chiark / gitweb /
tree-wide: rename config_parse_many to …_nulstr
[elogind.git] / src / shared / sleep-config.c
index b2a0787..a57ebac 100644 (file)
@@ -1,5 +1,3 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
 /***
   This file is part of systemd.
 
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include <stdio.h>
-
-#include "conf-parser.h"
-#include "sleep-config.h"
+//#include <errno.h>
+//#include <stdbool.h>
+//#include <stddef.h>
+//#include <stdio.h>
+//#include <string.h>
+//#include <syslog.h>
+//#include <unistd.h>
+
+#include "alloc-util.h"
+//#include "conf-parser.h"
+//#include "def.h"
+//#include "env-util.h"
+#include "fd-util.h"
 #include "fileio.h"
-#include "log.h"
+//#include "log.h"
+//#include "macro.h"
+#include "parse-util.h"
+#include "sleep-config.h"
+#include "string-util.h"
 #include "strv.h"
-#include "util.h"
 
-int parse_sleep_config(const char *verb, char ***modes, char ***states) {
+#if 0 /// UNNEEDED by elogind
+#define USE(x, y) do { (x) = (y); (y) = NULL; } while (0)
+
+int parse_sleep_config(const char *verb, char ***_modes, char ***_states) {
+
         _cleanup_strv_free_ char
                 **suspend_mode = NULL, **suspend_state = NULL,
                 **hibernate_mode = NULL, **hibernate_state = NULL,
                 **hybrid_mode = NULL, **hybrid_state = NULL;
+        char **modes, **states;
 
         const ConfigTableItem items[] = {
                 { "Sleep",   "SuspendMode",      config_parse_strv,  0, &suspend_mode  },
@@ -41,70 +56,65 @@ int parse_sleep_config(const char *verb, char ***modes, char ***states) {
                 { "Sleep",   "HibernateState",   config_parse_strv,  0, &hibernate_state },
                 { "Sleep",   "HybridSleepMode",  config_parse_strv,  0, &hybrid_mode  },
                 { "Sleep",   "HybridSleepState", config_parse_strv,  0, &hybrid_state },
-                {}};
+                {}
+        };
 
-        int r;
-        FILE _cleanup_fclose_ *f;
-
-        f = fopen(PKGSYSCONFDIR "/sleep.conf", "re");
-        if (!f)
-                log_full(errno == ENOENT ? LOG_DEBUG: LOG_WARNING,
-                         "Failed to open configuration file " PKGSYSCONFDIR "/sleep.conf: %m");
-        else {
-                r = config_parse(NULL, PKGSYSCONFDIR "/sleep.conf", f, "Sleep\0",
-                                 config_item_table_lookup, (void*) items, false, false, NULL);
-                if (r < 0)
-                        log_warning("Failed to parse configuration file: %s", strerror(-r));
-        }
+        config_parse_many_nulstr(PKGSYSCONFDIR "/sleep.conf",
+                          CONF_PATHS_NULSTR("systemd/sleep.conf.d"),
+                          "Sleep\0", config_item_table_lookup, items,
+                          false, NULL);
 
         if (streq(verb, "suspend")) {
                 /* empty by default */
-                *modes = suspend_mode;
+                USE(modes, suspend_mode);
 
                 if (suspend_state)
-                        *states = suspend_state;
+                        USE(states, suspend_state);
                 else
-                        *states = strv_split_nulstr("mem\0standby\0freeze\0");
+                        states = strv_new("mem", "standby", "freeze", NULL);
 
-                suspend_mode = suspend_state = NULL;
         } else if (streq(verb, "hibernate")) {
                 if (hibernate_mode)
-                        *modes = hibernate_mode;
+                        USE(modes, hibernate_mode);
                 else
-                        *modes = strv_split_nulstr("platform\0shutdown\0");
+                        modes = strv_new("platform", "shutdown", NULL);
 
                 if (hibernate_state)
-                        *states = hibernate_state;
+                        USE(states, hibernate_state);
                 else
-                        *states = strv_split_nulstr("disk\0");
+                        states = strv_new("disk", NULL);
 
-                hibernate_mode = hibernate_state = NULL;
         } else if (streq(verb, "hybrid-sleep")) {
                 if (hybrid_mode)
-                        *modes = hybrid_mode;
+                        USE(modes, hybrid_mode);
                 else
-                        *modes = strv_split_nulstr("suspend\0platform\0shutdown\0");
+                        modes = strv_new("suspend", "platform", "shutdown", NULL);
 
                 if (hybrid_state)
-                        *states = hybrid_state;
+                        USE(states, hybrid_state);
                 else
-                        *states = strv_split_nulstr("disk\0");
+                        states = strv_new("disk", NULL);
 
-                hybrid_mode = hybrid_state = NULL;
         } else
                 assert_not_reached("what verb");
 
-        if (!*modes || !*states) {
-                strv_free(*modes);
-                strv_free(*states);
+        if ((!modes && !streq(verb, "suspend")) || !states) {
+                strv_free(modes);
+                strv_free(states);
                 return log_oom();
         }
 
+        *_modes = modes;
+        *_states = states;
         return 0;
 }
+#endif // 0
 
+#if 1 /// Only available in this file for elogind
+static
+#endif // 0
 int can_sleep_state(char **types) {
-        char *w, *state, **type;
+        char **type;
         int r;
         _cleanup_free_ char *p = NULL;
 
@@ -120,19 +130,23 @@ int can_sleep_state(char **types) {
                 return false;
 
         STRV_FOREACH(type, types) {
+                const char *word, *state;
                 size_t l, k;
 
                 k = strlen(*type);
-                FOREACH_WORD_SEPARATOR(w, l, p, WHITESPACE, state)
-                        if (l == k && memcmp(w, *type, l) == 0)
+                FOREACH_WORD_SEPARATOR(word, l, p, WHITESPACE, state)
+                        if (l == k && memcmp(word, *type, l) == 0)
                                 return true;
         }
 
         return false;
 }
 
+#if 1 /// Only available in this file for elogind
+static
+#endif // 0
 int can_sleep_disk(char **types) {
-        char *w, *state, **type;
+        char **type;
         int r;
         _cleanup_free_ char *p = NULL;
 
@@ -148,14 +162,18 @@ int can_sleep_disk(char **types) {
                 return false;
 
         STRV_FOREACH(type, types) {
+                const char *word, *state;
                 size_t l, k;
 
                 k = strlen(*type);
-                FOREACH_WORD_SEPARATOR(w, l, p, WHITESPACE, state) {
-                        if (l == k && memcmp(w, *type, l) == 0)
+                FOREACH_WORD_SEPARATOR(word, l, p, WHITESPACE, state) {
+                        if (l == k && memcmp(word, *type, l) == 0)
                                 return true;
 
-                        if (l == k + 2 && w[0] == '[' && memcmp(w + 1, *type, l - 2) == 0 && w[l-1] == ']')
+                        if (l == k + 2 &&
+                            word[0] == '[' &&
+                            memcmp(word + 1, *type, l - 2) == 0 &&
+                            word[l-1] == ']')
                                 return true;
                 }
         }
@@ -167,12 +185,12 @@ int can_sleep_disk(char **types) {
 
 static int hibernation_partition_size(size_t *size, size_t *used) {
         _cleanup_fclose_ FILE *f;
-        int i;
+        unsigned i;
 
         assert(size);
         assert(used);
 
-        f = fopen("/proc/swaps", "r");
+        f = fopen("/proc/swaps", "re");
         if (!f) {
                 log_full(errno == ENOENT ? LOG_DEBUG : LOG_WARNING,
                          "Failed to retrieve open /proc/swaps: %m");
@@ -190,8 +208,8 @@ static int hibernation_partition_size(size_t *size, size_t *used) {
                 k = fscanf(f,
                            "%ms "   /* device/file */
                            "%ms "   /* type of swap */
-                           "%zd "   /* swap size */
-                           "%zd "   /* used */
+                           "%zu "   /* swap size */
+                           "%zu "   /* used */
                            "%*i\n", /* priority */
                            &dev, &type, &size_field, &used_field);
                 if (k != 4) {
@@ -218,24 +236,29 @@ static int hibernation_partition_size(size_t *size, size_t *used) {
 
 static bool enough_memory_for_hibernation(void) {
         _cleanup_free_ char *active = NULL;
-        unsigned long long act;
-        size_t size, used;
+        unsigned long long act = 0;
+        size_t size = 0, used = 0;
         int r;
 
+#if 0 /// elogind does not allow any bypass, we are never init!
+        if (getenv_bool("SYSTEMD_BYPASS_HIBERNATION_MEMORY_CHECK") > 0)
+                return true;
+#endif // 0
+
         r = hibernation_partition_size(&size, &used);
         if (r < 0)
                 return false;
 
-        r = get_status_field("/proc/meminfo", "\nActive(anon):", &active);
+        r = get_proc_field("/proc/meminfo", "Active(anon)", WHITESPACE, &active);
         if (r < 0) {
-                log_error("Failed to retrieve Active(anon) from /proc/meminfo: %s", strerror(-r));
+                log_error_errno(r, "Failed to retrieve Active(anon) from /proc/meminfo: %m");
                 return false;
         }
 
         r = safe_atollu(active, &act);
         if (r < 0) {
-                log_error("Failed to parse Active(anon) from /proc/meminfo: %s: %s",
-                          active, strerror(-r));
+                log_error_errno(r, "Failed to parse Active(anon) from /proc/meminfo: %s: %m",
+                                active);
                 return false;
         }
 
@@ -246,6 +269,7 @@ static bool enough_memory_for_hibernation(void) {
         return r;
 }
 
+#if 0 /// elogind has to do, or better, *can* do it differently
 int can_sleep(const char *verb) {
         _cleanup_strv_free_ char **modes = NULL, **states = NULL;
         int r;
@@ -263,3 +287,29 @@ int can_sleep(const char *verb) {
 
         return streq(verb, "suspend") || enough_memory_for_hibernation();
 }
+#else
+int can_sleep(Manager *m, const char *verb) {
+
+        assert(streq(verb, "suspend") ||
+               streq(verb, "hibernate") ||
+               streq(verb, "hybrid-sleep"));
+
+        if ( streq(verb, "suspend")
+          && ( !can_sleep_state(m->suspend_state)
+            || !can_sleep_disk(m->suspend_mode) ) )
+                return false;
+
+        if ( streq(verb, "hibernate")
+          && ( !can_sleep_state(m->hibernate_state)
+            || !can_sleep_disk(m->hibernate_mode) ) )
+                return false;
+
+        if ( streq(verb, "hybrid-sleep")
+          && ( !can_sleep_state(m->hybrid_sleep_state)
+            || !can_sleep_disk(m->hybrid_sleep_mode) ) )
+                return false;
+
+
+        return streq(verb, "suspend") || enough_memory_for_hibernation();
+}
+#endif // 0