1//===-- sanitizer_pthread_wrappers.h ----------------------------*- C++ -*-===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This file is a part of *Sanitizer runtime. 11// It provides handy wrappers for thread manipulation, that: 12// a) assert on any failure rather than returning an error code 13// b) defines pthread-like interface on platforms where where <pthread.h> 14// is not supplied by default. 15// 16//===----------------------------------------------------------------------===// 17 18#ifndef SANITIZER_PTHREAD_WRAPPERS_H 19#define SANITIZER_PTHREAD_WRAPPERS_H 20 21#include "sanitizer_test_utils.h" 22 23#if !defined(_WIN32) 24# include <pthread.h> 25// Simply forward the arguments and check that the pthread functions succeed. 26# define PTHREAD_CREATE(a, b, c, d) ASSERT_EQ(0, pthread_create(a, b, c, d)) 27# define PTHREAD_JOIN(a, b) ASSERT_EQ(0, pthread_join(a, b)) 28#else 29typedef HANDLE pthread_t; 30 31struct PthreadHelperCreateThreadInfo { 32 void *(*start_routine)(void *); 33 void *arg; 34}; 35 36inline DWORD WINAPI PthreadHelperThreadProc(void *arg) { 37 PthreadHelperCreateThreadInfo *start_data = 38 reinterpret_cast<PthreadHelperCreateThreadInfo*>(arg); 39 void *ret = (start_data->start_routine)(start_data->arg); 40 delete start_data; 41 return (DWORD)ret; 42} 43 44inline void PTHREAD_CREATE(pthread_t *thread, void *attr, 45 void *(*start_routine)(void *), void *arg) { 46 ASSERT_EQ(0, attr) << "Thread attributes are not supported yet."; 47 PthreadHelperCreateThreadInfo *data = new PthreadHelperCreateThreadInfo; 48 data->start_routine = start_routine; 49 data->arg = arg; 50 *thread = CreateThread(0, 0, PthreadHelperThreadProc, data, 0, 0); 51 DWORD err = GetLastError(); 52 ASSERT_NE(nullptr, *thread) << "Failed to create a thread, got error 0x" 53 << std::hex << err; 54} 55 56inline void PTHREAD_JOIN(pthread_t thread, void **value_ptr) { 57 ASSERT_EQ(0, value_ptr) << "Nonzero value_ptr is not supported yet."; 58 ASSERT_EQ(WAIT_OBJECT_0, WaitForSingleObject(thread, INFINITE)); 59 ASSERT_NE(0, CloseHandle(thread)); 60} 61 62inline void pthread_exit(void *retval) { 63 ASSERT_EQ(0, retval) << "Nonzero retval is not supported yet."; 64 ExitThread((DWORD)retval); 65} 66#endif // _WIN32 67 68#endif // SANITIZER_PTHREAD_WRAPPERS_H 69