blob: 99f6885e1977aabc6c87aa4c5949c0151255fb40 (
plain)
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
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmFileLockPool.h"
#include <algorithm>
#include <cassert>
#include <utility>
#include "cmFileLock.h"
#include "cmFileLockResult.h"
cmFileLockPool::cmFileLockPool() = default;
cmFileLockPool::~cmFileLockPool() = default;
void cmFileLockPool::PushFunctionScope()
{
this->FunctionScopes.push_back(ScopePool());
}
void cmFileLockPool::PopFunctionScope()
{
assert(!this->FunctionScopes.empty());
this->FunctionScopes.pop_back();
}
void cmFileLockPool::PushFileScope()
{
this->FileScopes.push_back(ScopePool());
}
void cmFileLockPool::PopFileScope()
{
assert(!this->FileScopes.empty());
this->FileScopes.pop_back();
}
cmFileLockResult cmFileLockPool::LockFunctionScope(const std::string& filename,
unsigned long timeoutSec)
{
if (this->IsAlreadyLocked(filename)) {
return cmFileLockResult::MakeAlreadyLocked();
}
if (this->FunctionScopes.empty()) {
return cmFileLockResult::MakeNoFunction();
}
return this->FunctionScopes.back().Lock(filename, timeoutSec);
}
cmFileLockResult cmFileLockPool::LockFileScope(const std::string& filename,
unsigned long timeoutSec)
{
if (this->IsAlreadyLocked(filename)) {
return cmFileLockResult::MakeAlreadyLocked();
}
assert(!this->FileScopes.empty());
return this->FileScopes.back().Lock(filename, timeoutSec);
}
cmFileLockResult cmFileLockPool::LockProcessScope(const std::string& filename,
unsigned long timeoutSec)
{
if (this->IsAlreadyLocked(filename)) {
return cmFileLockResult::MakeAlreadyLocked();
}
return this->ProcessScope.Lock(filename, timeoutSec);
}
cmFileLockResult cmFileLockPool::Release(const std::string& filename)
{
for (auto& funcScope : this->FunctionScopes) {
const cmFileLockResult result = funcScope.Release(filename);
if (!result.IsOk()) {
return result;
}
}
for (auto& fileScope : this->FileScopes) {
const cmFileLockResult result = fileScope.Release(filename);
if (!result.IsOk()) {
return result;
}
}
return this->ProcessScope.Release(filename);
}
bool cmFileLockPool::IsAlreadyLocked(const std::string& filename) const
{
for (auto const& funcScope : this->FunctionScopes) {
const bool result = funcScope.IsAlreadyLocked(filename);
if (result) {
return true;
}
}
for (auto const& fileScope : this->FileScopes) {
const bool result = fileScope.IsAlreadyLocked(filename);
if (result) {
return true;
}
}
return this->ProcessScope.IsAlreadyLocked(filename);
}
cmFileLockPool::ScopePool::ScopePool() = default;
cmFileLockPool::ScopePool::~ScopePool() = default;
cmFileLockPool::ScopePool::ScopePool(ScopePool&&) noexcept = default;
cmFileLockPool::ScopePool& cmFileLockPool::ScopePool::operator=(
ScopePool&& other) noexcept
{
if (this != &other) {
this->Locks = std::move(other.Locks);
}
return *this;
}
cmFileLockResult cmFileLockPool::ScopePool::Lock(const std::string& filename,
unsigned long timeoutSec)
{
cmFileLock lock;
const cmFileLockResult result = lock.Lock(filename, timeoutSec);
if (result.IsOk()) {
this->Locks.push_back(std::move(lock));
return cmFileLockResult::MakeOk();
}
return result;
}
cmFileLockResult cmFileLockPool::ScopePool::Release(
const std::string& filename)
{
for (auto& lock : this->Locks) {
if (lock.IsLocked(filename)) {
return lock.Release();
}
}
return cmFileLockResult::MakeOk();
}
bool cmFileLockPool::ScopePool::IsAlreadyLocked(
const std::string& filename) const
{
return std::any_of(this->Locks.begin(), this->Locks.end(),
[&filename](cmFileLock const& lock) -> bool {
return lock.IsLocked(filename);
});
}
|
