config: read flush.cfg when elm_config_all_flush is called.

When elm_config_all_flush is called, another processes should get
the config of current process instead of saved base.cfg.
so current process save the config to flush.cfg and another processes
read it when it is changed.

@fix

Change-Id: I49c18257dc327662cfca44c9ea82077128e3f519
origin: upstream

diff --git a/src/lib/elm_config.c b/src/lib/elm_config.c
index ecead8fa491b95987cc07be5d4d9304dfe7f541f..bd674a2eaff0cef190b929232d1dabff0a9976e0 100644 (file)
--- a/src/lib/elm_config.c
+++ b/src/lib/elm_config.c
@@ -115,7 +115,6 @@ static void        _config_free(Elm_Config *cfg);
 static void        _config_apply(void);
 static void        _config_sub_apply(void);
 static void        _config_update(void);
-static void        _config_get(void);
 static void        _env_get(void);
 static void        _color_overlays_cancel(void);
 
@@ -1462,13 +1461,53 @@ _config_load(void)
 }
 
 static void
-_config_get(void)
+_config_flush_load(void)
+{
+   Elm_Config *cfg = NULL;
+   Eet_File *ef;
+   char buf[PATH_MAX];
+
+   _elm_config_user_dir_snprintf(buf, sizeof(buf), "config/flush.cfg");
+
+   ef = eet_open(buf, EET_FILE_MODE_READ);
+   if (ef)
+     {
+        cfg = eet_data_read(ef, _config_edd, "config");
+        eet_close(ef);
+     }
+
+   if (cfg)
+     {
+        size_t len;
+
+        len = _elm_config_user_dir_snprintf(buf, sizeof(buf), "themes/");
+        if (len + 1 < sizeof(buf))
+          ecore_file_mkpath(buf);
+
+        _elm_config = cfg;
+
+        if ((_elm_config->config_version >> ELM_CONFIG_VERSION_EPOCH_OFFSET) < ELM_CONFIG_EPOCH)
+           {
+              WRN("User's elementary config seems outdated and unusable. Fallback to load system config.");
+              _config_free(_elm_config);
+              _elm_config = NULL;
+           }
+        else
+          {
+             if (_elm_config->config_version < ELM_CONFIG_VERSION)
+               _config_update();
+          }
+     }
+}
+
+static void
+_config_flush_get(void)
 {
    _elm_config_font_overlays_cancel();
    _color_overlays_cancel();
    _config_free(_elm_config);
    _elm_config = NULL;
-   _config_load();
+   _config_flush_load();
    _env_get();
    _config_apply();
    _config_sub_apply();
@@ -3051,16 +3090,83 @@ elm_config_audio_mute_set(Edje_Channel channel, Eina_Bool mute)
 EAPI void
 elm_config_all_flush(void)
 {
-   FILE *f;
-   char buf[PATH_MAX];
+   char buf[4096], buf2[4096];
+   int ok = 0, ret;
+   const char *err;
+   Eet_File *ef;
+   size_t len;
+
+   len = _elm_config_user_dir_snprintf(buf, sizeof(buf), "themes/");
+   if (len + 1 >= sizeof(buf))
+     return;
+
+   ok = ecore_file_mkpath(buf);
+   if (!ok)
+     {
+        ERR("Problem accessing Elementary's user configuration directory: %s",
+            buf);
+        return;
+     }
+
+   len = _elm_config_user_dir_snprintf(buf, sizeof(buf), "config");
+   if (len + 1 >= sizeof(buf))
+     return;
+
+   ok = ecore_file_mkpath(buf);
+   if (!ok)
+     {
+        ERR("Problem accessing Elementary's user configuration directory: %s",
+            buf);
+        return;
+     }
+
+   if (!_elm_config_profile_save())
+     return;
+
+   buf[len] = '/';
+   len++;
+
+   if (len + sizeof("flush.cfg") >= sizeof(buf) - len)
+     return;
+
+   memcpy(buf + len, "flush.cfg", sizeof("flush.cfg"));
+   len += sizeof("flush.cfg") - 1;
+
+   if (len + sizeof(".tmp") >= sizeof(buf))
+     return;
+
+   memcpy(buf2, buf, len);
+   memcpy(buf2 + len, ".tmp", sizeof(".tmp"));
+
+   ef = eet_open(buf2, EET_FILE_MODE_WRITE);
+   if (!ef)
+     return;
 
-   _elm_config_user_dir_snprintf(buf, sizeof(buf), "config/flush");
-   f = fopen(buf, "w+");
-   if (f)
+   ok = eet_data_write(ef, _config_edd, "config", _elm_config, 1);
+   if (!ok)
+     goto err;
+
+   err = _elm_config_eet_close_error_get(ef, buf2);
+   if (err)
      {
-        fprintf(f, "flush");
-        fclose(f);
+        ERR("%s", err);
+        free((void *)err);
+        goto err;
      }
+
+   ret = ecore_file_mv(buf2, buf);
+   if (!ret)
+     {
+        ERR("Error saving Elementary's configuration file");
+        goto err;
+     }
+
+   ecore_file_unlink(buf2);
+   return;
+
+err:
+   ecore_file_unlink(buf2);
+   return;
 }
 
 static void
@@ -3122,7 +3228,10 @@ _elm_config_sub_shutdown(void)
 static Eina_Bool
 _config_change_delay_cb(void *data EINA_UNUSED)
 {
-   _config_get();
+   char buf[PATH_MAX];
+
+   _elm_config_user_dir_snprintf(buf, sizeof(buf), "config/flush.cfg");
+   if (ecore_file_exists(buf)) _config_flush_get();
    _config_change_delay_timer = NULL;
 
    return ECORE_CALLBACK_CANCEL;
@@ -3217,7 +3326,7 @@ _elm_config_sub_init(void)
    int ok = 0;
 
    len = _elm_config_user_dir_snprintf(buf, sizeof(buf), "config/");
-   if (len + 6 >= sizeof(buf)) // the space to add "flush"
+   if (len + 10 >= sizeof(buf)) // the space to add "flush.cfg"
      goto end;
 
    ok = ecore_file_mkpath(buf);
@@ -3228,18 +3337,9 @@ _elm_config_sub_init(void)
         goto end;
      }
 
-   strcat(buf, "flush");
-   if (!ecore_file_exists(buf))
-     {
-        FILE *f = fopen(buf, "w+");
+   strcat(buf, "flush.cfg");
+   if (!ecore_file_exists(buf)) elm_config_all_flush();
 
-        if (f)
-          {
-             fprintf(f, "flush");
-             fclose(f);
-             goto end;
-          }
-     }
    _eio_monitor = eio_monitor_add(buf);
    ecore_event_handler_add(EIO_MONITOR_FILE_MODIFIED, _elm_config_file_monitor_cb, NULL);