52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
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/*
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* Main authors:
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* Guido Tack <guido.tack@monash.edu>
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* Gleb Belov <gleb.belov@monash.edu>
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*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was ! distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifdef _MSC_VER
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#define _CRT_SECURE_NO_WARNINGS
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#include <io.h>
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#else
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#include <unistd.h>
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#endif
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#include <minizinc/utils_savestream.hh>
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#include <iostream>
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using namespace std;
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using namespace MiniZinc;
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// StreamRedir::StreamRedir(FILE *s0) : d_s0(s0) { }
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StreamRedir::StreamRedir(FILE* s0, FILE* s1, bool fFlush) : _file0(s0) {
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replaceStream(s1, fFlush);
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}
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StreamRedir::~StreamRedir() { restore(); }
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void StreamRedir::replaceStream(FILE* s1, bool fFlush) {
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if (fFlush) {
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fflush(_file0);
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}
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fgetpos(_file0, &(_streamInfo.pos));
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_streamInfo.fd = dup(fileno(_file0));
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dup2(fileno(s1), fileno(_file0));
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}
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void StreamRedir::restore(bool fFLush) {
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if (fFLush) {
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fflush(_file0);
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}
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dup2(_streamInfo.fd, fileno(_file0));
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close(_streamInfo.fd);
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clearerr(_file0);
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fsetpos(_file0, &(_streamInfo.pos));
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}
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