83 lines
2.6 KiB
C++
83 lines
2.6 KiB
C++
/*
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Copyright (c) 2009-2010 Christopher A. Taylor. All rights reserved.
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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 met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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* Neither the name of LibCat nor the names of its contributors may be used
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to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef CAT_THREAD_POOL_FILES_HPP
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#define CAT_THREAD_POOL_FILES_HPP
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#include <cat/threads/ThreadPool.hpp>
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#include <cat/port/FastDelegate.h>
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#if defined(CAT_OS_WINDOWS)
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# include <cat/port/WindowsInclude.hpp>
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#endif
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namespace cat {
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enum AsyncFileModes
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{
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ASYNCFILE_READ = 1,
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ASYNCFILE_WRITE = 2,
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ASYNCFILE_RANDOM = 4
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};
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class AsyncFile : public ThreadRefObject
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{
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HANDLE _file;
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protected:
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char _file_path[MAX_PATH+1];
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public:
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AsyncFile(int priorityLevel);
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virtual ~AsyncFile();
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public:
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bool Valid();
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const char *GetFilePath();
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public:
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/*
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In read mode, Open() will fail if the file does not exist.
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In write mode, Open() will create the file if it does not exist.
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*/
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bool Open(const char *file_path, u32 async_file_modes);
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void Close();
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bool SetSize(u64 bytes);
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u64 GetSize();
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bool Read(AsyncBuffer *buffer, u64 offset, const AsyncCallback &callback);
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bool Write(AsyncBuffer *buffer, u64 offset, const AsyncCallback &callback = 0);
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};
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} // namespace cat
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#endif // CAT_THREAD_POOL_FILES_HPP
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