Bug 6864 - drop realtime priority on ALL external processes

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.2@24019 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_externalivr.c

@@ -44,6 +44,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/module.h"
 #include "asterisk/linkedlists.h"
 #include "asterisk/app.h"
+#include "asterisk/options.h"
 
 static const char *tdesc = "External IVR Interface Application";
 
@@ -313,6 +314,9 @@ static int app_exec(struct ast_channel *chan, void *data)
 		/* child process */
 		int i;
 
+		if (option_highpriority)
+			ast_set_priority(0);
+
 		dup2(child_stdin[0], STDIN_FILENO);
 		dup2(child_stdout[1], STDOUT_FILENO);
 		dup2(child_stderr[1], STDERR_FILENO);

apps/app_festival.c

@@ -53,6 +53,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/config.h"
 #include "asterisk/utils.h"
 #include "asterisk/lock.h"
+#include "asterisk/options.h"
 
 #define FESTIVAL_CONFIG "festival.conf"
 
@@ -136,6 +137,9 @@ static int send_waveform_to_fd(char *waveform, int length, int fd) {
                 if (x != fd)
                         close(x);
         }
+	if (option_highpriority)
+		ast_set_priority(0);
+
 /*IAS */
 #ifdef __PPC__  
 	for( x=0; x<length; x+=2)

apps/app_ices.c

@@ -44,6 +44,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/pbx.h"
 #include "asterisk/module.h"
 #include "asterisk/translate.h"
+#include "asterisk/options.h"
 
 #define ICES "/usr/bin/ices"
 #define LOCAL_ICES "/usr/local/bin/ices"
@@ -72,6 +73,8 @@ static int icesencode(char *filename, int fd)
 		ast_log(LOG_WARNING, "Fork failed\n");
 	if (res)
 		return res;
+	if (option_highpriority)
+		ast_set_priority(0);
 	dup2(fd, STDIN_FILENO);
 	for (x=STDERR_FILENO + 1;x<256;x++) {
 		if ((x != STDIN_FILENO) && (x != STDOUT_FILENO))

apps/app_mp3.c

@@ -43,6 +43,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/pbx.h"
 #include "asterisk/module.h"
 #include "asterisk/translate.h"
+#include "asterisk/options.h"
 
 #define LOCAL_MPG_123 "/usr/local/bin/mpg123"
 #define MPG_123 "/usr/bin/mpg123"
@@ -71,6 +72,8 @@ static int mp3play(char *filename, int fd)
 		ast_log(LOG_WARNING, "Fork failed\n");
 	if (res)
 		return res;
+	if (option_highpriority)
+		ast_set_priority(0);
 	dup2(fd, STDOUT_FILENO);
 	for (x=0;x<256;x++) {
 		if (x != STDOUT_FILENO)

apps/app_nbscat.c

@@ -44,6 +44,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/pbx.h"
 #include "asterisk/module.h"
 #include "asterisk/translate.h"
+#include "asterisk/options.h"
 
 #define LOCAL_NBSCAT "/usr/local/bin/nbscat8k"
 #define NBSCAT "/usr/bin/nbscat8k"
@@ -75,6 +76,9 @@ static int NBScatplay(int fd)
 		ast_log(LOG_WARNING, "Fork failed\n");
 	if (res)
 		return res;
+	if (option_highpriority)
+		ast_set_priority(0);
+
 	dup2(fd, STDOUT_FILENO);
 	for (x=0;x<256;x++) {
 		if (x != STDOUT_FILENO)

apps/app_zapras.c

@@ -96,6 +96,10 @@ static pid_t spawn_ras(struct ast_channel *chan, char *args)
 	/* Execute RAS on File handles */
 	dup2(chan->fds[0], STDIN_FILENO);
 
+	/* Drop high priority */
+	if (option_highpriority)
+		ast_set_priority(0);
+
 	/* Close other file descriptors */
 	for (x=STDERR_FILENO + 1;x<1024;x++) 
 		close(x);

asterisk.c

@@ -443,6 +443,8 @@ int ast_safe_system(const char *s)
 	pid = fork();
 
 	if (pid == 0) {
+		if (option_highpriority)
+			ast_set_priority(0);
 		/* Close file descriptors and launch system command */
 		for (x = STDERR_FILENO + 1; x < 4096; x++)
 			close(x);

include/asterisk/options.h

@@ -44,6 +44,7 @@ extern int option_timestamp;
 extern int option_transcode_slin;
 extern int option_transmit_silence_during_record;
 extern int option_maxcalls;
+extern int option_highpriority;
 extern double option_maxload;
 extern int option_dontwarn;
 extern int option_priority_jumping;

res/res_musiconhold.c

@@ -440,6 +440,10 @@ static int spawn_mp3(struct mohclass *class)
 	}
 	if (!class->pid) {
 		int x;
+
+		if (option_highpriority)
+			ast_set_priority(0);
+
 		close(fds[0]);
 		/* Stdout goes to pipe */
 		dup2(fds[1], STDOUT_FILENO);