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

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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 | 26 ++++++++++++++++++++++----
1 file changed, 22 insertions(+), 4 deletions(-)
--- systemd-206.orig/src/sleep/sleep.c
+++ systemd-206/src/sleep/sleep.c
@@ -24,6 +24,7 @@
#include <errno.h>
#include <string.h>
#include <getopt.h>
+#include <stdlib.h>
#include "systemd/sd-id128.h"
#include "systemd/sd-messages.h"
@@ -35,6 +36,8 @@
#include "sleep-config.h"
static char* arg_verb = NULL;
+static bool delegate_to_pmutils = false;
+static const char *pmtools;
static int write_mode(char **modes) {
int r = 0;
@@ -50,9 +53,6 @@ static int write_mode(char **modes) {
r = k;
}
- if (r < 0)
- log_error("Failed to write mode to /sys/power/disk: %s",
- strerror(-r));
return r;
}
@@ -90,6 +90,8 @@ static int execute(char **modes, char **
_cleanup_fclose_ FILE *f = NULL;
const char* note = strappenda("SLEEP=", arg_verb);
+ if (!delegate_to_pmutils) {
+
/* This file is opened first, so that if we hit an error,
* we can abort before modifying any state. */
f = fopen("/sys/power/state", "we");
@@ -102,6 +104,7 @@ static int execute(char **modes, char **
r = write_mode(modes);
if (r < 0)
return r;
+ }
arguments[0] = NULL;
arguments[1] = (char*) "pre";
@@ -114,8 +117,10 @@ static int execute(char **modes, char **
"MESSAGE=Suspending system...",
note,
NULL);
-
+ if (!delegate_to_pmutils)
r = write_state(&f, states);
+ else
+ r = -system(pmtools);
if (r < 0)
return r;
@@ -158,6 +163,7 @@ static int parse_argv(int argc, char *ar
};
int c;
+ struct stat buf;
assert(argc >= 0);
assert(argv);
@@ -196,6 +202,18 @@ static int parse_argv(int argc, char *ar
return -EINVAL;
}
+ if (streq(arg_verb, "suspend")) {
+ pmtools = "/usr/sbin/pm-suspend";
+ }
+ else if (streq(arg_verb, "hibernate") || streq(arg_verb, "hybrid-sleep")) {
+ if (streq(arg_verb, "hibernate"))
+ pmtools = "/usr/sbin/pm-hibernate";
+ else
+ pmtools = "/usr/sbin/pm-suspend-hybrid";
+ }
+
+ delegate_to_pmutils = (stat(pmtools, &buf) >= 0 && S_ISREG(buf.st_mode) && (buf.st_mode & 0111));
+
return 1 /* work to do */;
}