d37f0b29e2
- In `SetCurrentThreadName`, when on Linux, truncate to 15 bytes, as (at least on glibc) `pthread_set_name_np` will otherwise return `ERANGE` and do nothing. - Also, add logging in case `pthread_set_name_np` returns an error anyway. This is Linux-specific, as the Apple and BSD versions of `pthread_set_name_np return `void`. - Change the name for CPU threads in multi-core mode from "yuzu:CoreCPUThread_N" (19 bytes) to "yuzu:CPUCore_N" (14 bytes) so it fits into the Linux limit. Some other thread names are also cut off, but I didn't bother addressing them as you can guess them from the truncated versions. For a CPU thread, truncation means you can't see which core it is!
139 lines
3.9 KiB
C++
139 lines
3.9 KiB
C++
// Copyright 2013 Dolphin Emulator Project / 2014 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include "common/common_funcs.h"
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#include "common/logging/log.h"
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#include "common/thread.h"
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#ifdef __APPLE__
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#include <mach/mach.h>
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#elif defined(_WIN32)
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#include <windows.h>
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#else
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#if defined(__Bitrig__) || defined(__DragonFly__) || defined(__FreeBSD__) || defined(__OpenBSD__)
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#include <pthread_np.h>
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#else
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#include <pthread.h>
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#endif
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#include <sched.h>
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#endif
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#ifndef _WIN32
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#include <unistd.h>
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#endif
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#include <string>
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#ifdef __FreeBSD__
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#define cpu_set_t cpuset_t
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#endif
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namespace Common {
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#ifdef _WIN32
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void SetCurrentThreadPriority(ThreadPriority new_priority) {
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auto handle = GetCurrentThread();
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int windows_priority = 0;
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switch (new_priority) {
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case ThreadPriority::Low:
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windows_priority = THREAD_PRIORITY_BELOW_NORMAL;
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break;
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case ThreadPriority::Normal:
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windows_priority = THREAD_PRIORITY_NORMAL;
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break;
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case ThreadPriority::High:
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windows_priority = THREAD_PRIORITY_ABOVE_NORMAL;
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break;
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case ThreadPriority::VeryHigh:
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windows_priority = THREAD_PRIORITY_HIGHEST;
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break;
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default:
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windows_priority = THREAD_PRIORITY_NORMAL;
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break;
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}
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SetThreadPriority(handle, windows_priority);
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}
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#else
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void SetCurrentThreadPriority(ThreadPriority new_priority) {
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pthread_t this_thread = pthread_self();
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s32 max_prio = sched_get_priority_max(SCHED_OTHER);
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s32 min_prio = sched_get_priority_min(SCHED_OTHER);
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u32 level = static_cast<u32>(new_priority) + 1;
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struct sched_param params;
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if (max_prio > min_prio) {
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params.sched_priority = min_prio + ((max_prio - min_prio) * level) / 4;
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} else {
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params.sched_priority = min_prio - ((min_prio - max_prio) * level) / 4;
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}
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pthread_setschedparam(this_thread, SCHED_OTHER, ¶ms);
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}
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#endif
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#ifdef _MSC_VER
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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* name) {
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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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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 = name;
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info.dwThreadID = std::numeric_limits<DWORD>::max();
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info.dwFlags = 0;
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__try {
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RaiseException(MS_VC_EXCEPTION, 0, sizeof(info) / sizeof(ULONG_PTR), (ULONG_PTR*)&info);
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} __except (EXCEPTION_CONTINUE_EXECUTION) {
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}
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}
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#else // !MSVC_VER, so must be POSIX threads
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// MinGW with the POSIX threading model does not support pthread_setname_np
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#if !defined(_WIN32) || defined(_MSC_VER)
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void SetCurrentThreadName(const char* name) {
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#ifdef __APPLE__
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pthread_setname_np(name);
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#elif defined(__Bitrig__) || defined(__DragonFly__) || defined(__FreeBSD__) || defined(__OpenBSD__)
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pthread_set_name_np(pthread_self(), name);
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#elif defined(__NetBSD__)
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pthread_setname_np(pthread_self(), "%s", (void*)name);
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#elif defined(__linux__)
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// Linux limits thread names to 15 characters and will outright reject any
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// attempt to set a longer name with ERANGE.
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std::string truncated(name, std::min(strlen(name), static_cast<size_t>(15)));
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if (int e = pthread_setname_np(pthread_self(), truncated.c_str())) {
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errno = e;
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LOG_ERROR(Common, "Failed to set thread name to '{}': {}", truncated, GetLastErrorMsg());
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}
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#else
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pthread_setname_np(pthread_self(), name);
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#endif
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}
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#endif
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#if defined(_WIN32)
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void SetCurrentThreadName(const char* name) {
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// Do Nothing on MingW
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}
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#endif
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#endif
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} // namespace Common
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