mirror of
https://github.com/c64scene-ar/llvm-6502.git
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440f87eea2
platform independent. This code is completely untested (but never used), and needs autoconf support for detecting pthreads, but it's a start, and deletes two emails from my inbox. :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10906 91177308-0d34-0410-b5e6-96231b3b80d8
43 lines
1.4 KiB
C++
43 lines
1.4 KiB
C++
//===-- Support/ThreadSupport-PThreads.h - PThreads support -----*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines pthreads implementations of the generic threading
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// mechanisms. Users should never #include this file directly!
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//
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//===----------------------------------------------------------------------===//
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// Users should never #include this file directly! As such, no include guards
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// are needed.
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#ifndef SUPPORT_THREADSUPPORT_H
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#error "Code should not #include Support/ThreadSupport/PThreads.h directly!"
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#endif
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#include <pthread.h>
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namespace llvm {
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/// Mutex - This class allows user code to protect variables shared between
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/// threads. It implements a "recursive" mutex, to simplify user code.
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///
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class Mutex {
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pthread_mutex_t mutex;
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Mutex(const Mutex &); // DO NOT IMPLEMENT
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void operator=(const Mutex &); // DO NOT IMPLEMENT
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public:
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Mutex() {
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pthread_mutexattr_t Attr;
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pthread_mutex_init(&mutex, &Attr);
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}
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~Mutex() { pthread_mutex_destroy(&mutex); }
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void acquire () { pthread_mutex_lock (&mutex); }
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void release () { pthread_mutex_unlock (&mutex); }
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};
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} // end namespace llvm
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