Add the --kill subcommand.

[dss.git] / dss.c

diff --git a/dss.c b/dss.c
index 01f1bc71648157cf4de5ad085bc945887b81c376..63f5f568fd735a8470f54d8df1663e243de81c06 100644 (file)
--- a/dss.c
+++ b/dss.c
@@ -171,7 +171,8 @@ static void dump_dss_config(const char *msg)
        COMMAND(ls) \
        COMMAND(create) \
        COMMAND(prune) \
-       COMMAND(run)
+       COMMAND(run) \
+       COMMAND(kill)
 #define COMMAND(x) static int com_ ##x(void);
 COMMANDS
 #undef COMMAND
@@ -239,6 +240,25 @@ static char *get_config_file_name(void)
        return config_file;
 }
 
+static int com_kill(void)
+{
+       pid_t pid;
+       char *config_file = get_config_file_name();
+       int ret = get_dss_pid(config_file, &pid);
+
+       free(config_file);
+       if (ret < 0)
+               return ret;
+       if (conf.dry_run_given) {
+               dss_msg("%d\n", (int)pid);
+               return 0;
+       }
+       ret = kill(pid, SIGTERM);
+       if (ret < 0)
+               return -ERRNO_TO_DSS_ERROR(errno);
+       return 1;
+}
+
 static void dss_get_snapshot_list(struct snapshot_list *sl)
 {
        get_snapshot_list(sl, conf.unit_interval_arg, conf.num_intervals_arg);