88 lines
2.6 KiB
C++
88 lines
2.6 KiB
C++
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/*
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* Copyright (c) 2011 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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#include "cpu_wrapper.h"
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#if defined(_WIN32)
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#include <Windows.h>
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#include "engine_configurations.h"
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#include "cpu_windows.h"
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#elif defined(WEBRTC_MAC)
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#include "cpu_mac.h"
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#elif defined(WEBRTC_MAC_INTEL)
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#include "cpu_mac.h"
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#elif defined(ANDROID)
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// Not implemented yet, might be possible to use Linux implementation
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#else // defined(WEBRTC_LINUX)
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#include <sys/sysinfo.h>
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#include "cpu_linux.h"
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#endif
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#include "trace.h"
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namespace webrtc {
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WebRtc_UWord32 CpuWrapper::_numberOfCores = 0;
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WebRtc_UWord32 CpuWrapper::DetectNumberOfCores()
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{
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if (!_numberOfCores)
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{
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#if defined(_WIN32)
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SYSTEM_INFO si;
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GetSystemInfo(&si);
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_numberOfCores = static_cast<WebRtc_UWord32>(si.dwNumberOfProcessors);
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WEBRTC_TRACE(kTraceStateInfo, kTraceUtility, -1,
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"Available number of cores:%d", _numberOfCores);
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#elif defined(WEBRTC_LINUX) && !defined(ANDROID)
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_numberOfCores = get_nprocs();
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WEBRTC_TRACE(kTraceStateInfo, kTraceUtility, -1,
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"Available number of cores:%d", _numberOfCores);
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#elif (defined(WEBRTC_MAC) || defined(WEBRTC_MAC_INTEL))
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int name[] = {CTL_HW, HW_AVAILCPU};
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int ncpu;
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size_t size = sizeof(ncpu);
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if(0 == sysctl(name, 2, &ncpu, &size, NULL, 0))
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{
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_numberOfCores = static_cast<WebRtc_UWord32>(ncpu);
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WEBRTC_TRACE(kTraceStateInfo, kTraceUtility, -1,
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"Available number of cores:%d", _numberOfCores);
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} else
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{
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WEBRTC_TRACE(kTraceError, kTraceUtility, -1,
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"Failed to get number of cores");
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_numberOfCores = 1;
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}
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#else
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WEBRTC_TRACE(kTraceWarning, kTraceUtility, -1,
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"No function to get number of cores");
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_numberOfCores = 1;
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#endif
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}
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return _numberOfCores;
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}
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CpuWrapper* CpuWrapper::CreateCpu()
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{
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#if defined(_WIN32)
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return new CpuWindows();
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#elif (defined(WEBRTC_MAC) || defined(WEBRTC_MAC_INTEL))
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return new CpuWrapperMac();
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#elif defined(ANDROID)
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return 0;
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#else
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return new CpuLinux();
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#endif
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}
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} // namespace webrtc
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