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// SPDX-FileCopyrightText: 2013 Dolphin Emulator Project
// SPDX-FileCopyrightText: 2014 Citra Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <string>
#include "common/error.h"
#include "common/logging/log.h"
#include "common/thread.h"
#ifdef __APPLE__
#include <mach/mach.h>
#elif defined(_WIN32)
#include <windows.h>
#else
#if defined(__Bitrig__) || defined(__DragonFly__) || defined(__FreeBSD__) || defined(__OpenBSD__)
#include <pthread_np.h>
#else
#include <pthread.h>
#endif
#include <sched.h>
#endif
#ifndef _WIN32
#include <unistd.h>
#endif
#ifdef __FreeBSD__
#define cpu_set_t cpuset_t
#endif
namespace Common {
#ifdef _WIN32
void SetCurrentThreadPriority(ThreadPriority new_priority) {
auto handle = GetCurrentThread();
int windows_priority = 0;
switch (new_priority) {
case ThreadPriority::Low:
windows_priority = THREAD_PRIORITY_BELOW_NORMAL;
break;
case ThreadPriority::Normal:
windows_priority = THREAD_PRIORITY_NORMAL;
break;
case ThreadPriority::High:
windows_priority = THREAD_PRIORITY_ABOVE_NORMAL;
break;
case ThreadPriority::VeryHigh:
windows_priority = THREAD_PRIORITY_HIGHEST;
break;
case ThreadPriority::Critical:
windows_priority = THREAD_PRIORITY_TIME_CRITICAL;
break;
default:
windows_priority = THREAD_PRIORITY_NORMAL;
break;
}
SetThreadPriority(handle, windows_priority);
}
#else
void SetCurrentThreadPriority(ThreadPriority new_priority) {
pthread_t this_thread = pthread_self();
const auto scheduling_type = SCHED_OTHER;
s32 max_prio = sched_get_priority_max(scheduling_type);
s32 min_prio = sched_get_priority_min(scheduling_type);
u32 level = std::max(static_cast<u32>(new_priority) + 1, 4U);
struct sched_param params;
if (max_prio > min_prio) {
params.sched_priority = min_prio + ((max_prio - min_prio) * level) / 4;
} else {
params.sched_priority = min_prio - ((min_prio - max_prio) * level) / 4;
}
pthread_setschedparam(this_thread, scheduling_type, ¶ms);
}
#endif
#ifdef _MSC_VER
// Sets the debugger-visible name of the current thread.
// Uses trick documented in:
// https://docs.microsoft.com/en-us/visualstudio/debugger/how-to-set-a-thread-name-in-native-code
void SetCurrentThreadName(const char* name) {
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 = name;
info.dwThreadID = std::numeric_limits<DWORD>::max();
info.dwFlags = 0;
__try {
RaiseException(MS_VC_EXCEPTION, 0, sizeof(info) / sizeof(ULONG_PTR), (ULONG_PTR*)&info);
} __except (EXCEPTION_CONTINUE_EXECUTION) {
}
}
#else // !MSVC_VER, so must be POSIX threads
// MinGW with the POSIX threading model does not support pthread_setname_np
#if !defined(_WIN32) || defined(_MSC_VER)
void SetCurrentThreadName(const char* name) {
#ifdef __APPLE__
pthread_setname_np(name);
#elif defined(__Bitrig__) || defined(__DragonFly__) || defined(__FreeBSD__) || defined(__OpenBSD__)
pthread_set_name_np(pthread_self(), name);
#elif defined(__NetBSD__)
pthread_setname_np(pthread_self(), "%s", (void*)name);
#elif defined(__linux__)
// Linux limits thread names to 15 characters and will outright reject any
// attempt to set a longer name with ERANGE.
std::string truncated(name, std::min(strlen(name), static_cast<size_t>(15)));
if (int e = pthread_setname_np(pthread_self(), truncated.c_str())) {
errno = e;
LOG_ERROR(Common, "Failed to set thread name to '{}': {}", truncated, GetLastErrorMsg());
}
#else
pthread_setname_np(pthread_self(), name);
#endif
}
#endif
#if defined(_WIN32)
void SetCurrentThreadName(const char* name) {
// Do Nothing on MingW
}
#endif
#endif
} // namespace Common
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