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6edd7d0a LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2012 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <stdio.h> | |
23 | #include <errno.h> | |
24 | #include <string.h> | |
25 | ||
26 | #include "log.h" | |
27 | #include "util.h" | |
877d54e9 LP |
28 | #include "systemd/sd-id128.h" |
29 | #include "systemd/sd-messages.h" | |
6edd7d0a LP |
30 | |
31 | int main(int argc, char *argv[]) { | |
32 | const char *verb; | |
33 | char* arguments[4]; | |
34 | int r; | |
35 | FILE *f; | |
36 | ||
37 | log_set_target(LOG_TARGET_AUTO); | |
38 | log_parse_environment(); | |
39 | log_open(); | |
40 | ||
41 | if (argc != 2) { | |
42 | log_error("Invalid number of arguments."); | |
43 | r = -EINVAL; | |
44 | goto finish; | |
45 | } | |
46 | ||
47 | if (streq(argv[1], "suspend")) | |
48 | verb = "mem"; | |
6524990f | 49 | else if (streq(argv[1], "hibernate") || streq(argv[1], "hybrid-sleep")) |
6edd7d0a LP |
50 | verb = "disk"; |
51 | else { | |
52 | log_error("Unknown action '%s'.", argv[1]); | |
53 | r = -EINVAL; | |
54 | goto finish; | |
55 | } | |
56 | ||
6524990f LP |
57 | /* Configure the hibernation mode */ |
58 | if (streq(argv[1], "hibernate")) { | |
59 | if (write_one_line_file("/sys/power/disk", "platform") < 0) | |
60 | write_one_line_file("/sys/power/disk", "shutdown"); | |
61 | } else if (streq(argv[1], "hybrid-sleep")) { | |
62 | if (write_one_line_file("/sys/power/disk", "suspend") < 0) | |
63 | if (write_one_line_file("/sys/power/disk", "platform") < 0) | |
64 | write_one_line_file("/sys/power/disk", "shutdown"); | |
65 | } | |
66 | ||
6edd7d0a LP |
67 | f = fopen("/sys/power/state", "we"); |
68 | if (!f) { | |
69 | log_error("Failed to open /sys/power/state: %m"); | |
70 | r = -errno; | |
71 | goto finish; | |
72 | } | |
73 | ||
74 | arguments[0] = NULL; | |
75 | arguments[1] = (char*) "pre"; | |
76 | arguments[2] = argv[1]; | |
77 | arguments[3] = NULL; | |
ddcbc873 | 78 | execute_directory(SYSTEM_SLEEP_PATH, NULL, arguments); |
6edd7d0a | 79 | |
eb267289 | 80 | if (streq(argv[1], "suspend")) |
877d54e9 | 81 | log_struct(LOG_INFO, |
1ca6783f | 82 | MESSAGE_ID(SD_MESSAGE_SLEEP_START), |
877d54e9 LP |
83 | "MESSAGE=Suspending system...", |
84 | "SLEEP=suspend", | |
85 | NULL); | |
6524990f | 86 | else if (streq(argv[1], "hibernate")) |
877d54e9 | 87 | log_struct(LOG_INFO, |
1ca6783f | 88 | MESSAGE_ID(SD_MESSAGE_SLEEP_START), |
877d54e9 LP |
89 | "MESSAGE=Hibernating system...", |
90 | "SLEEP=hibernate", | |
91 | NULL); | |
6524990f LP |
92 | else |
93 | log_struct(LOG_INFO, | |
94 | MESSAGE_ID(SD_MESSAGE_SLEEP_START), | |
95 | "MESSAGE=Hibernating and suspending system...", | |
96 | "SLEEP=hybrid-sleep", | |
97 | NULL); | |
eb267289 | 98 | |
6edd7d0a LP |
99 | fputs(verb, f); |
100 | fputc('\n', f); | |
101 | fflush(f); | |
102 | ||
103 | r = ferror(f) ? -errno : 0; | |
104 | ||
eb267289 | 105 | if (streq(argv[1], "suspend")) |
877d54e9 | 106 | log_struct(LOG_INFO, |
1ca6783f | 107 | MESSAGE_ID(SD_MESSAGE_SLEEP_STOP), |
877d54e9 LP |
108 | "MESSAGE=System resumed.", |
109 | "SLEEP=suspend", | |
110 | NULL); | |
eb267289 | 111 | else |
877d54e9 | 112 | log_struct(LOG_INFO, |
1ca6783f | 113 | MESSAGE_ID(SD_MESSAGE_SLEEP_STOP), |
877d54e9 LP |
114 | "MESSAGE=System thawed.", |
115 | "SLEEP=hibernate", | |
116 | NULL); | |
eb267289 | 117 | |
6edd7d0a | 118 | arguments[1] = (char*) "post"; |
ddcbc873 | 119 | execute_directory(SYSTEM_SLEEP_PATH, NULL, arguments); |
6edd7d0a LP |
120 | |
121 | fclose(f); | |
122 | ||
123 | finish: | |
124 | ||
125 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
126 | ||
127 | } |