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- /*
- This file is part of GNUnet.
- Copyright (C) 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
- by the Free Software Foundation; either version 3, 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 cadet/cadet_test_lib.c
- * @author Bartlomiej Polot
- * @brief library for writing CADET tests
- */
- #include "platform.h"
- #include "gnunet_util_lib.h"
- #include "cadet_test_lib.h"
- #include "gnunet_cadet_service.h"
- /**
- * Test context for a CADET Test.
- */
- struct GNUNET_CADET_TEST_Context
- {
- /**
- * Array of running peers.
- */
- struct GNUNET_TESTBED_Peer **peers;
- /**
- * Array of handles to the CADET for each peer.
- */
- struct GNUNET_CADET_Handle **cadetes;
- /**
- * Operation associated with the connection to the CADET.
- */
- struct GNUNET_TESTBED_Operation **ops;
- /**
- * Main function of the test to run once all CADETs are available.
- */
- GNUNET_CADET_TEST_AppMain app_main;
- /**
- * Closure for 'app_main'.
- */
- void *app_main_cls;
- /**
- * Number of peers running, size of the arrays above.
- */
- unsigned int num_peers;
- /**
- * Handler for incoming tunnels.
- */
- GNUNET_CADET_InboundChannelNotificationHandler *new_channel;
- /**
- * Cleaner for destroyed incoming tunnels.
- */
- GNUNET_CADET_ChannelEndHandler *cleaner;
- /**
- * Message handlers.
- */
- struct GNUNET_CADET_MessageHandler* handlers;
- /**
- * Application ports.
- */
- const uint32_t *ports;
- };
- /**
- * Context for a cadet adapter callback.
- */
- struct GNUNET_CADET_TEST_AdapterContext
- {
- /**
- * Peer number for the particular peer.
- */
- unsigned int peer;
- /**
- * General context.
- */
- struct GNUNET_CADET_TEST_Context *ctx;
- };
- /**
- * Adapter function called to establish a connection to
- * the CADET service.
- *
- * @param cls closure
- * @param cfg configuration of the peer to connect to; will be available until
- * GNUNET_TESTBED_operation_done() is called on the operation returned
- * from GNUNET_TESTBED_service_connect()
- * @return service handle to return in 'op_result', NULL on error
- */
- static void *
- cadet_connect_adapter (void *cls,
- const struct GNUNET_CONFIGURATION_Handle *cfg)
- {
- struct GNUNET_CADET_TEST_AdapterContext *actx = cls;
- struct GNUNET_CADET_TEST_Context *ctx = actx->ctx;
- struct GNUNET_CADET_Handle *h;
- h = GNUNET_CADET_connect (cfg,
- (void *) (long) actx->peer,
- ctx->new_channel,
- ctx->cleaner,
- ctx->handlers,
- ctx->ports);
- return h;
- }
- /**
- * Adapter function called to destroy a connection to
- * the CADET service.
- *
- * @param cls closure
- * @param op_result service handle returned from the connect adapter
- */
- static void
- cadet_disconnect_adapter (void *cls,
- void *op_result)
- {
- struct GNUNET_CADET_Handle *cadet = op_result;
- struct GNUNET_CADET_TEST_AdapterContext *actx = cls;
- GNUNET_free (actx);
- GNUNET_CADET_disconnect (cadet);
- }
- /**
- * Callback to be called when a service connect operation is completed.
- *
- * @param cls The callback closure from functions generating an operation.
- * @param op The operation that has been finished.
- * @param ca_result The service handle returned from
- * GNUNET_TESTBED_ConnectAdapter() (cadet handle).
- * @param emsg Error message in case the operation has failed.
- * NULL if operation has executed successfully.
- */
- static void
- cadet_connect_cb (void *cls,
- struct GNUNET_TESTBED_Operation *op,
- void *ca_result,
- const char *emsg)
- {
- struct GNUNET_CADET_TEST_Context *ctx = cls;
- unsigned int i;
- if (NULL != emsg)
- {
- fprintf (stderr, "Failed to connect to CADET service: %s\n",
- emsg);
- GNUNET_SCHEDULER_shutdown ();
- return;
- }
- for (i = 0; i < ctx->num_peers; i++)
- if (op == ctx->ops[i])
- {
- ctx->cadetes[i] = ca_result;
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, "...cadet %u connected\n", i);
- }
- for (i = 0; i < ctx->num_peers; i++)
- if (NULL == ctx->cadetes[i])
- return; /* still some CADET connections missing */
- /* all CADET connections ready! */
- ctx->app_main (ctx->app_main_cls,
- ctx,
- ctx->num_peers,
- ctx->peers,
- ctx->cadetes);
- }
- void
- GNUNET_CADET_TEST_cleanup (struct GNUNET_CADET_TEST_Context *ctx)
- {
- unsigned int i;
- for (i = 0; i < ctx->num_peers; i++)
- {
- GNUNET_assert (NULL != ctx->ops[i]);
- GNUNET_TESTBED_operation_done (ctx->ops[i]);
- ctx->ops[i] = NULL;
- }
- GNUNET_free (ctx->ops);
- GNUNET_free (ctx->cadetes);
- GNUNET_free (ctx);
- GNUNET_SCHEDULER_shutdown ();
- }
- /**
- * Callback run when the testbed is ready (peers running and connected to
- * each other)
- *
- * @param cls Closure (context).
- * @param h the run handle
- * @param num_peers Number of peers that are running.
- * @param peers Handles to each one of the @c num_peers peers.
- * @param links_succeeded the number of overlay link connection attempts that
- * succeeded
- * @param links_failed the number of overlay link connection attempts that
- * failed
- */
- static void
- cadet_test_run (void *cls,
- struct GNUNET_TESTBED_RunHandle *h,
- unsigned int num_peers,
- struct GNUNET_TESTBED_Peer **peers,
- unsigned int links_succeeded,
- unsigned int links_failed)
- {
- struct GNUNET_CADET_TEST_Context *ctx = cls;
- unsigned int i;
- if (num_peers != ctx->num_peers)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Peers started %u/%u, ending\n",
- num_peers, ctx->num_peers);
- exit (1);
- }
- ctx->peers = peers;
- for (i = 0; i < num_peers; i++)
- {
- struct GNUNET_CADET_TEST_AdapterContext *newctx;
- newctx = GNUNET_new (struct GNUNET_CADET_TEST_AdapterContext);
- newctx->peer = i;
- newctx->ctx = ctx;
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Connecting to cadet %u\n", i);
- ctx->ops[i] = GNUNET_TESTBED_service_connect (ctx,
- peers[i],
- "cadet",
- &cadet_connect_cb,
- ctx,
- &cadet_connect_adapter,
- &cadet_disconnect_adapter,
- newctx);
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, "op handle %p\n", ctx->ops[i]);
- }
- }
- void
- GNUNET_CADET_TEST_run (const char *testname,
- const char *cfgname,
- unsigned int num_peers,
- GNUNET_CADET_TEST_AppMain tmain,
- void *tmain_cls,
- GNUNET_CADET_InboundChannelNotificationHandler new_channel,
- GNUNET_CADET_ChannelEndHandler cleaner,
- struct GNUNET_CADET_MessageHandler* handlers,
- const uint32_t *ports)
- {
- struct GNUNET_CADET_TEST_Context *ctx;
- ctx = GNUNET_new (struct GNUNET_CADET_TEST_Context);
- ctx->num_peers = num_peers;
- ctx->ops = GNUNET_malloc (num_peers * sizeof (struct GNUNET_TESTBED_Operation *));
- ctx->cadetes = GNUNET_malloc (num_peers * sizeof (struct GNUNET_CADET_Handle *));
- ctx->app_main = tmain;
- ctx->app_main_cls = tmain_cls;
- ctx->new_channel = new_channel;
- ctx->cleaner = cleaner;
- ctx->handlers = handlers;
- ctx->ports = ports;
- GNUNET_TESTBED_test_run (testname,
- cfgname,
- num_peers,
- 0LL, NULL, NULL,
- &cadet_test_run, ctx);
- }
- /* end of cadet_test_lib.c */
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