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Do not spin waiting for exit, instead check in the write callback.

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This commit is contained in:
nicm
2019-12-13 06:55:12 +00:00
parent dcf41ec927
commit 828001ecc5
1 changed files with 27 additions and 24 deletions
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51
client.c
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@@ -45,6 +45,7 @@ static enum {
CLIENT_EXIT_EXITED,
CLIENT_EXIT_SERVER_EXITED,
} client_exitreason = CLIENT_EXIT_NONE;
static int client_exitflag;
static int client_exitval;
static enum msgtype client_exittype;
static const char *client_exitsession;
@@ -209,6 +210,27 @@ client_exit_message(void)
return ("unknown reason");
}
/* Exit if all streams flushed. */
static void
client_exit(void)
{
struct client_file *cf;
size_t left;
int waiting = 0;
RB_FOREACH (cf, client_files, &client_files) {
if (cf->event == NULL)
continue;
left = EVBUFFER_LENGTH(cf->event->output);
if (left != 0) {
waiting++;
log_debug("file %u %zu bytes left", cf->stream, left);
}
}
if (waiting == 0)
proc_exit(client_proc);
}
/* Client main loop. */
int
client_main(struct event_base *base, int argc, char **argv, int flags)
@@ -451,6 +473,9 @@ client_write_callback(__unused struct bufferevent *bev, void *arg)
RB_REMOVE(client_files, &client_files, cf);
file_free(cf);
}
if (client_exitflag)
client_exit();
}
/* Open write file. */
@@ -724,29 +749,6 @@ client_signal(int sig)
}
}
/* Exit if all streams flushed. */
static void
client_exit(__unused int fd, __unused short events, __unused void *arg)
{
struct client_file *cf;
size_t left;
int waiting = 0;
RB_FOREACH (cf, client_files, &client_files) {
if (cf->event == NULL)
continue;
left = EVBUFFER_LENGTH(cf->event->output);
if (left != 0) {
waiting++;
log_debug("file %u %zu bytes left", cf->stream, left);
}
}
if (waiting == 0)
proc_exit(client_proc);
else
event_once(-1, EV_TIMEOUT, client_exit, NULL, NULL);
}
/* Callback for client read events. */
static void
client_dispatch(struct imsg *imsg, __unused void *arg)
@@ -799,7 +801,8 @@ client_dispatch_wait(struct imsg *imsg)
memcpy(&retval, data, sizeof retval);
client_exitval = retval;
}
event_once(-1, EV_TIMEOUT, client_exit, NULL, NULL);
client_exitflag = 1;
client_exit();
break;
case MSG_READY:
if (datalen != 0)