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// Copyright 2008 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "Common/CommonFuncs.h"
#include "Common/CommonTypes.h"
#include "Common/Thread.h"
#ifndef _WIN32
#include <unistd.h>
#endif
#ifdef __APPLE__
#include <mach/mach.h>
#elif defined BSD4_4 || defined __FreeBSD__
#include <pthread_np.h>
#endif
#ifdef USE_VTUNE
#include <ittnotify.h>
#pragma comment(lib, "libittnotify.lib")
#endif
namespace Common
{
int CurrentThreadId()
{
#ifdef _WIN32
return GetCurrentThreadId();
#elif defined __APPLE__
return mach_thread_self();
#else
return 0;
#endif
}
#ifdef _WIN32
void SetThreadAffinity(std::thread::native_handle_type thread, u32 mask)
{
SetThreadAffinityMask(thread, mask);
}
void SetCurrentThreadAffinity(u32 mask)
{
SetThreadAffinityMask(GetCurrentThread(), mask);
}
// Supporting functions
void SleepCurrentThread(int ms)
{
Sleep(ms);
}
void SwitchCurrentThread()
{
SwitchToThread();
}
// Sets the debugger-visible name of the current thread.
// Uses undocumented (actually, it is now documented) trick.
// http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vsdebug/html/vxtsksettingthreadname.asp
// This is implemented much nicer in upcoming msvc++, see:
// http://msdn.microsoft.com/en-us/library/xcb2z8hs(VS.100).aspx
void SetCurrentThreadName(const char* szThreadName)
{
static const DWORD MS_VC_EXCEPTION = 0x406D1388;
#pragma pack(push,8)
struct THREADNAME_INFO
{
DWORD dwType; // must be 0x1000
LPCSTR szName; // pointer to name (in user addr space)
DWORD dwThreadID; // thread ID (-1=caller thread)
DWORD dwFlags; // reserved for future use, must be zero
} info;
#pragma pack(pop)
info.dwType = 0x1000;
info.szName = szThreadName;
info.dwThreadID = -1; //dwThreadID;
info.dwFlags = 0;
__try
{
RaiseException(MS_VC_EXCEPTION, 0, sizeof(info)/sizeof(ULONG_PTR), (ULONG_PTR*)&info);
}
__except(EXCEPTION_CONTINUE_EXECUTION)
{}
}
#else // !WIN32, so must be POSIX threads
void SetThreadAffinity(std::thread::native_handle_type thread, u32 mask)
{
#ifdef __APPLE__
thread_policy_set(pthread_mach_thread_np(thread),
THREAD_AFFINITY_POLICY, (integer_t*)&mask, 1);
#elif (defined __linux__ || defined BSD4_4 || defined __FreeBSD__) && !(defined ANDROID)
#ifdef __FreeBSD__
cpuset_t cpu_set;
#else
cpu_set_t cpu_set;
#endif
CPU_ZERO(&cpu_set);
for (int i = 0; i != sizeof(mask) * 8; ++i)
if ((mask >> i) & 1)
CPU_SET(i, &cpu_set);
pthread_setaffinity_np(thread, sizeof(cpu_set), &cpu_set);
#endif
}
void SetCurrentThreadAffinity(u32 mask)
{
SetThreadAffinity(pthread_self(), mask);
}
void SleepCurrentThread(int ms)
{
usleep(1000 * ms);
}
void SwitchCurrentThread()
{
usleep(1000 * 1);
}
void SetCurrentThreadName(const char* szThreadName)
{
#ifdef __APPLE__
pthread_setname_np(szThreadName);
#elif defined __FreeBSD__
pthread_set_name_np(pthread_self(), szThreadName);
#else
// linux doesn't allow to set more than 16 bytes, including \0.
pthread_setname_np(pthread_self(), std::string(szThreadName).substr(0, 15).c_str());
#endif
#ifdef USE_VTUNE
// VTune uses OS thread names by default but probably supports longer names when set via its own API.
__itt_thread_set_name(szThreadName);
#endif
}
#endif
} // namespace Common
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