src/shared/sleep-config.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 #include <linux/fiemap.h>
   5 #include "time-util.h"
   6
   7 typedef struct SleepConfig {
   8         bool allow_suspend;         /* AllowSuspend */
   9         bool allow_hibernate;       /* AllowHibernation */
  10         bool allow_s2h;             /* AllowSuspendThenHibernate */
  11         bool allow_hybrid_sleep;    /* AllowHybridSleep */
  12
  13         char **suspend_modes;       /* SuspendMode */
  14         char **suspend_states;      /* SuspendState */
  15         char **hibernate_modes;     /* HibernateMode */
  16         char **hibernate_states;    /* HibernateState */
  17         char **hybrid_modes;        /* HybridSleepMode */
  18         char **hybrid_states;       /* HybridSleepState */
  19
  20         usec_t hibernate_delay_sec; /* HibernateDelaySec */
  21 } SleepConfig;
  22
  23 void free_sleep_config(SleepConfig *sc);
  24 DEFINE_TRIVIAL_CLEANUP_FUNC(SleepConfig*, free_sleep_config);
  25
  26 /* entry in /proc/swaps */
  27 typedef struct SwapEntry {
  28         char *device;
  29         char *type;
  30         uint64_t size;
  31         uint64_t used;
  32         int priority;
  33 } SwapEntry;
  34
  35 SwapEntry* swap_entry_free(SwapEntry *se);
  36 DEFINE_TRIVIAL_CLEANUP_FUNC(SwapEntry*, swap_entry_free);
  37
  38 /*
  39  * represents values for /sys/power/resume & /sys/power/resume_offset
  40  * and the matching /proc/swap entry.
  41  */
  42 typedef struct HibernateLocation {
  43         dev_t devno;
  44         uint64_t offset;
  45         SwapEntry *swap;
  46 } HibernateLocation;
  47
  48 HibernateLocation* hibernate_location_free(HibernateLocation *hl);
  49 DEFINE_TRIVIAL_CLEANUP_FUNC(HibernateLocation*, hibernate_location_free);
  50
  51 int sleep_settings(const char *verb, const SleepConfig *sleep_config, bool *ret_allow, char ***ret_modes, char ***ret_states);
  52
  53 int read_fiemap(int fd, struct fiemap **ret);
  54 int parse_sleep_config(SleepConfig **sleep_config);
  55 int find_hibernate_location(HibernateLocation **ret_hibernate_location);
  56
  57 int can_sleep(const char *verb);
  58 int can_sleep_disk(char **types);
  59 int can_sleep_state(char **types);