X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=test%2Fblackbox%2Ftest_case_channel_conn_07%2Fnode_sim_nut.c;fp=test%2Fblackbox%2Ftest_case_channel_conn_07%2Fnode_sim_nut.c;h=b47c0006f2840c3885d4999409e2288547efdd4f;hb=de40dd736a1b048e5e0f856184f832fa4db184d3;hp=0000000000000000000000000000000000000000;hpb=dc68da94af8fca91748579c84ef5ed798db7efab;p=meshlink diff --git a/test/blackbox/test_case_channel_conn_07/node_sim_nut.c b/test/blackbox/test_case_channel_conn_07/node_sim_nut.c new file mode 100644 index 00000000..b47c0006 --- /dev/null +++ b/test/blackbox/test_case_channel_conn_07/node_sim_nut.c @@ -0,0 +1,172 @@ +/* + node_sim_nut.c -- Implementation of Node Simulation for Meshlink Testing + for meta connection test case 01 - re-connection of + two nodes when relay node goes down + Copyright (C) 2018 Guus Sliepen + + This program 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 of the License, or + (at your option) any later version. + + This program 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 this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ +#include +#include +#include +#include +#include +#include +#include "../common/common_handlers.h" +#include "../common/test_step.h" +#include "../common/mesh_event_handler.h" +#include "../../utils.h" + +#define CMD_LINE_ARG_NODENAME 1 +#define CMD_LINE_ARG_DEVCLASS 2 +#define CMD_LINE_ARG_CLIENTID 3 +#define CMD_LINE_ARG_IMPORTSTR 4 +#define CMD_LINE_ARG_INVITEURL 5 +#define CHANNEL_PORT 1234 + +static int client_id = -1; + +static struct sync_flag peer_reachable = {.mutex = PTHREAD_MUTEX_INITIALIZER, .cond = PTHREAD_COND_INITIALIZER}; +static struct sync_flag channel_opened = {.mutex = PTHREAD_MUTEX_INITIALIZER, .cond = PTHREAD_COND_INITIALIZER}; +static struct sync_flag peer_unreachable = {.mutex = PTHREAD_MUTEX_INITIALIZER, .cond = PTHREAD_COND_INITIALIZER}; +static struct sync_flag sigusr_received = {.mutex = PTHREAD_MUTEX_INITIALIZER, .cond = PTHREAD_COND_INITIALIZER}; + +static void send_event(mesh_event_t event); +static void node_status_cb(meshlink_handle_t *mesh, meshlink_node_t *node, + bool reachable); +static void mesh_siguser1_signal_handler(int sig_num); + +static void mesh_siguser1_signal_handler(int sig_num) { + set_sync_flag(&sigusr_received, true); + return; +} + +static void send_event(mesh_event_t event) { + bool send_ret = false; + int attempts; + + for(attempts = 0; attempts < 5; attempts += 1) { + if(mesh_event_sock_send(client_id, event, NULL, 0)) { + break; + } + } + + assert(attempts < 5); + + return; +} + +static void node_status_cb(meshlink_handle_t *mesh, meshlink_node_t *node, + bool reachable) { + + if(!strcasecmp(node->name, "peer")) { + if(reachable) { + set_sync_flag(&peer_reachable, true); + } else { + set_sync_flag(&peer_unreachable, true); + } + } + + return; +} + +static void poll_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, size_t len) { + (void)len; + meshlink_set_channel_poll_cb(mesh, channel, NULL); + assert(meshlink_channel_send(mesh, channel, "test", 5) >= 0); + return; +} + +static void channel_receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *dat, size_t len) { + if(len == 0) { + send_event(ERR_NETWORK); + return; + } + + if(!strcmp(channel->node->name, "peer")) { + if(len == 5 && !memcmp(dat, "reply", 5)) { + set_sync_flag(&channel_opened, true); + } + } + + return; +} + +int main(int argc, char *argv[]) { + struct timeval main_loop_wait = { 2, 0 }; + struct timespec timeout = {0}; + int i; + + // Import mesh event handler + + if((argv[CMD_LINE_ARG_CLIENTID]) && (argv[CMD_LINE_ARG_IMPORTSTR])) { + client_id = atoi(argv[CMD_LINE_ARG_CLIENTID]); + mesh_event_sock_connect(argv[CMD_LINE_ARG_IMPORTSTR]); + } + + // Setup required signals + + setup_signals(); + signal(SIGUSR1, mesh_siguser1_signal_handler); + + // Execute test steps + + meshlink_handle_t *mesh = meshlink_open("testconf", argv[CMD_LINE_ARG_NODENAME], + "test_channel_conn", atoi(argv[CMD_LINE_ARG_DEVCLASS])); + assert(mesh); + meshlink_set_log_cb(mesh, MESHLINK_DEBUG, meshlink_callback_logger); + meshlink_set_node_status_cb(mesh, node_status_cb); + + if(argv[CMD_LINE_ARG_INVITEURL]) { + assert(meshlink_join(mesh, argv[CMD_LINE_ARG_INVITEURL])); + } + + assert(meshlink_start(mesh)); + + // Wait for peer node to join + assert(wait_sync_flag(&peer_reachable, 30)); + send_event(NODE_JOINED); + + // Open a channel to peer node + + meshlink_node_t *peer_node = meshlink_get_node(mesh, "peer"); + assert(peer_node); + meshlink_channel_t *channel = meshlink_channel_open(mesh, peer_node, CHANNEL_PORT, + channel_receive_cb, NULL, 0); + meshlink_set_channel_poll_cb(mesh, channel, poll_cb); + + assert(wait_sync_flag(&channel_opened, 10)); + send_event(CHANNEL_OPENED); + + peer_unreachable.flag = false; + peer_reachable.flag = false; + assert(wait_sync_flag(&sigusr_received, 10)); + + assert(wait_sync_flag(&peer_unreachable, 100)); + send_event(NODE_UNREACHABLE); + + assert(wait_sync_flag(&peer_reachable, 100)); + send_event(NODE_REACHABLE); + + assert(meshlink_channel_send(mesh, channel, "after", 6) >= 0); + + // All test steps executed - wait for signals to stop/start or close the mesh + + while(test_running) { + select(1, NULL, NULL, NULL, &main_loop_wait); + } + + meshlink_close(mesh); +}