hostname);
+ GNUNET_free (ret);
+ return NULL;
+ }
+ ret->connect_task = GNUNET_SCHEDULER_add_write_net (sched, GNUNET_NO, /* abort on shutdown */
+ GNUNET_SCHEDULER_PRIORITY_KEEP,
+ GNUNET_SCHEDULER_NO_TASK,
+ GNUNET_CONNECTION_CONNECT_RETRY_TIMEOUT,
+ ret->sock,
+ &connect_continuation, ret);
+ return ret;
+
+}
+
+
+/**
+ * Create a socket handle by (asynchronously) connecting to a host.
+ * This function returns immediately, even if the connection has not
+ * yet been established. This function only creates TCP connections.
+ *
+ * @param sched scheduler to use
+ * @param af_family address family to use
+ * @param serv_addr server address
+ * @param addrlen length of server address
+ * @param maxbuf maximum write buffer size for the socket (use
+ * 0 for sockets that need no write buffers, such as listen sockets)
+ * @return the socket handle
+ */
+struct GNUNET_CONNECTION_Handle *
+GNUNET_CONNECTION_create_from_sockaddr (struct GNUNET_SCHEDULER_Handle
+ *sched, int af_family,
+ const struct sockaddr *serv_addr,
+ socklen_t addrlen, size_t maxbuf)
+{
+ struct GNUNET_NETWORK_Descriptor *s;
+ struct GNUNET_CONNECTION_Handle *ret;
+
+ s = GNUNET_NETWORK_socket_socket (af_family, SOCK_STREAM, 0);
+ if (s == NULL)
+ {
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING |
+ GNUNET_ERROR_TYPE_BULK, "socket");
+ return NULL;
+ }
+#ifndef MINGW
+#if 0
+ // FIXME NILS
+ if (0 != fcntl (s, F_SETFD, fcntl (s, F_GETFD) | FD_CLOEXEC))
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
+ "fcntl");
+#endif
+#endif
+ if (GNUNET_SYSERR == GNUNET_NETWORK_socket_set_blocking (s, GNUNET_NO))
+ {
+ /* we'll treat this one as fatal */
+ GNUNET_break (0 == GNUNET_NETWORK_socket_close (s));
+ return NULL;
+ }
+#if DEBUG_CONNECTION
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ _("Trying to connect to `%s'\n"),
+ GNUNET_a2s(serv_addr, addrlen));
+#endif
+ if ((0 != GNUNET_NETWORK_socket_connect (s, serv_addr, addrlen)) && (errno != EINPROGRESS))
+ {
+ /* maybe refused / unsupported address, try next */
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_INFO, "connect");
+ GNUNET_break (0 == GNUNET_NETWORK_socket_close (s));
+ return NULL;
+ }
+ ret = GNUNET_CONNECTION_create_from_existing (sched, s, maxbuf);
+ ret->addr = GNUNET_malloc (addrlen);
+ memcpy (ret->addr, serv_addr, addrlen);
+ ret->addrlen = addrlen;
+ return ret;
+}
+
+
+/**
+ * Check if socket is valid (no fatal errors have happened so far).
+ * Note that a socket that is still trying to connect is considered
+ * valid.
+ *
+ * @param sock socket to check
+ * @return GNUNET_YES if valid, GNUNET_NO otherwise
+ */
+int
+GNUNET_CONNECTION_check (struct GNUNET_CONNECTION_Handle *sock)
+{
+ if (sock->ai != NULL)
+ return GNUNET_YES; /* still trying to connect */
+ return (sock->sock == NULL) ? GNUNET_NO : GNUNET_YES;
+}
+
+
+/**
+ * Scheduler let us know that the connect task is finished (or was
+ * cancelled due to shutdown). Now really clean up.
+ */
+static void
+destroy_continuation (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct GNUNET_CONNECTION_Handle *sock = cls;
+ GNUNET_CONNECTION_TransmitReadyNotify notify;
+
+ if (sock->write_task != GNUNET_SCHEDULER_NO_TASK)
+ {
+ GNUNET_SCHEDULER_add_after (sock->sched,
+ GNUNET_YES,
+ GNUNET_SCHEDULER_PRIORITY_KEEP,
+ sock->write_task,
+ &destroy_continuation, sock);
+ return;
+ }
+ if (sock->sock != NULL)
+ {
+#if DEBUG_CONNECTION
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Shutting down socket.\n");
+#endif
+ GNUNET_NETWORK_socket_shutdown (sock->sock, SHUT_RDWR);
+ }
+ if (sock->read_task != GNUNET_SCHEDULER_NO_TASK)
+ {
+ GNUNET_SCHEDULER_add_after (sock->sched,
+ GNUNET_YES,
+ GNUNET_SCHEDULER_PRIORITY_KEEP,
+ sock->read_task,
+ &destroy_continuation, sock);
+ return;
+ }
+ if (NULL != (notify = sock->nth.notify_ready))
+ {
+ sock->nth.notify_ready = NULL;
+ notify (sock->nth.notify_ready_cls, 0, NULL);
+ if (sock->nth.timeout_task != GNUNET_SCHEDULER_NO_TASK)
+ {
+ GNUNET_SCHEDULER_cancel (sock->sched, sock->nth.timeout_task);
+ sock->nth.timeout_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+ }
+ if (sock->sock != NULL)
+ GNUNET_break (0 == GNUNET_NETWORK_socket_close (sock->sock));
+ GNUNET_free_non_null (sock->addr);
+ if (sock->ai != NULL)
+ freeaddrinfo (sock->ai);
+ GNUNET_free_non_null (sock->hostname);
+ GNUNET_free (sock);
+}
+
+
+/**
+ * Close the socket and free associated resources. Pending
+ * transmissions are simply dropped. A pending receive call will be
+ * called with an error code of "EPIPE".
+ *
+ * @param sock socket to destroy
+ */
+void
+GNUNET_CONNECTION_destroy (struct GNUNET_CONNECTION_Handle *sock)
+{
+ if (sock->write_buffer_off == 0)
+ sock->ai_pos = NULL; /* if we're still trying to connect and have
+ no message pending, stop trying! */
+ GNUNET_assert (sock->sched != NULL);
+ GNUNET_SCHEDULER_add_after (sock->sched,
+ GNUNET_YES,
+ GNUNET_SCHEDULER_PRIORITY_KEEP,
+ sock->connect_task,
+ &destroy_continuation, sock);
+}
+
+/**
+ * Tell the receiver callback that a timeout was reached.
+ */
+static void
+signal_timeout (struct GNUNET_CONNECTION_Handle *sh)
+{
+ GNUNET_CONNECTION_Receiver receiver;
+
+#if DEBUG_CONNECTION
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Network signals time out to receiver!\n");
+#endif
+ GNUNET_assert (NULL != (receiver = sh->receiver));
+ sh->receiver = NULL;
+ receiver (sh->receiver_cls, NULL, 0, NULL, 0, 0);
+}
+
+
+/**
+ * Tell the receiver callback that we had an IO error.
+ */
+static void
+signal_error (struct GNUNET_CONNECTION_Handle *sh, int errcode)
+{
+ GNUNET_CONNECTION_Receiver receiver;
+ GNUNET_assert (NULL != (receiver = sh->receiver));
+ sh->receiver = NULL;
+ receiver (sh->receiver_cls, NULL, 0, sh->addr, sh->addrlen, errcode);
+}
+
+
+/**
+ * This function is called once we either timeout
+ * or have data ready to read.
+ */
+static void
+receive_ready (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct GNUNET_CONNECTION_Handle *sh = cls;
+ struct GNUNET_TIME_Absolute now;
+ char buffer[sh->max];
+ ssize_t ret;
+ GNUNET_CONNECTION_Receiver receiver;
+
+ sh->read_task = GNUNET_SCHEDULER_NO_TASK;
+ now = GNUNET_TIME_absolute_get ();
+ if ((now.value > sh->receive_timeout.value) ||
+ (0 != (tc->reason & GNUNET_SCHEDULER_REASON_TIMEOUT)) ||
+ (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN)))
+ {
+#if DEBUG_CONNECTION
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Receive encounters error: time out...\n");
+#endif
+ signal_timeout (sh);
+ return;
+ }
+ if (sh->sock == NULL)
+ {
+ /* connect failed for good */
+#if DEBUG_CONNECTION
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Receive encounters error, socket closed...\n");
+#endif
+ signal_error (sh, ECONNREFUSED);
+ return;
+ }
+ GNUNET_assert (GNUNET_NETWORK_fdset_isset (tc->read_ready, sh->sock));
+RETRY:
+ ret = GNUNET_NETWORK_socket_recv (sh->sock, buffer, sh->max,
+#ifndef MINGW
+ // FIXME MINGW
+ MSG_DONTWAIT
+#else
+ 0
+#endif
+ );
+ if (ret == -1)
+ {
+ if (errno == EINTR)
+ goto RETRY;
+#if DEBUG_CONNECTION
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Error receiving: %s\n", STRERROR (errno));
+#endif
+ signal_error (sh, errno);
+ return;
+ }
+#if DEBUG_CONNECTION
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "receive_ready read %u/%u bytes from `%s'!\n",
+ (unsigned int) ret,
+ sh->max,
+ GNUNET_a2s(sh->addr, sh->addrlen));
+#endif
+ GNUNET_assert (NULL != (receiver = sh->receiver));
+ sh->receiver = NULL;
+ receiver (sh->receiver_cls, buffer, ret, sh->addr, sh->addrlen, 0);
+}
+
+
+/**
+ * This function is called after establishing a connection either has
+ * succeeded or timed out. Note that it is possible that the attempt
+ * timed out and that we're immediately retrying. If we are retrying,
+ * we need to wait again (or timeout); if we succeeded, we need to
+ * wait for data (or timeout).
+ */
+static void
+receive_again (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct GNUNET_CONNECTION_Handle *sh = cls;
+ struct GNUNET_TIME_Absolute now;
+
+ sh->read_task = GNUNET_SCHEDULER_NO_TASK;
+ if ((sh->sock == NULL) &&
+ (sh->connect_task == GNUNET_SCHEDULER_NO_TASK))
+ {
+ /* not connected and no longer trying */
+#if DEBUG_CONNECTION
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Receive encounters error, socket closed...\n");
+#endif
+ signal_error (sh, ECONNREFUSED);
+ return;
+ }
+ now = GNUNET_TIME_absolute_get ();
+ if ((now.value > sh->receive_timeout.value) ||
+ (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN)))
+ {
+#if DEBUG_CONNECTION
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Receive encounters error: time out...\n");
+#endif
+ signal_timeout (sh);
+ return;
+ }
+ if (sh->connect_task != GNUNET_SCHEDULER_NO_TASK)
+ {
+ /* connect was retried */
+ sh->read_task = GNUNET_SCHEDULER_add_after (tc->sched,
+ GNUNET_YES,
+ GNUNET_SCHEDULER_PRIORITY_KEEP,
+ sh->connect_task,
+ &receive_again, sh);
+ return;
+ }
+ /* connect succeeded, wait for data! */
+ sh->read_task = GNUNET_SCHEDULER_add_read_net (tc->sched,
+ GNUNET_YES,
+ GNUNET_SCHEDULER_PRIORITY_KEEP,
+ sh->connect_task,
+ GNUNET_TIME_absolute_get_remaining
+ (sh->receive_timeout),
+ sh->sock, &receive_ready,
+ sh);
+}
+
+
+/**
+ * Receive data from the given socket. Note that this function will
+ * call "receiver" asynchronously using the scheduler. It will
+ * "immediately" return. Note that there MUST only be one active
+ * receive call per socket at any given point in time (so do not
+ * call receive again until the receiver callback has been invoked).
+ *
+ * @param sched scheduler to use
+ * @param sock socket handle
+ * @param max maximum number of bytes to read
+ * @param timeout maximum amount of time to wait (use -1 for "forever")
+ * @param receiver function to call with received data
+ * @param receiver_cls closure for receiver
+ * @return scheduler task ID used for receiving, GNUNET_SCHEDULER_NO_TASK on error
+ */
+GNUNET_SCHEDULER_TaskIdentifier
+GNUNET_CONNECTION_receive (struct GNUNET_CONNECTION_Handle *sock,
+ size_t max,
+ struct GNUNET_TIME_Relative timeout,
+ GNUNET_CONNECTION_Receiver receiver, void *receiver_cls)
+{
+ struct GNUNET_SCHEDULER_TaskContext tc;
+
+ GNUNET_assert ((sock->read_task == GNUNET_SCHEDULER_NO_TASK) &&
+ (sock->receiver == NULL));
+ sock->receiver = receiver;
+ sock->receiver_cls = receiver_cls;
+ sock->receive_timeout = GNUNET_TIME_relative_to_absolute (timeout);
+ sock->max = max;
+ memset (&tc, 0, sizeof (tc));
+ tc.sched = sock->sched;
+ tc.reason = GNUNET_SCHEDULER_REASON_PREREQ_DONE;
+ receive_again (sock, &tc);
+ return sock->read_task;
+}
+
+
+/**
+ * Cancel receive job on the given socket. Note that the
+ * receiver callback must not have been called yet in order
+ * for the cancellation to be valid.
+ *
+ * @param sock socket handle
+ * @param task task identifier returned from the receive call
+ * @return closure of the original receiver callback
+ */
+void *
+GNUNET_CONNECTION_receive_cancel (struct GNUNET_CONNECTION_Handle *sock,
+ GNUNET_SCHEDULER_TaskIdentifier task)
+{
+ GNUNET_assert (sock->read_task == task);
+ GNUNET_assert (sock == GNUNET_SCHEDULER_cancel (sock->sched, task));
+ sock->read_task = GNUNET_SCHEDULER_NO_TASK;
+ sock->receiver = NULL;
+ return sock->receiver_cls;
+}
+
+
+/**
+ * Try to call the transmit notify method (check if we do
+ * have enough space available first)!
+ *
+ * @param sock socket for which we should do this processing
+ * @return GNUNET_YES if we were able to call notify
+ */
+static int
+process_notify (struct GNUNET_CONNECTION_Handle *sock)
+{
+ size_t used;
+ size_t avail;
+ size_t size;
+ GNUNET_CONNECTION_TransmitReadyNotify notify;
+
+ GNUNET_assert (sock->write_task == GNUNET_SCHEDULER_NO_TASK);
+ if (NULL == (notify = sock->nth.notify_ready))
+ return GNUNET_NO;
+ used = sock->write_buffer_off - sock->write_buffer_pos;
+ avail = sock->write_buffer_size - used;
+ size = sock->nth.notify_size;
+ if (sock->nth.notify_size > avail)
+ return GNUNET_NO;
+ sock->nth.notify_ready = NULL;
+ if (sock->nth.timeout_task != GNUNET_SCHEDULER_NO_TASK)
+ {
+ GNUNET_SCHEDULER_cancel (sock->sched, sock->nth.timeout_task);
+ sock->nth.timeout_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+ if (sock->write_buffer_size - sock->write_buffer_off < size)
+ {
+ /* need to compact */
+ memmove (sock->write_buffer,
+ &sock->write_buffer[sock->write_buffer_pos], used);
+ sock->write_buffer_off -= sock->write_buffer_pos;
+ sock->write_buffer_pos = 0;
+ }
+ GNUNET_assert (sock->write_buffer_size - sock->write_buffer_off >= size);
+ size = notify (sock->nth.notify_ready_cls,
+ sock->write_buffer_size - sock->write_buffer_off,
+ &sock->write_buffer[sock->write_buffer_off]);
+ sock->write_buffer_off += size;
+ return GNUNET_YES;
+}
+
+
+/**
+ * Task invoked by the scheduler when a call to transmit
+ * is timing out (we never got enough buffer space to call
+ * the callback function before the specified timeout
+ * expired).
+ *
+ * This task notifies the client about the timeout.
+ */
+static void
+transmit_timeout (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct GNUNET_CONNECTION_Handle *sock = cls;
+ GNUNET_CONNECTION_TransmitReadyNotify notify;
+
+#if DEBUG_CONNECTION
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Transmit fails, time out reached.\n");
+#endif
+ notify = sock->nth.notify_ready;
+ sock->nth.notify_ready = NULL;
+ notify (sock->nth.notify_ready_cls, 0, NULL);
+}
+
+
+static void
+transmit_error (struct GNUNET_CONNECTION_Handle *sock)
+{
+ if (sock->nth.notify_ready == NULL)
+ return; /* nobody to tell about it */
+ if (sock->nth.timeout_task != GNUNET_SCHEDULER_NO_TASK)
+ {
+ GNUNET_SCHEDULER_cancel (sock->sched, sock->nth.timeout_task);
+ sock->nth.timeout_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+ transmit_timeout (sock, NULL);
+}
+
+
+/**
+ * See if we are now connected. If not, wait longer for
+ * connect to succeed. If connected, we should be able
+ * to write now as well, unless we timed out.
+ */
+static void
+transmit_ready (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct GNUNET_CONNECTION_Handle *sock = cls;
+ ssize_t ret;
+ size_t have;
+
+ GNUNET_assert (sock->write_task != GNUNET_SCHEDULER_NO_TASK);
+ sock->write_task = GNUNET_SCHEDULER_NO_TASK;
+ if (sock->connect_task != GNUNET_SCHEDULER_NO_TASK)
+ {
+ /* still waiting for connect */
+ GNUNET_assert (sock->write_task ==
+ GNUNET_SCHEDULER_NO_TASK);
+ sock->write_task =
+ GNUNET_SCHEDULER_add_delayed (tc->sched, GNUNET_NO,
+ GNUNET_SCHEDULER_PRIORITY_KEEP,
+ sock->connect_task,
+ GNUNET_TIME_UNIT_ZERO, &transmit_ready,
+ sock);
+ return;
+ }
+ if ( (sock->sock == NULL) ||
+ ( (0 != (tc->reason & GNUNET_SCHEDULER_REASON_TIMEOUT)) &&
+ (0 == (tc->reason & GNUNET_SCHEDULER_REASON_PREREQ_DONE)) &&
+ (!GNUNET_NETWORK_fdset_isset (tc->write_ready, sock->sock))) )
+ {
+#if DEBUG_CONNECTION
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ _("Could not satisfy pending transmission request, socket closed or connect failed.\n"));
+#endif
+ if (NULL != sock->sock)
+ {
+ GNUNET_NETWORK_socket_shutdown (sock->sock, SHUT_RDWR);
+ GNUNET_break (0 == GNUNET_NETWORK_socket_close (sock->sock));
+ sock->sock = NULL;
+ }
+ transmit_error (sock);
+ return; /* connect failed for good, we're finished */
+ }
+ if ((tc->write_ready == NULL) || (!GNUNET_NETWORK_fdset_isset (tc->write_ready, sock->sock)))
+ {
+ /* special circumstances (in particular,
+ PREREQ_DONE after connect): not yet ready to write,
+ but no "fatal" error either. Hence retry. */
+ goto SCHEDULE_WRITE;
+ }
+ GNUNET_assert (sock->write_buffer_off >= sock->write_buffer_pos);
+ process_notify (sock);
+ have = sock->write_buffer_off - sock->write_buffer_pos;
+ if (have == 0)
+ {
+ /* no data ready for writing, terminate write loop */
+ return;
+ }
+RETRY:
+ ret = GNUNET_NETWORK_socket_send (sock->sock,
+ &sock->write_buffer[sock->write_buffer_pos],
+ have,
+#ifndef MINGW
+ // FIXME NILS
+ MSG_DONTWAIT | MSG_NOSIGNAL
+#else
+ 0
+#endif
+ );
+ if (ret == -1)
+ {
+ if (errno == EINTR)
+ goto RETRY;
+#if DEBUG_CONNECTION
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_DEBUG, "send");
+#endif
+ GNUNET_NETWORK_socket_shutdown (sock->sock, SHUT_RDWR);
+ GNUNET_break (0 == GNUNET_NETWORK_socket_close (sock->sock));
+ sock->sock = NULL;
+ transmit_error (sock);
+ return;
+ }
+#if DEBUG_CONNECTION
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "transmit_ready transmitted %u/%u bytes to `%s'\n",
+ (unsigned int) ret,
+ have,
+ GNUNET_a2s(sock->addr, sock->addrlen));
+#endif
+ sock->write_buffer_pos += ret;
+ if (sock->write_buffer_pos == sock->write_buffer_off)
+ {
+ /* transmitted all pending data */
+ sock->write_buffer_pos = 0;
+ sock->write_buffer_off = 0;
+ }
+ if ((sock->write_buffer_off == 0) && (NULL == sock->nth.notify_ready))
+ return; /* all data sent! */
+ /* not done writing, schedule more */
+SCHEDULE_WRITE:
+ if (sock->write_task == GNUNET_SCHEDULER_NO_TASK)
+ sock->write_task =
+ GNUNET_SCHEDULER_add_write_net (tc->sched,
+ GNUNET_NO,
+ GNUNET_SCHEDULER_PRIORITY_KEEP,
+ GNUNET_SCHEDULER_NO_TASK,
+ GNUNET_TIME_absolute_get_remaining (sock->nth.transmit_timeout),
+ sock->sock, &transmit_ready, sock);
+}
+
+
+/**
+ * Ask the socket to call us once the specified number of bytes
+ * are free in the transmission buffer. May call the notify
+ * method immediately if enough space is available.
+ *
+ * @param sock socket
+ * @param size number of bytes to send
+ * @param timeout after how long should we give up (and call
+ * notify with buf NULL and size 0)?
+ * @param notify function to call
+ * @param notify_cls closure for notify
+ * @return non-NULL if the notify callback was queued,
+ * NULL if we are already going to notify someone else (busy)
+ */
+struct GNUNET_CONNECTION_TransmitHandle *
+GNUNET_CONNECTION_notify_transmit_ready (struct GNUNET_CONNECTION_Handle
+ *sock, size_t size,
+ struct GNUNET_TIME_Relative timeout,
+ GNUNET_CONNECTION_TransmitReadyNotify
+ notify, void *notify_cls)
+{
+ if (sock->nth.notify_ready != NULL)
+ return NULL;
+ GNUNET_assert (notify != NULL);
+ GNUNET_assert (sock->write_buffer_size >= size);
+
+ if ((sock->sock == NULL) &&
+ (sock->connect_task == GNUNET_SCHEDULER_NO_TASK))
+ {
+#if DEBUG_CONNECTION
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Transmission request of size %u fails, connection failed.\n",
+ size);
+#endif
+ notify (notify_cls, 0, NULL);
+ return &sock->nth;
+ }
+ GNUNET_assert (sock->write_buffer_off <= sock->write_buffer_size);
+ GNUNET_assert (sock->write_buffer_pos <= sock->write_buffer_size);
+ GNUNET_assert (sock->write_buffer_pos <= sock->write_buffer_off);
+ sock->nth.notify_ready = notify;
+ sock->nth.notify_ready_cls = notify_cls;
+ sock->nth.sh = sock;
+ sock->nth.notify_size = size;
+ sock->nth.transmit_timeout = GNUNET_TIME_relative_to_absolute (timeout);
+ sock->nth.timeout_task = GNUNET_SCHEDULER_add_delayed (sock->sched,
+ GNUNET_NO,
+ GNUNET_SCHEDULER_PRIORITY_KEEP,
+ GNUNET_SCHEDULER_NO_TASK,
+ timeout,
+ &transmit_timeout,
+ sock);
+ if (sock->write_task == GNUNET_SCHEDULER_NO_TASK)
+ {
+ if (sock->connect_task == GNUNET_SCHEDULER_NO_TASK)
+ sock->write_task = GNUNET_SCHEDULER_add_write_net (sock->sched,
+ GNUNET_NO,
+ GNUNET_SCHEDULER_PRIORITY_KEEP,
+ GNUNET_SCHEDULER_NO_TASK,
+ GNUNET_TIME_absolute_get_remaining (sock->nth.transmit_timeout),
+ sock->sock,
+ &transmit_ready, sock);
+ else
+ sock->write_task = GNUNET_SCHEDULER_add_delayed (sock->sched,
+ GNUNET_NO,
+ GNUNET_SCHEDULER_PRIORITY_KEEP,
+ sock->connect_task,
+ GNUNET_TIME_UNIT_ZERO,
+ &transmit_ready, sock);
+ }
+ return &sock->nth;
+}
+
+
+/**
+ * Cancel the specified transmission-ready
+ * notification.
+ */
+void
+GNUNET_CONNECTION_notify_transmit_ready_cancel (struct
+ GNUNET_CONNECTION_TransmitHandle *h)
+{
+ GNUNET_assert (h->notify_ready != NULL);
+ GNUNET_SCHEDULER_cancel (h->sh->sched, h->timeout_task);
+ h->timeout_task = GNUNET_SCHEDULER_NO_TASK;
+ h->notify_ready = NULL;
+}
+
+
+#if 0 /* keep Emacsens' auto-indent happy */
+{
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+/* end of connection.c */
+++ /dev/null
-/*
- This file is part of GNUnet.
- (C) 2009 Christian Grothoff (and other contributing authors)
-
- GNUnet is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 2, or (at your
- option) any later version.
-
- GNUnet is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
-*/
-
-/**
- * @file util/network/network.c
- * @brief basic, low-level TCP networking interface
- * @author Christian Grothoff
- *
- * This code is rather complex. Only modify it if you
- * 1) Have a NEW testcase showing that the new code
- * is needed and correct
- * 2) All EXISTING testcases pass with the new code
- * These rules should apply in general, but for this
- * module they are VERY, VERY important.
- *
- * TODO:
- * - can we merge receive_ready and receive_again?
- * - can we integrate the nth.timeout_task with the write_task's timeout?
- */
-
-#include "platform.h"
-#include "gnunet_common.h"
-#include "gnunet_connection_lib.h"
-#include "gnunet_scheduler_lib.h"
-
-#define DEBUG_NETWORK GNUNET_NO
-
-/**
- * List of address families to give as hints to
- * getaddrinfo, in reverse order of preference.
- */
-static int address_families[] =
- { AF_INET, AF_INET6, AF_UNSPEC };
-
-struct GNUNET_CONNECTION_TransmitHandle
-{
-
- /**
- * Function to call if the send buffer has notify_size
- * bytes available.
- */
- GNUNET_CONNECTION_TransmitReadyNotify notify_ready;
-
- /**
- * Closure for notify_ready.
- */
- void *notify_ready_cls;
-
- /**
- * Our socket handle.
- */
- struct GNUNET_CONNECTION_Handle *sh;
-
- /**
- * Timeout for receiving (in absolute time).
- */
- struct GNUNET_TIME_Absolute transmit_timeout;
-
- /**
- * Task called on timeout.
- */
- GNUNET_SCHEDULER_TaskIdentifier timeout_task;
-
- /**
- * At what number of bytes available in the
- * write buffer should the notify method be called?
- */
- size_t notify_size;
-
-};
-
-/**
- * @brief handle for a network socket
- */
-struct GNUNET_CONNECTION_Handle
-{
-
- /**
- * Scheduler that was used for the connect task.
- */
- struct GNUNET_SCHEDULER_Handle *sched;
-
- /**
- * Address information for connect (may be NULL).
- */
- struct addrinfo *ai;
-
- /**
- * Index for the next struct addrinfo for connect attempts (may be NULL)
- */
- struct addrinfo *ai_pos;
-
- /**
- * Network address of the other end-point, may be NULL.
- */
- struct sockaddr *addr;
-
- /**
- * Pointer to the hostname if socket was
- * created using DNS lookup, otherwise NULL.
- */
- char *hostname;
-
- /**
- * Pointer to our write buffer.
- */
- char *write_buffer;
-
- /**
- * Size of our write buffer.
- */
- size_t write_buffer_size;
-
- /**
- * Current write-offset in write buffer (where
- * would we write next).
- */
- size_t write_buffer_off;
-
- /**
- * Current read-offset in write buffer (how many
- * bytes have already been send).
- */
- size_t write_buffer_pos;
-
- /**
- * Length of addr.
- */
- socklen_t addrlen;
-
- /**
- * Offset in our address family list
- * that we used last.
- */
- int af_fam_offset;
-
- /**
- * Connect task that we may need to wait for.
- */
- GNUNET_SCHEDULER_TaskIdentifier connect_task;
-
- /**
- * Read task that we may need to wait for.
- */
- GNUNET_SCHEDULER_TaskIdentifier read_task;
-
- /**
- * Write task that we may need to wait for.
- */
- GNUNET_SCHEDULER_TaskIdentifier write_task;
-
- /**
- * The handle we return for GNUNET_CONNECTION_notify_transmit_ready.
- */
- struct GNUNET_CONNECTION_TransmitHandle nth;
-
- /**
- * Underlying OS's socket, set to NULL after fatal errors.
- */
- struct GNUNET_NETWORK_Descriptor *sock;
-
- /**
- * Port to connect to.
- */
- uint16_t port;
-
- /**
- * Function to call on data received, NULL
- * if no receive is pending.
- */
- GNUNET_CONNECTION_Receiver receiver;
-
- /**
- * Closure for receiver.
- */
- void *receiver_cls;
-
- /**
- * Timeout for receiving (in absolute time).
- */
- struct GNUNET_TIME_Absolute receive_timeout;
-
- /**
- * Maximum number of bytes to read
- * (for receiving).
- */
- size_t max;
-
-};
-
-
-/**
- * Create a socket handle by boxing an existing OS socket. The OS
- * socket should henceforth be no longer used directly.
- * GNUNET_socket_destroy will close it.
- *
- * @param sched scheduler to use
- * @param osSocket existing socket to box
- * @param maxbuf maximum write buffer size for the socket (use
- * 0 for sockets that need no write buffers, such as listen sockets)
- * @return the boxed socket handle
- */
-struct GNUNET_CONNECTION_Handle *
-GNUNET_CONNECTION_create_from_existing (struct GNUNET_SCHEDULER_Handle
- *sched, struct GNUNET_NETWORK_Descriptor *osSocket,
- size_t maxbuf)
-{
- struct GNUNET_CONNECTION_Handle *ret;
- ret = GNUNET_malloc (sizeof (struct GNUNET_CONNECTION_Handle) + maxbuf);
- ret->write_buffer = (char *) &ret[1];
- ret->write_buffer_size = maxbuf;
- ret->sock = osSocket;
- ret->sched = sched;
- return ret;
-}
-
-
-/**
- * Create a socket handle by accepting on a listen socket. This
- * function may block if the listen socket has no connection ready.
- *
- * @param sched scheduler to use
- * @param access function to use to check if access is allowed
- * @param access_cls closure for access
- * @param lsock listen socket
- * @param maxbuf maximum write buffer size for the socket (use
- * 0 for sockets that need no write buffers, such as listen sockets)
- * @return the socket handle, NULL on error
- */
-struct GNUNET_CONNECTION_Handle *
-GNUNET_CONNECTION_create_from_accept (struct GNUNET_SCHEDULER_Handle
- *sched,
- GNUNET_CONNECTION_AccessCheck access,
- void *access_cls, struct GNUNET_NETWORK_Descriptor *lsock,
- size_t maxbuf)
-{
- struct GNUNET_CONNECTION_Handle *ret;
- char addr[32];
- socklen_t addrlen;
- struct GNUNET_NETWORK_Descriptor *sock;
- int aret;
- struct sockaddr_in *v4;
- struct sockaddr_in6 *v6;
- struct sockaddr *sa;
- void *uaddr;
-
- addrlen = sizeof (addr);
- sock = GNUNET_NETWORK_socket_accept (lsock, (struct sockaddr *) &addr, &addrlen);
- if (NULL == sock)
- {
- GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "accept");
- return NULL;
- }
-#ifndef MINGW
- if (GNUNET_OK != GNUNET_NETWORK_socket_set_inheritable (sock))
- GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
- "fcntl");
-#endif
- if (addrlen > sizeof (addr))
- {
- GNUNET_break (0);
- GNUNET_break (0 == GNUNET_NETWORK_socket_close (sock));
- return NULL;
- }
-
- sa = (struct sockaddr *) addr;
- v6 = (struct sockaddr_in6 *) addr;
- if ((sa->sa_family == AF_INET6) && (IN6_IS_ADDR_V4MAPPED (&v6->sin6_addr)))
- {
- /* convert to V4 address */
- v4 = GNUNET_malloc (sizeof (struct sockaddr_in));
- memset (v4, 0, sizeof (struct sockaddr_in));
- v4->sin_family = AF_INET;
- memcpy (&v4->sin_addr,
- &((char *) &v6->sin6_addr)[sizeof (struct in6_addr) -
- sizeof (struct in_addr)],
- sizeof (struct in_addr));
- v4->sin_port = v6->sin6_port;
- uaddr = v4;
- addrlen = sizeof (struct sockaddr_in);
- }
- else
- {
- uaddr = GNUNET_malloc (addrlen);
- memcpy (uaddr, addr, addrlen);
- }
-
- if ((access != NULL) &&
- (GNUNET_YES != (aret = access (access_cls, uaddr, addrlen))))
- {
- if (aret == GNUNET_NO)
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- _("Access denied to `%s'\n"),
- GNUNET_a2s(uaddr, addrlen));
- GNUNET_break (0 == GNUNET_NETWORK_socket_shutdown (sock, SHUT_RDWR));
- GNUNET_break (0 == GNUNET_NETWORK_socket_close (sock));
- GNUNET_free (uaddr);
- return NULL;
- }
-#if DEBUG_NETWORK
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- _("Accepting connection from `%s'\n"),
- GNUNET_a2s(uaddr, addrlen));
-#endif
- ret = GNUNET_malloc (sizeof (struct GNUNET_CONNECTION_Handle) + maxbuf);
- ret->write_buffer = (char *) &ret[1];
- ret->write_buffer_size = maxbuf;
- ret->addr = uaddr;
- ret->addrlen = addrlen;
- ret->sock = sock;
- ret->sched = sched;
- return ret;
-}
-
-/**
- * Obtain the network address of the other party.
- *
- * @param sock the client to get the address for
- * @param addr where to store the address
- * @param addrlen where to store the length of the address
- * @return GNUNET_OK on success
- */
-int
-GNUNET_CONNECTION_get_address (struct GNUNET_CONNECTION_Handle *sock,
- void **addr, size_t * addrlen)
-{
- if ((sock->addr == NULL) || (sock->addrlen == 0))
- return GNUNET_NO;
- *addr = GNUNET_malloc (sock->addrlen);
- memcpy (*addr, sock->addr, sock->addrlen);
- *addrlen = sock->addrlen;
- return GNUNET_OK;
-}
-
-/**
- * Perform a DNS lookup for the hostname associated
- * with the current socket, iterating over the address
- * families as specified in the "address_families" array.
- */
-static void
-try_lookup (struct GNUNET_CONNECTION_Handle *sock)
-{
- struct addrinfo hints;
- int ec;
-
- while ( (sock->ai_pos == NULL) &&
- (sock->af_fam_offset > 0) )
- {
- if (sock->ai != NULL)
- freeaddrinfo (sock->ai);
- memset (&hints, 0, sizeof (hints));
- hints.ai_family = address_families[--sock->af_fam_offset];
- hints.ai_socktype = SOCK_STREAM;
- if (0 != (ec = getaddrinfo (sock->hostname, NULL, &hints, &sock->ai)))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_INFO | GNUNET_ERROR_TYPE_BULK,
- "`%s' failed for hostname `%s': %s\n",
- "getaddrinfo", sock->hostname, gai_strerror (ec));
- sock->ai = NULL;
- }
- sock->ai_pos = sock->ai;
- }
-}
-
-
-/**
- * Initiate asynchronous TCP connect request.
- *
- * @param sock what socket to connect
- * @return GNUNET_SYSERR error (no more addresses to try)
- */
-static int
-try_connect (struct GNUNET_CONNECTION_Handle *sock)
-{
- struct GNUNET_NETWORK_Descriptor *s;
-
- if (sock->addr != NULL)
- {
- GNUNET_free (sock->addr);
- sock->addr = NULL;
- sock->addrlen = 0;
- }
- while (1)
- {
- if (sock->ai_pos == NULL)
- try_lookup (sock);
- if (sock->ai_pos == NULL)
- {
- /* no more addresses to try, fatal! */
- return GNUNET_SYSERR;
- }
- switch (sock->ai_pos->ai_family)
- {
- case AF_INET:
- ((struct sockaddr_in *) sock->ai_pos->ai_addr)->sin_port =
- htons (sock->port);
- break;
- case AF_INET6:
- ((struct sockaddr_in6 *) sock->ai_pos->ai_addr)->sin6_port =
- htons (sock->port);
- break;
- default:
- sock->ai_pos = sock->ai_pos->ai_next;
- continue;
- }
- s = GNUNET_NETWORK_socket_socket (sock->ai_pos->ai_family, SOCK_STREAM, 0);
- if (s == NULL)
- {
- /* maybe unsupported address family, try next */
- GNUNET_log_strerror (GNUNET_ERROR_TYPE_INFO, "socket");
- sock->ai_pos = sock->ai_pos->ai_next;
- continue;
- }
-#ifndef MINGW
- if (GNUNET_OK != GNUNET_NETWORK_socket_set_inheritable (s))
- GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
- "GNUNET_NETWORK_socket_set_inheritable");
-#endif
- if (GNUNET_SYSERR == GNUNET_NETWORK_socket_set_blocking (s, GNUNET_NO))
- {
- /* we'll treat this one as fatal */
- GNUNET_break (0 == GNUNET_NETWORK_socket_close (s));
- return GNUNET_SYSERR;
- }
-#if DEBUG_NETWORK
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- _("Trying to connect to `%s'\n"),
- GNUNET_a2s(sock->ai_pos->ai_addr,
- sock->ai_pos->ai_addrlen));
-#endif
- if ((0 != GNUNET_NETWORK_socket_connect (s,
- sock->ai_pos->ai_addr,
- sock->ai_pos->ai_addrlen)) && (errno != EINPROGRESS))
- {
- /* maybe refused / unsupported address, try next */
- GNUNET_log_strerror (GNUNET_ERROR_TYPE_INFO, "connect");
- GNUNET_break (0 == GNUNET_NETWORK_socket_close (s));
- sock->ai_pos = sock->ai_pos->ai_next;
- continue;
- }
- break;
- }
- /* got one! copy address information! */
- sock->addrlen = sock->ai_pos->ai_addrlen;
- sock->addr = GNUNET_malloc (sock->addrlen);
- memcpy (sock->addr, sock->ai_pos->ai_addr, sock->addrlen);
- sock->ai_pos = sock->ai_pos->ai_next;
- sock->sock = s;
- return GNUNET_OK;
-}
-
-
-/**
- * Scheduler let us know that we're either ready to
- * write on the socket OR connect timed out. Do the
- * right thing.
- */
-static void
-connect_continuation (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct GNUNET_CONNECTION_Handle *sock = cls;
- unsigned int len;
- int error;
-
- /* nobody needs to wait for us anymore... */
- sock->connect_task = GNUNET_SCHEDULER_NO_TASK;
- /* Note: write-ready does NOT mean connect succeeded,
- we need to use getsockopt to be sure */
- len = sizeof (error);
- errno = 0;
- error = 0;
- if ((0 == (tc->reason & GNUNET_SCHEDULER_REASON_WRITE_READY)) ||
- (0 != GNUNET_NETWORK_socket_getsockopt (sock->sock, SOL_SOCKET, SO_ERROR, &error, &len)) ||
- (error != 0) || (errno != 0))
- {
-#if DEBUG_NETWORK
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Failed to establish TCP connection to `%s'\n",
- GNUNET_a2s(sock->addr, sock->addrlen));
-#endif
- /* connect failed / timed out */
- GNUNET_break (0 == GNUNET_NETWORK_socket_close (sock->sock));
- sock->sock = NULL;
- if (GNUNET_SYSERR == try_connect (sock))
- {
- /* failed for good */
-#if DEBUG_NETWORK
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Failed to establish TCP connection, no further addresses to try.\n");
-#endif
- /* connect failed / timed out */
- GNUNET_break (sock->ai_pos == NULL);
- freeaddrinfo (sock->ai);
- sock->ai = NULL;
- return;
- }
- sock->connect_task = GNUNET_SCHEDULER_add_write_net (tc->sched, GNUNET_NO, /* abort on shutdown */
- GNUNET_SCHEDULER_PRIORITY_KEEP,
- GNUNET_SCHEDULER_NO_TASK,
- GNUNET_CONNECTION_CONNECT_RETRY_TIMEOUT,
- sock->sock,
- &connect_continuation,
- sock);
- return;
- }
- /* connect succeeded! clean up "ai" */
-#if DEBUG_NETWORK
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Connection to `%s' succeeded!\n",
- GNUNET_a2s(sock->addr, sock->addrlen));
-#endif
- freeaddrinfo (sock->ai);
- sock->ai_pos = NULL;
- sock->ai = NULL;
-}
-
-
-/**
- * Create a socket handle by (asynchronously) connecting to a host.
- * This function returns immediately, even if the connection has not
- * yet been established. This function only creates TCP connections.
- *
- * @param sched scheduler to use
- * @param hostname name of the host to connect to
- * @param port port to connect to
- * @param maxbuf maximum write buffer size for the socket (use
- * 0 for sockets that need no write buffers, such as listen sockets)
- * @return the socket handle
- */
-struct GNUNET_CONNECTION_Handle *
-GNUNET_CONNECTION_create_from_connect (struct GNUNET_SCHEDULER_Handle
- *sched, const char *hostname,
- uint16_t port, size_t maxbuf)
-{
- struct GNUNET_CONNECTION_Handle *ret;
-
- ret = GNUNET_malloc (sizeof (struct GNUNET_CONNECTION_Handle) + maxbuf);
- ret->sock = NULL;
- ret->sched = sched;
- ret->write_buffer = (char *) &ret[1];
- ret->write_buffer_size = maxbuf;
- ret->port = port;
- ret->af_fam_offset = sizeof (address_families) / sizeof(address_families[0]);
- ret->hostname = GNUNET_strdup (hostname);
- if (GNUNET_SYSERR == try_connect (ret))
- {
- if (NULL != ret->ai)
- freeaddrinfo (ret->ai);
- GNUNET_free (ret->hostname);
- GNUNET_free (ret);
- return NULL;
- }
- ret->connect_task = GNUNET_SCHEDULER_add_write_net (sched, GNUNET_NO, /* abort on shutdown */
- GNUNET_SCHEDULER_PRIORITY_KEEP,
- GNUNET_SCHEDULER_NO_TASK,
- GNUNET_CONNECTION_CONNECT_RETRY_TIMEOUT,
- ret->sock,
- &connect_continuation, ret);
- return ret;
-
-}
-
-
-/**
- * Create a socket handle by (asynchronously) connecting to a host.
- * This function returns immediately, even if the connection has not
- * yet been established. This function only creates TCP connections.
- *
- * @param sched scheduler to use
- * @param af_family address family to use
- * @param serv_addr server address
- * @param addrlen length of server address
- * @param maxbuf maximum write buffer size for the socket (use
- * 0 for sockets that need no write buffers, such as listen sockets)
- * @return the socket handle
- */
-struct GNUNET_CONNECTION_Handle *
-GNUNET_CONNECTION_create_from_sockaddr (struct GNUNET_SCHEDULER_Handle
- *sched, int af_family,
- const struct sockaddr *serv_addr,
- socklen_t addrlen, size_t maxbuf)
-{
- struct GNUNET_NETWORK_Descriptor *s;
- struct GNUNET_CONNECTION_Handle *ret;
-
- s = GNUNET_NETWORK_socket_socket (af_family, SOCK_STREAM, 0);
- if (s == NULL)
- {
- GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING |
- GNUNET_ERROR_TYPE_BULK, "socket");
- return NULL;
- }
-#ifndef MINGW
-#if 0
- // FIXME NILS
- if (0 != fcntl (s, F_SETFD, fcntl (s, F_GETFD) | FD_CLOEXEC))
- GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
- "fcntl");
-#endif
-#endif
- if (GNUNET_SYSERR == GNUNET_NETWORK_socket_set_blocking (s, GNUNET_NO))
- {
- /* we'll treat this one as fatal */
- GNUNET_break (0 == GNUNET_NETWORK_socket_close (s));
- return NULL;
- }
-#if DEBUG_NETWORK
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- _("Trying to connect to `%s'\n"),
- GNUNET_a2s(serv_addr, addrlen));
-#endif
- if ((0 != GNUNET_NETWORK_socket_connect (s, serv_addr, addrlen)) && (errno != EINPROGRESS))
- {
- /* maybe refused / unsupported address, try next */
- GNUNET_log_strerror (GNUNET_ERROR_TYPE_INFO, "connect");
- GNUNET_break (0 == GNUNET_NETWORK_socket_close (s));
- return NULL;
- }
- ret = GNUNET_CONNECTION_create_from_existing (sched, s, maxbuf);
- ret->addr = GNUNET_malloc (addrlen);
- memcpy (ret->addr, serv_addr, addrlen);
- ret->addrlen = addrlen;
- return ret;
-}
-
-
-/**
- * Check if socket is valid (no fatal errors have happened so far).
- * Note that a socket that is still trying to connect is considered
- * valid.
- *
- * @param sock socket to check
- * @return GNUNET_YES if valid, GNUNET_NO otherwise
- */
-int
-GNUNET_CONNECTION_check (struct GNUNET_CONNECTION_Handle *sock)
-{
- if (sock->ai != NULL)
- return GNUNET_YES; /* still trying to connect */
- return (sock->sock == NULL) ? GNUNET_NO : GNUNET_YES;
-}
-
-
-/**
- * Scheduler let us know that the connect task is finished (or was
- * cancelled due to shutdown). Now really clean up.
- */
-static void
-destroy_continuation (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct GNUNET_CONNECTION_Handle *sock = cls;
- GNUNET_CONNECTION_TransmitReadyNotify notify;
-
- if (sock->write_task != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_add_after (sock->sched,
- GNUNET_YES,
- GNUNET_SCHEDULER_PRIORITY_KEEP,
- sock->write_task,
- &destroy_continuation, sock);
- return;
- }
- if (sock->sock != NULL)
- {
-#if DEBUG_NETWORK
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Shutting down socket.\n");
-#endif
- GNUNET_NETWORK_socket_shutdown (sock->sock, SHUT_RDWR);
- }
- if (sock->read_task != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_add_after (sock->sched,
- GNUNET_YES,
- GNUNET_SCHEDULER_PRIORITY_KEEP,
- sock->read_task,
- &destroy_continuation, sock);
- return;
- }
- if (NULL != (notify = sock->nth.notify_ready))
- {
- sock->nth.notify_ready = NULL;
- notify (sock->nth.notify_ready_cls, 0, NULL);
- if (sock->nth.timeout_task != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_cancel (sock->sched, sock->nth.timeout_task);
- sock->nth.timeout_task = GNUNET_SCHEDULER_NO_TASK;
- }
- }
- if (sock->sock != NULL)
- GNUNET_break (0 == GNUNET_NETWORK_socket_close (sock->sock));
- GNUNET_free_non_null (sock->addr);
- if (sock->ai != NULL)
- freeaddrinfo (sock->ai);
- GNUNET_free_non_null (sock->hostname);
- GNUNET_free (sock);
-}
-
-
-/**
- * Close the socket and free associated resources. Pending
- * transmissions are simply dropped. A pending receive call will be
- * called with an error code of "EPIPE".
- *
- * @param sock socket to destroy
- */
-void
-GNUNET_CONNECTION_destroy (struct GNUNET_CONNECTION_Handle *sock)
-{
- if (sock->write_buffer_off == 0)
- sock->ai_pos = NULL; /* if we're still trying to connect and have
- no message pending, stop trying! */
- GNUNET_assert (sock->sched != NULL);
- GNUNET_SCHEDULER_add_after (sock->sched,
- GNUNET_YES,
- GNUNET_SCHEDULER_PRIORITY_KEEP,
- sock->connect_task,
- &destroy_continuation, sock);
-}
-
-/**
- * Tell the receiver callback that a timeout was reached.
- */
-static void
-signal_timeout (struct GNUNET_CONNECTION_Handle *sh)
-{
- GNUNET_CONNECTION_Receiver receiver;
-
-#if DEBUG_NETWORK
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Network signals time out to receiver!\n");
-#endif
- GNUNET_assert (NULL != (receiver = sh->receiver));
- sh->receiver = NULL;
- receiver (sh->receiver_cls, NULL, 0, NULL, 0, 0);
-}
-
-
-/**
- * Tell the receiver callback that we had an IO error.
- */
-static void
-signal_error (struct GNUNET_CONNECTION_Handle *sh, int errcode)
-{
- GNUNET_CONNECTION_Receiver receiver;
- GNUNET_assert (NULL != (receiver = sh->receiver));
- sh->receiver = NULL;
- receiver (sh->receiver_cls, NULL, 0, sh->addr, sh->addrlen, errcode);
-}
-
-
-/**
- * This function is called once we either timeout
- * or have data ready to read.
- */
-static void
-receive_ready (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct GNUNET_CONNECTION_Handle *sh = cls;
- struct GNUNET_TIME_Absolute now;
- char buffer[sh->max];
- ssize_t ret;
- GNUNET_CONNECTION_Receiver receiver;
-
- sh->read_task = GNUNET_SCHEDULER_NO_TASK;
- now = GNUNET_TIME_absolute_get ();
- if ((now.value > sh->receive_timeout.value) ||
- (0 != (tc->reason & GNUNET_SCHEDULER_REASON_TIMEOUT)) ||
- (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN)))
- {
-#if DEBUG_NETWORK
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Receive encounters error: time out...\n");
-#endif
- signal_timeout (sh);
- return;
- }
- if (sh->sock == NULL)
- {
- /* connect failed for good */
-#if DEBUG_NETWORK
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Receive encounters error, socket closed...\n");
-#endif
- signal_error (sh, ECONNREFUSED);
- return;
- }
- GNUNET_assert (GNUNET_NETWORK_fdset_isset (tc->read_ready, sh->sock));
-RETRY:
- ret = GNUNET_NETWORK_socket_recv (sh->sock, buffer, sh->max,
-#ifndef MINGW
- // FIXME MINGW
- MSG_DONTWAIT
-#else
- 0
-#endif
- );
- if (ret == -1)
- {
- if (errno == EINTR)
- goto RETRY;
-#if DEBUG_NETWORK
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Error receiving: %s\n", STRERROR (errno));
-#endif
- signal_error (sh, errno);
- return;
- }
-#if DEBUG_NETWORK
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "receive_ready read %u/%u bytes from `%s'!\n",
- (unsigned int) ret,
- sh->max,
- GNUNET_a2s(sh->addr, sh->addrlen));
-#endif
- GNUNET_assert (NULL != (receiver = sh->receiver));
- sh->receiver = NULL;
- receiver (sh->receiver_cls, buffer, ret, sh->addr, sh->addrlen, 0);
-}
-
-
-/**
- * This function is called after establishing a connection either has
- * succeeded or timed out. Note that it is possible that the attempt
- * timed out and that we're immediately retrying. If we are retrying,
- * we need to wait again (or timeout); if we succeeded, we need to
- * wait for data (or timeout).
- */
-static void
-receive_again (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct GNUNET_CONNECTION_Handle *sh = cls;
- struct GNUNET_TIME_Absolute now;
-
- sh->read_task = GNUNET_SCHEDULER_NO_TASK;
- if ((sh->sock == NULL) &&
- (sh->connect_task == GNUNET_SCHEDULER_NO_TASK))
- {
- /* not connected and no longer trying */
-#if DEBUG_NETWORK
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Receive encounters error, socket closed...\n");
-#endif
- signal_error (sh, ECONNREFUSED);
- return;
- }
- now = GNUNET_TIME_absolute_get ();
- if ((now.value > sh->receive_timeout.value) ||
- (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN)))
- {
-#if DEBUG_NETWORK
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Receive encounters error: time out...\n");
-#endif
- signal_timeout (sh);
- return;
- }
- if (sh->connect_task != GNUNET_SCHEDULER_NO_TASK)
- {
- /* connect was retried */
- sh->read_task = GNUNET_SCHEDULER_add_after (tc->sched,
- GNUNET_YES,
- GNUNET_SCHEDULER_PRIORITY_KEEP,
- sh->connect_task,
- &receive_again, sh);
- return;
- }
- /* connect succeeded, wait for data! */
- sh->read_task = GNUNET_SCHEDULER_add_read_net (tc->sched,
- GNUNET_YES,
- GNUNET_SCHEDULER_PRIORITY_KEEP,
- sh->connect_task,
- GNUNET_TIME_absolute_get_remaining
- (sh->receive_timeout),
- sh->sock, &receive_ready,
- sh);
-}
-
-
-/**
- * Receive data from the given socket. Note that this function will
- * call "receiver" asynchronously using the scheduler. It will
- * "immediately" return. Note that there MUST only be one active
- * receive call per socket at any given point in time (so do not
- * call receive again until the receiver callback has been invoked).
- *
- * @param sched scheduler to use
- * @param sock socket handle
- * @param max maximum number of bytes to read
- * @param timeout maximum amount of time to wait (use -1 for "forever")
- * @param receiver function to call with received data
- * @param receiver_cls closure for receiver
- * @return scheduler task ID used for receiving, GNUNET_SCHEDULER_NO_TASK on error
- */
-GNUNET_SCHEDULER_TaskIdentifier
-GNUNET_CONNECTION_receive (struct GNUNET_CONNECTION_Handle *sock,
- size_t max,
- struct GNUNET_TIME_Relative timeout,
- GNUNET_CONNECTION_Receiver receiver, void *receiver_cls)
-{
- struct GNUNET_SCHEDULER_TaskContext tc;
-
- GNUNET_assert ((sock->read_task == GNUNET_SCHEDULER_NO_TASK) &&
- (sock->receiver == NULL));
- sock->receiver = receiver;
- sock->receiver_cls = receiver_cls;
- sock->receive_timeout = GNUNET_TIME_relative_to_absolute (timeout);
- sock->max = max;
- memset (&tc, 0, sizeof (tc));
- tc.sched = sock->sched;
- tc.reason = GNUNET_SCHEDULER_REASON_PREREQ_DONE;
- receive_again (sock, &tc);
- return sock->read_task;
-}
-
-
-/**
- * Cancel receive job on the given socket. Note that the
- * receiver callback must not have been called yet in order
- * for the cancellation to be valid.
- *
- * @param sock socket handle
- * @param task task identifier returned from the receive call
- * @return closure of the original receiver callback
- */
-void *
-GNUNET_CONNECTION_receive_cancel (struct GNUNET_CONNECTION_Handle *sock,
- GNUNET_SCHEDULER_TaskIdentifier task)
-{
- GNUNET_assert (sock->read_task == task);
- GNUNET_assert (sock == GNUNET_SCHEDULER_cancel (sock->sched, task));
- sock->read_task = GNUNET_SCHEDULER_NO_TASK;
- sock->receiver = NULL;
- return sock->receiver_cls;
-}
-
-
-/**
- * Try to call the transmit notify method (check if we do
- * have enough space available first)!
- *
- * @param sock socket for which we should do this processing
- * @return GNUNET_YES if we were able to call notify
- */
-static int
-process_notify (struct GNUNET_CONNECTION_Handle *sock)
-{
- size_t used;
- size_t avail;
- size_t size;
- GNUNET_CONNECTION_TransmitReadyNotify notify;
-
- GNUNET_assert (sock->write_task == GNUNET_SCHEDULER_NO_TASK);
- if (NULL == (notify = sock->nth.notify_ready))
- return GNUNET_NO;
- used = sock->write_buffer_off - sock->write_buffer_pos;
- avail = sock->write_buffer_size - used;
- size = sock->nth.notify_size;
- if (sock->nth.notify_size > avail)
- return GNUNET_NO;
- sock->nth.notify_ready = NULL;
- if (sock->nth.timeout_task != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_cancel (sock->sched, sock->nth.timeout_task);
- sock->nth.timeout_task = GNUNET_SCHEDULER_NO_TASK;
- }
- if (sock->write_buffer_size - sock->write_buffer_off < size)
- {
- /* need to compact */
- memmove (sock->write_buffer,
- &sock->write_buffer[sock->write_buffer_pos], used);
- sock->write_buffer_off -= sock->write_buffer_pos;
- sock->write_buffer_pos = 0;
- }
- GNUNET_assert (sock->write_buffer_size - sock->write_buffer_off >= size);
- size = notify (sock->nth.notify_ready_cls,
- sock->write_buffer_size - sock->write_buffer_off,
- &sock->write_buffer[sock->write_buffer_off]);
- sock->write_buffer_off += size;
- return GNUNET_YES;
-}
-
-
-/**
- * Task invoked by the scheduler when a call to transmit
- * is timing out (we never got enough buffer space to call
- * the callback function before the specified timeout
- * expired).
- *
- * This task notifies the client about the timeout.
- */
-static void
-transmit_timeout (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct GNUNET_CONNECTION_Handle *sock = cls;
- GNUNET_CONNECTION_TransmitReadyNotify notify;
-
-#if DEBUG_NETWORK
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Transmit fails, time out reached.\n");
-#endif
- notify = sock->nth.notify_ready;
- sock->nth.notify_ready = NULL;
- notify (sock->nth.notify_ready_cls, 0, NULL);
-}
-
-
-static void
-transmit_error (struct GNUNET_CONNECTION_Handle *sock)
-{
- if (sock->nth.notify_ready == NULL)
- return; /* nobody to tell about it */
- if (sock->nth.timeout_task != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_cancel (sock->sched, sock->nth.timeout_task);
- sock->nth.timeout_task = GNUNET_SCHEDULER_NO_TASK;
- }
- transmit_timeout (sock, NULL);
-}
-
-
-/**
- * See if we are now connected. If not, wait longer for
- * connect to succeed. If connected, we should be able
- * to write now as well, unless we timed out.
- */
-static void
-transmit_ready (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct GNUNET_CONNECTION_Handle *sock = cls;
- ssize_t ret;
- size_t have;
-
- GNUNET_assert (sock->write_task != GNUNET_SCHEDULER_NO_TASK);
- sock->write_task = GNUNET_SCHEDULER_NO_TASK;
- if (sock->connect_task != GNUNET_SCHEDULER_NO_TASK)
- {
- /* still waiting for connect */
- GNUNET_assert (sock->write_task ==
- GNUNET_SCHEDULER_NO_TASK);
- sock->write_task =
- GNUNET_SCHEDULER_add_delayed (tc->sched, GNUNET_NO,
- GNUNET_SCHEDULER_PRIORITY_KEEP,
- sock->connect_task,
- GNUNET_TIME_UNIT_ZERO, &transmit_ready,
- sock);
- return;
- }
- if ( (sock->sock == NULL) ||
- ( (0 != (tc->reason & GNUNET_SCHEDULER_REASON_TIMEOUT)) &&
- (0 == (tc->reason & GNUNET_SCHEDULER_REASON_PREREQ_DONE)) &&
- (!GNUNET_NETWORK_fdset_isset (tc->write_ready, sock->sock))) )
- {
-#if DEBUG_NETWORK
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- _("Could not satisfy pending transmission request, socket closed or connect failed.\n"));
-#endif
- if (NULL != sock->sock)
- {
- GNUNET_NETWORK_socket_shutdown (sock->sock, SHUT_RDWR);
- GNUNET_break (0 == GNUNET_NETWORK_socket_close (sock->sock));
- sock->sock = NULL;
- }
- transmit_error (sock);
- return; /* connect failed for good, we're finished */
- }
- if ((tc->write_ready == NULL) || (!GNUNET_NETWORK_fdset_isset (tc->write_ready, sock->sock)))
- {
- /* special circumstances (in particular,
- PREREQ_DONE after connect): not yet ready to write,
- but no "fatal" error either. Hence retry. */
- goto SCHEDULE_WRITE;
- }
- GNUNET_assert (sock->write_buffer_off >= sock->write_buffer_pos);
- process_notify (sock);
- have = sock->write_buffer_off - sock->write_buffer_pos;
- if (have == 0)
- {
- /* no data ready for writing, terminate write loop */
- return;
- }
-RETRY:
- ret = GNUNET_NETWORK_socket_send (sock->sock,
- &sock->write_buffer[sock->write_buffer_pos],
- have,
-#ifndef MINGW
- // FIXME NILS
- MSG_DONTWAIT | MSG_NOSIGNAL
-#else
- 0
-#endif
- );
- if (ret == -1)
- {
- if (errno == EINTR)
- goto RETRY;
-#if DEBUG_NETWORK
- GNUNET_log_strerror (GNUNET_ERROR_TYPE_DEBUG, "send");
-#endif
- GNUNET_NETWORK_socket_shutdown (sock->sock, SHUT_RDWR);
- GNUNET_break (0 == GNUNET_NETWORK_socket_close (sock->sock));
- sock->sock = NULL;
- transmit_error (sock);
- return;
- }
-#if DEBUG_NETWORK
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "transmit_ready transmitted %u/%u bytes to `%s'\n",
- (unsigned int) ret,
- have,
- GNUNET_a2s(sock->addr, sock->addrlen));
-#endif
- sock->write_buffer_pos += ret;
- if (sock->write_buffer_pos == sock->write_buffer_off)
- {
- /* transmitted all pending data */
- sock->write_buffer_pos = 0;
- sock->write_buffer_off = 0;
- }
- if ((sock->write_buffer_off == 0) && (NULL == sock->nth.notify_ready))
- return; /* all data sent! */
- /* not done writing, schedule more */
-SCHEDULE_WRITE:
- if (sock->write_task == GNUNET_SCHEDULER_NO_TASK)
- sock->write_task =
- GNUNET_SCHEDULER_add_write_net (tc->sched,
- GNUNET_NO,
- GNUNET_SCHEDULER_PRIORITY_KEEP,
- GNUNET_SCHEDULER_NO_TASK,
- GNUNET_TIME_absolute_get_remaining (sock->nth.transmit_timeout),
- sock->sock, &transmit_ready, sock);
-}
-
-
-/**
- * Ask the socket to call us once the specified number of bytes
- * are free in the transmission buffer. May call the notify
- * method immediately if enough space is available.
- *
- * @param sock socket
- * @param size number of bytes to send
- * @param timeout after how long should we give up (and call
- * notify with buf NULL and size 0)?
- * @param notify function to call
- * @param notify_cls closure for notify
- * @return non-NULL if the notify callback was queued,
- * NULL if we are already going to notify someone else (busy)
- */
-struct GNUNET_CONNECTION_TransmitHandle *
-GNUNET_CONNECTION_notify_transmit_ready (struct GNUNET_CONNECTION_Handle
- *sock, size_t size,
- struct GNUNET_TIME_Relative timeout,
- GNUNET_CONNECTION_TransmitReadyNotify
- notify, void *notify_cls)
-{
- if (sock->nth.notify_ready != NULL)
- return NULL;
- GNUNET_assert (notify != NULL);
- GNUNET_assert (sock->write_buffer_size >= size);
-
- if ((sock->sock == NULL) &&
- (sock->connect_task == GNUNET_SCHEDULER_NO_TASK))
- {
-#if DEBUG_NETWORK
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Transmission request of size %u fails, connection failed.\n",
- size);
-#endif
- notify (notify_cls, 0, NULL);
- return &sock->nth;
- }
- GNUNET_assert (sock->write_buffer_off <= sock->write_buffer_size);
- GNUNET_assert (sock->write_buffer_pos <= sock->write_buffer_size);
- GNUNET_assert (sock->write_buffer_pos <= sock->write_buffer_off);
- sock->nth.notify_ready = notify;
- sock->nth.notify_ready_cls = notify_cls;
- sock->nth.sh = sock;
- sock->nth.notify_size = size;
- sock->nth.transmit_timeout = GNUNET_TIME_relative_to_absolute (timeout);
- sock->nth.timeout_task = GNUNET_SCHEDULER_add_delayed (sock->sched,
- GNUNET_NO,
- GNUNET_SCHEDULER_PRIORITY_KEEP,
- GNUNET_SCHEDULER_NO_TASK,
- timeout,
- &transmit_timeout,
- sock);
- if (sock->write_task == GNUNET_SCHEDULER_NO_TASK)
- {
- if (sock->connect_task == GNUNET_SCHEDULER_NO_TASK)
- sock->write_task = GNUNET_SCHEDULER_add_write_net (sock->sched,
- GNUNET_NO,
- GNUNET_SCHEDULER_PRIORITY_KEEP,
- GNUNET_SCHEDULER_NO_TASK,
- GNUNET_TIME_absolute_get_remaining (sock->nth.transmit_timeout),
- sock->sock,
- &transmit_ready, sock);
- else
- sock->write_task = GNUNET_SCHEDULER_add_delayed (sock->sched,
- GNUNET_NO,
- GNUNET_SCHEDULER_PRIORITY_KEEP,
- sock->connect_task,
- GNUNET_TIME_UNIT_ZERO,
- &transmit_ready, sock);
- }
- return &sock->nth;
-}
-
-
-/**
- * Cancel the specified transmission-ready
- * notification.
- */
-void
-GNUNET_CONNECTION_notify_transmit_ready_cancel (struct
- GNUNET_CONNECTION_TransmitHandle *h)
-{
- GNUNET_assert (h->notify_ready != NULL);
- GNUNET_SCHEDULER_cancel (h->sh->sched, h->timeout_task);
- h->timeout_task = GNUNET_SCHEDULER_NO_TASK;
- h->notify_ready = NULL;
-}
-
-
-#if 0 /* keep Emacsens' auto-indent happy */
-{
-#endif
-#ifdef __cplusplus
-}
-#endif
--- /dev/null
+/*
+ This file is part of GNUnet.
+ (C) 2009 Christian Grothoff (and other contributing authors)
+
+ GNUnet is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published
+ by the Free Software Foundation; either version 2, or (at your
+ option) any later version.
+
+ GNUnet is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with GNUnet; see the file COPYING. If not, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+*/
+/**
+ * @file util/test_connection.c
+ * @brief tests for connection.c
+ */
+#include "platform.h"
+#include "gnunet_common.h"
+#include "gnunet_connection_lib.h"
+#include "gnunet_scheduler_lib.h"
+#include "gnunet_time_lib.h"
+
+#define VERBOSE GNUNET_NO
+
+#define PORT 12435
+
+
+static struct GNUNET_CONNECTION_Handle *csock;
+
+static struct GNUNET_CONNECTION_Handle *asock;
+
+static struct GNUNET_CONNECTION_Handle *lsock;
+
+static size_t sofar;
+
+static int ls;
+
+
+
+/**
+ * Create and initialize a listen socket for the server.
+ *
+ * @return -1 on error, otherwise the listen socket
+ */
+static struct GNUNET_NETWORK_Descriptor *
+open_listen_socket ()
+{
+ const static int on = 1;
+ struct sockaddr_in sa;
+ struct GNUNET_NETWORK_Descriptor *desc;
+
+ memset (&sa, 0, sizeof (sa));
+ sa.sin_port = htons (PORT);
+ sa.sin_family = AF_INET;
+ desc = GNUNET_NETWORK_socket_socket (AF_INET, SOCK_STREAM, 0);
+ GNUNET_assert (desc != NULL);
+ if (GNUNET_NETWORK_socket_setsockopt (desc, SOL_SOCKET, SO_REUSEADDR, &on, sizeof (on)) < 0)
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
+ "setsockopt");
+ GNUNET_assert (GNUNET_NETWORK_socket_bind (desc, &sa, sizeof (sa)) >= 0);
+ GNUNET_NETWORK_socket_listen (desc, 5);
+ return desc;
+}
+
+static void
+receive_check (void *cls,
+ const void *buf,
+ size_t available,
+ const struct sockaddr *addr, socklen_t addrlen, int errCode)
+{
+ int *ok = cls;
+
+#if VERBOSE
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Receive validates incoming data\n");
+#endif
+ GNUNET_assert (buf != NULL); /* no timeout */
+ if (0 == memcmp (&"Hello World"[sofar], buf, available))
+ sofar += available;
+ if (sofar < 12)
+ {
+#if VERBOSE
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Receive needs more data\n");
+#endif
+ GNUNET_CONNECTION_receive (asock,
+ 1024,
+ GNUNET_TIME_relative_multiply
+ (GNUNET_TIME_UNIT_SECONDS, 5), &receive_check,
+ cls);
+ }
+ else
+ {
+#if VERBOSE
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Receive closes accepted socket\n");
+#endif
+ *ok = 0;
+ GNUNET_CONNECTION_destroy (asock);
+ }
+}
+
+
+static void
+run_accept (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+#if VERBOSE
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test accepts connection\n");
+#endif
+ asock = GNUNET_CONNECTION_create_from_accept (tc->sched,
+ NULL, NULL, ls, 1024);
+ GNUNET_assert (asock != NULL);
+ GNUNET_assert (GNUNET_YES == GNUNET_CONNECTION_check (asock));
+#if VERBOSE
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test destroys listen socket\n");
+#endif
+ GNUNET_CONNECTION_destroy (lsock);
+#if VERBOSE
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Test asks to receive on accepted socket\n");
+#endif
+ GNUNET_CONNECTION_receive (asock,
+ 1024,
+ GNUNET_TIME_relative_multiply
+ (GNUNET_TIME_UNIT_SECONDS, 5), &receive_check, cls);
+}
+
+static size_t
+make_hello (void *cls, size_t size, void *buf)
+{
+#if VERBOSE
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Test prepares to transmit on connect socket\n");
+#endif
+ GNUNET_assert (size >= 12);
+ strcpy ((char *) buf, "Hello World");
+ return 12;
+}
+
+static void
+task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ ls = open_listen_socket ();
+ lsock = GNUNET_CONNECTION_create_from_existing (tc->sched, ls, 0);
+ GNUNET_assert (lsock != NULL);
+ csock = GNUNET_CONNECTION_create_from_connect (tc->sched,
+ "localhost", PORT, 1024);
+ GNUNET_assert (csock != NULL);
+#if VERBOSE
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test asks for write notification\n");
+#endif
+ GNUNET_assert (NULL !=
+ GNUNET_CONNECTION_notify_transmit_ready (csock,
+ 12,
+ GNUNET_TIME_UNIT_SECONDS,
+ &make_hello, NULL));
+#if VERBOSE
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test destroys client socket\n");
+#endif
+ GNUNET_CONNECTION_destroy (csock);
+#if VERBOSE
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test prepares to accept\n");
+#endif
+ GNUNET_SCHEDULER_add_read_net (tc->sched,
+ GNUNET_NO,
+ GNUNET_SCHEDULER_PRIORITY_HIGH,
+ GNUNET_SCHEDULER_NO_TASK,
+ GNUNET_TIME_UNIT_FOREVER_REL,
+ ls, &run_accept, cls);
+}
+
+
+/**
+ * Main method, starts scheduler with task ,
+ * checks that "ok" is correct at the end.
+ */
+static int
+check ()
+{
+ int ok;
+
+ ok = 1;
+ GNUNET_SCHEDULER_run (&task, &ok);
+ return ok;
+}
+
+
+
+int
+main (int argc, char *argv[])
+{
+ int ret = 0;
+
+ GNUNET_log_setup ("test_connection",
+#if VERBOSE
+ "DEBUG",
+#else
+ "WARNING",
+#endif
+ NULL);
+ ret += check ();
+ return ret;
+}
+
+/* end of test_connection.c */
--- /dev/null
+/*
+ This file is part of GNUnet.
+ (C) 2009 Christian Grothoff (and other contributing authors)
+
+ GNUnet is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published
+ by the Free Software Foundation; either version 2, or (at your
+ option) any later version.
+
+ GNUnet is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with GNUnet; see the file COPYING. If not, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+*/
+/**
+ * @file util/test_connection_addressing.c
+ * @brief tests for connection.c
+ */
+#include "platform.h"
+#include "gnunet_common.h"
+#include "gnunet_connection_lib.h"
+#include "gnunet_scheduler_lib.h"
+#include "gnunet_time_lib.h"
+
+#define VERBOSE GNUNET_NO
+
+#define PORT 12435
+
+
+static struct GNUNET_CONNECTION_Handle *csock;
+
+static struct GNUNET_CONNECTION_Handle *asock;
+
+static struct GNUNET_CONNECTION_Handle *lsock;
+
+static size_t sofar;
+
+static struct GNUNET_NETWORK_Descriptor *ls;
+
+
+
+/**
+ * Create and initialize a listen socket for the server.
+ *
+ * @return NULL on error, otherwise the listen socket
+ */
+static struct GNUNET_NETWORK_Descriptor *
+open_listen_socket ()
+{
+ const static int on = 1;
+ struct sockaddr_in sa;
+ struct GNUNET_NETWORK_Descriptor *desc;
+
+ memset (&sa, 0, sizeof (sa));
+ sa.sin_port = htons (PORT);
+ desc = GNUNET_NETWORK_socket_socket (AF_INET, SOCK_STREAM, 0);
+ GNUNET_assert (desc != 0);
+ if (GNUNET_NETWORK_socket_setsockopt (desc, SOL_SOCKET, SO_REUSEADDR, &on, sizeof (on)) < 0)
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
+ "setsockopt");
+ GNUNET_assert (GNUNET_NETWORK_socket_bind (desc, &sa, sizeof (sa)) >= 0);
+ GNUNET_NETWORK_socket_listen (desc, 5);
+ return desc;
+}
+
+
+static void
+receive_check (void *cls,
+ const void *buf,
+ size_t available,
+ const struct sockaddr *addr, socklen_t addrlen, int errCode)
+{
+ int *ok = cls;
+
+ GNUNET_assert (buf != NULL); /* no timeout */
+ if (0 == memcmp (&"Hello World"[sofar], buf, available))
+ sofar += available;
+ if (sofar < 12)
+ {
+ GNUNET_CONNECTION_receive (asock,
+ 1024,
+ GNUNET_TIME_relative_multiply
+ (GNUNET_TIME_UNIT_SECONDS, 5), &receive_check,
+ cls);
+ }
+ else
+ {
+ *ok = 0;
+ GNUNET_CONNECTION_destroy (asock);
+ }
+}
+
+
+static void
+run_accept (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ void *addr;
+ size_t alen;
+ struct sockaddr_in *v4;
+ struct sockaddr_in expect;
+
+ asock = GNUNET_CONNECTION_create_from_accept (tc->sched,
+ NULL, NULL, ls, 1024);
+ GNUNET_assert (asock != NULL);
+ GNUNET_assert (GNUNET_YES == GNUNET_CONNECTION_check (asock));
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CONNECTION_get_address (asock, &addr, &alen));
+ GNUNET_assert (alen == sizeof (struct sockaddr_in));
+ v4 = addr;
+ memset (&expect, 0, sizeof (expect));
+ expect.sin_family = AF_INET;
+ expect.sin_port = v4->sin_port;
+ expect.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
+ GNUNET_assert (0 == memcmp (&expect, v4, alen));
+ GNUNET_free (addr);
+ GNUNET_CONNECTION_destroy (lsock);
+ GNUNET_CONNECTION_receive (asock,
+ 1024,
+ GNUNET_TIME_relative_multiply
+ (GNUNET_TIME_UNIT_SECONDS, 5), &receive_check, cls);
+}
+
+static size_t
+make_hello (void *cls, size_t size, void *buf)
+{
+ GNUNET_assert (size >= 12);
+ strcpy ((char *) buf, "Hello World");
+ return 12;
+}
+
+static void
+task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct sockaddr_in v4;
+ ls = open_listen_socket ();
+ lsock = GNUNET_CONNECTION_create_from_existing (tc->sched, ls, 0);
+ GNUNET_assert (lsock != NULL);
+
+ v4.sin_family = AF_INET;
+ v4.sin_port = htons (PORT);
+ v4.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
+ csock = GNUNET_CONNECTION_create_from_sockaddr (tc->sched,
+ AF_INET,
+ (const struct sockaddr
+ *) &v4, sizeof (v4),
+ 1024);
+ GNUNET_assert (csock != NULL);
+ GNUNET_assert (NULL !=
+ GNUNET_CONNECTION_notify_transmit_ready (csock,
+ 12,
+ GNUNET_TIME_UNIT_SECONDS,
+ &make_hello, NULL));
+ GNUNET_CONNECTION_destroy (csock);
+ GNUNET_SCHEDULER_add_read_net (tc->sched,
+ GNUNET_NO,
+ GNUNET_SCHEDULER_PRIORITY_HIGH,
+ GNUNET_SCHEDULER_NO_TASK,
+ GNUNET_TIME_UNIT_FOREVER_REL,
+ ls, &run_accept, cls);
+}
+
+
+/**
+ * Main method, starts scheduler with task ,
+ * checks that "ok" is correct at the end.
+ */
+static int
+check ()
+{
+ int ok;
+
+ ok = 1;
+ GNUNET_SCHEDULER_run (&task, &ok);
+ return ok;
+}
+
+
+
+int
+main (int argc, char *argv[])
+{
+ int ret = 0;
+
+ GNUNET_log_setup ("test_connection_addressing",
+#if VERBOSE
+ "DEBUG",
+#else
+ "WARNING",
+#endif
+ NULL);
+ ret += check ();
+ return ret;
+}
+
+/* end of test_connection_addressing.c */
--- /dev/null
+/*
+ This file is part of GNUnet.
+ (C) 2009 Christian Grothoff (and other contributing authors)
+
+ GNUnet is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published
+ by the Free Software Foundation; either version 2, or (at your
+ option) any later version.
+
+ GNUnet is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with GNUnet; see the file COPYING. If not, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+*/
+/**
+ * @file util/test_connection_receive_cancel.c
+ * @brief tests for connection.c
+ */
+#include "platform.h"
+#include "gnunet_common.h"
+#include "gnunet_connection_lib.h"
+#include "gnunet_scheduler_lib.h"
+#include "gnunet_time_lib.h"
+
+#define VERBOSE GNUNET_NO
+
+#define PORT 12435
+
+
+static struct GNUNET_CONNECTION_Handle *csock;
+
+static struct GNUNET_CONNECTION_Handle *asock;
+
+static struct GNUNET_CONNECTION_Handle *lsock;
+
+static struct GNUNET_NETWORK_Descriptor *ls;
+
+static GNUNET_SCHEDULER_TaskIdentifier receive_task;
+
+
+
+
+/**
+ * Create and initialize a listen socket for the server.
+ *
+ * @return NULL on error, otherwise the listen socket
+ */
+static struct GNUNET_NETWORK_Descriptor *
+open_listen_socket ()
+{
+ const static int on = 1;
+ struct sockaddr_in sa;
+ struct GNUNET_NETWORK_Descriptor *desc;
+
+ memset (&sa, 0, sizeof (sa));
+ sa.sin_port = htons (PORT);
+ desc = GNUNET_NETWORK_socket_socket (AF_INET, SOCK_STREAM, 0);
+ GNUNET_assert (desc != NULL);
+ if (GNUNET_NETWORK_socket_setsockopt (desc, SOL_SOCKET, SO_REUSEADDR, &on, sizeof (on)) < 0)
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
+ "setsockopt");
+ GNUNET_assert (GNUNET_NETWORK_socket_bind (desc, &sa, sizeof (sa)) >= 0);
+ GNUNET_NETWORK_socket_listen (desc, 5);
+ return desc;
+}
+
+
+
+static void
+dead_receive (void *cls,
+ const void *buf,
+ size_t available,
+ const struct sockaddr *addr, socklen_t addrlen, int errCode)
+{
+ GNUNET_assert (0);
+}
+
+
+static void
+run_accept_cancel (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+
+ asock = GNUNET_CONNECTION_create_from_accept (tc->sched,
+ NULL, NULL, ls, 1024);
+ GNUNET_assert (asock != NULL);
+ GNUNET_assert (GNUNET_YES == GNUNET_CONNECTION_check (asock));
+ GNUNET_CONNECTION_destroy (lsock);
+ receive_task
+ = GNUNET_CONNECTION_receive (asock,
+ 1024,
+ GNUNET_TIME_relative_multiply
+ (GNUNET_TIME_UNIT_SECONDS, 5), &dead_receive,
+ cls);
+}
+
+
+static void
+receive_cancel_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ int *ok = cls;
+ GNUNET_CONNECTION_receive_cancel (asock, receive_task);
+ GNUNET_CONNECTION_destroy (csock);
+ GNUNET_CONNECTION_destroy (asock);
+ *ok = 0;
+}
+
+
+
+static void
+task_receive_cancel (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ ls = open_listen_socket ();
+ lsock = GNUNET_CONNECTION_create_from_existing (tc->sched, ls, 0);
+ GNUNET_assert (lsock != NULL);
+ csock = GNUNET_CONNECTION_create_from_connect (tc->sched,
+ "localhost", PORT, 1024);
+ GNUNET_assert (csock != NULL);
+ GNUNET_SCHEDULER_add_read_net (tc->sched,
+ GNUNET_NO,
+ GNUNET_SCHEDULER_PRIORITY_HIGH,
+ GNUNET_SCHEDULER_NO_TASK,
+ GNUNET_TIME_UNIT_FOREVER_REL,
+ ls, &run_accept_cancel, cls);
+ GNUNET_SCHEDULER_add_delayed (tc->sched,
+ GNUNET_NO,
+ GNUNET_SCHEDULER_PRIORITY_KEEP,
+ GNUNET_SCHEDULER_NO_TASK,
+ GNUNET_TIME_UNIT_SECONDS,
+ &receive_cancel_task, cls);
+}
+
+
+
+/**
+ * Main method, starts scheduler with task_timeout.
+ */
+static int
+check_receive_cancel ()
+{
+ int ok;
+
+ ok = 1;
+ GNUNET_SCHEDULER_run (&task_receive_cancel, &ok);
+ return ok;
+}
+
+
+int
+main (int argc, char *argv[])
+{
+ int ret = 0;
+
+ GNUNET_log_setup ("test_connection_receive_cancel", "WARNING", NULL);
+ ret += check_receive_cancel ();
+
+ return ret;
+}
+
+/* end of test_connection_receive_cancel.c */
--- /dev/null
+/*
+ This file is part of GNUnet.
+ (C) 2009 Christian Grothoff (and other contributing authors)
+
+ GNUnet is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published
+ by the Free Software Foundation; either version 2, or (at your
+ option) any later version.
+
+ GNUnet is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with GNUnet; see the file COPYING. If not, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+*/
+/**
+ * @file util/test_connection_timeout.c
+ * @brief tests for connection.c
+ */
+#include "platform.h"
+#include "gnunet_common.h"
+#include "gnunet_connection_lib.h"
+#include "gnunet_scheduler_lib.h"
+#include "gnunet_time_lib.h"
+
+#define VERBOSE GNUNET_NO
+
+#define PORT 12435
+
+static struct GNUNET_CONNECTION_Handle *csock;
+
+static struct GNUNET_CONNECTION_Handle *lsock;
+
+static struct GNUNET_NETWORK_Descriptor *ls;
+
+
+/**
+ * Create and initialize a listen socket for the server.
+ *
+ * @return NULL on error, otherwise the listen socket
+ */
+static struct GNUNET_NETWORK_Descriptor *
+open_listen_socket ()
+{
+ const static int on = 1;
+ struct sockaddr_in sa;
+ struct GNUNET_NETWORK_Descriptor *desc;
+
+ memset (&sa, 0, sizeof (sa));
+ sa.sin_port = htons (PORT);
+ desc = GNUNET_NETWORK_socket_socket (AF_INET, SOCK_STREAM, 0);
+ GNUNET_assert (desc != NULL);
+ if (GNUNET_NETWORK_socket_setsockopt (desc, SOL_SOCKET, SO_REUSEADDR, &on, sizeof (on)) < 0)
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
+ "setsockopt");
+ GNUNET_assert (GNUNET_NETWORK_socket_bind (desc, &sa, sizeof (sa)) >= 0);
+ GNUNET_NETWORK_socket_listen (desc, 5);
+ return desc;
+}
+
+
+static size_t
+send_kilo (void *cls, size_t size, void *buf)
+{
+ int *ok = cls;
+ if (size == 0)
+ {
+#if VERBOSE
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Got the desired timeout!\n");
+#endif
+ GNUNET_assert (buf == NULL);
+ *ok = 0;
+ GNUNET_CONNECTION_destroy (lsock);
+ GNUNET_CONNECTION_destroy (csock);
+ return 0;
+ }
+#if VERBOSE
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending kilo to fill buffer.\n");
+#endif
+ GNUNET_assert (size >= 1024);
+ memset (buf, 42, 1024);
+
+ GNUNET_assert (NULL !=
+ GNUNET_CONNECTION_notify_transmit_ready (csock,
+ 1024,
+ GNUNET_TIME_UNIT_SECONDS,
+ &send_kilo, cls));
+ return 1024;
+}
+
+
+static void
+task_timeout (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+
+ ls = open_listen_socket ();
+ lsock = GNUNET_CONNECTION_create_from_existing (tc->sched, ls, 0);
+ GNUNET_assert (lsock != NULL);
+ csock = GNUNET_CONNECTION_create_from_connect (tc->sched,
+ "localhost", PORT, 1024);
+ GNUNET_assert (csock != NULL);
+ GNUNET_assert (NULL !=
+ GNUNET_CONNECTION_notify_transmit_ready (csock,
+ 1024,
+ GNUNET_TIME_UNIT_SECONDS,
+ &send_kilo, cls));
+}
+
+
+
+/**
+ * Main method, starts scheduler with task_timeout.
+ */
+static int
+check_timeout ()
+{
+ int ok;
+
+ ok = 1;
+ GNUNET_SCHEDULER_run (&task_timeout, &ok);
+ return ok;
+}
+
+int
+main (int argc, char *argv[])
+{
+ int ret = 0;
+
+ GNUNET_log_setup ("test_connection_timeout",
+#if VERBOSE
+ "DEBUG",
+#else
+ "WARNING",
+#endif
+ NULL);
+ ret += check_timeout ();
+ return ret;
+}
+
+/* end of test_connection_timeout.c */
--- /dev/null
+/*
+ This file is part of GNUnet.
+ (C) 2009 Christian Grothoff (and other contributing authors)
+
+ GNUnet is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published
+ by the Free Software Foundation; either version 2, or (at your
+ option) any later version.
+
+ GNUnet is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with GNUnet; see the file COPYING. If not, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+*/
+/**
+ * @file util/test_connection_timeout_no_connect.c
+ * @brief tests for connection.c, doing timeout which connect failure
+ */
+#include "platform.h"
+#include "gnunet_common.h"
+#include "gnunet_connection_lib.h"
+#include "gnunet_scheduler_lib.h"
+#include "gnunet_time_lib.h"
+
+#define VERBOSE GNUNET_NO
+
+#define PORT 13425
+
+static struct GNUNET_CONNECTION_Handle *csock;
+
+static size_t
+handle_timeout (void *cls, size_t size, void *buf)
+{
+ int *ok = cls;
+#if VERBOSE
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received timeout signal.\n");
+#endif
+
+ GNUNET_assert (size == 0);
+ GNUNET_assert (buf == NULL);
+ *ok = 0;
+ return 0;
+}
+
+
+static void
+task_timeout (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ csock = GNUNET_CONNECTION_create_from_connect (tc->sched,
+ "localhost", PORT, 1024);
+ GNUNET_assert (csock != NULL);
+ GNUNET_assert (NULL !=
+ GNUNET_CONNECTION_notify_transmit_ready (csock,
+ 1024,
+ GNUNET_TIME_UNIT_SECONDS,
+ &handle_timeout, cls));
+}
+
+
+
+/**
+ * Main method, starts scheduler with task_timeout.
+ */
+static int
+check_timeout ()
+{
+ int ok;
+
+ ok = 1;
+ GNUNET_SCHEDULER_run (&task_timeout, &ok);
+ return ok;
+}
+
+int
+main (int argc, char *argv[])
+{
+ int ret = 0;
+
+ GNUNET_log_setup ("test_connection_timeout_no_connect",
+#if VERBOSE
+ "DEBUG",
+#else
+ "WARNING",
+#endif
+ NULL);
+ ret += check_timeout ();
+ return ret;
+}
+
+/* end of test_connection_timeout_no_connect.c */
--- /dev/null
+/*
+ This file is part of GNUnet.
+ (C) 2009 Christian Grothoff (and other contributing authors)
+
+ GNUnet is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published
+ by the Free Software Foundation; either version 2, or (at your
+ option) any later version.
+
+ GNUnet is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with GNUnet; see the file COPYING. If not, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+*/
+/**
+ * @file util/test_connection_transmit_cancel.c
+ * @brief tests for connection.c
+ */
+#include "platform.h"
+#include "gnunet_common.h"
+#include "gnunet_connection_lib.h"
+#include "gnunet_scheduler_lib.h"
+#include "gnunet_time_lib.h"
+
+#define VERBOSE GNUNET_NO
+
+#define PORT 12435
+
+
+static size_t
+not_run (void *cls, size_t size, void *buf)
+{
+ GNUNET_assert (0);
+ return 0;
+}
+
+
+static void
+task_transmit_cancel (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ int *ok = cls;
+ struct GNUNET_CONNECTION_TransmitHandle *th;
+ struct GNUNET_CONNECTION_Handle *csock;
+
+ csock = GNUNET_CONNECTION_create_from_connect (tc->sched,
+ "localhost", PORT, 1024);
+ GNUNET_assert (csock != NULL);
+ th = GNUNET_CONNECTION_notify_transmit_ready (csock,
+ 12,
+ GNUNET_TIME_UNIT_MINUTES,
+ ¬_run, cls);
+ GNUNET_CONNECTION_notify_transmit_ready_cancel (th);
+ GNUNET_CONNECTION_destroy (csock);
+ *ok = 0;
+}
+
+
+
+
+/**
+ * Main method, starts scheduler with task_timeout.
+ */
+static int
+check_transmit_cancel ()
+{
+ int ok;
+
+ ok = 1;
+ GNUNET_SCHEDULER_run (&task_transmit_cancel, &ok);
+ return ok;
+}
+
+
+int
+main (int argc, char *argv[])
+{
+ int ret = 0;
+
+ GNUNET_log_setup ("test_connection_transmit_cancel",
+#if VERBOSE
+ "DEBUG",
+#else
+ "WARNING",
+#endif
+ NULL);
+ ret += check_transmit_cancel ();
+
+ return ret;
+}
+
+/* end of test_connection_transmit_cancel.c */
+++ /dev/null
-/*
- This file is part of GNUnet.
- (C) 2009 Christian Grothoff (and other contributing authors)
-
- GNUnet is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 2, or (at your
- option) any later version.
-
- GNUnet is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
-*/
-/**
- * @file util/test_network.c
- * @brief tests for network.c
- */
-#include "platform.h"
-#include "gnunet_common.h"
-#include "gnunet_connection_lib.h"
-#include "gnunet_scheduler_lib.h"
-#include "gnunet_time_lib.h"
-
-#define VERBOSE GNUNET_NO
-
-#define PORT 12435
-
-
-static struct GNUNET_CONNECTION_Handle *csock;
-
-static struct GNUNET_CONNECTION_Handle *asock;
-
-static struct GNUNET_CONNECTION_Handle *lsock;
-
-static size_t sofar;
-
-static int ls;
-
-
-
-/**
- * Create and initialize a listen socket for the server.
- *
- * @return -1 on error, otherwise the listen socket
- */
-static struct GNUNET_NETWORK_Descriptor *
-open_listen_socket ()
-{
- const static int on = 1;
- struct sockaddr_in sa;
- struct GNUNET_NETWORK_Descriptor *desc;
-
- memset (&sa, 0, sizeof (sa));
- sa.sin_port = htons (PORT);
- sa.sin_family = AF_INET;
- desc = GNUNET_NETWORK_socket_socket (AF_INET, SOCK_STREAM, 0);
- GNUNET_assert (desc != NULL);
- if (GNUNET_NETWORK_socket_setsockopt (desc, SOL_SOCKET, SO_REUSEADDR, &on, sizeof (on)) < 0)
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
- "setsockopt");
- GNUNET_assert (GNUNET_NETWORK_socket_bind (desc, &sa, sizeof (sa)) >= 0);
- GNUNET_NETWORK_socket_listen (desc, 5);
- return desc;
-}
-
-static void
-receive_check (void *cls,
- const void *buf,
- size_t available,
- const struct sockaddr *addr, socklen_t addrlen, int errCode)
-{
- int *ok = cls;
-
-#if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Receive validates incoming data\n");
-#endif
- GNUNET_assert (buf != NULL); /* no timeout */
- if (0 == memcmp (&"Hello World"[sofar], buf, available))
- sofar += available;
- if (sofar < 12)
- {
-#if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Receive needs more data\n");
-#endif
- GNUNET_CONNECTION_receive (asock,
- 1024,
- GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_SECONDS, 5), &receive_check,
- cls);
- }
- else
- {
-#if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Receive closes accepted socket\n");
-#endif
- *ok = 0;
- GNUNET_CONNECTION_destroy (asock);
- }
-}
-
-
-static void
-run_accept (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
-#if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test accepts connection\n");
-#endif
- asock = GNUNET_CONNECTION_create_from_accept (tc->sched,
- NULL, NULL, ls, 1024);
- GNUNET_assert (asock != NULL);
- GNUNET_assert (GNUNET_YES == GNUNET_CONNECTION_check (asock));
-#if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test destroys listen socket\n");
-#endif
- GNUNET_CONNECTION_destroy (lsock);
-#if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Test asks to receive on accepted socket\n");
-#endif
- GNUNET_CONNECTION_receive (asock,
- 1024,
- GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_SECONDS, 5), &receive_check, cls);
-}
-
-static size_t
-make_hello (void *cls, size_t size, void *buf)
-{
-#if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Test prepares to transmit on connect socket\n");
-#endif
- GNUNET_assert (size >= 12);
- strcpy ((char *) buf, "Hello World");
- return 12;
-}
-
-static void
-task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- ls = open_listen_socket ();
- lsock = GNUNET_CONNECTION_create_from_existing (tc->sched, ls, 0);
- GNUNET_assert (lsock != NULL);
- csock = GNUNET_CONNECTION_create_from_connect (tc->sched,
- "localhost", PORT, 1024);
- GNUNET_assert (csock != NULL);
-#if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test asks for write notification\n");
-#endif
- GNUNET_assert (NULL !=
- GNUNET_CONNECTION_notify_transmit_ready (csock,
- 12,
- GNUNET_TIME_UNIT_SECONDS,
- &make_hello, NULL));
-#if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test destroys client socket\n");
-#endif
- GNUNET_CONNECTION_destroy (csock);
-#if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test prepares to accept\n");
-#endif
- GNUNET_SCHEDULER_add_read_net (tc->sched,
- GNUNET_NO,
- GNUNET_SCHEDULER_PRIORITY_HIGH,
- GNUNET_SCHEDULER_NO_TASK,
- GNUNET_TIME_UNIT_FOREVER_REL,
- ls, &run_accept, cls);
-}
-
-
-/**
- * Main method, starts scheduler with task ,
- * checks that "ok" is correct at the end.
- */
-static int
-check ()
-{
- int ok;
-
- ok = 1;
- GNUNET_SCHEDULER_run (&task, &ok);
- return ok;
-}
-
-
-
-int
-main (int argc, char *argv[])
-{
- int ret = 0;
-
- GNUNET_log_setup ("test_network",
-#if VERBOSE
- "DEBUG",
-#else
- "WARNING",
-#endif
- NULL);
- ret += check ();
- return ret;
-}
-
-/* end of test_network.c */
+++ /dev/null
-/*
- This file is part of GNUnet.
- (C) 2009 Christian Grothoff (and other contributing authors)
-
- GNUnet is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 2, or (at your
- option) any later version.
-
- GNUnet is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
-*/
-/**
- * @file util/test_network_addressing.c
- * @brief tests for network.c
- */
-#include "platform.h"
-#include "gnunet_common.h"
-#include "gnunet_connection_lib.h"
-#include "gnunet_scheduler_lib.h"
-#include "gnunet_time_lib.h"
-
-#define VERBOSE GNUNET_NO
-
-#define PORT 12435
-
-
-static struct GNUNET_CONNECTION_Handle *csock;
-
-static struct GNUNET_CONNECTION_Handle *asock;
-
-static struct GNUNET_CONNECTION_Handle *lsock;
-
-static size_t sofar;
-
-static struct GNUNET_NETWORK_Descriptor *ls;
-
-
-
-/**
- * Create and initialize a listen socket for the server.
- *
- * @return NULL on error, otherwise the listen socket
- */
-static struct GNUNET_NETWORK_Descriptor *
-open_listen_socket ()
-{
- const static int on = 1;
- struct sockaddr_in sa;
- struct GNUNET_NETWORK_Descriptor *desc;
-
- memset (&sa, 0, sizeof (sa));
- sa.sin_port = htons (PORT);
- desc = GNUNET_NETWORK_socket_socket (AF_INET, SOCK_STREAM, 0);
- GNUNET_assert (desc != 0);
- if (GNUNET_NETWORK_socket_setsockopt (desc, SOL_SOCKET, SO_REUSEADDR, &on, sizeof (on)) < 0)
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
- "setsockopt");
- GNUNET_assert (GNUNET_NETWORK_socket_bind (desc, &sa, sizeof (sa)) >= 0);
- GNUNET_NETWORK_socket_listen (desc, 5);
- return desc;
-}
-
-
-static void
-receive_check (void *cls,
- const void *buf,
- size_t available,
- const struct sockaddr *addr, socklen_t addrlen, int errCode)
-{
- int *ok = cls;
-
- GNUNET_assert (buf != NULL); /* no timeout */
- if (0 == memcmp (&"Hello World"[sofar], buf, available))
- sofar += available;
- if (sofar < 12)
- {
- GNUNET_CONNECTION_receive (asock,
- 1024,
- GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_SECONDS, 5), &receive_check,
- cls);
- }
- else
- {
- *ok = 0;
- GNUNET_CONNECTION_destroy (asock);
- }
-}
-
-
-static void
-run_accept (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- void *addr;
- size_t alen;
- struct sockaddr_in *v4;
- struct sockaddr_in expect;
-
- asock = GNUNET_CONNECTION_create_from_accept (tc->sched,
- NULL, NULL, ls, 1024);
- GNUNET_assert (asock != NULL);
- GNUNET_assert (GNUNET_YES == GNUNET_CONNECTION_check (asock));
- GNUNET_assert (GNUNET_OK ==
- GNUNET_CONNECTION_get_address (asock, &addr, &alen));
- GNUNET_assert (alen == sizeof (struct sockaddr_in));
- v4 = addr;
- memset (&expect, 0, sizeof (expect));
- expect.sin_family = AF_INET;
- expect.sin_port = v4->sin_port;
- expect.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
- GNUNET_assert (0 == memcmp (&expect, v4, alen));
- GNUNET_free (addr);
- GNUNET_CONNECTION_destroy (lsock);
- GNUNET_CONNECTION_receive (asock,
- 1024,
- GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_SECONDS, 5), &receive_check, cls);
-}
-
-static size_t
-make_hello (void *cls, size_t size, void *buf)
-{
- GNUNET_assert (size >= 12);
- strcpy ((char *) buf, "Hello World");
- return 12;
-}
-
-static void
-task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct sockaddr_in v4;
- ls = open_listen_socket ();
- lsock = GNUNET_CONNECTION_create_from_existing (tc->sched, ls, 0);
- GNUNET_assert (lsock != NULL);
-
- v4.sin_family = AF_INET;
- v4.sin_port = htons (PORT);
- v4.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
- csock = GNUNET_CONNECTION_create_from_sockaddr (tc->sched,
- AF_INET,
- (const struct sockaddr
- *) &v4, sizeof (v4),
- 1024);
- GNUNET_assert (csock != NULL);
- GNUNET_assert (NULL !=
- GNUNET_CONNECTION_notify_transmit_ready (csock,
- 12,
- GNUNET_TIME_UNIT_SECONDS,
- &make_hello, NULL));
- GNUNET_CONNECTION_destroy (csock);
- GNUNET_SCHEDULER_add_read_net (tc->sched,
- GNUNET_NO,
- GNUNET_SCHEDULER_PRIORITY_HIGH,
- GNUNET_SCHEDULER_NO_TASK,
- GNUNET_TIME_UNIT_FOREVER_REL,
- ls, &run_accept, cls);
-}
-
-
-/**
- * Main method, starts scheduler with task ,
- * checks that "ok" is correct at the end.
- */
-static int
-check ()
-{
- int ok;
-
- ok = 1;
- GNUNET_SCHEDULER_run (&task, &ok);
- return ok;
-}
-
-
-
-int
-main (int argc, char *argv[])
-{
- int ret = 0;
-
- GNUNET_log_setup ("test_network_addressing",
-#if VERBOSE
- "DEBUG",
-#else
- "WARNING",
-#endif
- NULL);
- ret += check ();
- return ret;
-}
-
-/* end of test_network_addressing.c */
+++ /dev/null
-/*
- This file is part of GNUnet.
- (C) 2009 Christian Grothoff (and other contributing authors)
-
- GNUnet is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 2, or (at your
- option) any later version.
-
- GNUnet is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
-*/
-/**
- * @file util/test_network_receive_cancel.c
- * @brief tests for network.c
- */
-#include "platform.h"
-#include "gnunet_common.h"
-#include "gnunet_connection_lib.h"
-#include "gnunet_scheduler_lib.h"
-#include "gnunet_time_lib.h"
-
-#define VERBOSE GNUNET_NO
-
-#define PORT 12435
-
-
-static struct GNUNET_CONNECTION_Handle *csock;
-
-static struct GNUNET_CONNECTION_Handle *asock;
-
-static struct GNUNET_CONNECTION_Handle *lsock;
-
-static struct GNUNET_NETWORK_Descriptor *ls;
-
-static GNUNET_SCHEDULER_TaskIdentifier receive_task;
-
-
-
-
-/**
- * Create and initialize a listen socket for the server.
- *
- * @return NULL on error, otherwise the listen socket
- */
-static struct GNUNET_NETWORK_Descriptor *
-open_listen_socket ()
-{
- const static int on = 1;
- struct sockaddr_in sa;
- struct GNUNET_NETWORK_Descriptor *desc;
-
- memset (&sa, 0, sizeof (sa));
- sa.sin_port = htons (PORT);
- desc = GNUNET_NETWORK_socket_socket (AF_INET, SOCK_STREAM, 0);
- GNUNET_assert (desc != NULL);
- if (GNUNET_NETWORK_socket_setsockopt (desc, SOL_SOCKET, SO_REUSEADDR, &on, sizeof (on)) < 0)
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
- "setsockopt");
- GNUNET_assert (GNUNET_NETWORK_socket_bind (desc, &sa, sizeof (sa)) >= 0);
- GNUNET_NETWORK_socket_listen (desc, 5);
- return desc;
-}
-
-
-
-static void
-dead_receive (void *cls,
- const void *buf,
- size_t available,
- const struct sockaddr *addr, socklen_t addrlen, int errCode)
-{
- GNUNET_assert (0);
-}
-
-
-static void
-run_accept_cancel (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
-
- asock = GNUNET_CONNECTION_create_from_accept (tc->sched,
- NULL, NULL, ls, 1024);
- GNUNET_assert (asock != NULL);
- GNUNET_assert (GNUNET_YES == GNUNET_CONNECTION_check (asock));
- GNUNET_CONNECTION_destroy (lsock);
- receive_task
- = GNUNET_CONNECTION_receive (asock,
- 1024,
- GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_SECONDS, 5), &dead_receive,
- cls);
-}
-
-
-static void
-receive_cancel_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- int *ok = cls;
- GNUNET_CONNECTION_receive_cancel (asock, receive_task);
- GNUNET_CONNECTION_destroy (csock);
- GNUNET_CONNECTION_destroy (asock);
- *ok = 0;
-}
-
-
-
-static void
-task_receive_cancel (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- ls = open_listen_socket ();
- lsock = GNUNET_CONNECTION_create_from_existing (tc->sched, ls, 0);
- GNUNET_assert (lsock != NULL);
- csock = GNUNET_CONNECTION_create_from_connect (tc->sched,
- "localhost", PORT, 1024);
- GNUNET_assert (csock != NULL);
- GNUNET_SCHEDULER_add_read_net (tc->sched,
- GNUNET_NO,
- GNUNET_SCHEDULER_PRIORITY_HIGH,
- GNUNET_SCHEDULER_NO_TASK,
- GNUNET_TIME_UNIT_FOREVER_REL,
- ls, &run_accept_cancel, cls);
- GNUNET_SCHEDULER_add_delayed (tc->sched,
- GNUNET_NO,
- GNUNET_SCHEDULER_PRIORITY_KEEP,
- GNUNET_SCHEDULER_NO_TASK,
- GNUNET_TIME_UNIT_SECONDS,
- &receive_cancel_task, cls);
-}
-
-
-
-/**
- * Main method, starts scheduler with task_timeout.
- */
-static int
-check_receive_cancel ()
-{
- int ok;
-
- ok = 1;
- GNUNET_SCHEDULER_run (&task_receive_cancel, &ok);
- return ok;
-}
-
-
-int
-main (int argc, char *argv[])
-{
- int ret = 0;
-
- GNUNET_log_setup ("test_network_receive_cancel", "WARNING", NULL);
- ret += check_receive_cancel ();
-
- return ret;
-}
-
-/* end of test_network.c */
+++ /dev/null
-/*
- This file is part of GNUnet.
- (C) 2009 Christian Grothoff (and other contributing authors)
-
- GNUnet is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 2, or (at your
- option) any later version.
-
- GNUnet is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
-*/
-/**
- * @file util/test_network_timeout.c
- * @brief tests for network.c
- */
-#include "platform.h"
-#include "gnunet_common.h"
-#include "gnunet_connection_lib.h"
-#include "gnunet_scheduler_lib.h"
-#include "gnunet_time_lib.h"
-
-#define VERBOSE GNUNET_NO
-
-#define PORT 12435
-
-static struct GNUNET_CONNECTION_Handle *csock;
-
-static struct GNUNET_CONNECTION_Handle *lsock;
-
-static struct GNUNET_NETWORK_Descriptor *ls;
-
-
-/**
- * Create and initialize a listen socket for the server.
- *
- * @return NULL on error, otherwise the listen socket
- */
-static struct GNUNET_NETWORK_Descriptor *
-open_listen_socket ()
-{
- const static int on = 1;
- struct sockaddr_in sa;
- struct GNUNET_NETWORK_Descriptor *desc;
-
- memset (&sa, 0, sizeof (sa));
- sa.sin_port = htons (PORT);
- desc = GNUNET_NETWORK_socket_socket (AF_INET, SOCK_STREAM, 0);
- GNUNET_assert (desc != NULL);
- if (GNUNET_NETWORK_socket_setsockopt (desc, SOL_SOCKET, SO_REUSEADDR, &on, sizeof (on)) < 0)
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
- "setsockopt");
- GNUNET_assert (GNUNET_NETWORK_socket_bind (desc, &sa, sizeof (sa)) >= 0);
- GNUNET_NETWORK_socket_listen (desc, 5);
- return desc;
-}
-
-
-static size_t
-send_kilo (void *cls, size_t size, void *buf)
-{
- int *ok = cls;
- if (size == 0)
- {
-#if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Got the desired timeout!\n");
-#endif
- GNUNET_assert (buf == NULL);
- *ok = 0;
- GNUNET_CONNECTION_destroy (lsock);
- GNUNET_CONNECTION_destroy (csock);
- return 0;
- }
-#if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending kilo to fill buffer.\n");
-#endif
- GNUNET_assert (size >= 1024);
- memset (buf, 42, 1024);
-
- GNUNET_assert (NULL !=
- GNUNET_CONNECTION_notify_transmit_ready (csock,
- 1024,
- GNUNET_TIME_UNIT_SECONDS,
- &send_kilo, cls));
- return 1024;
-}
-
-
-static void
-task_timeout (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
-
- ls = open_listen_socket ();
- lsock = GNUNET_CONNECTION_create_from_existing (tc->sched, ls, 0);
- GNUNET_assert (lsock != NULL);
- csock = GNUNET_CONNECTION_create_from_connect (tc->sched,
- "localhost", PORT, 1024);
- GNUNET_assert (csock != NULL);
- GNUNET_assert (NULL !=
- GNUNET_CONNECTION_notify_transmit_ready (csock,
- 1024,
- GNUNET_TIME_UNIT_SECONDS,
- &send_kilo, cls));
-}
-
-
-
-/**
- * Main method, starts scheduler with task_timeout.
- */
-static int
-check_timeout ()
-{
- int ok;
-
- ok = 1;
- GNUNET_SCHEDULER_run (&task_timeout, &ok);
- return ok;
-}
-
-int
-main (int argc, char *argv[])
-{
- int ret = 0;
-
- GNUNET_log_setup ("test_network_timeout",
-#if VERBOSE
- "DEBUG",
-#else
- "WARNING",
-#endif
- NULL);
- ret += check_timeout ();
- return ret;
-}
-
-/* end of test_network_timeout.c */
+++ /dev/null
-/*
- This file is part of GNUnet.
- (C) 2009 Christian Grothoff (and other contributing authors)
-
- GNUnet is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 2, or (at your
- option) any later version.
-
- GNUnet is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
-*/
-/**
- * @file util/test_network_timeout.c
- * @brief tests for network.c, doing timeout which connect failure
- */
-#include "platform.h"
-#include "gnunet_common.h"
-#include "gnunet_connection_lib.h"
-#include "gnunet_scheduler_lib.h"
-#include "gnunet_time_lib.h"
-
-#define VERBOSE GNUNET_NO
-
-#define PORT 13425
-
-static struct GNUNET_CONNECTION_Handle *csock;
-
-static size_t
-handle_timeout (void *cls, size_t size, void *buf)
-{
- int *ok = cls;
-#if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received timeout signal.\n");
-#endif
-
- GNUNET_assert (size == 0);
- GNUNET_assert (buf == NULL);
- *ok = 0;
- return 0;
-}
-
-
-static void
-task_timeout (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- csock = GNUNET_CONNECTION_create_from_connect (tc->sched,
- "localhost", PORT, 1024);
- GNUNET_assert (csock != NULL);
- GNUNET_assert (NULL !=
- GNUNET_CONNECTION_notify_transmit_ready (csock,
- 1024,
- GNUNET_TIME_UNIT_SECONDS,
- &handle_timeout, cls));
-}
-
-
-
-/**
- * Main method, starts scheduler with task_timeout.
- */
-static int
-check_timeout ()
-{
- int ok;
-
- ok = 1;
- GNUNET_SCHEDULER_run (&task_timeout, &ok);
- return ok;
-}
-
-int
-main (int argc, char *argv[])
-{
- int ret = 0;
-
- GNUNET_log_setup ("test_network_timeout_no_connect",
-#if VERBOSE
- "DEBUG",
-#else
- "WARNING",
-#endif
- NULL);
- ret += check_timeout ();
- return ret;
-}
-
-/* end of test_network_timeout_no_connect.c */
+++ /dev/null
-/*
- This file is part of GNUnet.
- (C) 2009 Christian Grothoff (and other contributing authors)
-
- GNUnet is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 2, or (at your
- option) any later version.
-
- GNUnet is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
-*/
-/**
- * @file util/test_network_transmit_cancel.c
- * @brief tests for network.c
- */
-#include "platform.h"
-#include "gnunet_common.h"
-#include "gnunet_connection_lib.h"
-#include "gnunet_scheduler_lib.h"
-#include "gnunet_time_lib.h"
-
-#define VERBOSE GNUNET_NO
-
-#define PORT 12435
-
-
-static size_t
-not_run (void *cls, size_t size, void *buf)
-{
- GNUNET_assert (0);
- return 0;
-}
-
-
-static void
-task_transmit_cancel (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- int *ok = cls;
- struct GNUNET_CONNECTION_TransmitHandle *th;
- struct GNUNET_CONNECTION_Handle *csock;
-
- csock = GNUNET_CONNECTION_create_from_connect (tc->sched,
- "localhost", PORT, 1024);
- GNUNET_assert (csock != NULL);
- th = GNUNET_CONNECTION_notify_transmit_ready (csock,
- 12,
- GNUNET_TIME_UNIT_MINUTES,
- ¬_run, cls);
- GNUNET_CONNECTION_notify_transmit_ready_cancel (th);
- GNUNET_CONNECTION_destroy (csock);
- *ok = 0;
-}
-
-
-
-
-/**
- * Main method, starts scheduler with task_timeout.
- */
-static int
-check_transmit_cancel ()
-{
- int ok;
-
- ok = 1;
- GNUNET_SCHEDULER_run (&task_transmit_cancel, &ok);
- return ok;
-}
-
-
-int
-main (int argc, char *argv[])
-{
- int ret = 0;
-
- GNUNET_log_setup ("test_network_transmit_cancel",
-#if VERBOSE
- "DEBUG",
-#else
- "WARNING",
-#endif
- NULL);
- ret += check_transmit_cancel ();
-
- return ret;
-}
-
-/* end of test_network_transmit_cancel.c */