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/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2014 Ruslan Baratov
Distributed under the OSI-approved BSD License (the "License");
see accompanying file Copyright.txt for details.
This software is distributed WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the License for more information.
============================================================================*/
#ifndef cmFileLockPool_h
#define cmFileLockPool_h
#include "cmStandardIncludes.h"
#include <list>
class cmFileLockResult;
class cmFileLock;
class cmFileLockPool
{
public:
cmFileLockPool();
~cmFileLockPool();
//@{
/**
* @brief Function scope control.
*/
void PushFunctionScope();
void PopFunctionScope();
//@}
//@{
/**
* @brief File scope control.
*/
void PushFileScope();
void PopFileScope();
//@}
//@{
/**
* @brief Lock the file in given scope.
* @param timeoutSec Lock timeout. If -1 try until success or fatal error.
*/
cmFileLockResult LockFunctionScope(
const std::string& filename, unsigned long timeoutSec
);
cmFileLockResult LockFileScope(
const std::string& filename, unsigned long timeoutSec
);
cmFileLockResult LockProcessScope(
const std::string& filename, unsigned long timeoutSec
);
//@}
/**
* @brief Unlock the file explicitly.
*/
cmFileLockResult Release(const std::string& filename);
private:
cmFileLockPool(const cmFileLockPool&);
cmFileLockPool& operator=(const cmFileLockPool&);
bool IsAlreadyLocked(const std::string& filename) const;
class ScopePool
{
public:
ScopePool();
~ScopePool();
cmFileLockResult Lock(
const std::string& filename, unsigned long timeoutSec
);
cmFileLockResult Release(const std::string& filename);
bool IsAlreadyLocked(const std::string& filename) const;
private:
ScopePool(const ScopePool&);
ScopePool& operator=(const ScopePool&);
typedef std::list<cmFileLock*> List;
typedef List::iterator It;
typedef List::const_iterator CIt;
List Locks;
};
typedef std::list<ScopePool*> List;
typedef List::iterator It;
typedef List::const_iterator CIt;
List FunctionScopes;
List FileScopes;
ScopePool ProcessScope;
};
#endif // cmFileLockPool_h
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