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
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
|
/* 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;
};
|
