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Handle UEV_HUP properly in examples and unit tests

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If an I/O watcher callback fails to read(), returning zero, we check
events for UEV_HUP to detect EOF or socket remote end shutdown().

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This commit is contained in:
Joachim Nilsson committed 2017-11-14 12:56:39 +01:00
1 parent d52254b4ec
commit 2bea4192db
3 files changed
+21 -7
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tests/complete.c
+11 -5
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@@ -72,7 +72,7 @@ static void signal_cb(uev_t *w, void *UNUSED(arg), int events)
static void pipe_read_cb(uev_t *w, void UNUSED(*arg), int events)
{
int cnt;
int len;
char msg[50];
if (UEV_ERROR == events) {
@@ -87,13 +87,19 @@ static void pipe_read_cb(uev_t *w, void UNUSED(*arg), int events)
uev_timer_set(watchdog, 1000, 0);
/* Here we can read() from in or w->fd, either works. */
cnt = read(w->fd, msg, sizeof(msg));
if (cnt < 0) {
len = read(w->fd, msg, sizeof(msg));
if (len < 0) {
perror(__func__);
goto error;
}
// fprintf(stderr, "READ %.*s %d\n", cnt, msg, cnt);
fprintf(stderr, "%.*s.%d ", cnt, msg, cnt);
if (len == 0 || UEV_HUP == events) {
fprintf(stderr, "Other end of pipe closed, no more data\n");
return;
}
// fprintf(stderr, "READ %.*s %d\n", len, msg, len);
fprintf(stderr, "%.*s.%d ", len, msg, len);
}
static void pipe_write_cb(uev_t *w, void *arg, int UNUSED(events))