Merge branch 'PHP-5.3' into PHP-5.4

* PHP-5.3:
  - Fixed bug #63085 (Systemd integration and daemonize)
  - Fixed bug #62954 (startup problems fpm / php-fpm) - Fixed bug #62886 (PHP-FPM may segfault/hang on startup)

Conflicts:
	sapi/fpm/config.m4

Author: Jerome Loyet

sapi/fpm/config.m4

@@ -42,7 +42,7 @@ struct fpm_globals_s fpm_globals = {
 	.send_config_pipe = {0, 0},
 };
 
-int fpm_init(int argc, char **argv, char *config, char *prefix, char *pid, int test_conf, int run_as_root) /* {{{ */
+int fpm_init(int argc, char **argv, char *config, char *prefix, char *pid, int test_conf, int run_as_root, int force_daemon) /* {{{ */
 {
 	fpm_globals.argc = argc;
 	fpm_globals.argv = argv;
@@ -55,7 +55,7 @@ int fpm_init(int argc, char **argv, char *config, char *prefix, char *pid, int t
 
 	if (0 > fpm_php_init_main()           ||
 	    0 > fpm_stdio_init_main()         ||
-	    0 > fpm_conf_init_main(test_conf) ||
+	    0 > fpm_conf_init_main(test_conf, force_daemon) ||
 	    0 > fpm_unix_init_main()          ||
 	    0 > fpm_scoreboard_init_main()    ||
 	    0 > fpm_pctl_init_main()          ||

sapi/fpm/fpm/fpm.c

@@ -37,7 +37,7 @@
 
 
 int fpm_run(int *max_requests);
-int fpm_init(int argc, char **argv, char *config, char *prefix, char *pid, int test_conf, int run_as_root);
+int fpm_init(int argc, char **argv, char *config, char *prefix, char *pid, int test_conf, int run_as_root, int force_daemon);
 
 struct fpm_globals_s {
 	pid_t parent_pid;

sapi/fpm/fpm/fpm.h

@@ -1115,14 +1115,19 @@ int fpm_conf_write_pid() /* {{{ */
 }
 /* }}} */
 
-static int fpm_conf_post_process(TSRMLS_D) /* {{{ */
+static int fpm_conf_post_process(int force_daemon TSRMLS_DC) /* {{{ */
 {
 	struct fpm_worker_pool_s *wp;
 
 	if (fpm_global_config.pid_file) {
 		fpm_evaluate_full_path(&fpm_global_config.pid_file, NULL, PHP_LOCALSTATEDIR, 0);
 	}
 
+	if (force_daemon >= 0) {
+		/* forced from command line options */
+		fpm_global_config.daemonize = force_daemon;
+	}
+
 	fpm_globals.log_level = fpm_global_config.log_level;
 
 	if (fpm_global_config.process_max < 0) {
@@ -1584,7 +1589,7 @@ static void fpm_conf_dump() /* {{{ */
 }
 /* }}} */
 
-int fpm_conf_init_main(int test_conf) /* {{{ */
+int fpm_conf_init_main(int test_conf, int force_daemon) /* {{{ */
 {
 	int ret;
 	TSRMLS_FETCH();
@@ -1630,7 +1635,7 @@ int fpm_conf_init_main(int test_conf) /* {{{ */
 		return -1;
 	}
 
-	if (0 > fpm_conf_post_process(TSRMLS_C)) {
+	if (0 > fpm_conf_post_process(force_daemon TSRMLS_CC)) {
 		zlog(ZLOG_ERROR, "failed to post process the configuration");
 		return -1;
 	}

sapi/fpm/fpm/fpm_conf.c

@@ -97,7 +97,7 @@ enum {
 	PM_STYLE_ONDEMAND = 3
 };
 
-int fpm_conf_init_main(int test_conf);
+int fpm_conf_init_main(int test_conf, int force_daemon);
 int fpm_worker_pool_config_free(struct fpm_worker_pool_config_s *wpc);
 int fpm_conf_write_pid();
 int fpm_conf_unlink_pid();

sapi/fpm/fpm/fpm_conf.h

@@ -155,6 +155,8 @@ static const opt_struct OPTIONS[] = {
 	{'p', 1, "prefix"},
 	{'g', 1, "pid"},
 	{'R', 0, "allow-to-run-as-root"},
+	{'D', 0, "daemonize"},
+	{'F', 0, "nodaemonize"},
 	{'-', 0, NULL} /* end of args */
 };
 
@@ -912,7 +914,7 @@ static void php_cgi_usage(char *argv0)
 		prog = "php";
 	}
 
-	php_printf(	"Usage: %s [-n] [-e] [-h] [-i] [-m] [-v] [-t] [-p <prefix>] [-g <pid>] [-c <file>] [-d foo[=bar]] [-y <file>]\n"
+	php_printf(	"Usage: %s [-n] [-e] [-h] [-i] [-m] [-v] [-t] [-p <prefix>] [-g <pid>] [-c <file>] [-d foo[=bar]] [-y <file>] [-D] [-F]\n"
 				"  -c <path>|<file> Look for php.ini file in this directory\n"
 				"  -n               No php.ini file will be used\n"
 				"  -d foo[=bar]     Define INI entry foo with value 'bar'\n"
@@ -928,6 +930,9 @@ static void php_cgi_usage(char *argv0)
 				"  -y, --fpm-config <file>\n"
 				"                   Specify alternative path to FastCGI process manager config file.\n"
 				"  -t, --test       Test FPM configuration and exit\n"
+				"  -D, --daemonize  force to run in background, and ignore daemonize option from config file\n"
+				"  -F, --nodaemonize\n"
+				"                   force to stay in foreground, and ignore daemonize option from config file\n"
 				"  -R, --allow-to-run-as-root\n"
 				"                   Allow pool to run as root (disabled by default)\n",
 				prog, PHP_PREFIX);
@@ -1550,6 +1555,7 @@ int main(int argc, char *argv[])
 	char *fpm_prefix = NULL;
 	char *fpm_pid = NULL;
 	int test_conf = 0;
+	int force_daemon = -1;
 	int php_information = 0;
 	int php_allow_to_run_as_root = 0;
 
@@ -1670,6 +1676,14 @@ int main(int argc, char *argv[])
 				php_allow_to_run_as_root = 1;
 				break;
 
+			case 'D': /* daemonize */
+				force_daemon = 1;
+				break;
+
+			case 'F': /* nodaemonize */
+				force_daemon = 0;
+				break;
+
 			default:
 			case 'h':
 			case '?':
@@ -1797,7 +1811,7 @@ consult the installation file that came with this distribution, or visit \n\
 		}
 	}
 
-	if (0 > fpm_init(argc, argv, fpm_config ? fpm_config : CGIG(fpm_config), fpm_prefix, fpm_pid, test_conf, php_allow_to_run_as_root)) {
+	if (0 > fpm_init(argc, argv, fpm_config ? fpm_config : CGIG(fpm_config), fpm_prefix, fpm_pid, test_conf, php_allow_to_run_as_root, force_daemon)) {
 
 		if (fpm_globals.send_config_pipe[1]) {
 			int writeval = 0;

sapi/fpm/fpm/fpm_main.c

@@ -54,7 +54,7 @@ case "$1" in
 	start)
 		echo -n "Starting php-fpm "
 
-		$php_fpm_BIN $php_opts
+		$php_fpm_BIN --daemonize $php_opts
 
 		if [ "$?" != 0 ] ; then
 			echo " failed"

sapi/fpm/init.d.php-fpm.in

@@ -99,6 +99,20 @@ Test FPM configuration file and exit
 If called twice (-tt), the configuration is dumped before exiting.
 .TP
 .PD 0
+.B \-\-daemonize
+.TP
+.PD 1
+.B \-D
+Force to run in background and ignore daemonize option from configuration file.
+.TP
+.PD 0
+.B \-\-nodaemonize
+.TP
+.PD 1
+.B \-F
+Force to stay in foreground and ignore daemonize option from configuration file.
+.TP
+.PD 0
 .B \-\-zend\-extension \fIfile\fP
 .TP
 .PD 1
@@ -113,13 +127,20 @@ The configuration file for the php-fpm daemon.
 .B php.ini
 The standard php configuration file.
 .SH EXAMPLES
-You should use the init script provided to start and stop the php-fpm daemon. This situation applies for any unix systems which use init.d for their main process manager.
+For any unix systems which use init.d for their main process manager, you should use the init script provided to start and stop the php-fpm daemon.
 .P
 .PD 1
 .RS
 sudo /etc/init.d/php-fpm start
 .RE
 .TP
+For any unix systems which use systemd for their main process manager, you should use the unit file provided to start and stop the php-fpm daemon.
+.P
+.PD 1
+.RS
+sudo systemctl start php-fpm.service
+.RE
+.TP
 If your installation has no appropriate init script, launch php-fpm with no arguments. It will launch as a daemon (background process) by default. The file @php_fpm_localstatedir@/run/php-fpm.pid determines whether php-fpm is already up and running. Once started, php-fpm then responds to several POSIX signals:
 .P
 .PD 0