mirror of
https://bitbucket.org/chromiumembedded/cef
synced 2025-06-05 21:39:12 +02:00
122397acfc
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
67 lines
1.6 KiB
C++
67 lines
1.6 KiB
C++
// Copyright (c) 2010 The Chromium Embedded Framework Authors. All rights
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// reserved. Use of this source code is governed by a BSD-style license that
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// can be found in the LICENSE file.
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#include "include/wrapper/cef_byte_read_handler.h"
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#include <algorithm>
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#include <cstdio>
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#include <cstdlib>
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CefByteReadHandler::CefByteReadHandler(const unsigned char* bytes, size_t size,
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CefRefPtr<CefBase> source)
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: bytes_(bytes), size_(size), offset_(0), source_(source) {
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}
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size_t CefByteReadHandler::Read(void* ptr, size_t size, size_t n) {
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base::AutoLock lock_scope(lock_);
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size_t s = static_cast<size_t>(size_ - offset_) / size;
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size_t ret = std::min(n, s);
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memcpy(ptr, bytes_ + offset_, ret * size);
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offset_ += ret * size;
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return ret;
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}
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int CefByteReadHandler::Seek(int64 offset, int whence) {
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int rv = -1L;
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base::AutoLock lock_scope(lock_);
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switch (whence) {
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case SEEK_CUR:
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if (offset_ + offset > size_ || offset_ + offset < 0)
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break;
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offset_ += offset;
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rv = 0;
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break;
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case SEEK_END: {
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#if defined(OS_WIN)
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int64 offset_abs = _abs64(offset);
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#else
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int64 offset_abs = std::abs(offset);
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#endif
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if (offset_abs > size_)
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break;
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offset_ = size_ - offset_abs;
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rv = 0;
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break;
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}
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case SEEK_SET:
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if (offset > size_ || offset < 0)
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break;
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offset_ = offset;
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rv = 0;
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break;
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}
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return rv;
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}
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int64 CefByteReadHandler::Tell() {
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base::AutoLock lock_scope(lock_);
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return offset_;
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}
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int CefByteReadHandler::Eof() {
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base::AutoLock lock_scope(lock_);
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return (offset_ >= size_);
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}
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