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| 1 /* |
| 2 * Copyright 2014 The WebRTC Project Authors. All rights reserved. |
| 3 * |
| 4 * Use of this source code is governed by a BSD-style license |
| 5 * that can be found in the LICENSE file in the root of the source |
| 6 * tree. An additional intellectual property rights grant can be found |
| 7 * in the file PATENTS. All contributing project authors may |
| 8 * be found in the AUTHORS file in the root of the source tree. |
| 9 */ |
| 10 |
| 11 #import "ARDUtilities.h" |
| 12 |
| 13 #import <mach/mach.h> |
| 14 |
| 15 #import "WebRTC/RTCLogging.h" |
| 16 |
| 17 @implementation NSDictionary (ARDUtilites) |
| 18 |
| 19 + (NSDictionary *)dictionaryWithJSONString:(NSString *)jsonString { |
| 20 NSParameterAssert(jsonString.length > 0); |
| 21 NSData *data = [jsonString dataUsingEncoding:NSUTF8StringEncoding]; |
| 22 NSError *error = nil; |
| 23 NSDictionary *dict = |
| 24 [NSJSONSerialization JSONObjectWithData:data options:0 error:&error]; |
| 25 if (error) { |
| 26 RTCLogError(@"Error parsing JSON: %@", error.localizedDescription); |
| 27 } |
| 28 return dict; |
| 29 } |
| 30 |
| 31 + (NSDictionary *)dictionaryWithJSONData:(NSData *)jsonData { |
| 32 NSError *error = nil; |
| 33 NSDictionary *dict = |
| 34 [NSJSONSerialization JSONObjectWithData:jsonData options:0 error:&error]; |
| 35 if (error) { |
| 36 RTCLogError(@"Error parsing JSON: %@", error.localizedDescription); |
| 37 } |
| 38 return dict; |
| 39 } |
| 40 |
| 41 @end |
| 42 |
| 43 @implementation NSURLConnection (ARDUtilities) |
| 44 |
| 45 + (void)sendAsyncRequest:(NSURLRequest *)request |
| 46 completionHandler:(void (^)(NSURLResponse *response, |
| 47 NSData *data, |
| 48 NSError *error))completionHandler { |
| 49 // Kick off an async request which will call back on main thread. |
| 50 [NSURLConnection sendAsynchronousRequest:request |
| 51 queue:[NSOperationQueue mainQueue] |
| 52 completionHandler:^(NSURLResponse *response, |
| 53 NSData *data, |
| 54 NSError *error) { |
| 55 if (completionHandler) { |
| 56 completionHandler(response, data, error); |
| 57 } |
| 58 }]; |
| 59 } |
| 60 |
| 61 // Posts data to the specified URL. |
| 62 + (void)sendAsyncPostToURL:(NSURL *)url |
| 63 withData:(NSData *)data |
| 64 completionHandler:(void (^)(BOOL succeeded, |
| 65 NSData *data))completionHandler { |
| 66 NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url]; |
| 67 request.HTTPMethod = @"POST"; |
| 68 request.HTTPBody = data; |
| 69 [[self class] sendAsyncRequest:request |
| 70 completionHandler:^(NSURLResponse *response, |
| 71 NSData *data, |
| 72 NSError *error) { |
| 73 if (error) { |
| 74 RTCLogError(@"Error posting data: %@", error.localizedDescription); |
| 75 if (completionHandler) { |
| 76 completionHandler(NO, data); |
| 77 } |
| 78 return; |
| 79 } |
| 80 NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response; |
| 81 if (httpResponse.statusCode != 200) { |
| 82 NSString *serverResponse = data.length > 0 ? |
| 83 [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding] : |
| 84 nil; |
| 85 RTCLogError(@"Received bad response: %@", serverResponse); |
| 86 if (completionHandler) { |
| 87 completionHandler(NO, data); |
| 88 } |
| 89 return; |
| 90 } |
| 91 if (completionHandler) { |
| 92 completionHandler(YES, data); |
| 93 } |
| 94 }]; |
| 95 } |
| 96 |
| 97 @end |
| 98 |
| 99 NSInteger ARDGetCpuUsagePercentage() { |
| 100 // Create an array of thread ports for the current task. |
| 101 const task_t task = mach_task_self(); |
| 102 thread_act_array_t thread_array; |
| 103 mach_msg_type_number_t thread_count; |
| 104 if (task_threads(task, &thread_array, &thread_count) != KERN_SUCCESS) { |
| 105 return -1; |
| 106 } |
| 107 |
| 108 // Sum cpu usage from all threads. |
| 109 float cpu_usage_percentage = 0; |
| 110 thread_basic_info_data_t thread_info_data = {}; |
| 111 mach_msg_type_number_t thread_info_count; |
| 112 for (size_t i = 0; i < thread_count; ++i) { |
| 113 thread_info_count = THREAD_BASIC_INFO_COUNT; |
| 114 kern_return_t ret = thread_info(thread_array[i], |
| 115 THREAD_BASIC_INFO, |
| 116 (thread_info_t)&thread_info_data, |
| 117 &thread_info_count); |
| 118 if (ret == KERN_SUCCESS) { |
| 119 cpu_usage_percentage += |
| 120 100.f * (float)thread_info_data.cpu_usage / TH_USAGE_SCALE; |
| 121 } |
| 122 } |
| 123 |
| 124 // Dealloc the created array. |
| 125 vm_deallocate(task, (vm_address_t)thread_array, |
| 126 sizeof(thread_act_t) * thread_count); |
| 127 return lroundf(cpu_usage_percentage); |
| 128 } |
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