0b96ae1f6a
Run the `clang-format.bash` script to update all our C and C++ code to a new style defined by `.clang-format`, now with "east const" enforcement. Use `clang-format` version 18. * If you reached this commit for a line in `git blame`, re-run the blame operation starting at the parent of this commit to see older history for the content. * See the parent commit for instructions to rebase a change across this style transition commit. Issue: #26123
87 lines
2.1 KiB
C++
87 lines
2.1 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
|
file Copyright.txt or https://cmake.org/licensing for details. */
|
|
#include "cmFileLock.h"
|
|
|
|
#include <cassert>
|
|
#include <utility>
|
|
|
|
#include "cmFileLockResult.h"
|
|
|
|
// Common implementation
|
|
|
|
cmFileLock::cmFileLock(cmFileLock&& other) noexcept
|
|
{
|
|
this->File = other.File;
|
|
other.File = (decltype(other.File))-1;
|
|
this->Filename = std::move(other.Filename);
|
|
#if defined(_WIN32)
|
|
this->Overlapped = std::move(other.Overlapped);
|
|
#endif
|
|
}
|
|
|
|
cmFileLock::~cmFileLock()
|
|
{
|
|
if (!this->Filename.empty()) {
|
|
cmFileLockResult const result = this->Release();
|
|
static_cast<void>(result);
|
|
assert(result.IsOk());
|
|
}
|
|
}
|
|
|
|
cmFileLock& cmFileLock::operator=(cmFileLock&& other) noexcept
|
|
{
|
|
this->File = other.File;
|
|
other.File = (decltype(other.File))-1;
|
|
this->Filename = std::move(other.Filename);
|
|
#if defined(_WIN32)
|
|
this->Overlapped = std::move(other.Overlapped);
|
|
#endif
|
|
|
|
return *this;
|
|
}
|
|
|
|
cmFileLockResult cmFileLock::Lock(std::string const& filename,
|
|
unsigned long timeout)
|
|
{
|
|
if (filename.empty()) {
|
|
// Error is internal since all the directories and file must be created
|
|
// before actual lock called.
|
|
return cmFileLockResult::MakeInternal();
|
|
}
|
|
|
|
if (!this->Filename.empty()) {
|
|
// Error is internal since double-lock must be checked in class
|
|
// cmFileLockPool by the cmFileLock::IsLocked method.
|
|
return cmFileLockResult::MakeInternal();
|
|
}
|
|
|
|
this->Filename = filename;
|
|
cmFileLockResult result = this->OpenFile();
|
|
if (result.IsOk()) {
|
|
if (timeout == static_cast<unsigned long>(-1)) {
|
|
result = this->LockWithoutTimeout();
|
|
} else {
|
|
result = this->LockWithTimeout(timeout);
|
|
}
|
|
}
|
|
|
|
if (!result.IsOk()) {
|
|
this->Filename.clear();
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
bool cmFileLock::IsLocked(std::string const& filename) const
|
|
{
|
|
return filename == this->Filename;
|
|
}
|
|
|
|
#if defined(_WIN32)
|
|
// NOLINTNEXTLINE(bugprone-suspicious-include)
|
|
# include "cmFileLockWin32.cxx"
|
|
#else
|
|
// NOLINTNEXTLINE(bugprone-suspicious-include)
|
|
# include "cmFileLockUnix.cxx"
|
|
#endif
|