X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;ds=sidebyside;f=main.cpp;h=be3e8ebcce8e81ca462c34937b3068cdc12e24b1;hb=9abaf929b9da3158e9b7f799775ac56e88d28740;hp=b927237529034ec01984150434ad9d713886c5b7;hpb=e283929bce32fec5c08fc4344a9700f4406d2cc5;p=cubemap

diff --git a/main.cpp b/main.cpp
index b927237..be3e8eb 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,6 +1,7 @@
 #include <assert.h>
 #include <errno.h>
 #include <getopt.h>
+#include <limits.h>
 #include <signal.h>
 #include <stddef.h>
 #include <stdio.h>
@@ -15,6 +16,7 @@
 #include <utility>
 #include <vector>
 
+#include "accesslog.h"
 #include "acceptor.h"
 #include "config.h"
 #include "input.h"
@@ -28,6 +30,7 @@
 
 using namespace std;
 
+AccessLogThread *access_log = NULL;
 ServerPool *servers = NULL;
 volatile bool hupped = false;
 volatile bool stopped = false;
@@ -269,19 +272,51 @@ int main(int argc, char **argv)
 		config_filename = argv[optind++];
 	}
 
+	// Canonicalize argv[0] and config_filename.
+	char argv0_canon[PATH_MAX];
+	char config_filename_canon[PATH_MAX];
+
+	if (realpath(argv[0], argv0_canon) == NULL) {
+		log_perror(argv[0]);
+		exit(1);
+	}
+	if (realpath(config_filename.c_str(), config_filename_canon) == NULL) {
+		log_perror(config_filename.c_str());
+		exit(1);
+	}
+
+	// Now parse the configuration file.
 	Config config;
-	if (!parse_config(config_filename, &config)) {
+	if (!parse_config(config_filename_canon, &config)) {
 		exit(1);
 	}
 	if (test_config) {
 		exit(0);
 	}
+	
+	// Ideally we'd like to daemonize only when we've started up all threads etc.,
+	// but daemon() forks, which is not good in multithreaded software, so we'll
+	// have to do it here.
+	if (config.daemonize) {
+		if (daemon(0, 0) == -1) {
+			log_perror("daemon");
+			exit(1);
+		}
+	}
 
 start:
 	// Open logs as soon as possible.
 	open_logs(config.log_destinations);
 
 	log(INFO, "Cubemap " SERVER_VERSION " starting.");
+	if (config.access_log_file.empty()) {
+		// Create a dummy logger.
+		access_log = new AccessLogThread();
+	} else {
+		access_log = new AccessLogThread(config.access_log_file);
+	}
+	access_log->run();
+
 	servers = new ServerPool(config.num_servers);
 
 	CubemapStateProto loaded_state;
@@ -395,6 +430,8 @@ start:
 		}
 	}
 	delete servers;
+	access_log->stop();
+	delete access_log;
 	shut_down_logging();
 
 	if (stopped) {
@@ -402,7 +439,7 @@ start:
 	}
 
 	// OK, so the signal was SIGHUP. Check that the new config is okay, then exec the new binary.
-	if (!dry_run_config(argv[0], config_filename)) {
+	if (!dry_run_config(argv0_canon, config_filename_canon)) {
 		open_logs(config.log_destinations);
 		log(ERROR, "%s --test-config failed. Restarting old version instead of new.", argv[0]);
 		hupped = false;
@@ -414,10 +451,10 @@ start:
 	sprintf(buf, "%d", state_fd);
 
 	for ( ;; ) {
-		execlp(argv[0], argv[0], config_filename.c_str(), "--state", buf, NULL);
+		execlp(argv0_canon, argv0_canon, config_filename_canon, "--state", buf, NULL);
 		open_logs(config.log_destinations);
 		log_perror("execlp");
-		log(ERROR, "re-exec of %s failed. Waiting 0.2 seconds and trying again...", argv[0]);
+		log(ERROR, "re-exec of %s failed. Waiting 0.2 seconds and trying again...", argv0_canon);
 		shut_down_logging();
 		usleep(200000);
 	}