blob: 470010219fc8e4c88796645a91b9b7c69c3d67a7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
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
|
