Fix memory leaks from timers.

[meshlink] / src / event.c

diff --git a/src/event.c b/src/event.c
index 245e39ecb45f34a62d848071a7b251880a821e6d..f88112ff6dfea4f8a03e8a72d4090014e8b59f56 100644 (file)
--- a/src/event.c
+++ b/src/event.c
@@ -129,6 +129,15 @@ void timeout_set(event_loop_t *loop, timeout_t *timeout, struct timeval *tv) {
        if(!splay_insert_node(&loop->timeouts, &timeout->node)) {
                abort();
        }
+
+       loop->deletion = true;
+}
+
+static void timeout_disable(event_loop_t *loop, timeout_t *timeout) {
+       splay_unlink_node(&loop->timeouts, &timeout->node);
+       timeout->tv = (struct timeval) {
+               0, 0
+       };
 }
 
 void timeout_del(event_loop_t *loop, timeout_t *timeout) {
@@ -136,13 +145,12 @@ void timeout_del(event_loop_t *loop, timeout_t *timeout) {
                return;
        }
 
-       loop->deletion = true;
+       if(timerisset(&timeout->tv)) {
+               timeout_disable(loop, timeout);
+       }
 
-       splay_unlink_node(&loop->timeouts, &timeout->node);
-       timeout->cb = 0;
-       timeout->tv = (struct timeval) {
-               0, 0
-       };
+       timeout->cb = NULL;
+       loop->deletion = true;
 }
 
 static int signal_compare(const signal_t *a, const signal_t *b) {
@@ -173,6 +181,16 @@ static void pipe_init(event_loop_t *loop) {
        }
 }
 
+static void pipe_exit(event_loop_t *loop) {
+       io_del(loop, &loop->signalio);
+
+       close(loop->pipefd[0]);
+       close(loop->pipefd[1]);
+
+       loop->pipefd[0] = -1;
+       loop->pipefd[1] = -1;
+}
+
 void signal_trigger(event_loop_t *loop, signal_t *sig) {
        uint8_t signum = sig->signum;
        write(loop->pipefd[1], &signum, 1);
@@ -207,6 +225,10 @@ void signal_del(event_loop_t *loop, signal_t *sig) {
 
        splay_unlink_node(&loop->signals, &sig->node);
        sig->cb = NULL;
+
+       if(!loop->signals.count && loop->pipefd[0] != -1) {
+               pipe_exit(loop);
+       }
 }
 
 void idle_set(event_loop_t *loop, idle_cb_t cb, void *data) {
@@ -218,7 +240,6 @@ bool event_loop_run(event_loop_t *loop, pthread_mutex_t *mutex) {
        fd_set readable;
        fd_set writable;
 
-
        while(loop->running) {
                gettimeofday(&loop->now, NULL);
                struct timeval diff, it, *tv = NULL;
@@ -228,11 +249,8 @@ bool event_loop_run(event_loop_t *loop, pthread_mutex_t *mutex) {
                        timersub(&timeout->tv, &loop->now, &diff);
 
                        if(diff.tv_sec < 0) {
+                               timeout_disable(loop, timeout);
                                timeout->cb(loop, timeout->data);
-
-                               if(timercmp(&timeout->tv, &loop->now, <)) {
-                                       timeout_del(loop, timeout);
-                               }
                        } else {
                                tv = &diff;
                                break;