From: Siraaj Khandkar <siraaj@khandkar.net>
Date: Wed, 25 Mar 2020 01:43:35 +0000 (-0400)
Subject: Handle pselect errors
X-Git-Url: https://git.xandkar.net/?p=khatus.git;a=commitdiff_plain;h=0166c18d23dc7f9168726bcb0d9ccc5aaca7755a

Handle pselect errors
---

diff --git a/x5/khatus.c b/x5/khatus.c
index 6ffa538..117fb98 100644
--- a/x5/khatus.c
+++ b/x5/khatus.c
@@ -429,8 +429,19 @@ fifo_read_all(Config *cfg, struct timespec *ti, char *buf)
 	debug("selecting...\n");
 	ready = pselect(maxfd + 1, &fds, NULL, NULL, ti, NULL);
 	debug("ready: %d\n", ready);
-	assert(ready >= 0);
 	clock_gettime(CLOCK_MONOTONIC, &t);
+	if (ready == -1) {
+		switch (errno) {
+		case EINTR:
+			error("pselect temp failure: %d, errno: %d, msg: %s\n",
+			    ready, errno, strerror(errno));
+			/* TODO: Reconsider what to do here. */
+			return;
+		default:
+			error("pselect failed: %d, errno: %d, msg: %s\n",
+			    ready, errno, strerror(errno));
+		}
+	}
 	/* At-least-once ensures that expiries are still checked on timeouts. */
 	do {
 		for (Fifo *f = cfg->fifos; f; f = f->next) {