fix log file redirect

When running as a daemon it will close stdout/stderr,
so the log file fd should be dup after the daemon succeeds

silly-src/main.c

@@ -8,6 +8,7 @@
 #include <lauxlib.h>
 #include <string.h>
 #include "silly.h"
+#include "silly_daemon.h"
 #include "silly_trace.h"
 #include "silly_log.h"
 #include "silly_timer.h"
@@ -145,6 +146,7 @@ int main(int argc, char *argv[])
 {
 	int status;
 	struct silly_config config;
+	memset(&config, 0, sizeof(config));
 	config.argc = argc;
 	config.argv = argv;
 	config.selfpath = argv[0];
@@ -156,9 +158,11 @@ int main(int argc, char *argv[])
 	strncpy(config.bootstrap, argv[1], ARRAY_SIZE(config.bootstrap) - 1);
 	parse_args(&config, argc, argv);
 	silly_trace_init();
+	silly_daemon_start(&config);
 	silly_log_init(&config);
 	silly_timer_init();
 	status = silly_run(&config);
+	silly_daemon_stop(&config);
 	silly_log_info("%s exit, leak memory size:%zu\n",
 		argv[0], silly_memused());
 	silly_log_flush();

silly-src/silly_run.c

@@ -17,7 +17,6 @@
 #include "silly_worker.h"
 #include "silly_monitor.h"
 #include "silly_signal.h"
-#include "silly_daemon.h"
 
 #include "silly_run.h"
 
@@ -147,13 +146,11 @@ silly_run(const struct silly_config *config)
 	R.exitstatus = 0;
 	pthread_mutex_init(&R.mutex, NULL);
 	pthread_cond_init(&R.cond, NULL);
-	silly_daemon_start(config);
 	silly_signal_init();
 	err = silly_socket_init();
 	if (unlikely(err < 0)) {
 		silly_log_error("%s socket init fail:%d\n", config->selfname, err);
-		silly_daemon_stop(config);
-		exit(-1);
+		return -err;
 	}
 	silly_worker_init();
 	silly_monitor_init();
@@ -168,7 +165,6 @@ silly_run(const struct silly_config *config)
 	for (i = 0; i < 3; i++)
 		pthread_join(pid[i], NULL);
 	silly_log_flush();
-	silly_daemon_stop(config);
 	pthread_mutex_destroy(&R.mutex);
 	pthread_cond_destroy(&R.cond);
 	silly_worker_exit();