#include <sys/stat.h>
#include <errno.h>
+#include <sys/time.h>
+#include <signal.h>
+
static int n = 10;
static meshlink_handle_t **mesh;
+static int nodeindex = 0;
+
static meshlink_node_t **nodes;
static size_t nnodes;
return false;
}
- if(!devtool_export_json_all_edges_state(mesh[0], stream))
+ if(!devtool_export_json_all_edges_state(mesh[nodeindex], stream))
{
fclose(stream);
fprintf(stderr, "could not export graph\n");
return true;
}
+
+void exportmeshgraph_timer(int signum)
+{
+ struct timeval ts;
+ gettimeofday(&ts, NULL);
+
+ char name[1024];
+ snprintf(name, sizeof(name), "graph_%ld_%03ld.json", ts.tv_sec, ts.tv_usec/1000);
+
+ exportmeshgraph(name);
+}
+
+static bool exportmeshgraph_started = false;
+
+static bool exportmeshgraph_end(const char* none)
+{
+ if(!exportmeshgraph_started)
+ { return false; }
+
+ struct itimerval zero_timer = { 0 };
+ setitimer (ITIMER_REAL, &zero_timer, NULL);
+
+ exportmeshgraph_started = false;
+
+ return true;
+}
+
+static bool exportmeshgraph_begin(const char* timeout_str)
+{
+ if(!timeout_str)
+ return false;
+
+ if(exportmeshgraph_started)
+ {
+ if(!exportmeshgraph_end(NULL))
+ return false;
+ }
+
+ // get timeout
+ int timeout = atoi(timeout_str);
+
+ if(timeout < 100)
+ { timeout = 100; }
+
+ int timeout_sec = timeout / 1000;
+ int timeout_msec = timeout % 1000;
+
+ /* Install timer_handler as the signal handler for SIGALRM. */
+ signal(SIGALRM, exportmeshgraph_timer);
+
+ /* Configure the timer to expire immediately... */
+ struct itimerval timer;
+ timer.it_value.tv_sec = 0;
+ timer.it_value.tv_usec = 1000;
+
+ /* ... and every X msec after that. */
+ timer.it_interval.tv_sec = timeout_sec;
+ timer.it_interval.tv_usec = timeout_msec * 1000;
+
+ /* Start a real timer. */
+ setitimer (ITIMER_REAL, &timer, NULL);
+
+ exportmeshgraph_started = true;
+
+ return true;
+}
+
static void parse_command(char *buf) {
char *arg = strchr(buf, ' ');
if(arg)
return;
}
- invitation = meshlink_invite(mesh[0], arg);
+ invitation = meshlink_invite(mesh[nodeindex], arg);
if(!invitation) {
fprintf(stderr, "Could not invite '%s': %s\n", arg, meshlink_strerror(meshlink_errno));
return;
fprintf(stderr, "/join requires an argument!\n");
return;
}
- meshlink_stop(mesh[0]);
- if(!meshlink_join(mesh[0], arg))
+ meshlink_stop(mesh[nodeindex]);
+ if(!meshlink_join(mesh[nodeindex], arg))
fprintf(stderr, "Could not join using invitation: %s\n", meshlink_strerror(meshlink_errno));
else {
fprintf(stderr, "Invitation accepted!\n");
- meshlink_start(mesh[0]);
+ meshlink_start(mesh[nodeindex]);
}
} else if(!strcasecmp(buf, "kick")) {
if(!arg) {
return;
}
- meshlink_node_t *node = meshlink_get_node(mesh[0], arg);
+ meshlink_node_t *node = meshlink_get_node(mesh[nodeindex], arg);
if(!node) {
fprintf(stderr, "Unknown node '%s'\n", arg);
return;
}
- meshlink_blacklist(mesh[0], node);
+ meshlink_blacklist(mesh[nodeindex], node);
printf("Node '%s' blacklisted.\n", arg);
} else if(!strcasecmp(buf, "who")) {
if(!arg) {
- nodes = meshlink_get_all_nodes(mesh[0], nodes, &nnodes);
+ nodes = meshlink_get_all_nodes(mesh[nodeindex], nodes, &nnodes);
if(!nodes) {
fprintf(stderr, "Could not get list of nodes: %s\n", meshlink_strerror(meshlink_errno));
} else {
printf("\n");
}
} else {
- meshlink_node_t *node = meshlink_get_node(mesh[0], arg);
+ meshlink_node_t *node = meshlink_get_node(mesh[nodeindex], arg);
if(!node) {
fprintf(stderr, "Unknown node '%s'\n", arg);
} else {
- printf("Node %s found, pmtu %zd\n", arg, meshlink_get_pmtu(mesh[0], node));
+ printf("Node %s found, pmtu %zd\n", arg, meshlink_get_pmtu(mesh[nodeindex], node));
}
}
} else if(!strcasecmp(buf, "link")) {
linkmesh();
} else if(!strcasecmp(buf, "eg")) {
exportmeshgraph(arg);
+ } else if(!strcasecmp(buf, "egb")) {
+ exportmeshgraph_begin(arg);
+ } else if(!strcasecmp(buf, "ege")) {
+ exportmeshgraph_end(NULL);
} else if(!strcasecmp(buf, "test")) {
testmesh();
+ } else if(!strcasecmp(buf, "select")) {
+ if(!arg) {
+ fprintf(stderr, "/select requires an argument!\n");
+ return;
+ }
+ nodeindex = atoi(arg);
+ printf("Index is now %d\n",nodeindex);
+ } else if(!strcasecmp(buf, "stop")) {
+ meshlink_stop(mesh[nodeindex]);
} else if(!strcasecmp(buf, "quit")) {
printf("Bye!\n");
fclose(stdin);
"/link Link all nodes together.\n"
"/eg <path> Export graph as json file.\n"
"/test Test functionality sending some data to all nodes\n"
+ "/select <number> Select the active node running the user commands\n"
+ "/stop Call meshlink_stop, use /select first to select which node to stop\n"
"/quit Exit this program.\n"
);
} else {
if(*msg == ' ')
msg++;
- destination = meshlink_get_node(mesh[0], buf);
+ destination = meshlink_get_node(mesh[nodeindex], buf);
if(!destination) {
fprintf(stderr, "Unknown node '%s'\n", buf);
return;
return;
}
- if(!meshlink_send(mesh[0], destination, msg, strlen(msg) + 1)) {
+ if(!meshlink_send(mesh[nodeindex], destination, msg, strlen(msg) + 1)) {
fprintf(stderr, "Could not send message to '%s': %s\n", destination->name, meshlink_strerror(meshlink_errno));
return;
}
int main(int argc, char *argv[]) {
const char *basebase = ".manynodes";
const char *namesprefix = "machine1";
+ const char *graphexporttimeout = NULL;
char buf[1024];
if(argc > 1)
n = atoi(argv[1]);
if(n < 1) {
- fprintf(stderr, "Usage: %s [number of local nodes] [confbase] [prefixnodenames]\n", argv[0]);
+ fprintf(stderr, "Usage: %s [number of local nodes] [confbase] [prefixnodenames] [graphexport timeout]\n", argv[0]);
return 1;
}
if(argc > 3)
namesprefix = argv[3];
+ if(argc > 4)
+ graphexporttimeout = argv[4];
+
mesh = calloc(n, sizeof *mesh);
- meshlink_set_log_cb(NULL, MESHLINK_INFO, log_message);
+ meshlink_set_log_cb(NULL, MESHLINK_WARNING, log_message);
mkdir(basebase, 0750);
char filename[PATH_MAX];
snprintf(filename, sizeof filename, "%s/%s", basebase, nodename);
bool itsnew = access(filename, R_OK);
mesh[i] = meshlink_open(filename, nodename, "manynodes", i%_DEV_CLASS_MAX);
- meshlink_set_log_cb(mesh[i], MESHLINK_INFO, log_message);
- if(itsnew)
- meshlink_add_address(mesh[i], "localhost");
+ meshlink_set_log_cb(mesh[i], MESHLINK_WARNING, log_message);
if(!mesh[i]) {
fprintf(stderr, "errno is: %d\n", meshlink_errno);
fprintf(stderr, "Could not open %s: %s\n", filename, meshlink_strerror(meshlink_errno));
return 1;
}
+ if(graphexporttimeout)
+ { exportmeshgraph_begin(graphexporttimeout); }
+
printf("%d nodes started.\nType /help for a list of commands.\n", started);
+ // handle input
while(fgets(buf, sizeof buf, stdin))
parse_input(buf);
+ exportmeshgraph_end(NULL);
+
printf("Nodes stopping.\n");
for(int i = 0; i < n; i++)
projects / meshlink / blobdiff