common/mm_sound_utils.c

   1 /*
   2  * libmm-sound
   3  *
   4  * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
   5  *
   6  * Contact: Seungbae Shin <seungbae.shin@samsung.com>
   7  *
   8  * Licensed under the Apache License, Version 2.0 (the "License");
   9  * you may not use this file except in compliance with the License.
  10  * You may obtain a copy of the License at
  11  *
  12  * http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing, software
  15  * distributed under the License is distributed on an "AS IS" BASIS,
  16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * See the License for the specific language governing permissions and
  18  * limitations under the License.
  19  *
  20  */
  21
  22 #include <sys/types.h>
  23 #include <fcntl.h>
  24 #include <stdio.h>
  25 #include <unistd.h>
  26 #include <errno.h>
  27 #include <glib.h>
  28
  29 #include <vconf.h>
  30 #include <mm_types.h>
  31 #include <mm_error.h>
  32 #include <mm_debug.h>
  33 #include "../include/mm_sound_private.h"
  34 #include "../include/mm_sound_utils.h"
  35
  36 #define VCONF_KEY_VOLUME_PREFIX                         "file/private/sound/volume"
  37 #define VCONF_KEY_VOLUME_TYPE_SYSTEM            VCONF_KEY_VOLUME_PREFIX"/system"
  38 #define VCONF_KEY_VOLUME_TYPE_NOTIFICATION      VCONF_KEY_VOLUME_PREFIX"/notification"
  39 #define VCONF_KEY_VOLUME_TYPE_ALARM                     VCONF_KEY_VOLUME_PREFIX"/alarm"
  40 #define VCONF_KEY_VOLUME_TYPE_RINGTONE          VCONF_KEY_VOLUME_PREFIX"/ringtone"
  41 #define VCONF_KEY_VOLUME_TYPE_MEDIA                     VCONF_KEY_VOLUME_PREFIX"/media"
  42 #define VCONF_KEY_VOLUME_TYPE_CALL                      VCONF_KEY_VOLUME_PREFIX"/call"
  43 #define VCONF_KEY_VOLUME_TYPE_VOIP                      VCONF_KEY_VOLUME_PREFIX"/voip"
  44 #define VCONF_KEY_VOLUME_TYPE_VOICE             VCONF_KEY_VOLUME_PREFIX"/voice"
  45 #define VCONF_KEY_VOLUME_TYPE_ANDROID           VCONF_KEY_VOLUME_PREFIX"/fixed"
  46
  47 static char *g_volume_vconf[VOLUME_TYPE_MAX] = {
  48         VCONF_KEY_VOLUME_TYPE_SYSTEM,           /* VOLUME_TYPE_SYSTEM */
  49         VCONF_KEY_VOLUME_TYPE_NOTIFICATION,     /* VOLUME_TYPE_NOTIFICATION */
  50         VCONF_KEY_VOLUME_TYPE_ALARM,            /* VOLUME_TYPE_ALARM */
  51         VCONF_KEY_VOLUME_TYPE_RINGTONE,         /* VOLUME_TYPE_RINGTONE */
  52         VCONF_KEY_VOLUME_TYPE_MEDIA,            /* VOLUME_TYPE_MEDIA */
  53         VCONF_KEY_VOLUME_TYPE_CALL,                     /* VOLUME_TYPE_CALL */
  54         VCONF_KEY_VOLUME_TYPE_VOIP,                     /* VOLUME_TYPE_VOIP */
  55         VCONF_KEY_VOLUME_TYPE_VOICE,            /* VOLUME_TYPE_VOICE */
  56         VCONF_KEY_VOLUME_TYPE_ANDROID           /* VOLUME_TYPE_FIXED */
  57 };
  58 static char *g_volume_str[VOLUME_TYPE_MAX] = {
  59         "SYSTEM",
  60         "NOTIFICATION",
  61         "ALARM",
  62         "RINGTONE",
  63         "MEDIA",
  64         "CALL",
  65         "VOIP",
  66         "VOICE",
  67         "FIXED",
  68 };
  69
  70 EXPORT_API
  71 int mm_sound_util_volume_get_value_by_type(volume_type_t type, unsigned int *value)
  72 {
  73         int ret = MM_ERROR_NONE;
  74         int vconf_value = 0;
  75
  76         /* Get volume value from VCONF */
  77         if (vconf_get_int(g_volume_vconf[type], &vconf_value)) {
  78                 debug_error("vconf_get_int(%s) failed..\n", g_volume_vconf[type]);
  79                 return MM_ERROR_SOUND_INTERNAL;
  80         }
  81
  82         *value = vconf_value;
  83         if (ret == MM_ERROR_NONE)
  84                 debug_log("volume_get_value %s %d",  g_volume_str[type], *value);
  85
  86         return ret;
  87 }
  88
  89 EXPORT_API
  90 bool mm_sound_util_is_process_alive(pid_t pid)
  91 {
  92         gchar *tmp = NULL;
  93         int ret = -1;
  94
  95         if (pid > 999999 || pid < 2)
  96                 return false;
  97
  98         if ((tmp = g_strdup_printf("/proc/%d", pid))) {
  99                 ret = access(tmp, F_OK);
 100                 g_free(tmp);
 101         }
 102
 103         if (ret == -1) {
 104                 if (errno == ENOENT) {
 105                         debug_warning("/proc/%d not exist", pid);
 106                         return false;
 107                 } else {
 108                         debug_error("/proc/%d access errno[%d]", pid, errno);
 109
 110                         /* FIXME: error occured but file exists */
 111                         return true;
 112                 }
 113         }
 114
 115         return true;
 116 }