cef/libcef_dll/ctocpp/base_ctocpp.h
Marshall Greenblatt 122397acfc Introduce the use of Chromium types (issue #1336).
Changes to the CEF public API:
- Add base::Bind, base::Callback, base::Lock, base::WeakPtr, scoped_refptr, scoped_ptr and supporting types.
- Add include/wrapper/cef_closure_task.h helpers for converting a base::Closure to a CefTask.
- Change CefRefPtr to extend scoped_refptr.
-- Change CefBase method signatures to match RefCountedThreadSafeBase.
- Change IMPLEMENT_REFCOUNTING to use base::AtomicRefCount*.
-- Remove the CefAtomic* functions.
-- IMPLEMENT_REFCOUNTING now enforces via a compile-time error that the correct class name was passed to the macro.
- Change IMPLEMENT_LOCKING to use base::Lock.
-- Remove the CefCriticalSection class.
-- Deprecate the IMPLEMENT_LOCKING macro.
-- base::Lock will DCHECK() in Debug builds if lock usage is reentrant.
- Move include/internal/cef_tuple.h to include/base/cef_tuple.h.
- Allow an empty |callback| parameter passed to CefBeginTracing.

Changes to the CEF implementation:
- Fix incorrect names passed to the IMPLEMENT_REFCOUNTING macro.
- Fix instances of reentrant locking in the CefXmlObject and CefRequest implementations.
- Remove use of the IMPLEMENT_LOCKING macro.

Changes to cef_unittests:
- Add tests/unittests/chromium_includes.h and always include it first from unit test .cc files to avoid name conflicts with Chromium types.
- Fix wrong header include ordering.
- Remove use of the IMPLEMENT_LOCKING macro.

Changes to cefclient and cefsimple:
- Use base::Bind and cef_closure_task.h instead of NewCefRunnable*.
- Remove use of the IMPEMENT_LOCKING macro.
- Fix incorrect/unnecessary locking.
- Add additional runtime thread checks.
- Windows: Perform actions on the UI thread instead of the main thread when running in multi-threaded-message-loop mode to avoid excessive locking.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@1769 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
2014-07-14 22:18:51 +00:00

102 lines
3.1 KiB
C++

// Copyright (c) 2009 The Chromium Embedded Framework 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 CEF_LIBCEF_DLL_CTOCPP_BASE_CTOCPP_H_
#define CEF_LIBCEF_DLL_CTOCPP_BASE_CTOCPP_H_
#pragma once
#include "include/base/cef_logging.h"
#include "include/base/cef_macros.h"
#include "include/cef_base.h"
#include "include/capi/cef_base_capi.h"
// CefCToCpp implementation for CefBase.
class CefBaseCToCpp : public CefBase {
public:
// Use this method to create a wrapper class instance for a structure
// received from the other side.
static CefRefPtr<CefBase> Wrap(cef_base_t* s) {
if (!s)
return NULL;
// Wrap their structure with the CefCToCpp object.
CefBaseCToCpp* wrapper = new CefBaseCToCpp(s);
// Put the wrapper object in a smart pointer.
CefRefPtr<CefBase> wrapperPtr(wrapper);
// Release the reference that was added to the CefCppToC wrapper object on
// the other side before their structure was passed to us.
wrapper->UnderlyingRelease();
// Return the smart pointer.
return wrapperPtr;
}
// Use this method to retrieve the underlying structure from a wrapper class
// instance for return back to the other side.
static cef_base_t* Unwrap(CefRefPtr<CefBase> c) {
if (!c.get())
return NULL;
// Cast the object to our wrapper class type.
CefBaseCToCpp* wrapper = static_cast<CefBaseCToCpp*>(c.get());
// Add a reference to the CefCppToC wrapper object on the other side that
// will be released once the structure is received.
wrapper->UnderlyingAddRef();
// Return their original structure.
return wrapper->GetStruct();
}
explicit CefBaseCToCpp(cef_base_t* str)
: struct_(str) {
DCHECK(str);
}
virtual ~CefBaseCToCpp() {}
// If returning the structure across the DLL boundary you should call
// UnderlyingAddRef() on this wrapping CefCToCpp object. On the other side of
// the DLL boundary, call Release() on the CefCppToC object.
cef_base_t* GetStruct() { return struct_; }
// CefBase methods increment/decrement reference counts on both this object
// and the underlying wrapped structure.
void AddRef() const {
UnderlyingAddRef();
ref_count_.AddRef();
}
bool Release() const {
UnderlyingRelease();
if (ref_count_.Release()) {
delete this;
return true;
}
return false;
}
bool HasOneRef() const { return ref_count_.HasOneRef(); }
// Increment/decrement reference counts on only the underlying class.
void UnderlyingAddRef() const {
if (struct_->add_ref)
struct_->add_ref(struct_);
}
bool UnderlyingRelease() const {
if (!struct_->release)
return false;
return struct_->release(struct_) ? true : false;
}
bool UnderlyingHasOneRef() const {
if (!struct_->has_one_ref)
return false;
return struct_->has_one_ref(struct_) ? true : false;
}
private:
CefRefCount ref_count_;
cef_base_t* struct_;
DISALLOW_COPY_AND_ASSIGN(CefBaseCToCpp);
};
#endif // CEF_LIBCEF_DLL_CTOCPP_BASE_CTOCPP_H_