1//= llvm/Support/Unix/RWMutex.inc - Unix Reader/Writer Mutual Exclusion Lock  =//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file implements the Unix specific (non-pthread) RWMutex class.
11//
12//===----------------------------------------------------------------------===//
13
14//===----------------------------------------------------------------------===//
15//=== WARNING: Implementation here must contain only generic UNIX code that
16//===          is guaranteed to work on *all* UNIX variants.
17//===----------------------------------------------------------------------===//
18
19namespace llvm {
20
21using namespace sys;
22
23RWMutexImpl::RWMutexImpl() { }
24
25RWMutexImpl::~RWMutexImpl() { }
26
27bool RWMutexImpl::reader_acquire() {
28  return true;
29}
30
31bool RWMutexImpl::reader_release() {
32  return true;
33}
34
35bool RWMutexImpl::writer_acquire() {
36  return true;
37}
38
39bool RWMutexImpl::writer_release() {
40  return true;
41}
42
43}
44