154 lines
3.3 KiB
C++
154 lines
3.3 KiB
C++
// Copyright 2008 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#include "Common/Thread.h"
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#include "Common/CommonFuncs.h"
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#include "Common/CommonTypes.h"
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#ifdef _WIN32
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#include <windows.h>
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#else
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#include <unistd.h>
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#endif
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#ifdef __APPLE__
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#include <mach/mach.h>
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#elif defined BSD4_4 || defined __FreeBSD__ || defined __OpenBSD__
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#include <pthread_np.h>
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#elif defined __HAIKU__
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#include <OS.h>
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#endif
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#ifdef USE_VTUNE
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#include <ittnotify.h>
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#pragma comment(lib, "libittnotify.lib")
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#endif
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namespace Common
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{
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int CurrentThreadId()
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{
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#ifdef _WIN32
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return GetCurrentThreadId();
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#elif defined __APPLE__
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return mach_thread_self();
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#else
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return 0;
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#endif
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}
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#ifdef _WIN32
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void SetThreadAffinity(std::thread::native_handle_type thread, u32 mask)
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{
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SetThreadAffinityMask(thread, mask);
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}
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void SetCurrentThreadAffinity(u32 mask)
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{
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SetThreadAffinityMask(GetCurrentThread(), mask);
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}
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// Supporting functions
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void SleepCurrentThread(int ms)
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{
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Sleep(ms);
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}
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void SwitchCurrentThread()
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{
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SwitchToThread();
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}
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// Sets the debugger-visible name of the current thread.
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// Uses trick documented in:
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// https://docs.microsoft.com/en-us/visualstudio/debugger/how-to-set-a-thread-name-in-native-code
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void SetCurrentThreadName(const char* szThreadName)
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{
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static const DWORD MS_VC_EXCEPTION = 0x406D1388;
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#pragma pack(push, 8)
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struct THREADNAME_INFO
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{
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DWORD dwType; // must be 0x1000
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LPCSTR szName; // pointer to name (in user addr space)
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DWORD dwThreadID; // thread ID (-1=caller thread)
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DWORD dwFlags; // reserved for future use, must be zero
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} info;
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#pragma pack(pop)
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info.dwType = 0x1000;
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info.szName = szThreadName;
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info.dwThreadID = static_cast<DWORD>(-1);
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info.dwFlags = 0;
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__try
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{
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RaiseException(MS_VC_EXCEPTION, 0, sizeof(info) / sizeof(ULONG_PTR), (ULONG_PTR*)&info);
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}
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__except (EXCEPTION_CONTINUE_EXECUTION)
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{
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}
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}
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#else // !WIN32, so must be POSIX threads
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void SetThreadAffinity(std::thread::native_handle_type thread, u32 mask)
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{
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#ifdef __APPLE__
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thread_policy_set(pthread_mach_thread_np(thread), THREAD_AFFINITY_POLICY, (integer_t*)&mask, 1);
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#elif (defined __linux__ || defined BSD4_4 || defined __FreeBSD__) && !(defined ANDROID)
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#ifdef __FreeBSD__
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cpuset_t cpu_set;
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#else
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cpu_set_t cpu_set;
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#endif
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CPU_ZERO(&cpu_set);
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for (int i = 0; i != sizeof(mask) * 8; ++i)
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if ((mask >> i) & 1)
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CPU_SET(i, &cpu_set);
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pthread_setaffinity_np(thread, sizeof(cpu_set), &cpu_set);
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#endif
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}
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void SetCurrentThreadAffinity(u32 mask)
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{
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SetThreadAffinity(pthread_self(), mask);
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}
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void SleepCurrentThread(int ms)
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{
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usleep(1000 * ms);
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}
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void SwitchCurrentThread()
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{
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usleep(1000 * 1);
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}
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void SetCurrentThreadName(const char* szThreadName)
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{
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#ifdef __APPLE__
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pthread_setname_np(szThreadName);
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#elif defined __FreeBSD__ || defined __OpenBSD__
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pthread_set_name_np(pthread_self(), szThreadName);
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#elif defined __HAIKU__
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rename_thread(find_thread(nullptr), szThreadName);
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#else
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// linux doesn't allow to set more than 16 bytes, including \0.
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pthread_setname_np(pthread_self(), std::string(szThreadName).substr(0, 15).c_str());
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#endif
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#ifdef USE_VTUNE
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// VTune uses OS thread names by default but probably supports longer names when set via its own
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// API.
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__itt_thread_set_name(szThreadName);
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#endif
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}
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#endif
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} // namespace Common
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