upstream/emscripten/tools/websocket_to_posix_proxy/src/threads.h

#pragma once

// N.B. The mutex type MUTEX_T is NOT relocatable (on Windows)!
// That means you should not move it to another memory address
// after creation.

#if defined(__unix__) || defined(__APPLE__) || defined(__linux__)
#include <pthread.h>
#define THREAD_T pthread_t
#define CREATE_THREAD(threadPtr, threadFunc, threadArg) pthread_create(&threadPtr, 0, threadFunc, threadArg)
#define CREATE_THREAD_RETURN_T int
#define CREATE_THREAD_SUCCEEDED(x) (x == 0)
#define EXIT_THREAD(code) pthread_exit((void*)(uintptr_t)code)
#define THREAD_RETURN_T void*
#define MUTEX_T pthread_mutex_t
inline void CREATE_MUTEX(MUTEX_T *m) {
  pthread_mutex_init(m, 0);
}
#define LOCK_MUTEX(m) pthread_mutex_lock(m)
#define UNLOCK_MUTEX(m) pthread_mutex_unlock(m)
#endif

#if defined(_WIN32)
#ifndef NOMINMAX
#define NOMINMAX
#endif
#include <Windows.h>
#define THREAD_T HANDLE
#define CREATE_THREAD(threadPtr, threadFunc, threadArg) threadPtr = CreateThread(0, 0, threadFunc, threadArg, 0, 0)
#define CREATE_THREAD_RETURN_T HANDLE
#define CREATE_THREAD_SUCCEEDED(x) (x != 0)
#define EXIT_THREAD(code) ExitThread((DWORD)code)
#define THREAD_RETURN_T DWORD WINAPI
#define MUTEX_T CRITICAL_SECTION
inline void CREATE_MUTEX(MUTEX_T *m) {
  InitializeCriticalSectionAndSpinCount(m, 0x00000400);
}
#define LOCK_MUTEX(m) EnterCriticalSection(m)
#define UNLOCK_MUTEX(m) LeaveCriticalSection(m)
#endif