X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=examples%2Fmanynodes.c;h=22ebad2145e52ae1cb5d75b595f9c6f756e06c1a;hb=e4e5a81447142da0fb1291b2d2119ed6981b89e5;hp=e2b1630cf4ab15da68ffb78cc2004214ff8cd2b6;hpb=cf5a9d0ff6ef59cd130a865ce1be44b4e8b8471a;p=meshlink diff --git a/examples/manynodes.c b/examples/manynodes.c index e2b1630c..22ebad21 100644 --- a/examples/manynodes.c +++ b/examples/manynodes.c @@ -8,32 +8,44 @@ #include "../src/meshlink.h" -static int n = 100; +static int n = 10; static meshlink_handle_t **mesh; +static meshlink_node_t **nodes; +static size_t nnodes; + static void log_message(meshlink_handle_t *mesh, meshlink_log_level_t level, const char *text) { - const char *levelstr[] = {"DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL"}; - fprintf(stderr, "%s: %s\n", levelstr[level], text); + const char *levelstr[] = { + [MESHLINK_DEBUG] = "\x1b[34mDEBUG", + [MESHLINK_INFO] = "\x1b[32mINFO", + [MESHLINK_WARNING] = "\x1b[33mWARNING", + [MESHLINK_ERROR] = "\x1b[31mERROR", + [MESHLINK_CRITICAL] = "\x1b[31mCRITICAL", + }; + fprintf(stderr, "%s\t%s:\x1b[0m %s\n", mesh ? mesh->name : "global",levelstr[level], text); } -static void receive(meshlink_handle_t *mesh, meshlink_node_t *source, const void *data, size_t len) { - const char *msg = data; +//Test mesh sending data +static void testmesh () { - if(!len || msg[len - 1]) { - fprintf(stderr, "Received invalid data from %s\n", source->name); - return; - } + for(int nindex = 0; nindex < n; nindex++) { - printf("%s says: %s\n", source->name, msg); -} + nodes = meshlink_get_all_nodes(mesh[nindex], nodes, &nnodes); + if(!nodes) { + fprintf(stderr, "Could not get list of nodes: %s\n", meshlink_strerror(meshlink_errno)); + } else { + printf("%zu known nodes:\n", nnodes); + for(int i = 0; i < nnodes; i++) { + //printf(" %s\n", nodes[i]->name); + if(!meshlink_send(mesh[nindex], nodes[i], "magic", strlen("magic") + 1)) { + fprintf(stderr, "Could not send message to '%s': %s\n", nodes[i]->name, meshlink_strerror(meshlink_errno)); + } + } -static void node_status(meshlink_handle_t *mesh, meshlink_node_t *node, bool reachable) { - if(reachable) - printf("%s joined.\n", node->name); - else - printf("%s left.\n", node->name); -} + } + } +} // Make all nodes know about each other by importing each others public keys and addresses. static void linkmesh() { for(int i = 0; i < n; i++) { @@ -76,11 +88,13 @@ static void parse_command(char *buf) { fprintf(stderr, "/join requires an argument!\n"); return; } - + meshlink_stop(mesh[0]); if(!meshlink_join(mesh[0], arg)) fprintf(stderr, "Could not join using invitation: %s\n", meshlink_strerror(meshlink_errno)); - else + else { fprintf(stderr, "Invitation accepted!\n"); + meshlink_start(mesh[0]); + } } else if(!strcasecmp(buf, "kick")) { if(!arg) { fprintf(stderr, "/kick requires an argument!\n"); @@ -98,16 +112,13 @@ static void parse_command(char *buf) { printf("Node '%s' blacklisted.\n", arg); } else if(!strcasecmp(buf, "who")) { if(!arg) { - meshlink_node_t *nodes[100]; - size_t n = meshlink_get_all_nodes(mesh[0], nodes, 100); - if(!n) { - fprintf(stderr, "No nodes known!\n"); + nodes = meshlink_get_all_nodes(mesh[0], nodes, &nnodes); + if(!nodes) { + fprintf(stderr, "Could not get list of nodes: %s\n", meshlink_strerror(meshlink_errno)); } else { - printf("Known nodes:"); - for(int i = 0; i < n && i < 100; i++) + printf("%zu known nodes:", nnodes); + for(int i = 0; i < nnodes; i++) printf(" %s", nodes[i]->name); - if(n > 100) - printf(" (and %zu more)", n - 100); printf("\n"); } } else { @@ -115,11 +126,13 @@ static void parse_command(char *buf) { if(!node) { fprintf(stderr, "Unknown node '%s'\n", arg); } else { - printf("Node %s found\n", arg); + printf("Node %s found, pmtu %zd\n", arg, meshlink_get_pmtu(mesh[0], node)); } } } else if(!strcasecmp(buf, "link")) { linkmesh(); + } else if(!strcasecmp(buf, "test")) { + testmesh(); } else if(!strcasecmp(buf, "quit")) { printf("Bye!\n"); fclose(stdin); @@ -132,6 +145,7 @@ static void parse_command(char *buf) { "/kick Blacklist the given node.\n" "/who [] List all nodes or show information about the given node.\n" "/link Link all nodes together.\n" + "/test Test functionality sending some data to all nodes\n" "/quit Exit this program.\n" ); } else { @@ -199,30 +213,36 @@ static void parse_input(char *buf) { int main(int argc, char *argv[]) { const char *basebase = ".manynodes"; + const char *namesprefix = "machine1"; char buf[1024]; if(argc > 1) n = atoi(argv[1]); if(n < 1) { - fprintf(stderr, "Usage: %s [number of local nodes] [confbase]\n", argv[0]); + fprintf(stderr, "Usage: %s [number of local nodes] [confbase] [prefixnodenames]\n", argv[0]); return 1; } if(argc > 2) basebase = argv[2]; + if(argc > 3) + namesprefix = argv[3]; + mesh = calloc(n, sizeof *mesh); + meshlink_set_log_cb(NULL, MESHLINK_INFO, log_message); mkdir(basebase, 0750); char filename[PATH_MAX]; char nodename[100]; for(int i = 0; i < n; i++) { - snprintf(nodename, sizeof nodename, "node%d", i); + snprintf(nodename, sizeof nodename, "%snode%d", namesprefix,i); snprintf(filename, sizeof filename, "%s/%s", basebase, nodename); bool itsnew = access(filename, R_OK); - mesh[i] = meshlink_open(filename, nodename, "manynodes"); + mesh[i] = meshlink_open(filename, nodename, "manynodes", DEV_CLASS_PORTABLE); + meshlink_set_log_cb(mesh[i], MESHLINK_INFO, log_message); if(itsnew) meshlink_add_address(mesh[i], "localhost"); if(!mesh[i]) {