1*ed2f6d3bSAndrew Rist /**************************************************************
2cdf0e10cSrcweir  *
3*ed2f6d3bSAndrew Rist  * Licensed to the Apache Software Foundation (ASF) under one
4*ed2f6d3bSAndrew Rist  * or more contributor license agreements.  See the NOTICE file
5*ed2f6d3bSAndrew Rist  * distributed with this work for additional information
6*ed2f6d3bSAndrew Rist  * regarding copyright ownership.  The ASF licenses this file
7*ed2f6d3bSAndrew Rist  * to you under the Apache License, Version 2.0 (the
8*ed2f6d3bSAndrew Rist  * "License"); you may not use this file except in compliance
9*ed2f6d3bSAndrew Rist  * with the License.  You may obtain a copy of the License at
10*ed2f6d3bSAndrew Rist  *
11*ed2f6d3bSAndrew Rist  *   http://www.apache.org/licenses/LICENSE-2.0
12*ed2f6d3bSAndrew Rist  *
13*ed2f6d3bSAndrew Rist  * Unless required by applicable law or agreed to in writing,
14*ed2f6d3bSAndrew Rist  * software distributed under the License is distributed on an
15*ed2f6d3bSAndrew Rist  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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18*ed2f6d3bSAndrew Rist  * under the License.
19*ed2f6d3bSAndrew Rist  *
20*ed2f6d3bSAndrew Rist  *************************************************************/
21*ed2f6d3bSAndrew Rist 
22*ed2f6d3bSAndrew Rist 
23cdf0e10cSrcweir 
24cdf0e10cSrcweir #ifndef INCLUDED_RECENTLY_USED_FILE_HXX
25cdf0e10cSrcweir #define INCLUDED_RECENTLY_USED_FILE_HXX
26cdf0e10cSrcweir 
27cdf0e10cSrcweir #include <stdio.h>
28cdf0e10cSrcweir #include <unistd.h>
29cdf0e10cSrcweir 
30cdf0e10cSrcweir //##################################
31cdf0e10cSrcweir // simple wrapper around the recently_used_file
32cdf0e10cSrcweir 
33cdf0e10cSrcweir class recently_used_file
34cdf0e10cSrcweir {
35cdf0e10cSrcweir public:
36cdf0e10cSrcweir     //----------------------------
37cdf0e10cSrcweir     recently_used_file();
38cdf0e10cSrcweir 
39cdf0e10cSrcweir     //----------------------------
40cdf0e10cSrcweir     ~recently_used_file();
41cdf0e10cSrcweir 
42cdf0e10cSrcweir     //----------------------------
43cdf0e10cSrcweir     // set file pointer to the start of file
44cdf0e10cSrcweir     void reset() const;
45cdf0e10cSrcweir 
46cdf0e10cSrcweir     //----------------------------
47cdf0e10cSrcweir     void truncate(off_t length = 0);
48cdf0e10cSrcweir 
49cdf0e10cSrcweir     //----------------------------
50cdf0e10cSrcweir     size_t read(
51cdf0e10cSrcweir 		char* buffer,
52cdf0e10cSrcweir         size_t size) const;
53cdf0e10cSrcweir 
54cdf0e10cSrcweir     //----------------------------
55cdf0e10cSrcweir 	void write(const char* buffer, size_t size) const;
56cdf0e10cSrcweir 
57cdf0e10cSrcweir 	//----------------------------
58cdf0e10cSrcweir 	bool eof() const;
59cdf0e10cSrcweir 
60cdf0e10cSrcweir private:
61cdf0e10cSrcweir     FILE* file_;
62cdf0e10cSrcweir };
63cdf0e10cSrcweir 
64cdf0e10cSrcweir #endif // INCLUDED_RECENTLY_USED_FILE_HXX
65