./tools/notsd-move

1 files changed, 215 insertions, 0 deletions

diff --git a/src/grp-initprogs/grp-sleep/systemd-sleep/sleep.c b/src/grp-initprogs/grp-sleep/systemd-sleep/sleep.c
new file mode 100644
index 0000000000..16ae4c7314
--- /dev/null
+++ b/src/grp-initprogs/grp-sleep/systemd-sleep/sleep.c
@@ -0,0 +1,215 @@
+/***
+  This file is part of systemd.
+
+  Copyright 2012 Lennart Poettering
+  Copyright 2013 Zbigniew Jędrzejewski-Szmek
+
+  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 <errno.h>
+#include <getopt.h>
+#include <stdio.h>
+
+#include <systemd/sd-messages.h>
+
+#include "systemd-basic/def.h"
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/fileio.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/strv.h"
+#include "systemd-basic/util.h"
+#include "systemd-shared/sleep-config.h"
+
+static char* arg_verb = NULL;
+
+static int write_mode(char **modes) {
+        int r = 0;
+        char **mode;
+
+        STRV_FOREACH(mode, modes) {
+                int k;
+
+                k = write_string_file("/sys/power/disk", *mode, 0);
+                if (k == 0)
+                        return 0;
+
+                log_debug_errno(k, "Failed to write '%s' to /sys/power/disk: %m",
+                                *mode);
+                if (r == 0)
+                        r = k;
+        }
+
+        if (r < 0)
+                log_error_errno(r, "Failed to write mode to /sys/power/disk: %m");
+
+        return r;
+}
+
+static int write_state(FILE **f, char **states) {
+        char **state;
+        int r = 0;
+
+        STRV_FOREACH(state, states) {
+                int k;
+
+                k = write_string_stream(*f, *state, true);
+                if (k == 0)
+                        return 0;
+                log_debug_errno(k, "Failed to write '%s' to /sys/power/state: %m",
+                                *state);
+                if (r == 0)
+                        r = k;
+
+                fclose(*f);
+                *f = fopen("/sys/power/state", "we");
+                if (!*f)
+                        return log_error_errno(errno, "Failed to open /sys/power/state: %m");
+        }
+
+        return r;
+}
+
+static int execute(char **modes, char **states) {
+
+        char *arguments[] = {
+                NULL,
+                (char*) "pre",
+                arg_verb,
+                NULL
+        };
+        static const char* const dirs[] = {SYSTEM_SLEEP_PATH, NULL};
+
+        int r;
+        _cleanup_fclose_ FILE *f = NULL;
+
+        /* 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");
+        if (!f)
+                return log_error_errno(errno, "Failed to open /sys/power/state: %m");
+
+        /* Configure the hibernation mode */
+        r = write_mode(modes);
+        if (r < 0)
+                return r;
+
+        execute_directories(dirs, DEFAULT_TIMEOUT_USEC, arguments);
+
+        log_struct(LOG_INFO,
+                   LOG_MESSAGE_ID(SD_MESSAGE_SLEEP_START),
+                   LOG_MESSAGE("Suspending system..."),
+                   "SLEEP=%s", arg_verb,
+                   NULL);
+
+        r = write_state(&f, states);
+        if (r < 0)
+                return r;
+
+        log_struct(LOG_INFO,
+                   LOG_MESSAGE_ID(SD_MESSAGE_SLEEP_STOP),
+                   LOG_MESSAGE("System resumed."),
+                   "SLEEP=%s", arg_verb,
+                   NULL);
+
+        arguments[1] = (char*) "post";
+        execute_directories(dirs, DEFAULT_TIMEOUT_USEC, arguments);
+
+        return r;
+}
+
+static void help(void) {
+        printf("%s COMMAND\n\n"
+               "Suspend the system, hibernate the system, or both.\n\n"
+               "Commands:\n"
+               "  -h --help            Show this help and exit\n"
+               "  --version            Print version string and exit\n"
+               "  suspend              Suspend the system\n"
+               "  hibernate            Hibernate the system\n"
+               "  hybrid-sleep         Both hibernate and suspend the system\n"
+               , program_invocation_short_name);
+}
+
+static int parse_argv(int argc, char *argv[]) {
+        enum {
+                ARG_VERSION = 0x100,
+        };
+
+        static const struct option options[] = {
+                { "help",         no_argument,       NULL, 'h'           },
+                { "version",      no_argument,       NULL, ARG_VERSION   },
+                {}
+        };
+
+        int c;
+
+        assert(argc >= 0);
+        assert(argv);
+
+        while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
+                switch(c) {
+                case 'h':
+                        help();
+                        return 0; /* done */
+
+                case ARG_VERSION:
+                        return version();
+
+                case '?':
+                        return -EINVAL;
+
+                default:
+                        assert_not_reached("Unhandled option");
+                }
+
+        if (argc - optind != 1) {
+                log_error("Usage: %s COMMAND",
+                          program_invocation_short_name);
+                return -EINVAL;
+        }
+
+        arg_verb = argv[optind];
+
+        if (!streq(arg_verb, "suspend") &&
+            !streq(arg_verb, "hibernate") &&
+            !streq(arg_verb, "hybrid-sleep")) {
+                log_error("Unknown command '%s'.", arg_verb);
+                return -EINVAL;
+        }
+
+        return 1 /* work to do */;
+}
+
+int main(int argc, char *argv[]) {
+        _cleanup_strv_free_ char **modes = NULL, **states = NULL;
+        int r;
+
+        log_set_target(LOG_TARGET_AUTO);
+        log_parse_environment();
+        log_open();
+
+        r = parse_argv(argc, argv);
+        if (r <= 0)
+                goto finish;
+
+        r = parse_sleep_config(arg_verb, &modes, &states);
+        if (r < 0)
+                goto finish;
+
+        r = execute(modes, states);
+
+finish:
+        return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+}