/*
This file is part of GNUnet.
- (C) 2009, 2010 Christian Grothoff (and other contributing authors)
+ (C) 2009, 2010, 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
};
-
/**
* Context for handling the shutdown of a service.
*/
*/
void *cont_cls;
+ /**
+ * Handle for transmission request.
+ */
+ struct GNUNET_CLIENT_TransmitHandle *th;
+
/**
* Result of the operation
*/
{
if (shutdown_ctx->cont != NULL)
{
- if (shutdown_ctx->confirmed == GNUNET_ARM_PROCESS_SHUTDOWN)
- {
- /* shutdown is now complete, as we waited for the network disconnect... */
- shutdown_ctx->cont (shutdown_ctx->cont_cls, GNUNET_ARM_PROCESS_DOWN);
- }
- else
- {
- /* communication error */
- shutdown_ctx->cont (shutdown_ctx->cont_cls, GNUNET_ARM_PROCESS_COMMUNICATION_ERROR);
- }
+ /* shutdown is now complete, as we waited for the network disconnect... */
+ shutdown_ctx->cont (shutdown_ctx->cont_cls, GNUNET_ARM_PROCESS_DOWN);
}
GNUNET_SCHEDULER_cancel (shutdown_ctx->cancel_task);
- GNUNET_CLIENT_disconnect (shutdown_ctx->sock, GNUNET_NO);
+ GNUNET_CLIENT_disconnect (shutdown_ctx->sock);
GNUNET_free (shutdown_ctx);
return;
}
/* ARM is not shutting down, well, report the error and be done with it... */
shutdown_ctx->cont (shutdown_ctx->cont_cls, shutdown_ctx->confirmed);
GNUNET_SCHEDULER_cancel (shutdown_ctx->cancel_task);
- GNUNET_CLIENT_disconnect (shutdown_ctx->sock, GNUNET_NO);
+ GNUNET_CLIENT_disconnect (shutdown_ctx->sock);
GNUNET_free (shutdown_ctx);
return;
}
struct ShutdownContext *shutdown_ctx = cls;
shutdown_ctx->cont (shutdown_ctx->cont_cls, GNUNET_ARM_PROCESS_COMMUNICATION_TIMEOUT);
- GNUNET_CLIENT_disconnect (shutdown_ctx->sock, GNUNET_NO);
+ GNUNET_CLIENT_disconnect (shutdown_ctx->sock);
GNUNET_free (shutdown_ctx);
}
static size_t
write_shutdown (void *cls, size_t size, void *buf)
{
- struct GNUNET_MessageHeader *msg;
struct ShutdownContext *shutdown_ctx = cls;
+ struct GNUNET_MessageHeader *msg;
+ shutdown_ctx->th = NULL;
if (size < sizeof (struct GNUNET_MessageHeader))
- {
- LOG (GNUNET_ERROR_TYPE_WARNING,
- _("Failed to transmit shutdown request to client.\n"));
- shutdown_ctx->cont (shutdown_ctx->cont_cls, GNUNET_ARM_PROCESS_COMMUNICATION_ERROR);
- GNUNET_CLIENT_disconnect (shutdown_ctx->sock, GNUNET_NO);
- GNUNET_free (shutdown_ctx);
- return 0; /* client disconnected */
- }
-
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ _("Failed to transmit shutdown request to client.\n"));
+ shutdown_ctx->cont (shutdown_ctx->cont_cls, GNUNET_ARM_PROCESS_COMMUNICATION_ERROR);
+ GNUNET_CLIENT_disconnect (shutdown_ctx->sock);
+ GNUNET_free (shutdown_ctx);
+ return 0; /* client disconnected */
+ }
GNUNET_CLIENT_receive (shutdown_ctx->sock, &service_shutdown_handler,
shutdown_ctx, GNUNET_TIME_UNIT_FOREVER_REL);
shutdown_ctx->cancel_task =
shutdown_ctx->sock = sock;
shutdown_ctx->timeout = GNUNET_TIME_relative_to_absolute (timeout);
shutdown_ctx->confirmed = GNUNET_ARM_PROCESS_COMMUNICATION_ERROR;
- /* FIXME: store return value? */
- GNUNET_CLIENT_notify_transmit_ready (sock,
- sizeof (struct GNUNET_MessageHeader),
- timeout, GNUNET_YES, &write_shutdown,
- shutdown_ctx);
+ shutdown_ctx->th = GNUNET_CLIENT_notify_transmit_ready (sock,
+ sizeof (struct GNUNET_MessageHeader),
+ timeout, GNUNET_NO, &write_shutdown,
+ shutdown_ctx);
}
GNUNET_ARM_disconnect (struct GNUNET_ARM_Handle *h)
{
if (h->client != NULL)
- GNUNET_CLIENT_disconnect (h->client, GNUNET_NO);
+ GNUNET_CLIENT_disconnect (h->client);
GNUNET_CONFIGURATION_destroy (h->cfg);
GNUNET_free (h);
}
char *lopostfix;
if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_PREREQ_DONE))
- {
-#if DEBUG_ARM
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Looks like `%s' is already running.\n",
- "gnunet-service-arm");
-#endif
- /* arm is running! */
- if (pos->callback != NULL)
- pos->callback (pos->cls, GNUNET_ARM_PROCESS_ALREADY_RUNNING);
- GNUNET_free (pos);
- return;
- }
-#if DEBUG_ARM
+ {
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "Looks like `%s' is already running.\n",
+ "gnunet-service-arm");
+ /* arm is running! */
+ if (pos->callback != NULL)
+ pos->callback (pos->cls, GNUNET_ARM_PROCESS_ALREADY_RUNNING);
+ GNUNET_free (pos);
+ return;
+ }
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Looks like `%s' is not running, will start it.\n",
"gnunet-service-arm");
-#endif
if (GNUNET_OK !=
GNUNET_CONFIGURATION_get_value_string (pos->h->cfg, "arm", "PREFIX",
&loprefix))
if (GNUNET_OK !=
GNUNET_CONFIGURATION_get_value_string (pos->h->cfg, "arm", "BINARY",
&binary))
- {
- LOG (GNUNET_ERROR_TYPE_WARNING,
- _
- ("Configuration failes to specify option `%s' in section `%s'!\n"),
- "BINARY", "arm");
- if (pos->callback != NULL)
- pos->callback (pos->cls, GNUNET_ARM_PROCESS_UNKNOWN);
- GNUNET_free (pos);
- GNUNET_free (loprefix);
- GNUNET_free (lopostfix);
- return;
- }
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ _
+ ("Configuration failes to specify option `%s' in section `%s'!\n"),
+ "BINARY", "arm");
+ if (pos->callback != NULL)
+ pos->callback (pos->cls, GNUNET_ARM_PROCESS_UNKNOWN);
+ GNUNET_free (pos);
+ GNUNET_free (loprefix);
+ GNUNET_free (lopostfix);
+ return;
+ }
if (GNUNET_OK !=
GNUNET_CONFIGURATION_get_value_filename (pos->h->cfg, "arm", "CONFIG",
&config))
- {
- LOG (GNUNET_ERROR_TYPE_WARNING,
- _("Configuration fails to specify option `%s' in section `%s'!\n"),
- "CONFIG", "arm");
- if (pos->callback != NULL)
- pos->callback (pos->cls, GNUNET_ARM_PROCESS_UNKNOWN);
- GNUNET_free (binary);
- GNUNET_free (pos);
- GNUNET_free (loprefix);
- GNUNET_free (lopostfix);
- return;
- }
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ _("Configuration fails to specify option `%s' in section `%s'!\n"),
+ "CONFIG", "arm");
+ if (pos->callback != NULL)
+ pos->callback (pos->cls, GNUNET_ARM_PROCESS_UNKNOWN);
+ GNUNET_free (binary);
+ GNUNET_free (pos);
+ GNUNET_free (loprefix);
+ GNUNET_free (lopostfix);
+ return;
+ }
if ((GNUNET_YES ==
GNUNET_CONFIGURATION_have_value (pos->h->cfg, "TESTING", "WEAKRANDOM"))
&& (GNUNET_YES ==
&& (GNUNET_NO ==
GNUNET_CONFIGURATION_have_value (pos->h->cfg, "TESTING",
"HOSTFILE")))
- {
- /* Means we are ONLY running locally */
- /* we're clearly running a test, don't daemonize */
- proc = do_start_process (GNUNET_NO,
- NULL, loprefix, binary, "-c", config,
+ {
+ /* Means we are ONLY running locally */
+ /* we're clearly running a test, don't daemonize */
+ proc = do_start_process (GNUNET_NO,
+ NULL, loprefix, binary, "-c", config,
#if DEBUG_ARM
- "-L", "DEBUG",
+ "-L", "DEBUG",
#endif
- /* no daemonization! */
- lopostfix, NULL);
- }
+ /* no daemonization! */
+ lopostfix, NULL);
+ }
else
- {
- proc = do_start_process (GNUNET_NO,
- NULL, loprefix, binary, "-c", config,
+ {
+ proc = do_start_process (GNUNET_NO,
+ NULL, loprefix, binary, "-c", config,
#if DEBUG_ARM
- "-L", "DEBUG",
+ "-L", "DEBUG",
#endif
- "-d", lopostfix, NULL);
- }
+ "-d", lopostfix, NULL);
+ }
GNUNET_free (binary);
GNUNET_free (config);
GNUNET_free (loprefix);
if ((msg == NULL) ||
(ntohs (msg->size) != sizeof (struct GNUNET_ARM_ResultMessage)))
- {
- LOG (GNUNET_ERROR_TYPE_WARNING,
- _
- ("Error receiving response to `%s' request from ARM for service `%s'\n"),
- (sc->type == GNUNET_MESSAGE_TYPE_ARM_START) ? "START" : "STOP",
- (const char *) &sc[1]);
- GNUNET_CLIENT_disconnect (sc->h->client, GNUNET_NO);
- sc->h->client = GNUNET_CLIENT_connect ("arm", sc->h->cfg);
- GNUNET_assert (NULL != sc->h->client);
- if (sc->callback != NULL)
- sc->callback (sc->cls, GNUNET_ARM_PROCESS_COMMUNICATION_ERROR);
- GNUNET_free (sc);
- return;
- }
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ _
+ ("Error receiving response to `%s' request from ARM for service `%s'\n"),
+ (sc->type == GNUNET_MESSAGE_TYPE_ARM_START) ? "START" : "STOP",
+ (const char *) &sc[1]);
+ GNUNET_CLIENT_disconnect (sc->h->client);
+ sc->h->client = GNUNET_CLIENT_connect ("arm", sc->h->cfg);
+ GNUNET_assert (NULL != sc->h->client);
+ if (sc->callback != NULL)
+ sc->callback (sc->cls, GNUNET_ARM_PROCESS_COMMUNICATION_ERROR);
+ GNUNET_free (sc);
+ return;
+ }
res = (const struct GNUNET_ARM_ResultMessage *) msg;
-#if DEBUG_ARM
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Received response from ARM for service `%s': %u\n",
(const char *) &sc[1], ntohs (msg->type));
-#endif
status = (enum GNUNET_ARM_ProcessStatus) ntohl (res->status);
if (sc->callback != NULL)
sc->callback (sc->cls, status);
slen = strlen (service_name) + 1;
if (slen + sizeof (struct GNUNET_MessageHeader) >=
GNUNET_SERVER_MAX_MESSAGE_SIZE)
- {
- GNUNET_break (0);
- if (cb != NULL)
- cb (cb_cls, GNUNET_NO);
- return;
- }
-#if DEBUG_ARM
+ {
+ GNUNET_break (0);
+ if (cb != NULL)
+ cb (cb_cls, GNUNET_NO);
+ return;
+ }
LOG (GNUNET_ERROR_TYPE_DEBUG,
(type ==
GNUNET_MESSAGE_TYPE_ARM_START) ?
_("Requesting start of service `%s'.\n") :
_("Requesting termination of service `%s'.\n"), service_name);
-#endif
sctx = GNUNET_malloc (sizeof (struct RequestContext) + slen);
sctx->h = h;
sctx->callback = cb;
GNUNET_TIME_absolute_get_remaining
(sctx->timeout), GNUNET_YES,
&handle_response, sctx))
- {
- LOG (GNUNET_ERROR_TYPE_WARNING,
- (type ==
- GNUNET_MESSAGE_TYPE_ARM_START) ?
- _("Error while trying to transmit request to start `%s' to ARM\n")
- :
- _("Error while trying to transmit request to stop `%s' to ARM\n"),
- (const char *) &service_name);
- if (cb != NULL)
- cb (cb_cls, GNUNET_SYSERR);
- GNUNET_free (sctx);
- GNUNET_free (msg);
- return;
- }
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ (type ==
+ GNUNET_MESSAGE_TYPE_ARM_START)
+ ? _("Error while trying to transmit request to start `%s' to ARM\n")
+ : _("Error while trying to transmit request to stop `%s' to ARM\n"),
+ (const char *) &service_name);
+ if (cb != NULL)
+ cb (cb_cls, GNUNET_SYSERR);
+ GNUNET_free (sctx);
+ GNUNET_free (msg);
+ return;
+ }
GNUNET_free (msg);
}
struct GNUNET_CLIENT_Connection *client;
size_t slen;
-#if DEBUG_ARM
LOG (GNUNET_ERROR_TYPE_DEBUG,
_("Asked to start service `%s' within %llu ms\n"), service_name,
(unsigned long long) timeout.rel_value);
-#endif
if (0 == strcasecmp ("arm", service_name))
- {
- slen = strlen ("arm") + 1;
- sctx = GNUNET_malloc (sizeof (struct RequestContext) + slen);
- sctx->h = h;
- sctx->callback = cb;
- sctx->cls = cb_cls;
- sctx->timeout = GNUNET_TIME_relative_to_absolute (timeout);
- memcpy (&sctx[1], service_name, slen);
- GNUNET_CLIENT_service_test ("arm", h->cfg, timeout, &arm_service_report,
- sctx);
- return;
- }
+ {
+ slen = strlen ("arm") + 1;
+ sctx = GNUNET_malloc (sizeof (struct RequestContext) + slen);
+ sctx->h = h;
+ sctx->callback = cb;
+ sctx->cls = cb_cls;
+ sctx->timeout = GNUNET_TIME_relative_to_absolute (timeout);
+ memcpy (&sctx[1], service_name, slen);
+ GNUNET_CLIENT_service_test ("arm", h->cfg, timeout, &arm_service_report,
+ sctx);
+ return;
+ }
if (h->client == NULL)
+ {
+ client = GNUNET_CLIENT_connect ("arm", h->cfg);
+ if (client == NULL)
{
- client = GNUNET_CLIENT_connect ("arm", h->cfg);
- if (client == NULL)
- {
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "arm_api, GNUNET_CLIENT_connect returned NULL\n");
- cb (cb_cls, GNUNET_ARM_PROCESS_COMMUNICATION_ERROR);
- return;
- }
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "arm_api, GNUNET_CLIENT_connect returned non-NULL\n");
- h->client = client;
+ "arm_api, GNUNET_CLIENT_connect returned NULL\n");
+ cb (cb_cls, GNUNET_ARM_PROCESS_COMMUNICATION_ERROR);
+ return;
}
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "arm_api, GNUNET_CLIENT_connect returned non-NULL\n");
+ h->client = client;
+ }
LOG (GNUNET_ERROR_TYPE_DEBUG, "arm_api, h->client non-NULL\n");
change_service (h, service_name, timeout, cb, cb_cls,
GNUNET_MESSAGE_TYPE_ARM_START);
LOG (GNUNET_ERROR_TYPE_INFO, _("Stopping service `%s' within %llu ms\n"),
service_name, (unsigned long long) timeout.rel_value);
if (h->client == NULL)
+ {
+ client = GNUNET_CLIENT_connect ("arm", h->cfg);
+ if (client == NULL)
{
- client = GNUNET_CLIENT_connect ("arm", h->cfg);
- if (client == NULL)
- {
- cb (cb_cls, GNUNET_SYSERR);
- return;
- }
- h->client = client;
- }
- if (0 == strcasecmp ("arm", service_name))
- {
- arm_shutdown_ctx = GNUNET_malloc (sizeof (struct ARM_ShutdownContext));
- arm_shutdown_ctx->cb = cb;
- arm_shutdown_ctx->cb_cls = cb_cls;
- arm_service_shutdown (h->client, timeout, &arm_shutdown_callback,
- arm_shutdown_ctx);
- h->client = NULL;
+ cb (cb_cls, GNUNET_SYSERR);
return;
}
+ h->client = client;
+ }
+ if (0 == strcasecmp ("arm", service_name))
+ {
+ arm_shutdown_ctx = GNUNET_malloc (sizeof (struct ARM_ShutdownContext));
+ arm_shutdown_ctx->cb = cb;
+ arm_shutdown_ctx->cb_cls = cb_cls;
+ arm_service_shutdown (h->client, timeout, &arm_shutdown_callback,
+ arm_shutdown_ctx);
+ h->client = NULL;
+ return;
+ }
change_service (h, service_name, timeout, cb, cb_cls,
GNUNET_MESSAGE_TYPE_ARM_STOP);
}
+/**
+ * Internal state for a list request with ARM.
+ */
+struct ListRequestContext
+{
+
+ /**
+ * Pointer to our handle with ARM.
+ */
+ struct GNUNET_ARM_Handle *h;
+
+ /**
+ * Function to call with a status code for the requested operation.
+ */
+ GNUNET_ARM_List_Callback callback;
+
+ /**
+ * Closure for "callback".
+ */
+ void *cls;
+
+ /**
+ * Timeout for the operation.
+ */
+ struct GNUNET_TIME_Absolute timeout;
+};
+
+
+/**
+ * Process a response from ARM for the list request.
+ *
+ * @param cls the list request context
+ * @param msg the response
+ */
+static void
+handle_list_response (void *cls, const struct GNUNET_MessageHeader *msg)
+{
+ struct ListRequestContext *sc = cls;
+ const struct GNUNET_ARM_ListResultMessage *res;
+ const char *pos;
+ uint16_t size_check;
+ uint16_t rcount;
+ uint16_t msize;
+
+ if (NULL == msg)
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ "Error receiving response to LIST request from ARM\n");
+ GNUNET_CLIENT_disconnect (sc->h->client);
+ sc->h->client = GNUNET_CLIENT_connect ("arm", sc->h->cfg);
+ GNUNET_assert (NULL != sc->h->client);
+ if (sc->callback != NULL)
+ sc->callback (sc->cls, GNUNET_ARM_PROCESS_COMMUNICATION_ERROR, 0, NULL);
+ GNUNET_free (sc);
+ return;
+ }
+
+ if (NULL == sc->callback)
+ {
+ GNUNET_break (0);
+ GNUNET_free (sc);
+ return;
+ }
+ msize = ntohs (msg->size);
+ if ( (msize < sizeof ( struct GNUNET_ARM_ListResultMessage)) ||
+ (ntohs (msg->type) != GNUNET_MESSAGE_TYPE_ARM_LIST_RESULT) )
+ {
+ GNUNET_break (0);
+ sc->callback (sc->cls, GNUNET_NO, 0, NULL);
+ GNUNET_free (sc);
+ return;
+ }
+ size_check = 0;
+ res = (const struct GNUNET_ARM_ListResultMessage *) msg;
+ rcount = ntohs (res->count);
+ {
+ const char *list[rcount];
+ unsigned int i;
+
+ pos = (const char *)&res[1];
+ for (i=0; i<rcount; i++)
+ {
+ const char *end = memchr (pos, 0, msize - size_check);
+ if (NULL == end)
+ {
+ GNUNET_break (0);
+ sc->callback (sc->cls, GNUNET_NO, 0, NULL);
+ GNUNET_free (sc);
+ return;
+ }
+ list[i] = pos;
+ size_check += (end - pos) + 1;
+ pos = end + 1;
+ }
+ sc->callback (sc->cls, GNUNET_YES, rcount, list);
+ }
+ GNUNET_free (sc);
+}
+
+
+/**
+ * List all running services.
+ *
+ * @param h handle to ARM
+ * @param timeout how long to wait before failing for good
+ * @param cb callback to invoke when service is ready
+ * @param cb_cls closure for callback
+ */
+void
+GNUNET_ARM_list_running_services (struct GNUNET_ARM_Handle *h,
+ struct GNUNET_TIME_Relative timeout,
+ GNUNET_ARM_List_Callback cb, void *cb_cls)
+{
+ struct ListRequestContext *sctx;
+ struct GNUNET_MessageHeader msg;
+ struct GNUNET_CLIENT_Connection *client;
+
+ if (h->client == NULL)
+ {
+ client = GNUNET_CLIENT_connect ("arm", h->cfg);
+ if (client == NULL)
+ {
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "arm_api, GNUNET_CLIENT_connect returned NULL\n");
+ cb (cb_cls, GNUNET_ARM_PROCESS_COMMUNICATION_ERROR, 0, NULL);
+ return;
+ }
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "arm_api, GNUNET_CLIENT_connect returned non-NULL\n");
+ h->client = client;
+ }
+
+ sctx = GNUNET_malloc (sizeof (struct RequestContext));
+ sctx->h = h;
+ sctx->callback = cb;
+ sctx->cls = cb_cls;
+ sctx->timeout = GNUNET_TIME_relative_to_absolute (timeout);
+ msg.size = htons (sizeof (struct GNUNET_MessageHeader));
+ msg.type = htons (GNUNET_MESSAGE_TYPE_ARM_LIST);
+
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Requesting LIST from ARM service with timeout: %llu ms\n",
+ (unsigned long long)timeout.rel_value);
+
+ if (GNUNET_OK !=
+ GNUNET_CLIENT_transmit_and_get_response (sctx->h->client,
+ &msg,
+ GNUNET_TIME_absolute_get_remaining
+ (sctx->timeout),
+ GNUNET_YES,
+ &handle_list_response,
+ sctx))
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ "Error while trying to transmit request to list services to ARM\n");
+ if (cb != NULL)
+ cb (cb_cls, GNUNET_SYSERR, 0, NULL);
+ GNUNET_free (sctx);
+ return;
+ }
+}
+
/* end of arm_api.c */
projects / oweals / gnunet.git / blobdiff