CMake/Source/cmFileLockPool.h
Kitware Robot 1772622772 LICENSE: Replace references to Copyright.txt with LICENSE.rst
```
git grep -lz 'Copyright.txt or https://cmake.org/licensing ' |
  while IFS= read -r -d $'\0' f ; do
    sed -i '/Copyright.txt or https:\/\/cmake.org\/licensing / {
              s/Copyright.txt/LICENSE.rst/
            }' "$f" ; done
```
2025-03-03 10:43:35 -05:00

88 lines
2.0 KiB
C++

/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file LICENSE.rst or https://cmake.org/licensing for details. */
#pragma once
#include "cmConfigure.h" // IWYU pragma: keep
#include <string>
#include <vector>
#include "cmFileLock.h"
class cmFileLockResult;
class cmFileLockPool
{
public:
cmFileLockPool();
~cmFileLockPool();
cmFileLockPool(cmFileLockPool const&) = delete;
cmFileLockPool& operator=(cmFileLockPool const&) = delete;
//@{
/**
* @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(std::string const& filename,
unsigned long timeoutSec);
cmFileLockResult LockFileScope(std::string const& filename,
unsigned long timeoutSec);
cmFileLockResult LockProcessScope(std::string const& filename,
unsigned long timeoutSec);
//@}
/**
* @brief Unlock the file explicitly.
*/
cmFileLockResult Release(std::string const& filename);
private:
bool IsAlreadyLocked(std::string const& filename) const;
class ScopePool
{
public:
ScopePool();
~ScopePool();
ScopePool(ScopePool const&) = delete;
ScopePool(ScopePool&&) noexcept;
ScopePool& operator=(ScopePool const&) = delete;
ScopePool& operator=(ScopePool&&) noexcept;
cmFileLockResult Lock(std::string const& filename,
unsigned long timeoutSec);
cmFileLockResult Release(std::string const& filename);
bool IsAlreadyLocked(std::string const& filename) const;
private:
using List = std::vector<cmFileLock>;
List Locks;
};
using List = std::vector<ScopePool>;
List FunctionScopes;
List FileScopes;
ScopePool ProcessScope;
};