2 * Copyright (c) 2011 - 2015 Samsung Electronics Co., Ltd All Rights Reserved
4 * Licensed under the Apache License, Version 2.0 (the License);
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an AS IS BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #ifndef __TIZEN_SYSTEM_RUNTIME_INFO_H__
18 #define __TIZEN_SYSTEM_RUNTIME_INFO_H__
29 * @addtogroup CAPI_SYSTEM_RUNTIME_INFO_MODULE
35 * @brief Enumeration for error codes for runtime information.
36 * @since_tizen @if WEARABLE 2.3.1 @else 2.3 @endif
39 RUNTIME_INFO_ERROR_NONE = TIZEN_ERROR_NONE, /**< Successful */
40 RUNTIME_INFO_ERROR_INVALID_PARAMETER = TIZEN_ERROR_INVALID_PARAMETER, /**< Invalid parameter */
41 RUNTIME_INFO_ERROR_OUT_OF_MEMORY = TIZEN_ERROR_OUT_OF_MEMORY, /**< Out of memory */
42 RUNTIME_INFO_ERROR_IO_ERROR = TIZEN_ERROR_IO_ERROR, /**< An input/output error occurred when read value from system */
43 RUNTIME_INFO_ERROR_REMOTE_IO = TIZEN_ERROR_REMOTE_IO, /**< Remote I/O error occured */
44 RUNTIME_INFO_ERROR_PERMISSION_DENIED = TIZEN_ERROR_PERMISSION_DENIED, /**< No permission to use the api */
45 RUNTIME_INFO_ERROR_NOT_SUPPORTED = TIZEN_ERROR_NOT_SUPPORTED, /**< Not supported parameter */
46 RUNTIME_INFO_ERROR_NO_DATA = TIZEN_ERROR_NO_DATA /**< No data available (Since 3.0) */
47 } runtime_info_error_e;
51 * @brief Enumeration for keys for runtime information.
52 * @since_tizen @if WEARABLE 2.3.1 @else 2.3 @endif
55 RUNTIME_INFO_KEY_BLUETOOTH_ENABLED = 2, /**<Indicates whether Bluetooth is enabled. */
56 RUNTIME_INFO_KEY_WIFI_HOTSPOT_ENABLED = 3, /**<Indicates whether Wi-Fi hotspot is enabled. */
57 RUNTIME_INFO_KEY_BLUETOOTH_TETHERING_ENABLED = 4, /**<Indicates whether Bluetooth tethering is enabled. */
58 RUNTIME_INFO_KEY_USB_TETHERING_ENABLED = 5, /**<Indicates whether USB tethering is enabled. */
59 RUNTIME_INFO_KEY_LOCATION_SERVICE_ENABLED = 6, /**<Indicates whether the location service is allowed to use location data from GPS satellites. (Deprecated since 4.0) */
60 RUNTIME_INFO_KEY_LOCATION_NETWORK_POSITION_ENABLED = 8, /**<Indicates whether the location service is allowed to use location data from cellular and Wi-Fi. (Deprecated since 4.0) */
61 RUNTIME_INFO_KEY_PACKET_DATA_ENABLED = 9, /**<Indicates Whether the packet data through 3G network is enabled. */
62 RUNTIME_INFO_KEY_DATA_ROAMING_ENABLED = 10, /**<Indicates whether data roaming is enabled. */
63 RUNTIME_INFO_KEY_VIBRATION_ENABLED = 12, /**<Indicates whether vibration is enabled. */
64 RUNTIME_INFO_KEY_AUDIO_JACK_CONNECTED = 17, /**<Indicates whether audio jack is connected. */
65 RUNTIME_INFO_KEY_GPS_STATUS = 18, /**<Indicates the current status of GPS. */
66 RUNTIME_INFO_KEY_BATTERY_IS_CHARGING = 19, /**<Indicates the battery is currently charging. */
67 RUNTIME_INFO_KEY_TV_OUT_CONNECTED = 20, /**<Indicates whether TV out is connected. */
68 RUNTIME_INFO_KEY_AUDIO_JACK_STATUS = 21, /**<Indicates the current status of audio jack. */
69 RUNTIME_INFO_KEY_USB_CONNECTED = 23, /**<Indicates whether USB is connected. */
70 RUNTIME_INFO_KEY_CHARGER_CONNECTED = 24, /**<Indicates whether charger is connected. */
71 RUNTIME_INFO_KEY_AUTO_ROTATION_ENABLED = 26, /**<Indicates whether auto rotation is enabled. */
76 * @brief Enumeration for Wi-Fi status.
77 * @since_tizen @if WEARABLE 2.3.1 @else 2.3 @endif
80 RUNTIME_INFO_WIFI_STATUS_DISABLED, /**< GPS is disabled. */
81 RUNTIME_INFO_WIFI_STATUS_UNCONNECTED, /**< Wi-Fi is enabled and network connection is not established. */
82 RUNTIME_INFO_WIFI_STATUS_CONNECTED, /**< Network connection is established in Wi-Fi network. */
83 } runtime_info_wifi_status_e;
87 * @brief Enumeration for GPS status.
88 * @since_tizen @if WEARABLE 2.3.1 @else 2.3 @endif
91 RUNTIME_INFO_GPS_STATUS_DISABLED, /**< GPS is disabled. */
92 RUNTIME_INFO_GPS_STATUS_SEARCHING, /**< GPS is searching for satellites. */
93 RUNTIME_INFO_GPS_STATUS_CONNECTED, /**< GPS connection is established. */
94 } runtime_info_gps_status_e;
97 * @brief Enumeration for audio jack status.
98 * @since_tizen @if WEARABLE 2.3.1 @else 2.3 @endif
101 RUNTIME_INFO_AUDIO_JACK_STATUS_UNCONNECTED, /**< Audio jack is not connected */
102 RUNTIME_INFO_AUDIO_JACK_STATUS_CONNECTED_3WIRE, /**< 3-conductor wire is connected. */
103 RUNTIME_INFO_AUDIO_JACK_STATUS_CONNECTED_4WIRE, /**< 4-conductor wire is connected. */
104 } runtime_info_audio_jack_status_e;
108 * @brief Called when the runtime information changes.
109 * @since_tizen @if WEARABLE 2.3.1 @else 2.3 @endif
110 * @param[in] key The type of notification
111 * @param[in] user_data The user data passed from the callback registration function
112 * @pre runtime_info_set_changed_cb() will invoke this callback function.
113 * @see runtime_info_set_changed_cb()
114 * @see runtime_info_unset_changed_cb()
116 typedef void (*runtime_info_changed_cb)(runtime_info_key_e key, void *user_data);
120 * @brief Gets the integer value of the runtime information.
121 * @details This function gets current state of the given key which represents specific runtime information.
122 * @since_tizen @if WEARABLE 2.3.1 @else 2.3 @endif
123 * @param[in] key The runtime information status key from which data should be read
124 * @param[out] value The current value of the given key
125 * @return @c 0 on success,
126 * otherwise a negative error value
127 * @retval #RUNTIME_INFO_ERROR_NONE Successful
128 * @retval #RUNTIME_INFO_ERROR_INVALID_PARAMETER Invalid parameter
129 * @retval #RUNTIME_INFO_ERROR_IO_ERROR An input/output error occurred when read value from system
130 * @retval #RUNTIME_INFO_ERROR_PERMISSION_DENIED No permission to use the api
131 * @retval #RUNTIME_INFO_ERROR_NOT_SUPPORTED Not supported parameter
133 int runtime_info_get_value_int(runtime_info_key_e key, int *value);
137 * @brief Gets the boolean value from the runtime information.
138 * @details This function gets current state of the given key which represents specific runtime information.
139 * @since_tizen @if WEARABLE 2.3.1 @else 2.3 @endif
140 * @param[in] key The runtime information key from which data should be read
141 * @param[out] value The current value of the given key
142 * @return @c 0 on success,
143 * otherwise a negative error value
144 * @retval #RUNTIME_INFO_ERROR_NONE Successful
145 * @retval #RUNTIME_INFO_ERROR_INVALID_PARAMETER Invalid parameter
146 * @retval #RUNTIME_INFO_ERROR_IO_ERROR An input/output error occurred when read value from system
147 * @retval #RUNTIME_INFO_ERROR_PERMISSION_DENIED No permission to use the api
148 * @retval #RUNTIME_INFO_ERROR_NOT_SUPPORTED Not supported parameter
150 int runtime_info_get_value_bool(runtime_info_key_e key, bool *value);
154 * @brief Gets the double value from the runtime information.
155 * @details This function gets current state of the given key which represents specific runtime information.
156 * @since_tizen @if WEARABLE 2.3.1 @else 2.3 @endif
157 * @param[in] key The runtime information key from which data should be read
158 * @param[out] value The current value of the given key
159 * @return @c 0 on success,
160 * otherwise a negative error value
161 * @retval #RUNTIME_INFO_ERROR_NONE Successful
162 * @retval #RUNTIME_INFO_ERROR_INVALID_PARAMETER Invalid parameter
163 * @retval #RUNTIME_INFO_ERROR_IO_ERROR An input/output error occurred when read value from system
164 * @retval #RUNTIME_INFO_ERROR_PERMISSION_DENIED No permission to use the api
165 * @retval #RUNTIME_INFO_ERROR_NOT_SUPPORTED Not supported parameter
167 int runtime_info_get_value_double(runtime_info_key_e key, double *value);
171 * @brief Gets the string value for specified runtime information.
172 * @details This function gets current state of the given key which represents specific runtime information.
173 * @since_tizen @if WEARABLE 2.3.1 @else 2.3 @endif
174 * @remarks You must release @a value using free().
175 * @param[in] key The runtime information key from which data should be read
176 * @param[out] value The current value of the given key
177 * @return @c 0 on success,
178 * otherwise a negative error value
179 * @retval #RUNTIME_INFO_ERROR_NONE Successful
180 * @retval #RUNTIME_INFO_ERROR_INVALID_PARAMETER Invalid parameter
181 * @retval #RUNTIME_INFO_ERROR_IO_ERROR An input/output error occurred when read value from system
182 * @retval #RUNTIME_INFO_ERROR_OUT_OF_MEMORY Out of memory
183 * @retval #RUNTIME_INFO_ERROR_PERMISSION_DENIED No permission to use the api
184 * @retval #RUNTIME_INFO_ERROR_NOT_SUPPORTED Not supported parameter
186 int runtime_info_get_value_string(runtime_info_key_e key, char **value);
190 * @brief Registers a change event callback for given runtime information key.
191 * @since_tizen @if WEARABLE 2.3.1 @else 2.3 @endif
192 * @param[in] key The runtime information type
193 * @param[in] callback The callback function to invoke
194 * @param[in] user_data The user data to be passed to the callback function
195 * @return @c 0 on success,
196 * otherwise a negative error value
197 * @retval #RUNTIME_INFO_ERROR_NONE Successful
198 * @retval #RUNTIME_INFO_ERROR_INVALID_PARAMETER Invalid parameter
199 * @retval #RUNTIME_INFO_ERROR_PERMISSION_DENIED No permission to use the api
200 * @retval #RUNTIME_INFO_ERROR_NOT_SUPPORTED Not supported parameter
201 * @post runtime_info_changed_cb() will be invoked.
202 * @see runtime_info_unset_changed_cb()
203 * @see runtime_info_changed_cb()
205 int runtime_info_set_changed_cb(runtime_info_key_e key, runtime_info_changed_cb callback, void *user_data);
209 * @brief Unregisters the callback function.
210 * @since_tizen @if WEARABLE 2.3.1 @else 2.3 @endif
211 * @param[in] key The runtime information type
212 * @return @c 0 on success,
213 * otherwise a negative error value
214 * @retval #RUNTIME_INFO_ERROR_NONE Successful
215 * @retval #RUNTIME_INFO_ERROR_INVALID_PARAMETER Invalid parameter
216 * @see runtime_info_set_changed_cb()
218 int runtime_info_unset_changed_cb(runtime_info_key_e key);
222 * @brief Structure for memory information.
223 * @since_tizen @if WEARABLE 3.0 @else 2.4 @endif
226 int total; /**< Total memory (KiB) */
227 int used; /**< Used memory (KiB) */
228 int free; /**< Free memory (KiB) */
229 int cache; /**< Cache memory (KiB) */
230 int swap; /**< Swap memory (KiB) */
231 } runtime_memory_info_s;
235 * @brief Gets system memory information.
236 * @since_tizen @if WEARABLE 3.0 @else 2.4 @endif
237 * @param[out] info The system memory information structure
238 * @return @c 0 on success,
239 * otherwise a negative error value
240 * @retval #RUNTIME_INFO_ERROR_NONE Successful
241 * @retval #RUNTIME_INFO_ERROR_INVALID_PARAMETER Invalid parameter
242 * @retval #RUNTIME_INFO_ERROR_IO_ERROR An Input/Output error occurred while reading from system
243 * @see runtime_info_get_process_memory_info()
245 int runtime_info_get_system_memory_info(runtime_memory_info_s *info);
249 * @brief Structure for memory information per process.
250 * @since_tizen @if WEARABLE 3.0 @else 2.4 @endif
253 int vsz; /**< Virtual memory size (KiB) */
254 int rss; /**< Resident set size (KiB) */
255 int pss; /**< Proportional set size (KiB) */
256 int shared_clean; /**< Not modified and mapped by other processes (KiB) */
257 int shared_dirty; /**< Modified and mapped by other processes (KiB) */
258 int private_clean; /**< Not modified and available only to that process (KiB) */
259 int private_dirty; /**< Modified and available only to that process (KiB) */
260 } process_memory_info_s;
264 * @brief Gets memory information per process.
265 * @since_tizen @if WEARABLE 3.0 @else 2.4 @endif
267 * @privilege %http://tizen.org/privilege/systemmonitor
268 * @remarks You must release @a s value using free(). \n
269 * The size of @a s is the same with @a size.
270 * @param[in] pid The process unique id array
271 * @param[in] size The size of pid array
272 * @param[out] info The memory information structure array of the processes
273 * @return @c 0 on success,
274 * otherwise a negative error value
275 * @retval #RUNTIME_INFO_ERROR_NONE Successful
276 * @retval #RUNTIME_INFO_ERROR_INVALID_PARAMETER Invalid parameter
277 * @retval #RUNTIME_INFO_ERROR_OUT_OF_MEMORY Not able to allocate memory (for output param/other operations)
278 * @retval #RUNTIME_INFO_ERROR_REMOTE_IO Call to resource daemon failed (dbus errors/resource daemon errors)
279 * @retval #RUNTIME_INFO_ERROR_IO_ERROR An I/O error during dbus message operations
280 * @retval #RUNTIME_INFO_ERROR_PERMISSION_DENIED Process not authorized to request process usage info
281 * @see runtime_info_get_system_memory_info()
283 int runtime_info_get_process_memory_info(int *pid, int size, process_memory_info_s **info);
287 * @brief Structure for CPU usage.
288 * @since_tizen @if WEARABLE 3.0 @else 2.4 @endif
291 double user; /**< Time running un-niced user processes (Percent) */
292 double system; /**< Time running kernel processes (Percent) */
293 double nice; /**< Time running niced user processes (Percent) */
294 double iowait; /**< Time waiting for I/O completion (Percent) */
295 } runtime_cpu_usage_s;
299 * @brief Gets CPU information.
300 * @since_tizen @if WEARABLE 3.0 @else 2.4 @endif
301 * @param[out] usage The CPU usage structure
302 * @return @c 0 on success,
303 * otherwise a negative error value
304 * @retval #RUNTIME_INFO_ERROR_NONE Successful
305 * @retval #RUNTIME_INFO_ERROR_INVALID_PARAMETER Invalid parameter
306 * @retval #RUNTIME_INFO_ERROR_IO_ERROR An input/output error occurred while reading from system
307 * @see runtime_info_get_process_cpu_usage()
309 int runtime_info_get_cpu_usage(runtime_cpu_usage_s *usage);
313 * @brief Structure for CPU usage per process.
314 * @since_tizen @if WEARABLE 3.0 @else 2.4 @endif
317 int utime; /**< Amount of time that this process has been scheduled in user mode (clock ticks) */
318 int stime; /**< Amount of time that this process has been scheduled in kernel mode (clock ticks) */
319 } process_cpu_usage_s;
323 * @brief Gets CPU usage per process.
324 * @since_tizen @if WEARABLE 3.0 @else 2.4 @endif
326 * @privilege %http://tizen.org/privilege/systemmonitor
327 * @remarks You must release @a s value using free(). \n
328 * The size of @a s is the same with @a size.
329 * @param[in] pid The process unique id array
330 * @param[in] size The size of pid array
331 * @param[out] usage The CPU usage structure array of the processes
332 * @return @c 0 on success,
333 * otherwise a negative error value
334 * @retval #RUNTIME_INFO_ERROR_NONE Successful
335 * @retval #RUNTIME_INFO_ERROR_INVALID_PARAMETER Invalid parameter
336 * @retval #RUNTIME_INFO_ERROR_OUT_OF_MEMORY Not able to allocate memory (for output param/other operations)
337 * @retval #RUNTIME_INFO_ERROR_REMOTE_IO Call to resource daemon failed (dbus errors/resource daemon errors)
338 * @retval #RUNTIME_INFO_ERROR_IO_ERROR An I/O error occurred (during dbus message operations/other IO operations)
339 * @retval #RUNTIME_INFO_ERROR_PERMISSION_DENIED Process not authorized to request process usage info
340 * @see runtime_info_get_cpu_usage()
342 int runtime_info_get_process_cpu_usage(int *pid, int size, process_cpu_usage_s **usage);
346 * @brief Gets the number of processors.
348 * @param[out] num_core The number of whole processors
349 * @retval #RUNTIME_INFO_ERROR_NONE Successful
350 * @retval #RUNTIME_INFO_ERROR_INVALID_PARAMETER Invalid parameter
351 * @retval #RUNTIME_INFO_ERROR_IO_ERROR An I/O error occurred (during file open operation)
353 int runtime_info_get_processor_count(int *num_core);
357 * @brief Gets the current frequency of processor.
359 * @param[in] core_idx The index (from 0) of CPU core that you want to know the frequency
360 * @param[out] cpu_freq The current frequency(MHz) of processor
361 * @retval #RUNTIME_INFO_ERROR_NONE Successful
362 * @retval #RUNTIME_INFO_ERROR_INVALID_PARAMETER Invalid parameter
363 * @retval #RUNTIME_INFO_ERROR_IO_ERROR An I/O error occurred (during file open operation)
364 * @retval #RUNTIME_INFO_ERROR_NO_DATA No data available (Since 3.0)
366 int runtime_info_get_processor_current_frequency(int core_idx, int *cpu_freq);
370 * @brief Gets the max frequency of processor.
372 * @param[in] core_idx The index (from 0) of CPU core that you want to know the frequency
373 * @param[out] cpu_freq The max frequency(MHz) of processor
374 * @retval #RUNTIME_INFO_ERROR_NONE Successful
375 * @retval #RUNTIME_INFO_ERROR_INVALID_PARAMETER Invalid parameter
376 * @retval #RUNTIME_INFO_ERROR_IO_ERROR An I/O error occurred (during file open operation)
377 * @retval #RUNTIME_INFO_ERROR_NO_DATA No data available (Since 3.0)
379 int runtime_info_get_processor_max_frequency(int core_idx, int *cpu_freq);
383 * @brief Gets the physical memory size.
386 * @param[out] size Physical memory size (KiB)
388 * @retval #RUNTIME_INFO_ERROR_NONE Successful
389 * @retval #RUNTIME_INFO_ERROR_INVALID_PARAMETER Invalid parameter
390 * @retval #RUNTIME_INFO_ERROR_IO_ERROR An I/O error occurred (during file open operation)
392 int runtime_info_get_physical_memory_size(int *size);
396 * @brief Handle for app usage information.
399 typedef struct app_usages_s *app_usage_h;
403 * @brief Frees an app usage handle.
406 * @param[in] handle App usage handle to free
408 * @retval #RUNTIME_INFO_ERROR_NONE Successful
409 * @retval #RUNTIME_INFO_ERROR_INVALID_PARAMETER Invalid parameter
411 int runtime_info_app_usage_destroy(app_usage_h handle);
415 * @brief Gets the app count from an app usage handle.
418 * @param[in] handle The app usage handle
419 * @param[out] count The number of apps on the app list
421 * @retval #RUNTIME_INFO_ERROR_NONE Successful
422 * @retval #RUNTIME_INFO_ERROR_INVALID_PARAMETER Invalid parameter
424 * @see runtime_info_get_all_apps_memory_usage()
425 * @see runtime_info_get_all_apps_cpu_rate()
427 int runtime_info_app_usage_get_count(app_usage_h handle, int *count);
431 * @brief Gets the app ID from an app usage handle.
434 * @remarks You must release @a appid using free().
436 * @param[in] handle The app usage handle
437 * @param[in] index The index in the app list; should be between 0 and @a count - 1 (inclusive), \n
438 * where @a count is provided by runtime_info_app_usage_get_count()
439 * @param[out] appid The app ID
441 * @retval #RUNTIME_INFO_ERROR_NONE Successful
442 * @retval #RUNTIME_INFO_ERROR_INVALID_PARAMETER Invalid parameter
444 * @see runtime_info_get_all_apps_memory_usage()
445 * @see runtime_info_get_all_apps_cpu_rate()
447 int runtime_info_app_usage_get_appid(app_usage_h handle, int index, char **appid);
451 * @brief Gets resource usage from an app usage handle.
454 * @remarks The meaning of @a usage depends on which function was used to create @a handle.
456 * @param[in] handle The app usage handle
457 * @param[in] index The index in the app list; should be between 0 and @a count - 1 (inclusive), \n
458 * where @a count is provided by runtime_info_app_usage_get_count()
459 * @param[out] usage Resource usage
461 * @retval #RUNTIME_INFO_ERROR_NONE Successful
462 * @retval #RUNTIME_INFO_ERROR_INVALID_PARAMETER Invalid parameter
464 * @see runtime_info_get_all_apps_memory_usage()
465 * @see runtime_info_get_all_apps_cpu_rate()
467 int runtime_info_app_usage_get_usage(app_usage_h handle, int index, unsigned int *usage);
471 * @brief Gets memory usage of all apps.
474 * @privilege %http://tizen.org/privilege/systemmonitor
475 * @remarks You must release @a usage using runtime_info_app_usage_destroy().
477 * @param[out] usage An array of each app's memory usage (KB)
479 * @retval #RUNTIME_INFO_ERROR_NONE Successful
480 * @retval #RUNTIME_INFO_ERROR_INVALID_PARAMETER Invalid parameter
481 * @retval #RUNTIME_INFO_ERROR_OUT_OF_MEMORY Not able to allocate memory (for output param/other operations)
482 * @retval #RUNTIME_INFO_ERROR_REMOTE_IO Call to resource daemon failed (dbus errors/resource daemon errors)
483 * @retval #RUNTIME_INFO_ERROR_IO_ERROR An I/O error during dbus message operations
484 * @retval #RUNTIME_INFO_ERROR_PERMISSION_DENIED Process not authorized to request app usage info
487 * #include <runtime_info.h>
489 * void print_memory_usage(void)
493 * app_usage_h mem_usage_handle;
495 * unsigned int usage;
497 * runtime_info_get_all_apps_memory_usage(&mem_usage_handle);
498 * runtime_info_app_usage_get_count(mem_usage_handle, &count);
500 * for (i = 0; i < count; i++) {
501 * runtime_info_app_usage_get_appid(mem_usage_handle, i, &appid);
502 * runtime_info_app_usage_get_usage(mem_usage_handle, i, &usage);
503 * printf("appid = %s, usage = %u KB\n", appid, usage);
507 * runtime_info_app_usage_destroy(mem_usage_handle);
512 int runtime_info_get_all_apps_memory_usage(app_usage_h *usage);
516 * @brief Gets CPU rate of all apps.
519 * @privilege %http://tizen.org/privilege/systemmonitor
520 * @remarks You must release @a rate using runtime_info_app_usage_destroy().
522 * @param[out] rate An array of each app's CPU usage rate (%), the values are rounded down.
524 * @retval #RUNTIME_INFO_ERROR_NONE Successful
525 * @retval #RUNTIME_INFO_ERROR_INVALID_PARAMETER Invalid parameter
526 * @retval #RUNTIME_INFO_ERROR_OUT_OF_MEMORY Not able to allocate memory (for output param/other operations)
527 * @retval #RUNTIME_INFO_ERROR_REMOTE_IO Call to resource daemon failed (dbus errors/resource daemon errors)
528 * @retval #RUNTIME_INFO_ERROR_IO_ERROR An I/O error during dbus message operations
529 * @retval #RUNTIME_INFO_ERROR_PERMISSION_DENIED Process not authorized to request app usage info
532 * #include <runtime_info.h>
534 * void print_cpu_usage(void)
538 * app_usage_h cpu_rate_handle;
542 * runtime_info_get_all_apps_cpu_rate(&cpu_rate_handle);
543 * runtime_info_app_usage_get_count(cpu_rate_handle, &count);
545 * for (i = 0; i < count; i++) {
546 * runtime_info_app_usage_get_appid(cpu_rate_handle, i, &appid);
547 * runtime_info_app_usage_get_usage(cpu_rate_handle, i, &rate);
548 * printf("appid = %s, rate = %u %%\n", appid, rate);
552 * runtime_info_app_usage_destroy(cpu_rate_handle);
557 int runtime_info_get_all_apps_cpu_rate(app_usage_h *rate);
568 #endif /** __TIZEN_SYSTEM_RUNTIME_INFO_H__ */