output.cc revision 8229:78bf55f23338
1/* 2 * Copyright (c) 2005 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Authors: Nathan Binkert 29 */ 30 31#include <sys/stat.h> 32#include <sys/types.h> 33 34#include <cerrno> 35#include <climits> 36#include <cstdlib> 37#include <fstream> 38 39#include <gzstream.hh> 40 41#include "base/misc.hh" 42#include "base/output.hh" 43 44using namespace std; 45 46OutputDirectory simout; 47 48/** 49 * 50 */ 51OutputDirectory::OutputDirectory() 52{} 53 54OutputDirectory::~OutputDirectory() 55{ 56 for (map_t::iterator i = files.begin(); i != files.end(); i++) { 57 if (i->second) 58 delete i->second; 59 } 60} 61 62std::ostream * 63OutputDirectory::checkForStdio(const string &name) const 64{ 65 if (name == "cerr" || name == "stderr") 66 return &cerr; 67 68 if (name == "cout" || name == "stdout") 69 return &cout; 70 71 return NULL; 72} 73 74ostream * 75OutputDirectory::openFile(const string &filename, 76 ios_base::openmode mode) const 77{ 78 if (filename.find(".gz", filename.length()-3) < filename.length()) { 79 ogzstream *file = new ogzstream(filename.c_str(), mode); 80 81 if (!file->is_open()) 82 fatal("Cannot open file %s", filename); 83 84 return file; 85 } else { 86 ofstream *file = new ofstream(filename.c_str(), mode); 87 88 if (!file->is_open()) 89 fatal("Cannot open file %s", filename); 90 91 return file; 92 } 93} 94 95void 96OutputDirectory::setDirectory(const string &d) 97{ 98 if (!dir.empty()) 99 panic("Output directory already set!\n"); 100 101 dir = d; 102 103 // guarantee that directory ends with a '/' 104 if (dir[dir.size() - 1] != '/') 105 dir += "/"; 106} 107 108const string & 109OutputDirectory::directory() const 110{ 111 if (dir.empty()) 112 panic("Output directory not set!"); 113 114 return dir; 115} 116 117inline string 118OutputDirectory::resolve(const string &name) const 119{ 120 return (name[0] != '/') ? dir + name : name; 121} 122 123ostream * 124OutputDirectory::create(const string &name, bool binary) 125{ 126 ostream *file = checkForStdio(name); 127 if (file) 128 return file; 129 130 string filename = resolve(name); 131 ios_base::openmode mode = 132 ios::trunc | binary ? ios::binary : (ios::openmode)0; 133 file = openFile(filename, mode); 134 135 return file; 136} 137 138ostream * 139OutputDirectory::find(const string &name) 140{ 141 ostream *file = checkForStdio(name); 142 if (file) 143 return file; 144 145 string filename = resolve(name); 146 map_t::iterator i = files.find(filename); 147 if (i != files.end()) 148 return (*i).second; 149 150 file = openFile(filename); 151 files[filename] = file; 152 return file; 153} 154 155bool 156OutputDirectory::isFile(const std::ostream *os) 157{ 158 return os && os != &cerr && os != &cout; 159} 160