diff options
Diffstat (limited to 'src/common/thread.cpp')
| -rw-r--r-- | src/common/thread.cpp | 55 |
1 files changed, 38 insertions, 17 deletions
diff --git a/src/common/thread.cpp b/src/common/thread.cpp index 482848b244..eac0f60131 100644 --- a/src/common/thread.cpp +++ b/src/common/thread.cpp @@ -1,13 +1,15 @@ -// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project +// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project // SPDX-License-Identifier: GPL-3.0-or-later // SPDX-FileCopyrightText: 2013 Dolphin Emulator Project // SPDX-FileCopyrightText: 2014 Citra Emulator Project // SPDX-License-Identifier: GPL-2.0-or-later #include <string> +#include <thread> #include "common/error.h" #include "common/logging/log.h" +#include "common/assert.h" #include "common/thread.h" #ifdef __APPLE__ #include <mach/mach.h> @@ -18,6 +20,8 @@ #include "common/string_util.h" #else #if defined(__Bitrig__) || defined(__DragonFly__) || defined(__FreeBSD__) || defined(__OpenBSD__) +#include <sys/cpuset.h> +#include <sys/_cpuset.h> #include <pthread_np.h> #endif #include <pthread.h> @@ -28,7 +32,7 @@ #endif #ifdef __FreeBSD__ -#define cpu_set_t cpuset_t +# define cpu_set_t cpuset_t #endif namespace Common { @@ -77,22 +81,14 @@ void SetCurrentThreadPriority(ThreadPriority new_priority) { #endif } -#ifdef _MSC_VER - -// Sets the debugger-visible name of the current thread. void SetCurrentThreadName(const char* name) { - static auto pf = (decltype(&SetThreadDescription))(void*)GetProcAddress(GetModuleHandle(TEXT("KernelBase.dll")), "SetThreadDescription"); - if (pf) +#ifdef _MSC_VER + // Sets the debugger-visible name of the current thread. + if (auto pf = (decltype(&SetThreadDescription))(void*)GetProcAddress(GetModuleHandle(TEXT("KernelBase.dll")), "SetThreadDescription"); pf) pf(GetCurrentThread(), UTF8ToUTF16W(name).data()); // Windows 10+ -} - -#else // !MSVC_VER, so must be POSIX threads - -// MinGW with the POSIX threading model does not support pthread_setname_np -void SetCurrentThreadName(const char* name) { - // See for reference - // https://gitlab.freedesktop.org/mesa/mesa/-/blame/main/src/util/u_thread.c?ref_type=heads#L75 -#ifdef __APPLE__ + else + ; // No-op +#elif defined(__APPLE__) pthread_setname_np(name); #elif defined(__HAIKU__) rename_thread(find_thread(NULL), name); @@ -112,13 +108,38 @@ void SetCurrentThreadName(const char* name) { pthread_setname_np(pthread_self(), buf); } #elif defined(_WIN32) - // mingw stub + // MinGW with the POSIX threading model does not support pthread_setname_np + // See for reference + // https://gitlab.freedesktop.org/mesa/mesa/-/blame/main/src/util/u_thread.c?ref_type=heads#L75 (void)name; #else pthread_setname_np(pthread_self(), name); #endif } +void PinCurrentThreadToPerformanceCore(size_t core_id) { + ASSERT(core_id < 4); + // If we set a flag for a CPU that doesn't exist, the thread may not be allowed to + // run in ANY processor! + auto const total_cores = std::thread::hardware_concurrency(); + if (core_id < total_cores) { +#if defined(__ANDROID__) + cpu_set_t set; + CPU_ZERO(&set); + CPU_SET(core_id, &set); + sched_setaffinity(pthread_self(), sizeof(set), &set); +#elif defined(__linux__) || defined(__FreeBSD__) + cpu_set_t set; + CPU_ZERO(&set); + CPU_SET(core_id, &set); + pthread_setaffinity_np(pthread_self(), sizeof(set), &set); +#elif defined(_WIN32) + DWORD set = 1UL << core_id; + SetThreadAffinityMask(GetCurrentThread(), set); +#else + // No pin functionality implemented #endif + } +} } // namespace Common |