#include "time.h"
#include "snap.h"
-
+/** Command line and config file options. */
static struct gengetopt_args_info conf;
+/** Non-NULL if we log to a file. */
static FILE *logfile;
+/** The read end of the signal pipe */
static int signal_pipe;
-
/** Process id of current rsync process. */
static pid_t rsync_pid;
/** Whether the rsync process is currently stopped */
/** Process id of current rm process. */
static pid_t rm_pid;
/** When the next snapshot is due. */
-struct timeval next_snapshot_time;
+static struct timeval next_snapshot_time;
/** The pid of the pre-create hook. */
-pid_t pre_create_hook_pid;
+static pid_t pre_create_hook_pid;
/** The pid of the post-create hook. */
-pid_t post_create_hook_pid;
-/* Creation time of the snapshot currently being created. */
-int64_t current_snapshot_creation_time;
-
+static pid_t post_create_hook_pid;
+/** Creation time of the snapshot currently being created. */
+static int64_t current_snapshot_creation_time;
+/** Needed by the post-create hook. */
static char *path_to_last_complete_snapshot;
-
+/** \sa \ref snap.h for details. */
static unsigned snapshot_creation_status;
COMMAND(create) \
COMMAND(prune) \
COMMAND(run)
-#define COMMAND(x) int com_ ##x(void);
+#define COMMAND(x) static int com_ ##x(void);
COMMANDS
#undef COMMAND
#define COMMAND(x) if (conf.x ##_given) return com_ ##x();
-int call_command_handler(void)
+static int call_command_handler(void)
{
COMMANDS
DSS_EMERG_LOG("BUG: did not find command handler\n");
#undef COMMAND
#undef COMMANDS
+/**
+ * The log function of dss.
+ *
+ * \param ll Loglevel.
+ * \param fml Usual format string.
+ *
+ * All DSS_XXX_LOG() macros use this function.
+ */
__printf_2_3 void dss_log(int ll, const char* fmt,...)
{
va_list argp;
/**
* Print a message either to stdout or to the log file.
*/
-__printf_1_2 void dss_msg(const char* fmt,...)
+static __printf_1_2 void dss_msg(const char* fmt,...)
{
FILE *outfd = conf.daemon_given? logfile : stdout;
va_list argp;
}
/* TODO: Also consider number of inodes. */
-int disk_space_low(void)
+static int disk_space_low(void)
{
struct disk_space ds;
int ret = get_disk_space(".", &ds);
return 0;
}
-void dss_get_snapshot_list(struct snapshot_list *sl)
+static void dss_get_snapshot_list(struct snapshot_list *sl)
{
get_snapshot_list(sl, conf.unit_interval_arg, conf.num_intervals_arg);
}
-void compute_next_snapshot_time(void)
+static void compute_next_snapshot_time(void)
{
struct timeval now, unit_interval = {.tv_sec = 24 * 3600 * conf.unit_interval_arg},
tmp, diff;
}
-int remove_snapshot(struct snapshot *s)
+static int remove_snapshot(struct snapshot *s)
{
int fds[3] = {0, 0, 0};
assert(!rm_pid);
/*
* return: 0: no redundant snapshots, 1: rm process started, negative: error
*/
-int remove_redundant_snapshot(struct snapshot_list *sl)
+static int remove_redundant_snapshot(struct snapshot_list *sl)
{
int ret, i, interval;
struct snapshot *s;
return 0;
}
-int remove_outdated_snapshot(struct snapshot_list *sl)
+static int remove_outdated_snapshot(struct snapshot_list *sl)
{
int i, ret;
struct snapshot *s;
return 0;
}
-int remove_oldest_snapshot(struct snapshot_list *sl)
+static int remove_oldest_snapshot(struct snapshot_list *sl)
{
struct snapshot *s = get_oldest_snapshot(sl);
return remove_snapshot(s);
}
-int rename_incomplete_snapshot(int64_t start)
+static int rename_incomplete_snapshot(int64_t start)
{
char *old_name;
int ret;
return ret;
}
-int try_to_free_disk_space(int low_disk_space)
+static int try_to_free_disk_space(int low_disk_space)
{
int ret;
struct snapshot_list sl;
return ret;
}
-int pre_create_hook(void)
+static int pre_create_hook(void)
{
int ret, fds[3] = {0, 0, 0};
return ret;
}
-int post_create_hook(void)
+static int post_create_hook(void)
{
int ret, fds[3] = {0, 0, 0};
char *cmd;
return ret;
}
-void kill_process(pid_t pid)
+static void kill_process(pid_t pid)
{
if (!pid)
return;
kill(pid, SIGTERM);
}
-void stop_rsync_process(void)
+static void stop_rsync_process(void)
{
if (!rsync_pid || rsync_stopped)
return;
rsync_stopped = 1;
}
-void restart_rsync_process(void)
+static void restart_rsync_process(void)
{
if (!rsync_pid || !rsync_stopped)
return;
/**
* Print a log message about the exit status of a child.
*/
-void log_termination_msg(pid_t pid, int status)
+static void log_termination_msg(pid_t pid, int status)
{
if (WIFEXITED(status))
DSS_INFO_LOG("child %i exited. Exit status: %i\n", (int)pid,
DSS_WARNING_LOG("child %i terminated abormally\n", (int)pid);
}
-int wait_for_process(pid_t pid, int *status)
+static int wait_for_process(pid_t pid, int *status)
{
int ret;
log_termination_msg(pid, *status);
return ret;
}
-int handle_rm_exit(int status)
+
+static int handle_rm_exit(int status)
{
rm_pid = 0;
if (!WIFEXITED(status))
return 1;
}
-int wait_for_rm_process(void)
+static int wait_for_rm_process(void)
{
int status, ret = wait_for_process(rm_pid, &status);
return handle_rm_exit(status);
}
-int handle_rsync_exit(int status)
+static int handle_rsync_exit(int status)
{
int es, ret;
return ret;
}
-int handle_pre_create_hook_exit(int status)
+static int handle_pre_create_hook_exit(int status)
{
int es, ret;
return ret;
}
-int handle_sigchld(void)
+static int handle_sigchld(void)
{
pid_t pid;
int status, ret = reap_child(&pid, &status);
exit(EXIT_FAILURE);
}
-
-int check_config(void)
+static int check_config(void)
{
if (conf.unit_interval_arg <= 0) {
DSS_ERROR_LOG("bad unit interval: %i\n", conf.unit_interval_arg);
}
/* exits on errors */
-void parse_config_file(int override)
+static void parse_config_file(int override)
{
int ret;
char *config_file;
exit(EXIT_FAILURE);
}
-void handle_sighup(void)
+static void handle_sighup(void)
{
DSS_NOTICE_LOG("SIGHUP\n");
parse_config_file(1);
}
-void handle_signal(void)
+static void handle_signal(void)
{
int sig, ret = next_signal();
DSS_ERROR_LOG("%s\n", dss_strerror(-ret));
}
-void create_rsync_argv(char ***argv, int64_t *num)
+static void create_rsync_argv(char ***argv, int64_t *num)
{
char *logname, *newest;
int i = 0, j;
DSS_DEBUG_LOG("argv[%d] = %s\n", j, (*argv)[j]);
}
-void free_rsync_argv(char **argv)
+static void free_rsync_argv(char **argv)
{
int i;
for (i = 0; argv[i]; i++)
free(argv);
}
-int create_snapshot(char **argv)
+static int create_snapshot(char **argv)
{
int ret, fds[3] = {0, 0, 0};
char *name;
return ret;
}
-int select_loop(void)
+static int select_loop(void)
{
int ret;
struct timeval tv = {.tv_sec = 0, .tv_usec = 0};
return ret;
}
-int com_run(void)
+static int com_run(void)
{
int ret;
return select_loop();
}
-int com_prune(void)
+static int com_prune(void)
{
int ret;
struct snapshot_list sl;
return ret;
}
-int com_create(void)
+static int com_create(void)
{
int ret, status;
char **rsync_argv;
return ret;
}
-int com_ls(void)
+static int com_ls(void)
{
int i;
struct snapshot_list sl;
exit(EXIT_FAILURE);
}
-
+/**
+ * The main function of dss.
+ *
+ * \param argc Usual argument count.
+ * \param argv Usual argument vector.
+ */
int main(int argc, char **argv)
{
int ret;
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