| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef BASE_FILES_SCOPED_FILE_H_ |
| #define BASE_FILES_SCOPED_FILE_H_ |
| |
| #include <stdio.h> |
| |
| #include <memory> |
| |
| #include "base/logging.h" |
| #include "base/scoped_generic.h" |
| #include "util/build_config.h" |
| |
| namespace base { |
| |
| namespace internal { |
| |
| #if defined(OS_POSIX) || defined(OS_FUCHSIA) |
| struct ScopedFDCloseTraits { |
| static int InvalidValue() { return -1; } |
| static void Free(int fd); |
| }; |
| #endif |
| |
| // Functor for |ScopedFILE| (below). |
| struct ScopedFILECloser { |
| inline void operator()(FILE* x) const { |
| if (x) |
| fclose(x); |
| } |
| }; |
| |
| } // namespace internal |
| |
| // ----------------------------------------------------------------------------- |
| |
| #if defined(OS_POSIX) || defined(OS_FUCHSIA) |
| // A low-level Posix file descriptor closer class. Use this when writing |
| // platform-specific code, especially that does non-file-like things with the |
| // FD (like sockets). |
| // |
| // If you're writing low-level Windows code, see base/win/scoped_handle.h |
| // which provides some additional functionality. |
| // |
| // If you're writing cross-platform code that deals with actual files, you |
| // should generally use base::File instead which can be constructed with a |
| // handle, and in addition to handling ownership, has convenient cross-platform |
| // file manipulation functions on it. |
| typedef ScopedGeneric<int, internal::ScopedFDCloseTraits> ScopedFD; |
| #endif |
| |
| // Automatically closes |FILE*|s. |
| typedef std::unique_ptr<FILE, internal::ScopedFILECloser> ScopedFILE; |
| |
| } // namespace base |
| |
| #endif // BASE_FILES_SCOPED_FILE_H_ |