From: David Vašek <david.vasek@nic.cz>
Date: Tue, 27 May 2025 09:13:15 +0000 (+0200)
Subject: ctl: after receiving the 'stop' command, interrupt the socket ctl thread immediately
X-Git-Tag: v3.5.0~58^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7857bc50898a0b94586a7fd4b4c7c84aab338c21;p=thirdparty%2Fknot-dns.git

ctl: after receiving the 'stop' command, interrupt the socket ctl thread immediately

This enables quick shutdown without waiting for timeouts in the socket ctl thread.
---

diff --git a/src/knot/ctl/threads.c b/src/knot/ctl/threads.c
index 72ee2fc92a..555762028a 100644
--- a/src/knot/ctl/threads.c
+++ b/src/knot/ctl/threads.c
@@ -111,6 +111,10 @@ static void *ctl_process_thread(void *arg)
 
 		pthread_mutex_lock(&ctx->mutex);
 		ctx->ret = ret;
+		if (ret == KNOT_CTL_ESTOP) {
+			// Interrupt main ctl socket thread likely waiting in a syscall.
+			pthread_kill(ctx->socket_thr, SIGALRM);
+		}
 		ctx->exclusive = exclusive;
 		if (ctx->state == CONCURRENT_RUNNING) { // not KILLED
 			ctx->state = CONCURRENT_IDLE;