[Asterisk-code-review] core: Use ast alertpipe for Asterisk signal monitoring thread. (asterisk[master])

[Corey Farrell]

Corey Farrell has uploaded this change for review. ( https://gerrit.asterisk.org/7169


Change subject: core: Use ast_alertpipe for Asterisk signal monitoring thread.
......................................................................

core: Use ast_alertpipe for Asterisk signal monitoring thread.

Reduce the signal monitoring thread file descriptor use from two to one
on systems that support eventfd.

Change-Id: Id4041a237d481ff699639e153ea6982fee14a462
---
M main/asterisk.c
1 file changed, 9 insertions(+), 16 deletions(-)



  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/69/7169/1

diff --git a/main/asterisk.c b/main/asterisk.c
index d555949..bc1990d 100644
--- a/main/asterisk.c
+++ b/main/asterisk.c
@@ -1761,13 +1761,13 @@
 
 static void _hup_handler(int num)
 {
-	int a = 0, save_errno = errno;
+	int save_errno = errno;
 	printf("Received HUP signal -- Reloading configs\n");
 	if (restartnow)
 		execvp(_argv[0], _argv);
 	sig_flags.need_reload = 1;
-	if (sig_alert_pipe[1] != -1) {
-		if (write(sig_alert_pipe[1], &a, sizeof(a)) < 0) {
+	if (ast_alertpipe_writable(sig_alert_pipe)) {
+		if (ast_alertpipe_write(sig_alert_pipe)) {
 			fprintf(stderr, "hup_handler: write() failed: %s\n", strerror(errno));
 		}
 	}
@@ -2169,10 +2169,7 @@
 		close(ast_consock);
 	if (!ast_opt_remote)
 		unlink(ast_config_AST_PID);
-	if (sig_alert_pipe[0])
-		close(sig_alert_pipe[0]);
-	if (sig_alert_pipe[1])
-		close(sig_alert_pipe[1]);
+	ast_alertpipe_close(sig_alert_pipe);
 	printf("%s", term_quit());
 	if (restart) {
 		int i;
@@ -2208,10 +2205,9 @@
 
 static void __quit_handler(int num)
 {
-	int a = 0;
 	sig_flags.need_quit = 1;
-	if (sig_alert_pipe[1] != -1) {
-		if (write(sig_alert_pipe[1], &a, sizeof(a)) < 0) {
+	if (ast_alertpipe_writable(sig_alert_pipe)) {
+		if (ast_alertpipe_write(sig_alert_pipe)) {
 			fprintf(stderr, "quit_handler: write() failed: %s\n", strerror(errno));
 		}
 	}
@@ -3887,7 +3883,7 @@
 {
 	for (;;) {
 		struct pollfd p = { sig_alert_pipe[0], POLLIN, 0 };
-		int a;
+
 		ast_poll(&p, 1, -1);
 		if (sig_flags.need_reload) {
 			sig_flags.need_reload = 0;
@@ -3902,8 +3898,7 @@
 				quit_handler(0, SHUTDOWN_NORMAL, 0);
 			}
 		}
-		if (read(sig_alert_pipe[0], &a, sizeof(a)) != sizeof(a)) {
-		}
+		ast_alertpipe_read(sig_alert_pipe);
 	}
 
 	return NULL;
@@ -4710,9 +4705,7 @@
 		consolethread = pthread_self();
 	}
 
-	if (pipe(sig_alert_pipe)) {
-		sig_alert_pipe[0] = sig_alert_pipe[1] = -1;
-	}
+	ast_alertpipe_init(sig_alert_pipe);
 
 	ast_process_pending_reloads();
 

-- 
To view, visit https://gerrit.asterisk.org/7169
To unsubscribe, visit https://gerrit.asterisk.org/settings

Gerrit-Project: asterisk
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: Id4041a237d481ff699639e153ea6982fee14a462
Gerrit-Change-Number: 7169
Gerrit-PatchSet: 1
Gerrit-Owner: Corey Farrell <git at cfware.com>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.digium.com/pipermail/asterisk-code-review/attachments/20171109/a6bb8ec1/attachment.html>