diff options
author | Brian Gaeke <gaeke@uiuc.edu> | 2004-02-23 21:30:29 +0000 |
---|---|---|
committer | Brian Gaeke <gaeke@uiuc.edu> | 2004-02-23 21:30:29 +0000 |
commit | a6eb7c19a14f2bdbde22c3e2a14dc190b3b97ded (patch) | |
tree | 3b87a45aad5c771a1e6090d62f469a4154bcdb6c /include/llvm/Support/MutexGuard.h | |
parent | 80ead3133ae3b6eb0517c3bca406574bef135a74 (diff) | |
download | llvm-a6eb7c19a14f2bdbde22c3e2a14dc190b3b97ded.tar.gz llvm-a6eb7c19a14f2bdbde22c3e2a14dc190b3b97ded.tar.bz2 llvm-a6eb7c19a14f2bdbde22c3e2a14dc190b3b97ded.tar.xz |
ThreadSupport.h is now output from configure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11770 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/Support/MutexGuard.h')
-rw-r--r-- | include/llvm/Support/MutexGuard.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/include/llvm/Support/MutexGuard.h b/include/llvm/Support/MutexGuard.h new file mode 100644 index 0000000000..470010219f --- /dev/null +++ b/include/llvm/Support/MutexGuard.h @@ -0,0 +1,40 @@ +//===-- Support/ThreadSupport.h - Generic threading support -----*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file was developed by the LLVM research group and is distributed under +// the University of Illinois Open Source License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file defines platform-agnostic interfaces that can be used to write +// multi-threaded programs. Autoconf is used to chose the correct +// implementation of these interfaces, or default to a non-thread-capable system +// if no matching system support is available. +// +//===----------------------------------------------------------------------===// + +#ifndef SUPPORT_THREADSUPPORT_H +#define SUPPORT_THREADSUPPORT_H + +#if @HAVE_PTHREAD_MUTEX_LOCK@ +#include "Support/ThreadSupport-PThreads.h" +#else +#include "Support/ThreadSupport-NoSupport.h" +#endif // If no system support is available + +namespace llvm { + /// MutexLocker - Instances of this class acquire a given Lock when + /// constructed and hold that lock until destruction. + /// + class MutexLocker { + Mutex &M; + MutexLocker(const MutexLocker &); // DO NOT IMPLEMENT + void operator=(const MutexLocker &); // DO NOT IMPLEMENT + public: + MutexLocker(Mutex &m) : M(m) { M.acquire(); } + ~MutexLocker() { M.release(); } + }; +} + +#endif // SUPPORT_THREADSUPPORT_H |