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Diffstat (limited to 'src/stream/test_stream_2peers.c')
| -rw-r--r-- | src/stream/test_stream_2peers.c | 560 |
1 files changed, 560 insertions, 0 deletions
diff --git a/src/stream/test_stream_2peers.c b/src/stream/test_stream_2peers.c new file mode 100644 index 0000000..1fdc0ee --- /dev/null +++ b/src/stream/test_stream_2peers.c @@ -0,0 +1,560 @@ +/* + This file is part of GNUnet. + (C) 2011, 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 stream/test_stream_2peers.c + * @brief Stream API testing between 2 peers using testing API + * @author Sree Harsha Totakura + */ + +#include <string.h> + +#include "platform.h" +#include "gnunet_util_lib.h" +#include "gnunet_mesh_service.h" +#include "gnunet_stream_lib.h" +#include "gnunet_testing_lib.h" + +#define VERBOSE 1 + +/** + * Number of peers + */ +#define NUM_PEERS 2 + +/** + * Structure for holding peer's sockets and IO Handles + */ +struct PeerData +{ + /** + * Peer's stream socket + */ + struct GNUNET_STREAM_Socket *socket; + + /** + * Peer's io write handle + */ + struct GNUNET_STREAM_IOWriteHandle *io_write_handle; + + /** + * Peer's io read handle + */ + struct GNUNET_STREAM_IOReadHandle *io_read_handle; + + /** + * Peer's shutdown handle + */ + struct GNUNET_STREAM_ShutdownHandle *shutdown_handle; + + /** + * Our Peer id + */ + struct GNUNET_PeerIdentity our_id; + + /** + * Bytes the peer has written + */ + unsigned int bytes_wrote; + + /** + * Byte the peer has read + */ + unsigned int bytes_read; +}; + +/** + * The current peer group + */ +static struct GNUNET_TESTING_PeerGroup *pg; + +/** + * Peer 1 daemon + */ +static struct GNUNET_TESTING_Daemon *d1; + +/** + * Peer 2 daemon + */ +static struct GNUNET_TESTING_Daemon *d2; + +static struct PeerData peer1; +static struct PeerData peer2; +static struct GNUNET_STREAM_ListenSocket *peer2_listen_socket; +static struct GNUNET_CONFIGURATION_Handle *config; + +static GNUNET_SCHEDULER_TaskIdentifier abort_task; + +static char *data = "ABCD"; +static int result; + +static int writing_success; +static int reading_success; + + +/** + * Input processor + * + * @param cls the closure from GNUNET_STREAM_write/read + * @param status the status of the stream at the time this function is called + * @param data traffic from the other side + * @param size the number of bytes available in data read + * @return number of bytes of processed from 'data' (any data remaining should be + * given to the next time the read processor is called). + */ +static size_t +input_processor (void *cls, + enum GNUNET_STREAM_Status status, + const void *input_data, + size_t size); + +/** + * Task for calling STREAM_read + * + * @param cls the peer data entity + * @param tc the task context + */ +static void +stream_read_task (void *cls, + const struct GNUNET_SCHEDULER_TaskContext *tc) +{ + struct PeerData *peer = cls; + + peer->io_read_handle = GNUNET_STREAM_read (peer->socket, + GNUNET_TIME_relative_multiply + (GNUNET_TIME_UNIT_SECONDS, 5), + &input_processor, + peer); + GNUNET_assert (NULL != peer->io_read_handle); +} + +/** + * The write completion function; called upon writing some data to stream or + * upon error + * + * @param cls the closure from GNUNET_STREAM_write/read + * @param status the status of the stream at the time this function is called + * @param size the number of bytes read or written + */ +static void +write_completion (void *cls, + enum GNUNET_STREAM_Status status, + size_t size); + + +/** + * Task for calling STREAM_write + * + * @param cls the peer data entity + * @param tc the task context + */ +static void +stream_write_task (void *cls, + const struct GNUNET_SCHEDULER_TaskContext *tc) +{ + struct PeerData *peer = cls; + + peer->io_write_handle = + GNUNET_STREAM_write (peer->socket, + (void *) data, + strlen(data) - peer->bytes_wrote, + GNUNET_TIME_relative_multiply + (GNUNET_TIME_UNIT_SECONDS, 5), + &write_completion, + peer); + + GNUNET_assert (NULL != peer->io_write_handle); + } + + +/** + * Check whether peers successfully shut down. + */ +static void +peergroup_shutdown_callback (void *cls, const char *emsg) +{ + if (emsg != NULL) + { + GNUNET_log (GNUNET_ERROR_TYPE_WARNING, + "Shutdown of peers failed!\n"); + } + else + { + GNUNET_log (GNUNET_ERROR_TYPE_INFO, + "All peers successfully shut down!\n"); + } + GNUNET_CONFIGURATION_destroy (config); +} + + +/** + * Close sockets and stop testing deamons nicely + */ +static void +do_close (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) +{ + if (NULL != peer1.socket) + GNUNET_STREAM_close (peer1.socket); + if (NULL != peer2.socket) + GNUNET_STREAM_close (peer2.socket); + if (NULL != peer2_listen_socket) + GNUNET_STREAM_listen_close (peer2_listen_socket); + + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test: shutdown\n"); + if (0 != abort_task) + { + GNUNET_SCHEDULER_cancel (abort_task); + } + + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test: Wait\n"); + + GNUNET_TESTING_daemons_stop (pg, + GNUNET_TIME_relative_multiply + (GNUNET_TIME_UNIT_SECONDS, 5), + &peergroup_shutdown_callback, + NULL); +} + + +/** + * Completion callback for shutdown + * + * @param cls the closure from GNUNET_STREAM_shutdown call + * @param operation the operation that was shutdown (SHUT_RD, SHUT_WR, + * SHUT_RDWR) + */ +static void +shutdown_completion (void *cls, + int operation) +{ + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "STREAM shutdown successful\n"); + GNUNET_SCHEDULER_add_now (&do_close, + cls); +} + + + +/** + * Shutdown sockets gracefully + */ +static void +do_shutdown (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) +{ + peer1.shutdown_handle = GNUNET_STREAM_shutdown (peer1.socket, + SHUT_RDWR, + &shutdown_completion, + cls); +} + + +/** + * Something went wrong and timed out. Kill everything and set error flag + */ +static void +do_abort (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) +{ + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test: ABORT\n"); + result = GNUNET_SYSERR; + abort_task = 0; + do_close (cls, tc); +} + + +/** + * The write completion function; called upon writing some data to stream or + * upon error + * + * @param cls the closure from GNUNET_STREAM_write/read + * @param status the status of the stream at the time this function is called + * @param size the number of bytes read or written + */ +static void +write_completion (void *cls, + enum GNUNET_STREAM_Status status, + size_t size) +{ + struct PeerData *peer=cls; + + GNUNET_assert (GNUNET_STREAM_OK == status); + GNUNET_assert (size <= strlen (data)); + peer->bytes_wrote += size; + + if (peer->bytes_wrote < strlen(data)) /* Have more data to send */ + { + GNUNET_SCHEDULER_add_now (&stream_write_task, peer); + } + else + { + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "Writing completed\n"); + + if (&peer1 == peer) /* Peer1 has finished writing; should read now */ + { + peer->bytes_read = 0; + GNUNET_SCHEDULER_add_now (&stream_read_task, peer); + } + else + { + writing_success = GNUNET_YES; + if (GNUNET_YES == reading_success) + GNUNET_SCHEDULER_add_now (&do_shutdown, NULL); + } + } +} + + +/** + * Function executed after stream has been established + * + * @param cls the closure from GNUNET_STREAM_open + * @param socket socket to use to communicate with the other side (read/write) + */ +static void +stream_open_cb (void *cls, + struct GNUNET_STREAM_Socket *socket) +{ + struct PeerData *peer=cls; + + GNUNET_assert (&peer1 == peer); + GNUNET_assert (socket == peer1.socket); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "%s: Stream established from peer1\n", + GNUNET_i2s (&peer1.our_id)); + peer->bytes_wrote = 0; + GNUNET_SCHEDULER_add_now (&stream_write_task, peer); +} + + +/** + * Input processor + * + * @param cls the closure from GNUNET_STREAM_write/read + * @param status the status of the stream at the time this function is called + * @param data traffic from the other side + * @param size the number of bytes available in data read + * @return number of bytes of processed from 'data' (any data remaining should be + * given to the next time the read processor is called). + */ +static size_t +input_processor (void *cls, + enum GNUNET_STREAM_Status status, + const void *input_data, + size_t size) +{ + struct PeerData *peer; + + peer = (struct PeerData *) cls; + + if (GNUNET_STREAM_TIMEOUT == status) + { + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "Read operation timedout - reading again!\n"); + GNUNET_assert (0 == size); + GNUNET_SCHEDULER_add_now (&stream_read_task, peer); + return 0; + } + + GNUNET_assert (GNUNET_STREAM_OK == status); + GNUNET_assert (size <= strlen (data)); + GNUNET_assert (0 == strncmp ((const char *) data + peer->bytes_read, + (const char *) input_data, + size)); + peer->bytes_read += size; + + if (peer->bytes_read < strlen (data)) + { + GNUNET_SCHEDULER_add_now (&stream_read_task, peer); + } + else + { + if (&peer2 == peer) /* Peer2 has completed reading; should write */ + { + peer->bytes_wrote = 0; + GNUNET_SCHEDULER_add_now (&stream_write_task, peer); + } + else /* Peer1 has completed reading. End of tests */ + { + reading_success = GNUNET_YES; + if (GNUNET_YES == writing_success) + GNUNET_SCHEDULER_add_now (&do_shutdown, NULL); + } + } + return size; +} + + +/** + * Functions of this type are called upon new stream connection from other peers + * + * @param cls the closure from GNUNET_STREAM_listen + * @param socket the socket representing the stream + * @param initiator the identity of the peer who wants to establish a stream + * with us + * @return GNUNET_OK to keep the socket open, GNUNET_SYSERR to close the + * stream (the socket will be invalid after the call) + */ +static int +stream_listen_cb (void *cls, + struct GNUNET_STREAM_Socket *socket, + const struct GNUNET_PeerIdentity *initiator) +{ + GNUNET_assert (NULL != socket); + GNUNET_assert (NULL != initiator); + GNUNET_assert (socket != peer1.socket); + + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "%s: Peer connected: %s\n", + GNUNET_i2s (&peer2.our_id), + GNUNET_i2s(initiator)); + + peer2.socket = socket; + peer2.bytes_read = 0; + GNUNET_SCHEDULER_add_now (&stream_read_task, &peer2); + return GNUNET_OK; +} + + +/** + * Callback to be called when testing peer group is ready + * + * @param cls NULL + * @param emsg NULL on success + */ +void +peergroup_ready (void *cls, const char *emsg) +{ + if (NULL != emsg) + { + GNUNET_log (GNUNET_ERROR_TYPE_ERROR, + "Starting peer group failed: %s\n", emsg); + return; + } + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "Peer group is now ready\n"); + + GNUNET_assert (2 == GNUNET_TESTING_daemons_running (pg)); + + d1 = GNUNET_TESTING_daemon_get (pg, 0); + GNUNET_assert (NULL != d1); + + d2 = GNUNET_TESTING_daemon_get (pg, 1); + GNUNET_assert (NULL != d2); + + GNUNET_TESTING_get_peer_identity (d1->cfg, + &peer1.our_id); + GNUNET_TESTING_get_peer_identity (d2->cfg, + &peer2.our_id); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "%s : %s\n", + GNUNET_i2s (&peer1.our_id), + GNUNET_i2s (&d1->id)); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "%s : %s\n", + GNUNET_i2s (&peer2.our_id), + GNUNET_i2s (&d2->id)); + + peer2_listen_socket = GNUNET_STREAM_listen (d2->cfg, + 10, /* App port */ + &stream_listen_cb, + NULL); + GNUNET_assert (NULL != peer2_listen_socket); + + /* Connect to stream library */ + peer1.socket = GNUNET_STREAM_open (d1->cfg, + &d2->id, /* Null for local peer? */ + 10, /* App port */ + &stream_open_cb, + &peer1, + GNUNET_STREAM_OPTION_END); + GNUNET_assert (NULL != peer1.socket); +} + + +/** + * Initialize framework and start test + */ +static void +run (void *cls, char *const *args, const char *cfgfile, + const struct GNUNET_CONFIGURATION_Handle *cfg) +{ + struct GNUNET_TESTING_Host *hosts; /* FIXME: free hosts (DLL) */ + + GNUNET_log_setup ("test_stream_2peers", + "DEBUG", + NULL); + + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "Starting test\n"); + /* Duplicate the configuration */ + config = GNUNET_CONFIGURATION_dup (cfg); + + hosts = GNUNET_TESTING_hosts_load (config); + + pg = GNUNET_TESTING_peergroup_start (config, + 2, + GNUNET_TIME_relative_multiply + (GNUNET_TIME_UNIT_SECONDS, 3), + NULL, + &peergroup_ready, + NULL, + hosts); + GNUNET_assert (NULL != pg); + + abort_task = + GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply + (GNUNET_TIME_UNIT_SECONDS, 40), &do_abort, + NULL); +} + +/** + * Main function + */ +int main (int argc, char **argv) +{ + int ret; + + char *argv2[] = { "test-stream-2peers", + "-L", "DEBUG", + "-c", "test_stream_local.conf", + NULL}; + + struct GNUNET_GETOPT_CommandLineOption options[] = { + GNUNET_GETOPT_OPTION_END + }; + + ret = + GNUNET_PROGRAM_run ((sizeof (argv2) / sizeof (char *)) - 1, argv2, + "test-stream-2peers", "nohelp", options, &run, NULL); + + if (GNUNET_OK != ret) + { + GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "run failed with error code %d\n", + ret); + return 1; + } + if (GNUNET_SYSERR == result) + { + GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "test failed\n"); + return 1; + } + GNUNET_log (GNUNET_ERROR_TYPE_INFO, "test ok\n"); + return 0; +} |