зеркало из https://github.com/mozilla/gecko-dev.git
76 строки
1.7 KiB
C++
76 строки
1.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#ifndef _CR_FILEREADER_H_
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#define _CR_FILEREADER_H_
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#define FR_BUFFERSIZE 8192
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#include "prtypes.h"
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#ifdef NO_NSPR
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#include <stdio.h>
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#else
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#include "prio.h"
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#endif
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#include "Pool.h"
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/* Reads a file, allocating space as neccessary */
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class FileReader {
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public:
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FileReader(Pool &pool, const char *fileName, int *status,
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int bufferSize = FR_BUFFERSIZE);
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/* All read routines return True on success, False on failure */
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/* read an unsigned byte */
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int readU1(char *destp, int numItems);
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/* read an unsigned 16-bit quantity */
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int readU2(uint16 *destp, int numItems);
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/* read an unsigned 32-bit quantity */
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int readU4(uint32 *destp, int numItems);
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~FileReader();
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private:
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int bufferSize;
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char *buffer;
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char *curp, *limit;
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bool eofReached;
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int fillBuf();
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int read1(char *destp, int size);
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Pool &pool;
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#ifdef NO_NSPR
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FILE *fp;
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#else
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PRFileDesc *fp;
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#endif
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};
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#endif /* _CR_FILEREADER_H_ */
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