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//===-- sanitizer_pthread_wrappers.h ----------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file is a part of *Sanitizer runtime.
// It provides handy wrappers for thread manipulation, that:
// a) assert on any failure rather than returning an error code
// b) defines pthread-like interface on platforms where where <pthread.h>
// is not supplied by default.
//
//===----------------------------------------------------------------------===//
#ifndef SANITIZER_PTHREAD_WRAPPERS_H
#define SANITIZER_PTHREAD_WRAPPERS_H
#include "sanitizer_test_utils.h"
#if !defined(_WIN32)
# include <pthread.h>
// Simply forward the arguments and check that the pthread functions succeed.
# define PTHREAD_CREATE(a, b, c, d) ASSERT_EQ(0, pthread_create(a, b, c, d))
# define PTHREAD_JOIN(a, b) ASSERT_EQ(0, pthread_join(a, b))
#else
typedef HANDLE pthread_t;
struct PthreadHelperCreateThreadInfo {
void *(*start_routine)(void *);
void *arg;
};
inline DWORD WINAPI PthreadHelperThreadProc(void *arg) {
PthreadHelperCreateThreadInfo *start_data =
reinterpret_cast<PthreadHelperCreateThreadInfo*>(arg);
(start_data->start_routine)(start_data->arg);
delete start_data;
return 0;
}
inline void PTHREAD_CREATE(pthread_t *thread, void *attr,
void *(*start_routine)(void *), void *arg) {
ASSERT_EQ(0, attr) << "Thread attributes are not supported yet.";
PthreadHelperCreateThreadInfo *data = new PthreadHelperCreateThreadInfo;
data->start_routine = start_routine;
data->arg = arg;
*thread = CreateThread(0, 0, PthreadHelperThreadProc, data, 0, 0);
DWORD err = GetLastError();
ASSERT_NE(nullptr, *thread) << "Failed to create a thread, got error 0x"
<< std::hex << err;
}
inline void PTHREAD_JOIN(pthread_t thread, void **value_ptr) {
ASSERT_EQ(0, value_ptr) << "Nonzero value_ptr is not supported yet.";
ASSERT_EQ(WAIT_OBJECT_0, WaitForSingleObject(thread, INFINITE));
ASSERT_NE(0, CloseHandle(thread));
}
inline void pthread_exit(void *retval) {
ASSERT_EQ(0, retval) << "Nonzero retval is not supported yet.";
ExitThread(0);
}
#endif // _WIN32
#endif // SANITIZER_PTHREAD_WRAPPERS_H
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