CMake/Source/cmFileLock.cxx
Brad King e1c7747253 Format include directive blocks and ordering with clang-format
Sort include directives within each block (separated by a blank line) in
lexicographic order (except to prioritize `sys/types.h` first).  First
run `clang-format` with the config file:

    ---
    SortIncludes: false
    ...

Commit the result temporarily.  Then run `clang-format` again with:

    ---
    SortIncludes: true
    IncludeCategories:
      - Regex:    'sys/types.h'
        Priority: -1
    ...

Commit the result temporarily.  Start a new branch and cherry-pick the
second commit.  Manually resolve conflicts to preserve indentation of
re-ordered includes.  This cleans up the include ordering without
changing any other style.

Use the following command to run `clang-format`:

    $ git ls-files -z -- \
        '*.c' '*.cc' '*.cpp' '*.cxx' '*.h' '*.hh' '*.hpp' '*.hxx' |
      egrep -z -v '(Lexer|Parser|ParserHelper)\.' |
      egrep -z -v '^Source/cm_sha2' |
      egrep -z -v '^Source/(kwsys|CursesDialog/form)/' |
      egrep -z -v '^Utilities/(KW|cm).*/' |
      egrep -z -v '^Tests/Module/GenerateExportHeader' |
      egrep -z -v '^Tests/RunCMake/CommandLine/cmake_depends/test_UTF-16LE.h' |
      xargs -0 clang-format -i

This selects source files that do not come from a third-party.

Inspired-by: Daniel Pfeifer <daniel@pfeifer-mail.de>
2016-04-29 13:58:54 -04:00

79 lines
1.9 KiB
C++

/*============================================================================
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.
============================================================================*/
#include "cmFileLock.h"
#include "cmFileLockResult.h"
#include <assert.h>
// Common implementation
cmFileLock::~cmFileLock()
{
if (!this->Filename.empty())
{
const cmFileLockResult result = this->Release();
static_cast<void>(result);
assert(result.IsOk());
}
}
cmFileLockResult cmFileLock::Lock(
const std::string& 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 = "";
}
return result;
}
bool cmFileLock::IsLocked(const std::string& filename) const
{
return filename == this->Filename;
}
#if defined(_WIN32)
# include "cmFileLockWin32.cxx"
#else
# include "cmFileLockUnix.cxx"
#endif