1afca73055
This was decided to be done in a separate CL from the move that took place in https://codereview.webrtc.org/1587193006/ BUG=webrtc:5420 NOTRY=True TBR=pthatcher@webrtc.org Review URL: https://codereview.webrtc.org/1676923002 Cr-Commit-Position: refs/heads/master@{#11520}
84 lines
2.7 KiB
C++
84 lines
2.7 KiB
C++
/*
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* Copyright (c) 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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#ifndef WEBRTC_MEDIA_BASE_EXECUTABLEHELPERS_H_
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#define WEBRTC_MEDIA_BASE_EXECUTABLEHELPERS_H_
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#if defined(WEBRTC_MAC) && !defined(WEBRTC_IOS)
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#include <mach-o/dyld.h>
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#endif
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#include <string>
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#include "webrtc/base/logging.h"
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#include "webrtc/base/pathutils.h"
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namespace rtc {
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// Returns the path to the running executable or an empty path.
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// TODO(thorcarpenter): Consolidate with FluteClient::get_executable_dir.
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inline Pathname GetExecutablePath() {
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const int32_t kMaxExePathSize = 255;
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#ifdef WIN32
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TCHAR exe_path_buffer[kMaxExePathSize];
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DWORD copied_length = GetModuleFileName(NULL, // NULL = Current process
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exe_path_buffer, kMaxExePathSize);
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if (0 == copied_length) {
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LOG(LS_ERROR) << "Copied length is zero";
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return rtc::Pathname();
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}
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if (kMaxExePathSize == copied_length) {
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LOG(LS_ERROR) << "Buffer too small";
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return rtc::Pathname();
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}
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#ifdef UNICODE
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std::wstring wdir(exe_path_buffer);
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std::string dir_tmp(wdir.begin(), wdir.end());
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rtc::Pathname path(dir_tmp);
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#else // UNICODE
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rtc::Pathname path(exe_path_buffer);
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#endif // UNICODE
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#elif (defined(WEBRTC_MAC) && !defined(WEBRTC_IOS)) || defined(WEBRTC_LINUX)
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char exe_path_buffer[kMaxExePathSize];
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#if defined(WEBRTC_MAC) && !defined(WEBRTC_IOS)
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uint32_t copied_length = kMaxExePathSize - 1;
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if (_NSGetExecutablePath(exe_path_buffer, &copied_length) == -1) {
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LOG(LS_ERROR) << "Buffer too small";
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return rtc::Pathname();
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}
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#elif defined WEBRTC_LINUX
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int32_t copied_length = kMaxExePathSize - 1;
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const char* kProcExeFmt = "/proc/%d/exe";
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char proc_exe_link[40];
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snprintf(proc_exe_link, sizeof(proc_exe_link), kProcExeFmt, getpid());
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copied_length = readlink(proc_exe_link, exe_path_buffer, copied_length);
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if (copied_length == -1) {
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LOG_ERR(LS_ERROR) << "Error reading link " << proc_exe_link;
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return rtc::Pathname();
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}
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if (copied_length == kMaxExePathSize - 1) {
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LOG(LS_ERROR) << "Probably truncated result when reading link "
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<< proc_exe_link;
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return rtc::Pathname();
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}
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exe_path_buffer[copied_length] = '\0';
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#endif // WEBRTC_LINUX
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rtc::Pathname path(exe_path_buffer);
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#else // Android || iOS
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rtc::Pathname path;
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#endif // Mac || Linux
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return path;
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}
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} // namespace rtc
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#endif // WEBRTC_MEDIA_BASE_EXECUTABLEHELPERS_H_
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