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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /ipc/chromium/src/base/scoped_cftyperef.h | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | ipc/chromium/src/base/scoped_cftyperef.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/ipc/chromium/src/base/scoped_cftyperef.h b/ipc/chromium/src/base/scoped_cftyperef.h new file mode 100644 index 0000000000..9cd3cfa967 --- /dev/null +++ b/ipc/chromium/src/base/scoped_cftyperef.h @@ -0,0 +1,68 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +// Copyright (c) 2006-2008 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_SCOPED_CFTYPEREF_H_ +#define BASE_SCOPED_CFTYPEREF_H_ + +#include <CoreFoundation/CoreFoundation.h> +#include "base/basictypes.h" + +// scoped_cftyperef<> is patterned after scoped_ptr<>, but maintains ownership +// of a CoreFoundation object: any object that can be represented as a +// CFTypeRef. Style deviations here are solely for compatibility with +// scoped_ptr<>'s interface, with which everyone is already familiar. +// +// When scoped_cftyperef<> takes ownership of an object (in the constructor or +// in reset()), it takes over the caller's existing ownership claim. The +// caller must own the object it gives to scoped_cftyperef<>, and relinquishes +// an ownership claim to that object. scoped_cftyperef<> does not call +// CFRetain(). +template <typename CFT> +class scoped_cftyperef { + public: + typedef CFT element_type; + + explicit scoped_cftyperef(CFT object = NULL) : object_(object) {} + + ~scoped_cftyperef() { + if (object_) CFRelease(object_); + } + + void reset(CFT object = NULL) { + if (object_) CFRelease(object_); + object_ = object; + } + + bool operator==(CFT that) const { return object_ == that; } + + bool operator!=(CFT that) const { return object_ != that; } + + operator CFT() const { return object_; } + + CFT get() const { return object_; } + + void swap(scoped_cftyperef& that) { + CFT temp = that.object_; + that.object_ = object_; + object_ = temp; + } + + // scoped_cftyperef<>::release() is like scoped_ptr<>::release. It is NOT + // a wrapper for CFRelease(). To force a scoped_cftyperef<> object to call + // CFRelease(), use scoped_cftyperef<>::reset(). + CFT release() { + CFT temp = object_; + object_ = NULL; + return temp; + } + + private: + CFT object_; + + DISALLOW_COPY_AND_ASSIGN(scoped_cftyperef); +}; + +#endif // BASE_SCOPED_CFTYPEREF_H_ |