FilterFileSource.cpp

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00001 //===========================================================================
00002 //Copyright (C) 2003, 2004 Zentaro Kavanagh
00003 //
00004 //Redistribution and use in source and binary forms, with or without
00005 //modification, are permitted provided that the following conditions
00006 //are met:
00007 //
00008 //- Redistributions of source code must retain the above copyright
00009 //  notice, this list of conditions and the following disclaimer.
00010 //
00011 //- Redistributions in binary form must reproduce the above copyright
00012 //  notice, this list of conditions and the following disclaimer in the
00013 //  documentation and/or other materials provided with the distribution.
00014 //
00015 //- Neither the name of Zentaro Kavanagh nor the names of contributors 
00016 //  may be used to endorse or promote products derived from this software 
00017 //  without specific prior written permission.
00018 //
00019 //THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
00020 //``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
00021 //LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
00022 //PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE ORGANISATION OR
00023 //CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
00024 //EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
00025 //PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00026 //PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00027 //LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00028 //NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00029 //SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00030 //===========================================================================
00031 #include "stdafx.h"
00032 #include "filterfilesource.h"
00033 
00034 FilterFileSource::FilterFileSource(void)
00035 {
00036 }
00037 
00038 FilterFileSource::~FilterFileSource(void)
00039 {
00040         mSourceFile.close();
00041 }
00042 
00043 unsigned long FilterFileSource::seek(unsigned long inPos) {
00044         mSourceFile.seekg(inPos, ios_base::beg);
00045         return mSourceFile.tellg();
00046 }
00047 void FilterFileSource::close() {
00048         mSourceFile.close();
00049 }
00050 bool FilterFileSource::open(string inSourceLocation) {
00051         mSourceFile.open(inSourceLocation.c_str(), ios_base::in|ios_base::binary);
00052         return mSourceFile.is_open();
00053 }
00054 void FilterFileSource::clear() {
00055         mSourceFile.clear();
00056 }
00057 bool FilterFileSource::isEOF() {
00058         return mSourceFile.eof();
00059 }
00060 unsigned long FilterFileSource::read(char* outBuffer, unsigned long inNumBytes) {
00061         mSourceFile.read(outBuffer, inNumBytes);
00062         return mSourceFile.gcount();
00063 }

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