89 lines
3.0 KiB
C++
89 lines
3.0 KiB
C++
// Copyright (c) 2011 Marshall A. Greenblatt. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the name Chromium Embedded
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// Framework nor the names of its contributors may be used to endorse
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// or promote products derived from this software without specific prior
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// written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// ---------------------------------------------------------------------------
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//
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// The contents of this file are only available to applications that link
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// against the libcef_dll_wrapper target.
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//
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#ifndef _CEF_BYTE_READ_HANDLER_H
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#define _CEF_BYTE_READ_HANDLER_H
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#include "../cef_base.h"
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#include "../cef_stream.h"
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///
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// Thread safe implementation of the CefReadHandler class for reading an
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// in-memory array of bytes.
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///
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class CefByteReadHandler : public CefReadHandler
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{
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public:
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///
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// Create a new object for reading an array of bytes. An optional |source|
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// reference can be kept to keep the underlying data source from being
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// released while the reader exists.
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///
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CefByteReadHandler(const unsigned char* bytes, size_t size,
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CefRefPtr<CefBase> source);
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///
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// Read raw binary data.
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///
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virtual size_t Read(void* ptr, size_t size, size_t n);
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///
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// Seek to the specified offset position. |whence| may be any one of
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// SEEK_CUR, SEEK_END or SEEK_SET.
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///
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virtual int Seek(long offset, int whence);
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///
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// Return the current offset position.
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///
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virtual long Tell();
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///
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// Return non-zero if at end of file.
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///
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virtual int Eof();
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private:
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const unsigned char* bytes_;
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size_t size_;
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size_t offset_;
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CefRefPtr<CefBase> source_;
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IMPLEMENT_REFCOUNTING(CefByteReadHandler);
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IMPLEMENT_LOCKING(CefByteReadHandler);
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};
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#endif // _CEF_BYTE_READ_HANDLER_H
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