Don't check for error when lowering priority (according to the manpage, it should never happen anyway). It might could happen, though, if another thread messed with the priority, so safeguard against that (reported via -dev list).

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.2@60849 65c4cc65-6c06-0410-ace0-fbb531ad65f3

asterisk.c

@@ -795,6 +795,7 @@ int ast_set_priority(int pri)
 	struct sched_param sched;
 	memset(&sched, 0, sizeof(sched));
 #ifdef __linux__
+#undef sched_setscheduler
 	if (pri) {  
 		sched.sched_priority = 10;
 		if (sched_setscheduler(0, SCHED_RR, &sched)) {
@@ -805,12 +806,11 @@ int ast_set_priority(int pri)
 				ast_verbose("Set to realtime thread\n");
 	} else {
 		sched.sched_priority = 0;
-		if (sched_setscheduler(0, SCHED_OTHER, &sched)) {
-			ast_log(LOG_WARNING, "Unable to set normal priority\n");
-			return -1;
-		}
+		/* According to the manpage, this can never fail, with these parameters. */
+		sched_setscheduler(0, SCHED_OTHER, &sched);
 	}
 #else
+#undef setpriority
 	if (pri) {
 		if (setpriority(PRIO_PROCESS, 0, -10) == -1) {
 			ast_log(LOG_WARNING, "Unable to set high priority\n");
@@ -819,10 +819,8 @@ int ast_set_priority(int pri)
 			if (option_verbose)
 				ast_verbose("Set to high priority\n");
 	} else {
-		if (setpriority(PRIO_PROCESS, 0, 0) == -1) {
-			ast_log(LOG_WARNING, "Unable to set normal priority\n");
-			return -1;
-		}
+		/* According to the manpage, this can never fail, with these parameters. */
+		setpriority(PRIO_PROCESS, 0, 0);
 	}
 #endif
 	return 0;

include/asterisk.h

@@ -21,6 +21,8 @@
 #define DEFAULT_LANGUAGE "en"
 
 #define AST_CONFIG_MAX_PATH 255
+#define	setpriority	__PLEASE_USE_ast_set_priority_INSTEAD_OF_setpriority__
+#define	sched_setscheduler	__PLEASE_USE_ast_set_priority_INSTEAD_OF_sched_setscheduler__
 
 /* provided in asterisk.c */
 extern char ast_config_AST_CONFIG_DIR[AST_CONFIG_MAX_PATH];