From: Charlie Birks <redacted>
Date: Sat, 7 Dec 2024 18:11:08 +0000 (+0000)
Subject: tcp: Avoid blocking in sr_fd_is_readable if using poll
X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=8a77fe48275640c519689e7950815c81456dcaf4;p=libsigrok.git

tcp: Avoid blocking in sr_fd_is_readable if using poll

This is consistent with the select path and the function description.
---

diff --git a/src/tcp.c b/src/tcp.c
index fe8e24d8..33074b5c 100644
--- a/src/tcp.c
+++ b/src/tcp.c
@@ -84,7 +84,7 @@ SR_PRIV gboolean sr_fd_is_readable(int fd)
 	memset(fds, 0, sizeof(fds));
 	fds[0].fd = fd;
 	fds[0].events = POLLIN;
-	ret = poll(fds, ARRAY_SIZE(fds), -1);
+	ret = poll(fds, ARRAY_SIZE(fds), 0);
 	if (ret < 0)
 		return FALSE;
 	if (!ret)