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LibretroAdmin
f7d5095739
Every std::mutex, lock_guard, unique_lock, scoped_lock, condition_variable, call_once and semaphore left in Source/Core is replaced by a lock-free design: - Input: the device list, control bindings, stick calibration and default device are published snapshots read under a quiesce; a rebind requested while another thread is rebinding is handed to that thread instead of waited for. - WiimoteReal: the pool thread owns the slots and runs commands from an MPSC queue; the active Wiimotes are atomic slots. - EXI/SI/IOS devices: socket and packet traffic goes through SPSC rings or MPSC handoffs owned by one thread; USB scanning publishes its device list, and libusb transfers drain through a CallGate. - Memory cards: the flush thread applies change records queued by the CPU thread. - Custom assets: loads are scheduled as a published batch with an atomic cursor, results come back over an MPSC stack, and busy assets are skipped and retried. - D3D state and GL program caches use insert-only atomic maps (Common/AtomicHashMap.h). - Logging appends with O_APPEND / FILE_APPEND_DATA; FatFs reports busy instead of waiting; per-socket WSAStartup/WSACleanup. Deleted as unused by the libretro core: the profiler, the FIFO recorder, the volume verifier, the touch InputOverrider and the GameCube adapter's libusb path.
48 lines
1.4 KiB
C++
48 lines
1.4 KiB
C++
// Copyright 2021 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "Common/SocketContext.h"
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#ifdef _WIN32
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#include "Common/Logging/Log.h"
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#include "Common/Network.h"
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#endif
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namespace Common
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{
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#ifdef _WIN32
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// Winsock counts WSAStartup calls itself and tears down at the matching last WSACleanup, so each
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// context makes its own pair and nothing is shared between threads.
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SocketContext::SocketContext()
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{
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WSADATA data;
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const int ret = WSAStartup(MAKEWORD(2, 2), &data);
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if (ret == 0)
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{
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INFO_LOG_FMT(COMMON, "WSAStartup succeeded, wVersion={}.{}, wHighVersion={}.{}",
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int(LOBYTE(data.wVersion)), int(HIBYTE(data.wVersion)),
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int(LOBYTE(data.wHighVersion)), int(HIBYTE(data.wHighVersion)));
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m_started = true;
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}
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else
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{
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// The WSAStartup function directly returns the extended error code in the return value.
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// A call to the WSAGetLastError function is not needed and should not be used.
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//
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// Source:
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// https://learn.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-wsastartup
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ERROR_LOG_FMT(COMMON, "WSAStartup failed with error {}: {}", ret,
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Common::DecodeNetworkError(ret));
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}
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}
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SocketContext::~SocketContext()
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{
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if (m_started)
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WSACleanup();
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}
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#else
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SocketContext::SocketContext() = default;
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SocketContext::~SocketContext() = default;
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#endif
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} // namespace Common
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