X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=src%2Futil%2Fnetwork.c;h=5fe25da3bc747f472dd0771c5933fa13750ff02f;hb=72c8645af31896829b674b575c5375706f362a30;hp=fb8744af186aa4662ae14cc1c724ec7035b54e4f;hpb=ea907a5c767e7e884adf605cea358bb45246d6c3;p=oweals%2Fgnunet.git diff --git a/src/util/network.c b/src/util/network.c index fb8744af1..5fe25da3b 100644 --- a/src/util/network.c +++ b/src/util/network.c @@ -1,6 +1,6 @@ /* This file is part of GNUnet. - (C) 2009 Christian Grothoff (and other contributing authors) + (C) 2009, 2012 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 @@ -22,12 +22,11 @@ * @file util/network.c * @brief basic, low-level networking interface * @author Nils Durner + * @author Christian Grothoff */ - #include "platform.h" -#include "gnunet_disk_lib.h" #include "disk.h" -#include "gnunet_container_lib.h" +#include "gnunet_util_lib.h" #define LOG(kind,...) GNUNET_log_from (kind, "util", __VA_ARGS__) #define LOG_STRERROR_FILE(kind,syscall,filename) GNUNET_log_from_strerror_file (kind, "util", syscall, filename) @@ -35,7 +34,6 @@ #define DEBUG_NETWORK GNUNET_EXTRA_LOGGING -#define DEBUG_W32_CYCLES GNUNET_EXTRA_LOGGING #ifndef INVALID_SOCKET #define INVALID_SOCKET -1 @@ -46,7 +44,6 @@ struct GNUNET_NETWORK_Handle { #ifndef MINGW int fd; - #else SOCKET fd; #endif @@ -69,6 +66,77 @@ struct GNUNET_NETWORK_Handle }; +/** + * Test if the given protocol family is supported by this system. + * + * @param pf protocol family to test (PF_INET, PF_INET6, PF_UNIX) + * @return GNUNET_OK if the PF is supported + */ +int +GNUNET_NETWORK_test_pf (int pf) +{ + int s; + + s = socket (pf, SOCK_STREAM, 0); + if (-1 == s) + { + if (EAFNOSUPPORT == errno) + return GNUNET_NO; + fprintf (stderr, "Failed to create test socket: %s\n", STRERROR (errno)); + return GNUNET_SYSERR; + } +#if WINDOWS + closesocket (s); +#else + close (s); +#endif + return GNUNET_OK; +} + + +/** + * Given a unixpath that is too long (larger than UNIX_PATH_MAX), + * shorten it to an acceptable length while keeping it unique + * and making sure it remains a valid filename (if possible). + * + * @param unixpath long path, will be freed (or same pointer returned + * with moved 0-termination). + * @return shortened unixpath, NULL on error + */ +char * +GNUNET_NETWORK_shorten_unixpath (char *unixpath) +{ + struct sockaddr_un dummy; + size_t slen; + char *end; + struct GNUNET_CRYPTO_ShortHashCode sh; + struct GNUNET_CRYPTO_ShortHashAsciiEncoded ae; + size_t upm; + + upm = sizeof (dummy.sun_path); + slen = strlen (unixpath); + if (slen < upm) + return unixpath; /* no shortening required */ + GNUNET_CRYPTO_short_hash (unixpath, slen, &sh); + while (sizeof (struct GNUNET_CRYPTO_ShortHashAsciiEncoded) + + strlen (unixpath) >= upm) + { + if (NULL == (end = strrchr (unixpath, '/'))) + { + GNUNET_log (GNUNET_ERROR_TYPE_ERROR, + _("Unable to shorten unix path `%s' while keeping name unique\n"), + unixpath); + GNUNET_free (unixpath); + return NULL; + } + *end = '\0'; + } + GNUNET_CRYPTO_short_hash_to_enc (&sh, &ae); + strcat (unixpath, (char*) ae.short_encoding); + return unixpath; +} + + #ifndef FD_COPY #define FD_COPY(s, d) (memcpy ((d), (s), sizeof (fd_set))) #endif @@ -76,12 +144,13 @@ struct GNUNET_NETWORK_Handle /** * Set if a socket should use blocking or non-blocking IO. + * * @param fd socket * @param doBlock blocking mode * @return GNUNET_OK on success, GNUNET_SYSERR on error */ -static int -socket_set_blocking (struct GNUNET_NETWORK_Handle *fd, int doBlock) +int +GNUNET_NETWORK_socket_set_blocking (struct GNUNET_NETWORK_Handle *fd, int doBlock) { #if MINGW @@ -123,7 +192,6 @@ socket_set_blocking (struct GNUNET_NETWORK_Handle *fd, int doBlock) } -#ifndef MINGW /** * Make a socket non-inheritable to child processes * @@ -134,8 +202,8 @@ socket_set_blocking (struct GNUNET_NETWORK_Handle *fd, int doBlock) static int socket_set_inheritable (const struct GNUNET_NETWORK_Handle *h) { +#ifndef MINGW int i; - i = fcntl (h->fd, F_GETFD); if (i < 0) return GNUNET_SYSERR; @@ -144,9 +212,18 @@ socket_set_inheritable (const struct GNUNET_NETWORK_Handle *h) i |= FD_CLOEXEC; if (fcntl (h->fd, F_SETFD, i) < 0) return GNUNET_SYSERR; +#else + BOOL b; + SetLastError (0); + b = SetHandleInformation ((HANDLE) h->fd, HANDLE_FLAG_INHERIT, 0); + if (!b) + { + SetErrnoFromWinsockError (WSAGetLastError ()); + return GNUNET_SYSERR; + } +#endif return GNUNET_OK; } -#endif #ifdef DARWIN @@ -194,6 +271,62 @@ socket_set_nodelay (const struct GNUNET_NETWORK_Handle *h) } +/** + * Perform proper canonical initialization for a network handle. + * Set it to non-blocking, make it non-inheritable to child + * processes, disable SIGPIPE, enable "nodelay" (if non-UNIX + * stream socket) and check that it is smaller than FS_SETSIZE. + * + * @param h socket to initialize + * @param af address family of the socket + * @param type socket type + * @return GNUNET_OK on success, GNUNET_SYSERR if initialization + * failed and the handle was destroyed + */ +static int +initialize_network_handle (struct GNUNET_NETWORK_Handle *h, + int af, int type) +{ + h->af = af; + if (h->fd == INVALID_SOCKET) + { +#ifdef MINGW + SetErrnoFromWinsockError (WSAGetLastError ()); +#endif + GNUNET_free (h); + return GNUNET_SYSERR; + } +#ifndef MINGW + if (h->fd >= FD_SETSIZE) + { + GNUNET_break (GNUNET_OK == GNUNET_NETWORK_socket_close (h)); + errno = EMFILE; + return GNUNET_SYSERR; + } +#endif + if (GNUNET_OK != socket_set_inheritable (h)) + LOG_STRERROR (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK, + "socket_set_inheritable"); + + if (GNUNET_SYSERR == GNUNET_NETWORK_socket_set_blocking (h, GNUNET_NO)) + { + GNUNET_break (0); + GNUNET_break (GNUNET_OK == GNUNET_NETWORK_socket_close (h)); + return GNUNET_SYSERR; + } +#ifdef DARWIN + socket_set_nosigpipe (h); +#endif + if ( (type == SOCK_STREAM) +#ifdef AF_UNIX + && (af != AF_UNIX) +#endif + ) + socket_set_nodelay (h); + return GNUNET_OK; +} + + /** * accept a new connection on a socket * @@ -221,84 +354,54 @@ GNUNET_NETWORK_socket_accept (const struct GNUNET_NETWORK_Handle *desc, } #endif ret->fd = accept (desc->fd, address, address_len); - if (address != NULL) - ret->af = address->sa_family; - else - ret->af = desc->af; - if (ret->fd == INVALID_SOCKET) - { -#ifdef MINGW - SetErrnoFromWinsockError (WSAGetLastError ()); -#endif - GNUNET_free (ret); + if (GNUNET_OK != initialize_network_handle (ret, + (NULL != address) ? address->sa_family : desc->af, + SOCK_STREAM)) return NULL; - } -#ifndef MINGW - if (ret->fd >= FD_SETSIZE) - { - GNUNET_break (0 == close (ret->fd)); - GNUNET_free (ret); - errno = EMFILE; - return NULL; - } -#endif - if (GNUNET_SYSERR == socket_set_blocking (ret, GNUNET_NO)) - - { - - /* we might want to treat this one as fatal... */ - GNUNET_break (0); - GNUNET_break (GNUNET_OK == GNUNET_NETWORK_socket_close (ret)); - return NULL; - } - -#ifndef MINGW - if (GNUNET_OK != socket_set_inheritable (ret)) - LOG_STRERROR (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK, - "socket_set_inheritable"); -#endif -#ifdef DARWIN - socket_set_nosigpipe (ret); -#endif -#ifdef AF_UNIX - if (ret->af != AF_UNIX) -#endif - socket_set_nodelay (ret); return ret; } /** * Bind to a connected socket - * @param desc socket + * + * @param desc socket to bind * @param address address to be bound * @param address_len length of address + * @param flags flags affecting bind behaviour * @return GNUNET_OK on success, GNUNET_SYSERR otherwise */ int GNUNET_NETWORK_socket_bind (struct GNUNET_NETWORK_Handle *desc, const struct sockaddr *address, - socklen_t address_len) + socklen_t address_len, + int flags) { int ret; #ifdef IPV6_V6ONLY #ifdef IPPROTO_IPV6 - const int on = 1; + { + const int on = 1; - if (desc->af == AF_INET6) - if (0 != setsockopt (desc->fd, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof (on))) - LOG_STRERROR (GNUNET_ERROR_TYPE_DEBUG, "setsockopt"); + if (desc->af == AF_INET6) + if (setsockopt (desc->fd, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof (on))) + LOG_STRERROR (GNUNET_ERROR_TYPE_DEBUG, "setsockopt"); + } #endif #endif #ifndef WINDOWS - /* This is required, and required here, but only on UNIX */ - if (0 != setsockopt (desc->fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof (on))) - LOG_STRERROR (GNUNET_ERROR_TYPE_DEBUG, "setsockopt"); + { + const int on = 1; + + /* This is required, and required here, but only on UNIX */ + if (0 != setsockopt (desc->fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof (on))) + LOG_STRERROR (GNUNET_ERROR_TYPE_DEBUG, "setsockopt"); + } #endif #ifndef LINUX #ifndef MINGW - if (address->sa_family == AF_UNIX) + if (address->sa_family == AF_UNIX && (flags & GNUNET_BIND_EXCLUSIVE) == 0) { const struct sockaddr_un *un = (const struct sockaddr_un *) address; @@ -337,19 +440,13 @@ GNUNET_NETWORK_socket_close (struct GNUNET_NETWORK_Handle *desc) #ifdef MINGW DWORD error = 0; -#if DEBUG_NETWORK - LOG (GNUNET_ERROR_TYPE_DEBUG, "Closing 0x%x\n", - desc->fd); -#endif SetLastError (0); ret = closesocket (desc->fd); error = WSAGetLastError (); SetErrnoFromWinsockError (error); -#if DEBUG_NETWORK LOG (GNUNET_ERROR_TYPE_DEBUG, "Closed 0x%x, closesocket() returned %d, GLE is %u\n", desc->fd, ret, error); -#endif #else ret = close (desc->fd); #endif @@ -500,15 +597,16 @@ GNUNET_NETWORK_socket_recvfrom_amount (const struct GNUNET_NETWORK_Handle * error = ioctl (desc->fd, FIONREAD, &pending); if (error == 0) + return (ssize_t) pending; + return GNUNET_NO; #else u_long pending; error = ioctlsocket (desc->fd, FIONREAD, &pending); if (error != SOCKET_ERROR) + return (ssize_t) pending; + return GNUNET_NO; #endif - return pending; - else - return GNUNET_NO; } @@ -685,49 +783,10 @@ GNUNET_NETWORK_socket_create (int domain, int type, int protocol) struct GNUNET_NETWORK_Handle *ret; ret = GNUNET_malloc (sizeof (struct GNUNET_NETWORK_Handle)); - ret->af = domain; ret->fd = socket (domain, type, protocol); - if (INVALID_SOCKET == ret->fd) - { -#ifdef MINGW - SetErrnoFromWinsockError (WSAGetLastError ()); -#endif - GNUNET_free (ret); + if (GNUNET_OK != + initialize_network_handle (ret, domain, type)) return NULL; - } - -#ifndef MINGW - if (ret->fd >= FD_SETSIZE) - { - GNUNET_break (0 == close (ret->fd)); - GNUNET_free (ret); - errno = EMFILE; - return NULL; - } - -#endif - if (GNUNET_SYSERR == socket_set_blocking (ret, GNUNET_NO)) - { - /* we might want to treat this one as fatal... */ - GNUNET_break (0); - GNUNET_break (GNUNET_OK == GNUNET_NETWORK_socket_close (ret)); - return NULL; - } - -#ifndef MINGW - if (GNUNET_OK != socket_set_inheritable (ret)) - LOG_STRERROR (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK, - "socket_set_inheritable"); -#endif -#ifdef DARWIN - socket_set_nosigpipe (ret); -#endif - if ((type == SOCK_STREAM) -#ifdef AF_UNIX - && (domain != AF_UNIX) -#endif - ) - socket_set_nodelay (ret); return ret; } @@ -847,6 +906,7 @@ void GNUNET_NETWORK_fdset_add (struct GNUNET_NETWORK_FDSet *dst, const struct GNUNET_NETWORK_FDSet *src) { +#ifndef MINGW int nfds; for (nfds = src->nsds; nfds > 0; nfds--) @@ -857,7 +917,18 @@ GNUNET_NETWORK_fdset_add (struct GNUNET_NETWORK_FDSet *dst, if (nfds + 1 > dst->nsds) dst->nsds = nfds + 1; } -#ifdef MINGW +#else + /* This is MinGW32-specific implementation that relies on the code that + * winsock2.h defines for FD_SET. Namely, it relies on FD_SET checking + * that fd being added is not already in the set. + * Also relies on us knowing what's inside fd_set (fd_count and fd_array). + */ + int i; + for (i = 0; i < src->sds.fd_count; i++) + FD_SET (src->sds.fd_array[i], &dst->sds); + if (src->nsds > dst->nsds) + dst->nsds = src->nsds; + GNUNET_CONTAINER_slist_append (dst->handles, src->handles); #endif } @@ -895,7 +966,29 @@ GNUNET_NETWORK_get_fd (struct GNUNET_NETWORK_Handle *desc) return desc->fd; } +/** + * Return sockaddr for this network handle + * + * @param desc wrapper to process + * @return sockaddr + */ +struct sockaddr* +GNUNET_NETWORK_get_addr (struct GNUNET_NETWORK_Handle *desc) +{ + return desc->addr; +} +/** + * Return sockaddr length for this network handle + * + * @param desc wrapper to process + * @return socklen_t for sockaddr + */ +socklen_t +GNUNET_NETWORK_get_addrlen (struct GNUNET_NETWORK_Handle *desc) +{ + return desc->addrlen; +} /** * Copy a native fd set * @@ -1055,9 +1148,6 @@ GNUNET_NETWORK_fdset_overlap (const struct GNUNET_NETWORK_FDSet *fds1, if (GNUNET_CONTAINER_slist_contains (fds2->handles, h, sizeof (struct GNUNET_DISK_FileHandle))) { -#if DEBUG_NETWORK - LOG (GNUNET_ERROR_TYPE_DEBUG, "Match!\n"); -#endif return GNUNET_YES; } GNUNET_CONTAINER_slist_next (&it); @@ -1098,13 +1188,47 @@ GNUNET_NETWORK_fdset_destroy (struct GNUNET_NETWORK_FDSet *fds) GNUNET_free (fds); } +#if MINGW +struct _select_params +{ + fd_set *r; + fd_set *w; + fd_set *e; + struct timeval *tv; + HANDLE wakeup; + HANDLE standby; + SOCKET wakeup_socket; + int status; +}; + +static DWORD WINAPI +_selector (LPVOID p) +{ + struct _select_params *sp = p; + + while (1) + { + WaitForSingleObject (sp->standby, INFINITE); + ResetEvent (sp->standby); + sp->status = select (1, sp->r, sp->w, sp->e, sp->tv); + if (FD_ISSET (sp->wakeup_socket, sp->r)) + { + FD_CLR (sp->wakeup_socket, sp->r); + sp->status -= 1; + } + SetEvent (sp->wakeup); + } + return 0; +} +#endif + /** - * Check if sockets meet certain conditions - * @param rfds set of sockets to be checked for readability - * @param wfds set of sockets to be checked for writability - * @param efds set of sockets to be checked for exceptions + * Check if sockets or pipes meet certain conditions + * @param rfds set of sockets or pipes to be checked for readability + * @param wfds set of sockets or pipes to be checked for writability + * @param efds set of sockets or pipes to be checked for exceptions * @param timeout relative value when to return - * @return number of selected sockets, GNUNET_SYSERR on error + * @return number of selected sockets or pipes, GNUNET_SYSERR on error */ int GNUNET_NETWORK_socket_select (struct GNUNET_NETWORK_FDSet *rfds, @@ -1113,7 +1237,6 @@ GNUNET_NETWORK_socket_select (struct GNUNET_NETWORK_FDSet *rfds, const struct GNUNET_TIME_Relative timeout) { int nfds = 0; - #ifdef MINGW int handles = 0; int ex_handles = 0; @@ -1124,28 +1247,40 @@ GNUNET_NETWORK_socket_select (struct GNUNET_NETWORK_FDSet *rfds, int retcode = 0; DWORD ms_total = 0; - int nsock = 0, nhandles = 0, nSockEvents = 0; + int nhandles = 0; - static HANDLE hEventRead = 0; - static HANDLE hEventWrite = 0; - static HANDLE hEventException = 0; static HANDLE hEventPipeWrite = 0; static HANDLE hEventReadReady = 0; + static struct _select_params sp; + static HANDLE select_thread = NULL; + static HANDLE select_finished_event = NULL; + static HANDLE select_standby_event = NULL; + static SOCKET select_wakeup_socket = -1; + static SOCKET select_send_socket = -1; + static struct timeval select_timeout; + int readPipes = 0; int writePipePos = 0; HANDLE handle_array[FD_SETSIZE + 2]; int returncode = -1; - DWORD newretcode = 0; int returnedpos = 0; - struct GNUNET_CONTAINER_SList *handles_read, *handles_write, *handles_except; + struct GNUNET_CONTAINER_SList *handles_read; + struct GNUNET_CONTAINER_SList *handles_write; + struct GNUNET_CONTAINER_SList *handles_except; - fd_set aread, awrite, aexcept; + int selectret = 0; + + fd_set aread; + fd_set awrite; + fd_set aexcept; #if DEBUG_NETWORK - fd_set bread, bwrite, bexcept; + fd_set bread; + fd_set bwrite; + fd_set bexcept; #endif /* TODO: Make this growable */ @@ -1199,11 +1334,11 @@ GNUNET_NETWORK_socket_select (struct GNUNET_NETWORK_FDSet *rfds, #endif ) { + GNUNET_break (0); LOG (GNUNET_ERROR_TYPE_ERROR, _ ("Fatal internal logic error, process hangs in `%s' (abort with CTRL-C)!\n"), "select"); - GNUNET_break (0); } #ifndef MINGW tv.tv_sec = timeout.rel_value / GNUNET_TIME_UNIT_SECONDS.rel_value; @@ -1222,7 +1357,14 @@ GNUNET_NETWORK_socket_select (struct GNUNET_NETWORK_FDSet *rfds, if (timeout.rel_value == GNUNET_TIME_UNIT_FOREVER_REL.rel_value) ms_total = INFINITE; else + { ms_total = timeout.rel_value / GNUNET_TIME_UNIT_MILLISECONDS.rel_value; + if (timeout.rel_value / GNUNET_TIME_UNIT_MILLISECONDS.rel_value > 0xFFFFFFFFLL - 1) + { + GNUNET_break (0); + ms_total = 0xFFFFFFFF - 1; + } + } /* select() may be used as a portable way to sleep */ if (!(rfds || wfds || efds)) { @@ -1230,31 +1372,250 @@ GNUNET_NETWORK_socket_select (struct GNUNET_NETWORK_FDSet *rfds, return 0; } - /* Events for sockets */ - if (!hEventRead) - hEventRead = CreateEvent (NULL, TRUE, FALSE, NULL); + if (select_thread == NULL) + { + SOCKET select_listening_socket = -1; + struct sockaddr_in s_in; + int alen; + int res; + unsigned long p; + + select_standby_event = CreateEvent (NULL, TRUE, FALSE, NULL); + select_finished_event = CreateEvent (NULL, TRUE, FALSE, NULL); + + select_wakeup_socket = WSASocket (AF_INET, SOCK_STREAM, IPPROTO_TCP, NULL, 0, WSA_FLAG_OVERLAPPED); + + select_listening_socket = WSASocket (AF_INET, SOCK_STREAM, IPPROTO_TCP, NULL, 0, WSA_FLAG_OVERLAPPED); + + p = 1; + res = ioctlsocket (select_wakeup_socket, FIONBIO, &p); + LOG (GNUNET_ERROR_TYPE_DEBUG, "Select thread initialization: ioctlsocket() returns %d\n", res); + + alen = sizeof (s_in); + s_in.sin_family = AF_INET; + s_in.sin_port = 0; + s_in.sin_addr.S_un.S_un_b.s_b1 = 127; + s_in.sin_addr.S_un.S_un_b.s_b2 = 0; + s_in.sin_addr.S_un.S_un_b.s_b3 = 0; + s_in.sin_addr.S_un.S_un_b.s_b4 = 1; + res = bind (select_listening_socket, (const struct sockaddr *) &s_in, sizeof (s_in)); + LOG (GNUNET_ERROR_TYPE_DEBUG, "Select thread initialization: bind() returns %d\n", res); + + res = getsockname (select_listening_socket, (struct sockaddr *) &s_in, &alen); + LOG (GNUNET_ERROR_TYPE_DEBUG, "Select thread initialization: getsockname() returns %d\n", res); + + res = listen (select_listening_socket, SOMAXCONN); + LOG (GNUNET_ERROR_TYPE_DEBUG, "Select thread initialization: listen() returns %d\n", res); + + res = connect (select_wakeup_socket, (const struct sockaddr *) &s_in, sizeof (s_in)); + LOG (GNUNET_ERROR_TYPE_DEBUG, "Select thread initialization: connect() returns %d\n", res); + + select_send_socket = accept (select_listening_socket, (struct sockaddr *) &s_in, &alen); + + closesocket (select_listening_socket); + + sp.wakeup = select_finished_event; + sp.standby = select_standby_event; + sp.wakeup_socket = select_wakeup_socket; + + select_thread = CreateThread (NULL, 0, _selector, &sp, 0, NULL); + } + + + handles_read = GNUNET_CONTAINER_slist_create (); + handles_write = GNUNET_CONTAINER_slist_create (); + handles_except = GNUNET_CONTAINER_slist_create (); + FD_ZERO (&aread); + FD_ZERO (&awrite); + FD_ZERO (&aexcept); +#if DEBUG_NETWORK + FD_ZERO (&bread); + FD_ZERO (&bwrite); + FD_ZERO (&bexcept); +#endif + if (rfds) + { + FD_COPY (&rfds->sds, &aread); +#if DEBUG_NETWORK + FD_COPY (&rfds->sds, &bread); +#endif + } + if (wfds) + { + FD_COPY (&wfds->sds, &awrite); +#if DEBUG_NETWORK + FD_COPY (&wfds->sds, &bwrite); +#endif + } + if (efds) + { + FD_COPY (&efds->sds, &aexcept); +#if DEBUG_NETWORK + FD_COPY (&efds->sds, &bexcept); +#endif + } + + /* Start by doing a fast check on sockets and pipes (without waiting). It is cheap, and is sufficient most of the time. + By profiling we detected that to be true in 90% of the cases. + */ + + /* Do the select now */ + select_timeout.tv_sec = 0; + select_timeout.tv_usec = 0; + + /* Copy all the writes to the except, so we can detect connect() errors */ + for (i = 0; i < awrite.fd_count; i++) + FD_SET (awrite.fd_array[i], &aexcept); + if (aread.fd_count > 0 || awrite.fd_count > 0 || aexcept.fd_count > 0) + selectret = select (1, (rfds != NULL) ? &aread : NULL, + (wfds != NULL) ? &awrite : NULL, &aexcept, &select_timeout); else - ResetEvent (hEventRead); + selectret = 0; + if (selectret == -1) + { + /* Throw an error early on, while we still have the context. */ + LOG (GNUNET_ERROR_TYPE_ERROR, "W32 select(%d, %d, %d) failed: %lu\n", + rfds ? aread.fd_count : 0, wfds ? awrite.fd_count : 0, aexcept.fd_count, GetLastError ()); + GNUNET_abort (); + } + + /* Check aexcept, add its contents to awrite + This is technically wrong (aexcept might have its own descriptors), we should + have checked that descriptors were in awrite originally before re-adding them from + aexcept. Luckily, GNUnet never uses aexcept for anything, so this does not become a problem (yet). */ + for (i = 0; i < aexcept.fd_count; i++) + FD_SET (aexcept.fd_array[i], &awrite); + + /* If our select returned something or is a 0-timed request, then also check the pipes and get out of here! */ + /* Sadly, it means code duplication :( */ + if ((selectret > 0) || (ms_total == 0)) + { + /* Read Pipes */ + if (rfds && read_handles) + { + struct GNUNET_CONTAINER_SList_Iterator i; + int c; + + for (c = 0, i = GNUNET_CONTAINER_slist_begin (rfds->handles); + GNUNET_CONTAINER_slist_end (&i) != GNUNET_YES; + GNUNET_CONTAINER_slist_next (&i), c++) + { + struct GNUNET_DISK_FileHandle *fh; + + fh = (struct GNUNET_DISK_FileHandle *) GNUNET_CONTAINER_slist_get (&i,NULL); + if (fh->type == GNUNET_DISK_HANLDE_TYPE_PIPE) + { + DWORD error; + BOOL bret; + + SetLastError (0); + DWORD waitstatus = 0; + bret = PeekNamedPipe (fh->h, NULL, 0, NULL, &waitstatus, NULL); + error = GetLastError (); + LOG (GNUNET_ERROR_TYPE_DEBUG, "Peek at read pipe %d (0x%x) returned %d (%d bytes available) GLE %u\n", + c, fh->h, bret, waitstatus, error); + if (bret == 0) + { + /* TODO: either add more errors to this condition, or eliminate it + * entirely (failed to peek -> pipe is in serious trouble, should + * be selected as readable). + */ + if (error != ERROR_BROKEN_PIPE && error != ERROR_INVALID_HANDLE) + continue; + } + else if (waitstatus <= 0) + continue; + GNUNET_CONTAINER_slist_add (handles_read, GNUNET_CONTAINER_SLIST_DISPOSITION_TRANSIENT, + fh, sizeof (struct GNUNET_DISK_FileHandle)); + retcode++; + LOG (GNUNET_ERROR_TYPE_DEBUG, "Added read Pipe 0x%x (0x%x)\n", + fh, fh->h); + } + else + { + GNUNET_CONTAINER_slist_add (handles_read, GNUNET_CONTAINER_SLIST_DISPOSITION_TRANSIENT, + fh, sizeof (struct GNUNET_DISK_FileHandle)); + retcode++; + } + } + } + if (wfds && write_handles) + { + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Adding the write ready event to the array as %d\n", nhandles); + GNUNET_CONTAINER_slist_append (handles_write, wfds->handles); + retcode += write_handles; + } + if (efds && ex_handles) + { + struct GNUNET_CONTAINER_SList_Iterator i; + + for (i = GNUNET_CONTAINER_slist_begin (efds->handles); + GNUNET_CONTAINER_slist_end (&i) != GNUNET_YES; + GNUNET_CONTAINER_slist_next (&i)) + { + struct GNUNET_DISK_FileHandle *fh; + DWORD dwBytes; + + fh = (struct GNUNET_DISK_FileHandle *) GNUNET_CONTAINER_slist_get (&i, NULL); + if (fh->type == GNUNET_DISK_HANLDE_TYPE_PIPE) + { + if (PeekNamedPipe (fh->h, NULL, 0, NULL, &dwBytes, NULL)) + continue; + GNUNET_CONTAINER_slist_add (handles_except, GNUNET_CONTAINER_SLIST_DISPOSITION_TRANSIENT, + fh, sizeof (struct GNUNET_DISK_FileHandle)); + retcode++; + } + } + } + + /* Add our select() result.*/ + if (selectret >= 0) + retcode += selectret; + + if (rfds) + { + GNUNET_NETWORK_fdset_zero (rfds); + if (selectret != -1) + GNUNET_NETWORK_fdset_copy_native (rfds, &aread, selectret); + GNUNET_CONTAINER_slist_append (rfds->handles, handles_read); + } + if (wfds) + { + GNUNET_NETWORK_fdset_zero (wfds); + if (selectret != -1) + GNUNET_NETWORK_fdset_copy_native (wfds, &awrite, selectret); + GNUNET_CONTAINER_slist_append (wfds->handles, handles_write); + } + if (efds) + { + GNUNET_NETWORK_fdset_zero (efds); + if (selectret != -1) + GNUNET_NETWORK_fdset_copy_native (efds, &aexcept, selectret); + GNUNET_CONTAINER_slist_append (efds->handles, handles_except); + } + GNUNET_CONTAINER_slist_destroy (handles_read); + GNUNET_CONTAINER_slist_destroy (handles_write); + GNUNET_CONTAINER_slist_destroy (handles_except); + + if (selectret == -1) + return -1; + return retcode; + } + + /* If we got this far, use slower implementation that is able to do a waiting select + on both sockets and pipes simultaneously */ + + /* Events for pipes */ if (!hEventReadReady) hEventReadReady = CreateEvent (NULL, TRUE, TRUE, NULL); - if (!hEventWrite) - hEventWrite = CreateEvent (NULL, TRUE, FALSE, NULL); - else - ResetEvent (hEventWrite); - if (!hEventException) - hEventException = CreateEvent (NULL, TRUE, FALSE, NULL); - else - ResetEvent (hEventException); - - /* Event for pipes */ if (!hEventPipeWrite) hEventPipeWrite = CreateEvent (NULL, TRUE, TRUE, NULL); readPipes = 0; writePipePos = -1; - handles_read = GNUNET_CONTAINER_slist_create (); - handles_write = GNUNET_CONTAINER_slist_create (); - handles_except = GNUNET_CONTAINER_slist_create (); + retcode = 0; + FD_ZERO (&aread); FD_ZERO (&awrite); FD_ZERO (&aexcept); @@ -1298,43 +1659,35 @@ GNUNET_NETWORK_socket_select (struct GNUNET_NETWORK_FDSet *rfds, fh = (struct GNUNET_DISK_FileHandle *) GNUNET_CONTAINER_slist_get (&i, NULL); - if (fh->type == GNUNET_PIPE) + if (fh->type == GNUNET_DISK_HANLDE_TYPE_PIPE) { /* Read zero bytes to check the status of the pipe */ -#if DEBUG_NETWORK LOG (GNUNET_ERROR_TYPE_DEBUG, "Reading 0 bytes from the pipe 0x%x\n", fh->h); -#endif if (!ReadFile (fh->h, NULL, 0, NULL, fh->oOverlapRead)) { DWORD error_code = GetLastError (); if (error_code == ERROR_IO_PENDING) { -#if DEBUG_NETWORK LOG (GNUNET_ERROR_TYPE_DEBUG, "Adding the pipe's 0x%x overlapped event to the array as %d\n", fh->h, nhandles); -#endif handle_array[nhandles++] = fh->oOverlapRead->hEvent; readArray[readPipes++] = fh; } else { -#if DEBUG_NETWORK LOG (GNUNET_ERROR_TYPE_DEBUG, "Read failed, adding the read ready event to the array as %d\n", nhandles); -#endif handle_array[nhandles++] = hEventReadReady; readArray[readPipes++] = fh; } } else { -#if DEBUG_NETWORK LOG (GNUNET_ERROR_TYPE_DEBUG, "Adding the read ready event to the array as %d\n", nhandles); -#endif handle_array[nhandles++] = hEventReadReady; readArray[readPipes++] = fh; } @@ -1349,10 +1702,8 @@ GNUNET_NETWORK_socket_select (struct GNUNET_NETWORK_FDSet *rfds, } if (wfds && write_handles) { -#if DEBUG_NETWORK LOG (GNUNET_ERROR_TYPE_DEBUG, "Adding the write ready event to the array as %d\n", nhandles); -#endif handle_array[nhandles++] = hEventPipeWrite; writePipePos = nhandles; } @@ -1369,7 +1720,7 @@ GNUNET_NETWORK_socket_select (struct GNUNET_NETWORK_FDSet *rfds, fh = (struct GNUNET_DISK_FileHandle *) GNUNET_CONTAINER_slist_get (&i, NULL); - if (fh->type == GNUNET_PIPE) + if (fh->type == GNUNET_DISK_HANLDE_TYPE_PIPE) { if (!PeekNamedPipe (fh->h, NULL, 0, NULL, &dwBytes, NULL)) { @@ -1377,151 +1728,106 @@ GNUNET_NETWORK_socket_select (struct GNUNET_NETWORK_FDSet *rfds, GNUNET_CONTAINER_SLIST_DISPOSITION_TRANSIENT, fh, sizeof (struct GNUNET_DISK_FileHandle)); - newretcode++; } } } } - if (nfds > 0) - { - if (rfds) - { -#if DEBUG_NETWORK - LOG (GNUNET_ERROR_TYPE_DEBUG, - "Adding the socket read event to the array as %d\n", nhandles); -#endif - handle_array[nhandles++] = hEventRead; - nSockEvents++; - for (i = 0; i < rfds->sds.fd_count; i++) - { - WSAEventSelect (rfds->sds.fd_array[i], hEventRead, - FD_ACCEPT | FD_READ | FD_CLOSE); - nsock++; - } - } - if (wfds) - { - int wakeup = 0; -#if DEBUG_NETWORK - LOG (GNUNET_ERROR_TYPE_DEBUG, - "Adding the socket write event to the array as %d\n", nhandles); -#endif - handle_array[nhandles++] = hEventWrite; - nSockEvents++; - for (i = 0; i < wfds->sds.fd_count; i++) - { - DWORD error; - int status; + sp.status = 0; - status = send (wfds->sds.fd_array[i], NULL, 0, 0); - error = GetLastError (); -#if DEBUG_NETWORK - LOG (GNUNET_ERROR_TYPE_DEBUG, - "pre-send to the socket %d returned %d (%u)\n", i, status, error); -#endif - if (status == 0 || (error != WSAEWOULDBLOCK && error != WSAENOTCONN)) - wakeup = 1; - WSAEventSelect (wfds->sds.fd_array[i], hEventWrite, - FD_WRITE | FD_CONNECT | FD_CLOSE); - nsock++; - } - if (wakeup) - SetEvent (hEventWrite); - } - if (efds) + if (nfds > 0) + { + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Adding the socket event to the array as %d\n", nhandles); + handle_array[nhandles++] = select_finished_event; + if (timeout.rel_value == GNUNET_TIME_UNIT_FOREVER_REL.rel_value) + sp.tv = NULL; + else { -#if DEBUG_NETWORK - LOG (GNUNET_ERROR_TYPE_DEBUG, - "Adding the socket error event to the array as %d\n", nhandles); -#endif - handle_array[nhandles++] = hEventException; - nSockEvents++; - for (i = 0; i < efds->sds.fd_count; i++) - { - WSAEventSelect (efds->sds.fd_array[i], hEventException, - FD_OOB | FD_CLOSE); - nsock++; - } + select_timeout.tv_sec = timeout.rel_value / GNUNET_TIME_UNIT_SECONDS.rel_value; + select_timeout.tv_usec = 1000 * (timeout.rel_value - + (select_timeout.tv_sec * GNUNET_TIME_UNIT_SECONDS.rel_value)); + sp.tv = &select_timeout; } + FD_SET (select_wakeup_socket, &aread); + sp.r = &aread; + sp.w = &awrite; + sp.e = &aexcept; + /* Failed connections cause sockets to be set in errorfds on W32, + * but on POSIX it should set them in writefds. + * First copy all awrite sockets to aexcept, later we'll + * check aexcept and set its contents in awrite as well + * Sockets are also set in errorfds when OOB data is available, + * but we don't use OOB data. + */ + for (i = 0; i < awrite.fd_count; i++) + FD_SET (awrite.fd_array[i], &aexcept); + ResetEvent (select_finished_event); + SetEvent (select_standby_event); } handle_array[nhandles] = NULL; - -#if DEBUG_NETWORK - LOG (GNUNET_ERROR_TYPE_DEBUG, "Number nfds : %d\n", nfds); - LOG (GNUNET_ERROR_TYPE_DEBUG, "Number of handles : %d\n", nhandles); - LOG (GNUNET_ERROR_TYPE_DEBUG, "retcode : %d\n", newretcode); - LOG (GNUNET_ERROR_TYPE_DEBUG, "Will wait : %d\n", ms_total); -#endif - + LOG (GNUNET_ERROR_TYPE_DEBUG, "nfds: %d, handles: %d, will wait: %llu ms\n", + nfds, nhandles, (unsigned long long) ms_total); if (nhandles) + { returncode = WaitForMultipleObjects (nhandles, handle_array, FALSE, ms_total); -#if DEBUG_NETWORK - LOG (GNUNET_ERROR_TYPE_DEBUG, "WaitForMultipleObjects Returned : %d\n", - returncode); -#endif + LOG (GNUNET_ERROR_TYPE_DEBUG, "WaitForMultipleObjects Returned : %d\n", + returncode); + } + else if (nfds > 0) + { + i = (int) WaitForSingleObject (select_finished_event, INFINITE); + returncode = WAIT_TIMEOUT; + } + else + { + /* Shouldn't come this far. If it does - investigate. */ + GNUNET_assert (0); + } + + if (nfds > 0) + { + /* Don't wake up select-thread when delay is 0, it should return immediately + * and wake up by itself. + */ + if (ms_total != 0) + i = send (select_send_socket, (const char *) &returnedpos, 1, 0); + i = (int) WaitForSingleObject (select_finished_event, INFINITE); + LOG (GNUNET_ERROR_TYPE_DEBUG, "Finished waiting for the select thread: %d %d\n", i, sp.status); + if (ms_total != 0) + { + do + { + i = recv (select_wakeup_socket, (char *) &returnedpos, 1, 0); + } while (i == 1); + } + /* Check aexcept, add its contents to awrite */ + for (i = 0; i < aexcept.fd_count; i++) + FD_SET (aexcept.fd_array[i], &awrite); + } returnedpos = returncode - WAIT_OBJECT_0; -#if DEBUG_NETWORK LOG (GNUNET_ERROR_TYPE_DEBUG, "return pos is : %d\n", returnedpos); -#endif - /* FIXME: THIS LINE IS WRONG !! We should add to handles only handles that fired the events, not all ! */ - /* - * if(rfds) - * GNUNET_CONTAINER_slist_append (handles_read, rfds->handles); - */ if (nhandles && (returnedpos < nhandles)) { DWORD waitstatus; - /* Do the select */ - if (nfds) - { - struct timeval tvslice; + if (sp.status > 0) + retcode += sp.status; - tvslice.tv_sec = 0; - tvslice.tv_usec = 10; - retcode = select (nfds, &aread, &awrite, &aexcept, &tvslice); - if (retcode == -1) - retcode = 0; -#if DEBUG_NETWORK - LOG (GNUNET_ERROR_TYPE_DEBUG, "Select retcode : %d\n", retcode); -#endif - } - /* FIXME: <= writePipePos? Really? */ - if ((writePipePos != -1) && (returnedpos <= writePipePos)) + if ((writePipePos != -1) && (returnedpos < writePipePos)) { GNUNET_CONTAINER_slist_append (handles_write, wfds->handles); retcode += write_handles; -#if DEBUG_NETWORK LOG (GNUNET_ERROR_TYPE_DEBUG, "Added write pipe\n"); -#endif } -#if DEBUG_NETWORK LOG (GNUNET_ERROR_TYPE_DEBUG, "ReadPipes is : %d\n", readPipes); -#endif /* We have some pipes ready for read. */ - /* FIXME: it is supposed to work !! Only choose the Pipes who fired the event, but it is not working */ - if (returnedpos < readPipes) { - /* - * for (i = 0; i < readPipes; i++) - * { - * waitstatus = WaitForSingleObject (handle_array[i], 0); - * LOG (GNUNET_ERROR_TYPE_DEBUG, "Read pipe %d wait status is : %d\n", i, waitstatus); - * if (waitstatus != WAIT_OBJECT_0) - * continue; - * GNUNET_CONTAINER_slist_add (handles_read, - * GNUNET_CONTAINER_SLIST_DISPOSITION_TRANSIENT, - * readArray[i], sizeof (struct GNUNET_DISK_FileHandle)); - * retcode++; - * LOG (GNUNET_ERROR_TYPE_DEBUG, "Added read Pipe\n"); - * } - */ for (i = 0; i < readPipes; i++) { DWORD error; @@ -1532,14 +1838,16 @@ GNUNET_NETWORK_socket_select (struct GNUNET_NETWORK_FDSet *rfds, bret = PeekNamedPipe (readArray[i]->h, NULL, 0, NULL, &waitstatus, NULL); error = GetLastError (); -#if DEBUG_NETWORK LOG (GNUNET_ERROR_TYPE_DEBUG, "Peek at read pipe %d (0x%x) returned %d (%d bytes available) GLE %u\n", i, readArray[i]->h, bret, waitstatus, error); -#endif if (bret == 0) { - if (error != ERROR_BROKEN_PIPE) + /* TODO: either add more errors to this condition, or eliminate it + * entirely (failed to peek -> pipe is in serious trouble, should + * be selected as readable). + */ + if (error != ERROR_BROKEN_PIPE && error != ERROR_INVALID_HANDLE) continue; } else if (waitstatus <= 0) @@ -1549,58 +1857,17 @@ GNUNET_NETWORK_socket_select (struct GNUNET_NETWORK_FDSet *rfds, readArray[i], sizeof (struct GNUNET_DISK_FileHandle)); retcode++; -#if DEBUG_NETWORK LOG (GNUNET_ERROR_TYPE_DEBUG, "Added read Pipe 0x%x (0x%x)\n", readArray[i], readArray[i]->h); -#endif - } - } - waitstatus = WaitForSingleObject (hEventWrite, 0); -#if DEBUG_NETWORK - LOG (GNUNET_ERROR_TYPE_DEBUG, "Wait for the write event returned %d\n", - waitstatus); -#endif - if (waitstatus == WAIT_OBJECT_0) - { - for (i = 0; i < wfds->sds.fd_count; i++) - { - DWORD error; - int status; - int so_error = 0; - int sizeof_so_error = sizeof (so_error); - int gso_result = - getsockopt (wfds->sds.fd_array[i], SOL_SOCKET, SO_ERROR, - (char *) &so_error, &sizeof_so_error); - - status = send (wfds->sds.fd_array[i], NULL, 0, 0); - error = GetLastError (); -#if DEBUG_NETWORK - LOG (GNUNET_ERROR_TYPE_DEBUG, - "send to the socket %d returned %d (%u)\n", i, status, error); -#endif - if (status == 0 || (error != WSAEWOULDBLOCK && error != WSAENOTCONN) || - (status == -1 && gso_result == 0 && error == WSAENOTCONN && - so_error == WSAECONNREFUSED)) - { - FD_SET (wfds->sds.fd_array[i], &awrite); - retcode += 1; - } } } } -#if DEBUG_NETWORK if (!nhandles || (returnedpos >= nhandles)) LOG (GNUNET_ERROR_TYPE_DEBUG, "Returning from _select() with nothing!\n"); -#endif if (rfds) { struct GNUNET_CONTAINER_SList_Iterator t; - for (i = 0; i < rfds->sds.fd_count; i++) - { - WSAEventSelect (rfds->sds.fd_array[i], hEventRead, 0); - nsock++; - } for (t = GNUNET_CONTAINER_slist_begin (rfds->handles); GNUNET_CONTAINER_slist_end (&t) != GNUNET_YES; GNUNET_CONTAINER_slist_next (&t)) @@ -1609,14 +1876,12 @@ GNUNET_NETWORK_socket_select (struct GNUNET_NETWORK_FDSet *rfds, fh = (struct GNUNET_DISK_FileHandle *) GNUNET_CONTAINER_slist_get (&t, NULL); - if (fh->type == GNUNET_PIPE) + if (fh->type == GNUNET_DISK_HANLDE_TYPE_PIPE) { CancelIo (fh->h); } } -#if DEBUG_NETWORK - LOG (GNUNET_ERROR_TYPE_DEBUG, "Zeroing rfds\n"); -#endif + LOG (GNUNET_ERROR_TYPE_DEBUG, "Zeroing rfds%s\n", (retcode != -1 && nhandles && (returnedpos < nhandles)) ? ", copying fdset" : ""); GNUNET_NETWORK_fdset_zero (rfds); if (retcode != -1 && nhandles && (returnedpos < nhandles)) GNUNET_NETWORK_fdset_copy_native (rfds, &aread, retcode); @@ -1624,14 +1889,7 @@ GNUNET_NETWORK_socket_select (struct GNUNET_NETWORK_FDSet *rfds, } if (wfds) { - for (i = 0; i < wfds->sds.fd_count; i++) - { - WSAEventSelect (wfds->sds.fd_array[i], hEventWrite, 0); - nsock++; - } -#if DEBUG_NETWORK - LOG (GNUNET_ERROR_TYPE_DEBUG, "Zeroing wfds\n"); -#endif + LOG (GNUNET_ERROR_TYPE_DEBUG, "Zeroing wfds%s\n", (retcode != -1 && nhandles && (returnedpos < nhandles)) ? ", copying fdset" : ""); GNUNET_NETWORK_fdset_zero (wfds); if (retcode != -1 && nhandles && (returnedpos < nhandles)) GNUNET_NETWORK_fdset_copy_native (wfds, &awrite, retcode); @@ -1639,14 +1897,7 @@ GNUNET_NETWORK_socket_select (struct GNUNET_NETWORK_FDSet *rfds, } if (efds) { - for (i = 0; i < efds->sds.fd_count; i++) - { - WSAEventSelect (efds->sds.fd_array[i], hEventException, 0); - nsock++; - } -#if DEBUG_NETWORK - LOG (GNUNET_ERROR_TYPE_DEBUG, "Zeroing efds\n"); -#endif + LOG (GNUNET_ERROR_TYPE_DEBUG, "Zeroing efds%s\n", (retcode != -1 && nhandles && (returnedpos < nhandles)) ? ", copying fdset" : ""); GNUNET_NETWORK_fdset_zero (efds); if (retcode != -1 && nhandles && (returnedpos < nhandles)) GNUNET_NETWORK_fdset_copy_native (efds, &aexcept, retcode); @@ -1660,12 +1911,10 @@ GNUNET_NETWORK_socket_select (struct GNUNET_NETWORK_FDSet *rfds, { struct GNUNET_CONTAINER_SList_Iterator t; - for (i = 0; i < bread.fd_count; i++) + LOG (GNUNET_ERROR_TYPE_DEBUG, "rfds:\n"); + for (i = 0; i < rfds->sds.fd_count; i++) { - if (bread.fd_array[i] != 0) - LOG (GNUNET_ERROR_TYPE_DEBUG, "FD 0x%x is %s in rfds\n", - bread.fd_array[i], - (SAFE_FD_ISSET (bread.fd_array[i], rfds)) ? "SET" : "NOT SET"); + LOG (GNUNET_ERROR_TYPE_DEBUG, "%d\n", rfds->sds.fd_array[i]); } for (t = GNUNET_CONTAINER_slist_begin (rfds->handles); GNUNET_CONTAINER_slist_end (&t) != GNUNET_YES; @@ -1675,27 +1924,23 @@ GNUNET_NETWORK_socket_select (struct GNUNET_NETWORK_FDSet *rfds, fh = (struct GNUNET_DISK_FileHandle *) GNUNET_CONTAINER_slist_get (&t, NULL); - LOG (GNUNET_ERROR_TYPE_DEBUG, "FD 0x%x is SET in rfds\n", fh->h); + LOG (GNUNET_ERROR_TYPE_DEBUG, "%d\n", fh->h); } } if (wfds) { - for (i = 0; i < bwrite.fd_count; i++) + LOG (GNUNET_ERROR_TYPE_DEBUG, "wfds:\n"); + for (i = 0; i < wfds->sds.fd_count; i++) { - if (bwrite.fd_array[i] != 0) - LOG (GNUNET_ERROR_TYPE_DEBUG, "FD 0x%x is %s in wfds\n", - bwrite.fd_array[i], - (SAFE_FD_ISSET (bwrite.fd_array[i], rfds)) ? "SET" : "NOT SET"); + LOG (GNUNET_ERROR_TYPE_DEBUG, "%d\n", wfds->sds.fd_array[i]); } } if (efds) { - for (i = 0; i < bexcept.fd_count; i++) + LOG (GNUNET_ERROR_TYPE_DEBUG, "efds:\n"); + for (i = 0; i < efds->sds.fd_count; i++) { - if (bexcept.fd_array[i] != 0) - LOG (GNUNET_ERROR_TYPE_DEBUG, "FD 0x%x is %s in efds\n", - bexcept.fd_array[i], - (SAFE_FD_ISSET (bexcept.fd_array[i], rfds)) ? "SET" : "NOT SET"); + LOG (GNUNET_ERROR_TYPE_DEBUG, "%d\n", efds->sds.fd_array[i]); } } LOG (GNUNET_ERROR_TYPE_DEBUG, "Returning %d or 0\n", retcode);