opnsense-ports/devel/libpdel/files/patch-util_pevent.c
Franco Fichtner 13a6e9bab9 */*: sync with upstream
Taken from: HardenedBSD
2021-07-05 10:55:42 +02:00

65 lines
1.8 KiB
C

--- util/pevent.c.orig 2009-05-13 21:36:05 UTC
+++ util/pevent.c
@@ -147,6 +147,15 @@ struct pevent {
} \
} while (0)
+#define PEVENT_SET_OCCURRED(ctx, ev) \
+ do { \
+ (ev)->flags |= PEVENT_OCCURRED; \
+ if ((ev) != TAILQ_FIRST(&ctx->events)) { \
+ TAILQ_REMOVE(&(ctx)->events, (ev), next); \
+ TAILQ_INSERT_HEAD(&(ctx)->events, (ev), next); \
+ } \
+ } while (0)
+
/* Internal functions */
static void pevent_ctx_service(struct pevent *ev);
static void *pevent_ctx_main(void *arg);
@@ -336,7 +345,11 @@ pevent_register(struct pevent_ctx *ctx, struct pevent
ev->u.millis = 0;
pd_gettimeofday(&ev->when, NULL);
ev->when.tv_sec += ev->u.millis / 1000;
- ev->when.tv_usec += ev->u.millis % 1000;
+ ev->when.tv_usec += (ev->u.millis % 1000) * 1000;
+ if (ev->when.tv_usec > 1000000) {
+ ev->when.tv_sec++;
+ ev->when.tv_usec -= 1000000;
+ }
break;
case PEVENT_MESG_PORT:
va_start(args, type);
@@ -392,15 +405,16 @@ pevent_register(struct pevent_ctx *ctx, struct pevent
} else
pevent_ctx_notify(ctx);
+ /* Caller gets the one reference */
+ ev->peventp = peventp;
+ *peventp = ev;
+
/* Add event to the pending event list */
PEVENT_ENQUEUE(ctx, ev);
/* Unlock context */
MUTEX_UNLOCK(&ctx->mutex, ctx->mutex_count);
- /* Done; caller gets the one reference */
- ev->peventp = peventp;
- *peventp = ev;
return (0);
}
@@ -565,6 +579,13 @@ loop:
if (ctx->notified) {
DBG(PEVENT, "ctx %p thread was notified", ctx);
(void)pd_read(ctx->pipe[0], &pevent_byte, 1);
+ ctx->notified = 0;
+ }
+
+ /* If we were intentionally woken up, read the wakeup byte */
+ if (ctx->notified) {
+ DBG(PEVENT, "ctx %p thread was notified", ctx);
+ (void)read(ctx->pipe[0], &pevent_byte, 1);
ctx->notified = 0;
}