[svn-commits] wedhorn: branch wedhorn/skinny-session r390752 - /team/wedhorn/skinny-session...

[SVN commits to the Digium repositories]

Author: wedhorn
Date: Thu Jun  6 16:44:38 2013
New Revision: 390752

URL: http://svnview.digium.com/svn/asterisk?view=rev&rev=390752
Log:
skinny: fixup session locks for some edge cases

Modified:
    team/wedhorn/skinny-session/channels/chan_skinny.c

Modified: team/wedhorn/skinny-session/channels/chan_skinny.c
URL: http://svnview.digium.com/svn/asterisk/team/wedhorn/skinny-session/channels/chan_skinny.c?view=diff&rev=390752&r1=390751&r2=390752
==============================================================================
--- team/wedhorn/skinny-session/channels/chan_skinny.c (original)
+++ team/wedhorn/skinny-session/channels/chan_skinny.c Thu Jun  6 16:44:38 2013
@@ -1613,7 +1613,7 @@
 	char outbuf[SKINNY_MAX_PACKET];
 	struct skinny_device *device;
 	AST_LIST_ENTRY(skinnysession) list;
-	int destroy;
+	int lockstate; /* Only for use in the skinny_session thread */
 	int auth_timeout_sched;
 	int keepalive_timeout_sched;
 };
@@ -7324,6 +7324,7 @@
 
 static void destroy_session(struct skinnysession *s)
 {
+	ast_mutex_lock(&s->lock);
 	if (s->fd > -1) {
 		close(s->fd);
 	}
@@ -7333,7 +7334,7 @@
 	} else {
 		ast_atomic_fetchadd_int(&unauth_sessions, -1);
 	}
-
+	ast_mutex_unlock(&s->lock);
 	ast_mutex_destroy(&s->lock);
 	ast_free(s);
 }
@@ -7355,6 +7356,10 @@
 	struct skinny_speeddial *sd;
 
 	ast_verb(3, "Ending Skinny session from %s\n", ast_inet_ntoa(s->sin.sin_addr));
+	
+	if (s->lockstate) {
+		ast_mutex_unlock(&s->lock);
+	}
 
 	if (d) {
 		d->session = NULL;
@@ -7392,7 +7397,6 @@
 	int dlen = 0;
 	int timeout;
 	struct pollfd fds[1];
-	int lockstate = 0;
 
 	if (!s) {
 		ast_verb(3, "Bad Skinny Session\n");
@@ -7408,6 +7412,7 @@
 	}
 
 	ast_mutex_init(&s->lock);
+	s->lockstate = 0;
 	
 	AST_LIST_LOCK(&sessions);
 	AST_LIST_INSERT_HEAD(&sessions, s, list);
@@ -7425,9 +7430,6 @@
 		res = ast_poll(fds, 1, timeout); /* If nothing has happen, client is dead */
 								/* we add 10% to the keep_alive to deal */
 								/* with network delays, etc */
-		if (s->destroy) {
-			break;
-		}
 		if (res < 0) {
 			if (errno != EINTR) {
 				ast_log(LOG_WARNING, "Select returned error: %s\n", strerror(errno));
@@ -7452,7 +7454,7 @@
 			}
 
 			ast_mutex_lock(&s->lock);
-			lockstate = 1;
+			s->lockstate = 1;
 
 			if ((res = read(s->fd, req, skinny_header_size)) != skinny_header_size) {
 				if (res < 0) {
@@ -7504,7 +7506,7 @@
 			}
 
 			ast_mutex_unlock(&s->lock);
-			lockstate = 0;
+			s->lockstate = 0;
 
 			pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
 			res = handle_message(req, s);
@@ -7522,9 +7524,6 @@
 	}
 
 	ast_debug(3, "Skinny Session returned: %s\n", strerror(errno));
-	if (lockstate) {
-		ast_mutex_unlock(&s->lock);
-	}
 	if (req) {
 		ast_free(req);
 	}