systemd/Forward-suspend-hibernate-calls-to-pm-utils.patch

103 lines
3.1 KiB
Diff

From: Frederic Crozat <fcrozat@suse.com>
Date: Tue, 19 Feb 2013 11:20:31 +0100
Subject: Forward suspend / hibernate calls to pm-utils
forward suspend/hibernation calls to pm-utils, if installed (bnc#790157)
---
src/sleep/sleep.c | 27 ++++++++++++++++++++++++---
1 file changed, 24 insertions(+), 3 deletions(-)
diff --git a/src/sleep/sleep.c b/src/sleep/sleep.c
index 0707625..91cbdf9 100644
--- a/src/sleep/sleep.c
+++ b/src/sleep/sleep.c
@@ -22,6 +22,7 @@
#include <stdio.h>
#include <errno.h>
#include <string.h>
+#include <stdlib.h>
#include "log.h"
#include "util.h"
@@ -32,6 +33,9 @@
int main(int argc, char *argv[]) {
const char *verb;
char* arguments[4];
+ const char *pmtools;
+ bool delegate_to_pmutils = false;
+ struct stat buf;
int r;
FILE *f;
@@ -45,17 +49,27 @@ int main(int argc, char *argv[]) {
goto finish;
}
- if (streq(argv[1], "suspend"))
+ if (streq(argv[1], "suspend")) {
verb = "mem";
- else if (streq(argv[1], "hibernate") || streq(argv[1], "hybrid-sleep"))
+ pmtools = "/usr/sbin/pm-suspend";
+ }
+ else if (streq(argv[1], "hibernate") || streq(argv[1], "hybrid-sleep")) {
verb = "disk";
+ if (streq(argv[1], "hibernate"))
+ pmtools = "/usr/sbin/pm-hibernate";
+ else
+ pmtools = "/usr/sbin/pm-suspend-hybrid";
+ }
else {
log_error("Unknown action '%s'.", argv[1]);
r = -EINVAL;
goto finish;
}
+ delegate_to_pmutils = (stat(pmtools, &buf) >= 0 && S_ISREG(buf.st_mode) && (buf.st_mode & 0111));
+
/* Configure the hibernation mode */
+ if (!delegate_to_pmutils) {
if (streq(argv[1], "hibernate")) {
if (write_one_line_file("/sys/power/disk", "platform") < 0)
write_one_line_file("/sys/power/disk", "shutdown");
@@ -65,13 +79,14 @@ int main(int argc, char *argv[]) {
write_one_line_file("/sys/power/disk", "shutdown");
}
+
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];
@@ -97,11 +112,16 @@ int main(int argc, char *argv[]) {
"SLEEP=hybrid-sleep",
NULL);
+ if (delegate_to_pmutils) {
+ r = -system(pmtools);
+ }
+ else {
fputs(verb, f);
fputc('\n', f);
fflush(f);
r = ferror(f) ? -errno : 0;
+ }
if (streq(argv[1], "suspend"))
log_struct(LOG_INFO,
@@ -119,6 +139,7 @@ int main(int argc, char *argv[]) {
arguments[1] = (char*) "post";
execute_directory(SYSTEM_SLEEP_PATH, NULL, arguments);
+ if (!delegate_to_pmutils)
fclose(f);
finish: