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juce_InterProcessLock.h
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1 /*
2  ==============================================================================
3 
4  This file is part of the juce_core module of the JUCE library.
5  Copyright (c) 2015 - ROLI Ltd.
6 
7  Permission to use, copy, modify, and/or distribute this software for any purpose with
8  or without fee is hereby granted, provided that the above copyright notice and this
9  permission notice appear in all copies.
10 
11  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
12  TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
13  NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
14  DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
15  IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
16  CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 
18  ------------------------------------------------------------------------------
19 
20  NOTE! This permissive ISC license applies ONLY to files within the juce_core module!
21  All other JUCE modules are covered by a dual GPL/commercial license, so if you are
22  using any other modules, be sure to check that you also comply with their license.
23 
24  For more details, visit www.juce.com
25 
26  ==============================================================================
27 */
28 
29 #ifndef JUCE_INTERPROCESSLOCK_H_INCLUDED
30 #define JUCE_INTERPROCESSLOCK_H_INCLUDED
31 
32 
33 //==============================================================================
40 {
41 public:
42  //==============================================================================
46  explicit InterProcessLock (const String& name);
47 
52 
53  //==============================================================================
62  bool enter (int timeOutMillisecs = -1);
63 
65  void exit();
66 
67  //==============================================================================
77  {
78  public:
79  //==============================================================================
93  explicit ScopedLockType (InterProcessLock& l) : ipLock (l) { lockWasSuccessful = l.enter(); }
94 
102  inline ~ScopedLockType() { ipLock.exit(); }
103 
105  bool isLocked() const noexcept { return lockWasSuccessful; }
106 
107  private:
108  //==============================================================================
109  InterProcessLock& ipLock;
110  bool lockWasSuccessful;
111 
113  };
114 
115 private:
116  //==============================================================================
117  class Pimpl;
118  friend struct ContainerDeletePolicy<Pimpl>;
119  ScopedPointer<Pimpl> pimpl;
120 
121  CriticalSection lock;
122  String name;
123 
125 };
126 
127 
128 #endif // JUCE_INTERPROCESSLOCK_H_INCLUDED
~ScopedLockType()
Definition: juce_InterProcessLock.h:102
bool enter(int timeOutMillisecs=-1)
Definition: juce_posix_SharedCode.h:819
#define noexcept
Definition: juce_CompilerSupport.h:141
Definition: juce_InterProcessLock.h:39
Definition: juce_String.h:43
#define JUCE_API
Definition: juce_StandardHeader.h:139
Definition: juce_CriticalSection.h:47
Definition: juce_ScopedPointer.h:70
Definition: juce_ContainerDeletePolicy.h:44
#define JUCE_DECLARE_NON_COPYABLE(className)
Definition: juce_PlatformDefs.h:191
bool isLocked() const noexcept
Definition: juce_InterProcessLock.h:105
ScopedLockType(InterProcessLock &l)
Definition: juce_InterProcessLock.h:93
Definition: juce_InterProcessLock.h:76
Definition: juce_posix_SharedCode.h:722