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 16*ed2f6d3bSAndrew Rist * KIND, either express or implied. See the License for the 17*ed2f6d3bSAndrew Rist * specific language governing permissions and limitations 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