src/plugin-api/resourced/src/syscommon-plugin-resourced-memory-lmk.c

   1 /**
   2  * MIT License
   3  *
   4  * Copyright (c) 2023 Samsung Electronics Co., Ltd.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is furnished
  11  * to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in all
  14  * copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24
  25 #include <glib.h>
  26
  27 #include "syscommon-plugin-common.h"
  28
  29 #include "common.h"
  30 #include "syscommon-plugin-resourced-memory-lmk.h"
  31 #include "syscommon-plugin-resourced-memory-lmk-interface.h"
  32
  33 #ifndef EXPORT
  34 #define EXPORT __attribute__((visibility("default")))
  35 #endif
  36
  37 static syscommon_plugin_backend_resourced_memory_lmk_funcs *funcs = NULL;
  38
  39 EXPORT
  40 int syscommon_plugin_resourced_memory_lmk_get_backend(void)
  41 {
  42         int ret = 0;
  43
  44         if (funcs)
  45                 return 0;
  46
  47         ret = syscommon_plugin_common_get_backend(
  48                                 SYSCOMMON_PLUGIN_MODULE_RESOURCED_MEMORY_LMK,
  49                                 (void **)&funcs);
  50         if (ret < 0) {
  51                 _E("Failed to get resourced_memory_lmk backend: %d", ret);
  52                 return ret;
  53         }
  54
  55         _I("Success to get resourced_memory_lmk backend: %d", ret);
  56
  57         return 0;
  58 }
  59
  60 EXPORT
  61 int syscommon_plugin_resourced_memory_lmk_put_backend(void)
  62 {
  63         int ret = 0;
  64
  65         if (!funcs)
  66                 return 0;
  67
  68         ret = syscommon_plugin_common_put_backend(
  69                                 SYSCOMMON_PLUGIN_MODULE_RESOURCED_MEMORY_LMK,
  70                                 (void *)funcs);
  71         if (ret < 0) {
  72                 _E("Failed to put resourced_memory_lmk backend: %d", ret);
  73                 return ret;
  74         }
  75         funcs = NULL;
  76
  77         _I("Success to put resourced_memory_lmk backend: %d", ret);
  78
  79         return 0;
  80 }
  81
  82 EXPORT
  83 int syscommon_plugin_resourced_memory_lmk_get_kill_candidates(
  84                                                 GArray *candidates,
  85                                                 GArray *task_info_app_array,
  86                                                 GArray *task_info_proc_array,
  87                                                 unsigned long totalram_kb)
  88 {
  89         int ret = 0;
  90
  91         if (!funcs) {
  92                 ret = syscommon_plugin_resourced_memory_lmk_get_backend();
  93                 if (ret < 0)
  94                         return ret;
  95         }
  96
  97         if (!funcs || !funcs->get_kill_candidates) {
  98                 _E("No backend or no \"get_kill_candidates\" function");
  99                 return -ENOTSUP;
 100         }
 101
 102         return funcs->get_kill_candidates(candidates,
 103                                         task_info_app_array,
 104                                         task_info_proc_array,
 105                                         totalram_kb);
 106 }