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authorLennart Poettering <lennart@poettering.net>2012-05-05 02:06:58 +0200
committerLennart Poettering <lennart@poettering.net>2012-05-08 13:54:23 +0200
commit6edd7d0a09171ea5ae8e01b7b1cbcb0bdfbfeb16 (patch)
tree85a09e06fd5dfc98cb198fafb9a33b70e79a4c63 /src/sleep/sleep.c
parent4943c1c94ba751c98763f4232b4350481b22c90a (diff)
sleep: implement suspend/hibernate as first class targets
Diffstat (limited to 'src/sleep/sleep.c')
-rw-r--r--src/sleep/sleep.c83
1 files changed, 83 insertions, 0 deletions
diff --git a/src/sleep/sleep.c b/src/sleep/sleep.c
new file mode 100644
index 0000000000..7062dc242f
--- /dev/null
+++ b/src/sleep/sleep.c
@@ -0,0 +1,83 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+
+#include "log.h"
+#include "util.h"
+
+int main(int argc, char *argv[]) {
+ const char *verb;
+ char* arguments[4];
+ int r;
+ FILE *f;
+
+ log_set_target(LOG_TARGET_AUTO);
+ log_parse_environment();
+ log_open();
+
+ if (argc != 2) {
+ log_error("Invalid number of arguments.");
+ r = -EINVAL;
+ goto finish;
+ }
+
+ if (streq(argv[1], "suspend"))
+ verb = "mem";
+ else if (streq(argv[1], "hibernate"))
+ verb = "disk";
+ else {
+ log_error("Unknown action '%s'.", argv[1]);
+ r = -EINVAL;
+ goto finish;
+ }
+
+ f = fopen("/sys/power/state", "we");
+ if (!f) {
+ log_error("Failed to open /sys/power/state: %m");
+ r = -errno;
+ goto finish;
+ }
+
+ arguments[0] = NULL;
+ arguments[1] = (char*) "pre";
+ arguments[2] = argv[1];
+ arguments[3] = NULL;
+ execute_directory(SYSTEMD_SLEEP_BINARY_PATH, NULL, arguments);
+
+ fputs(verb, f);
+ fputc('\n', f);
+ fflush(f);
+
+ r = ferror(f) ? -errno : 0;
+
+ arguments[1] = (char*) "post";
+ execute_directory(SYSTEMD_SLEEP_BINARY_PATH, NULL, arguments);
+
+ fclose(f);
+
+finish:
+
+ return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+
+}