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