output.cc revision 5402:05c388940eb6 
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 <errno.h>
32#include <limits.h>
33#include <stdlib.h>
34#include <sys/stat.h>
35#include <sys/types.h>
36
37#include <fstream>
38
39#include "base/misc.hh"
40#include "base/output.hh"
41
42using namespace std;
43
44OutputDirectory simout;
45
46/**
47 *
48 */
49OutputDirectory::OutputDirectory()
50{}
51
52OutputDirectory::~OutputDirectory()
53{}
54
55void
56OutputDirectory::setDirectory(const string &d)
57{
58    if (!dir.empty())
59        panic("Output directory already set!\n");
60
61    dir = d;
62
63    if (dir != ".") {
64        if (mkdir(dir.c_str(), 0777) < 0 && errno != EEXIST)
65            panic("couldn't make output dir %s: %s\n",
66                  dir, strerror(errno));
67    }
68
69    // guarantee that directory ends with a '/'
70    if (dir[dir.size() - 1] != '/')
71        dir += "/";
72}
73
74const string &
75OutputDirectory::directory()
76{
77    if (dir.empty())
78        panic("Output directory not set!");
79
80    return dir;
81}
82
83string
84OutputDirectory::resolve(const string &name)
85{
86    return (name[0] != '/') ? dir + name : name;
87}
88
89ostream *
90OutputDirectory::create(const string &name, bool binary)
91{
92    if (name == "cerr" || name == "stderr")
93        return &cerr;
94
95    if (name == "cout" || name == "stdout")
96        return &cout;
97
98    ofstream *file = new ofstream(resolve(name).c_str(),
99            ios::trunc | binary ?  ios::binary : (ios::openmode)0);
100    if (!file->is_open())
101        fatal("Cannot open file %s", name);
102
103    return file;
104}
105
106ostream *
107OutputDirectory::find(const string &name)
108{
109    if (name == "cerr" || name == "stderr")
110        return &cerr;
111
112    if (name == "cout" || name == "stdout")
113        return &cout;
114
115    string filename = resolve(name);
116    map_t::iterator i = files.find(filename);
117    if (i != files.end())
118        return (*i).second;
119
120    ofstream *file = new ofstream(filename.c_str(), ios::trunc);
121    if (!file->is_open())
122        fatal("Cannot open file %s", filename);
123
124    files[filename] = file;
125    return file;
126}
127
128bool
129OutputDirectory::isFile(const std::ostream *os)
130{
131    return os && os != &cerr && os != &cout;
132}
133