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* Copyright 2015 The WebRTC Project Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
#if defined(WEBRTC_IOS)
#if !defined(__has_feature) || !__has_feature(objc_arc)
#error "This file requires ARC support."
#import <Foundation/Foundation.h>
#include <string.h>
#include "webrtc/base/checks.h"
#include "webrtc/typedefs.h"
namespace webrtc {
namespace test {
// TODO(henrika): move to shared location.
// See for details.
NSString* NSStringFromStdString(const std::string& stdString) {
// std::string may contain null termination character so we construct
// using length.
return [[NSString alloc]
std::string StdStringFromNSString(NSString* nsString) {
NSData* charData = [nsString dataUsingEncoding:NSUTF8StringEncoding];
return std::string(reinterpret_cast<const char*>([charData bytes]),
[charData length]);
// For iOS, resource files are added to the application bundle in the root
// and not in separate folders as is the case for other platforms. This method
// therefore removes any prepended folders and uses only the actual file name.
std::string IOSResourcePath(std::string name, std::string extension) {
@autoreleasepool {
NSString* path = NSStringFromStdString(name);
NSString* fileName = path.lastPathComponent;
NSString* fileType = NSStringFromStdString(extension);
// Get full pathname for the resource identified by the name and extension.
NSString* pathString = [[NSBundle mainBundle] pathForResource:fileName
return StdStringFromNSString(pathString);
// For iOS, we don't have access to the output directory. Return the path to the
// temporary directory instead. This is mostly used by tests that need to write
// output files to disk.
std::string IOSOutputPath() {
@autoreleasepool {
NSString* tempDir = NSTemporaryDirectory();
if (tempDir == nil)
tempDir = @"/tmp";
return StdStringFromNSString(tempDir);
} // namespace test
} // namespace webrtc
#endif // defined(WEBRTC_IOS)