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127 lines
4.2 KiB
127 lines
4.2 KiB
/*
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* Copyright 2014 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#import "ARDUtilities.h"
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#import <mach/mach.h>
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#import <WebRTC/RTCLogging.h>
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@implementation NSDictionary (ARDUtilites)
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+ (NSDictionary *)dictionaryWithJSONString:(NSString *)jsonString {
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NSParameterAssert(jsonString.length > 0);
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NSData *data = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
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NSError *error = nil;
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NSDictionary *dict =
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[NSJSONSerialization JSONObjectWithData:data options:0 error:&error];
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if (error) {
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RTCLogError(@"Error parsing JSON: %@", error.localizedDescription);
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}
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return dict;
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}
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+ (NSDictionary *)dictionaryWithJSONData:(NSData *)jsonData {
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NSError *error = nil;
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NSDictionary *dict =
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[NSJSONSerialization JSONObjectWithData:jsonData options:0 error:&error];
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if (error) {
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RTCLogError(@"Error parsing JSON: %@", error.localizedDescription);
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}
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return dict;
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}
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@end
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@implementation NSURLConnection (ARDUtilities)
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+ (void)sendAsyncRequest:(NSURLRequest *)request
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completionHandler:(void (^)(NSURLResponse *response,
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NSData *data,
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NSError *error))completionHandler {
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// Kick off an async request which will call back on main thread.
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NSURLSession *session = [NSURLSession sharedSession];
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[[session dataTaskWithRequest:request
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completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
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if (completionHandler) {
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completionHandler(response, data, error);
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}
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}] resume];
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}
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// Posts data to the specified URL.
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+ (void)sendAsyncPostToURL:(NSURL *)url
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withData:(NSData *)data
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completionHandler:(void (^)(BOOL succeeded,
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NSData *data))completionHandler {
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NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
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request.HTTPMethod = @"POST";
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request.HTTPBody = data;
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[[self class] sendAsyncRequest:request
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completionHandler:^(NSURLResponse *response,
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NSData *data,
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NSError *error) {
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if (error) {
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RTCLogError(@"Error posting data: %@", error.localizedDescription);
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if (completionHandler) {
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completionHandler(NO, data);
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}
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return;
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}
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NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;
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if (httpResponse.statusCode != 200) {
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NSString *serverResponse = data.length > 0 ?
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[[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding] :
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nil;
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RTCLogError(@"Received bad response: %@", serverResponse);
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if (completionHandler) {
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completionHandler(NO, data);
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}
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return;
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}
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if (completionHandler) {
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completionHandler(YES, data);
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}
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}];
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}
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@end
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NSInteger ARDGetCpuUsagePercentage() {
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// Create an array of thread ports for the current task.
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const task_t task = mach_task_self();
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thread_act_array_t thread_array;
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mach_msg_type_number_t thread_count;
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if (task_threads(task, &thread_array, &thread_count) != KERN_SUCCESS) {
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return -1;
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}
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// Sum cpu usage from all threads.
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float cpu_usage_percentage = 0;
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thread_basic_info_data_t thread_info_data = {};
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mach_msg_type_number_t thread_info_count;
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for (size_t i = 0; i < thread_count; ++i) {
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thread_info_count = THREAD_BASIC_INFO_COUNT;
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kern_return_t ret = thread_info(thread_array[i],
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THREAD_BASIC_INFO,
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(thread_info_t)&thread_info_data,
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&thread_info_count);
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if (ret == KERN_SUCCESS) {
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cpu_usage_percentage +=
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100.f * (float)thread_info_data.cpu_usage / TH_USAGE_SCALE;
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}
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}
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// Dealloc the created array.
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vm_deallocate(task, (vm_address_t)thread_array,
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sizeof(thread_act_t) * thread_count);
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return lroundf(cpu_usage_percentage);
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}
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