X-Git-Url: http://git.tuebingen.mpg.de/?p=dss.git;a=blobdiff_plain;f=dss.c;h=cd69c27d85a5066a49c00817621db6371c01d31e;hp=02d0c8bd5d9e1cc5ef3c5051088a8c99bbe60021;hb=d15fcc8cfc895463cb25c94b5333d309321c82cd;hpb=e83760cba6aba516c3de4bb4ef4df9fa4020ccfa

diff --git a/dss.c b/dss.c
index 02d0c8b..cd69c27 100644
--- a/dss.c
+++ b/dss.c
@@ -1,3 +1,8 @@
+/*
+ * Copyright (C) 2008 Andre Noll <maan@systemlinux.org>
+ *
+ * Licensed under the GPL v2. For licencing details see COPYING.
+ */
 #include <string.h>
 #include <stdlib.h>
 #include <stdarg.h>
@@ -119,7 +124,6 @@ static __printf_1_2 void dss_msg(const char* fmt,...)
 	va_end(argp);
 }
 
-/* TODO: Also consider number of inodes. */
 static int disk_space_low(void)
 {
 	struct disk_space ds;
@@ -214,7 +218,7 @@ static int remove_redundant_snapshot(struct snapshot_list *sl)
 	struct snapshot *s;
 	unsigned missing = 0;
 
-	DSS_INFO_LOG("looking for intervals containing too many snapshots\n");
+	DSS_DEBUG_LOG("looking for intervals containing too many snapshots\n");
 	for (interval = conf.num_intervals_arg - 1; interval >= 0; interval--) {
 		unsigned keep = desired_number_of_snapshots(interval, conf.num_intervals_arg);
 		unsigned num = sl->interval_count[interval];
@@ -271,7 +275,7 @@ static int remove_outdated_snapshot(struct snapshot_list *sl)
 	int i, ret;
 	struct snapshot *s;
 
-	DSS_INFO_LOG("looking for snapshots belonging to intervals greater than %d\n",
+	DSS_DEBUG_LOG("looking for snapshots belonging to intervals greater than %d\n",
 		conf.num_intervals_arg);
 	FOR_EACH_SNAPSHOT(s, i, sl) {
 		if (s->interval <= conf.num_intervals_arg)
@@ -341,7 +345,7 @@ static int try_to_free_disk_space(int low_disk_space)
 	if (ret)
 		goto out;
 	DSS_CRIT_LOG("uhuhu: not enough disk space for a single snapshot\n");
-	ret= -ENOSPC;
+	ret = -ERRNO_TO_DSS_ERROR(ENOSPC);
 out:
 	free_snapshot_list(&sl);
 	return ret;
@@ -629,7 +633,6 @@ static void parse_config_file(int override)
 	}
 	DSS_EMERG_LOG("loglevel: %d\n", conf.loglevel_arg);
 //	cmdline_parser_dump(logfile? logfile : stdout, &conf);
-	ret = dss_chdir(conf.dest_dir_arg);
 out:
 	free(config_file);
 	if (ret >= 0)
@@ -638,10 +641,23 @@ out:
 	exit(EXIT_FAILURE);
 }
 
+static void change_to_dest_dir(void)
+{
+	int ret;
+
+	DSS_INFO_LOG("changing cwd to %s\n", conf.dest_dir_arg);
+	ret = dss_chdir(conf.dest_dir_arg);
+	if (ret >= 0)
+		return;
+	DSS_EMERG_LOG("%s\n", dss_strerror(-ret));
+	exit(EXIT_FAILURE);
+}
+
 static void handle_sighup(void)
 {
 	DSS_NOTICE_LOG("SIGHUP\n");
 	parse_config_file(1);
+	change_to_dest_dir();
 }
 
 static void handle_signal(void)
@@ -693,11 +709,6 @@ static void create_rsync_argv(char ***argv, int64_t *num)
 		free(newest);
 	} else
 		DSS_INFO_LOG("no previous snapshot found\n");
-	if (conf.exclude_patterns_given) {
-		(*argv)[i++] = dss_strdup("--exclude-from");
-		(*argv)[i++] = dss_strdup(conf.exclude_patterns_arg);
-
-	}
 	logname = dss_logname();
 	if (conf.remote_user_given && !strcmp(conf.remote_user_arg, logname))
 		(*argv)[i++] = dss_strdup(conf.source_dir_arg);
@@ -739,21 +750,25 @@ static int create_snapshot(char **argv)
 static int select_loop(void)
 {
 	int ret;
-	struct timeval tv = {.tv_sec = 0, .tv_usec = 0};
+	/* check every 60 seconds for free disk space */
+	struct timeval tv;
 
 	for (;;) {
 		fd_set rfds;
 		int low_disk_space;
 		char **rsync_argv;
-		struct timeval now, *tvp = &tv;
+		struct timeval now, *tvp;
 
-		if (rsync_pid)
-			tv.tv_sec = 60; /* check every 60 seconds for free disk space */
-		else if (rm_pid)
+		if (rm_pid)
 			tvp = NULL; /* sleep until rm process dies */
+		else { /* sleep one minute */
+			tv.tv_sec = 60;
+			tv.tv_usec = 0;
+			tvp = &tv;
+		}
 		FD_ZERO(&rfds);
 		FD_SET(signal_pipe, &rfds);
-		DSS_DEBUG_LOG("tvp: %p, tv_sec: %lu\n", tvp, (long unsigned) tv.tv_sec);
+		DSS_DEBUG_LOG("tvp: %p, tv_sec : %lu\n", tvp, (long unsigned) tv.tv_sec);
 		ret = dss_select(signal_pipe + 1, &rfds, NULL, tvp);
 		if (ret < 0)
 			return ret;
@@ -774,7 +789,7 @@ static int select_loop(void)
 		}
 		restart_rsync_process();
 		gettimeofday(&now, NULL);
-		if (tv_diff(&next_snapshot_time, &now, &tv) > 0)
+		if (tv_diff(&next_snapshot_time, &now, NULL) > 0)
 			continue;
 		switch (snapshot_creation_status) {
 		case SCS_READY:
@@ -965,6 +980,7 @@ int main(int argc, char **argv)
 
 	if (conf.daemon_given)
 		daemon_init();
+	change_to_dest_dir();
 	setup_signal_handling();
 	ret = call_command_handler();
 	if (ret < 0)