A Discrete-Event Network Simulator
API
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output-stream-wrapper.cc
Go to the documentation of this file.
1/*
2 * Copyright (c) 2010 University of Washington
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation;
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16 */
17
19
20#include "ns3/abort.h"
21#include "ns3/fatal-impl.h"
22#include "ns3/log.h"
23
24#include <fstream>
25
26namespace ns3
27{
28
29NS_LOG_COMPONENT_DEFINE("OutputStreamWrapper");
30
31OutputStreamWrapper::OutputStreamWrapper(std::string filename, std::ios::openmode filemode)
32 : m_destroyable(true)
33{
34 NS_LOG_FUNCTION(this << filename << filemode);
35 auto os = new std::ofstream();
36 os->open(filename, filemode);
37 m_ostream = os;
39 NS_ABORT_MSG_UNLESS(os->is_open(),
40 "AsciiTraceHelper::CreateFileStream(): "
41 << "Unable to Open " << filename << " for mode " << filemode);
42}
43
45 : m_ostream(os),
46 m_destroyable(false)
47{
48 NS_LOG_FUNCTION(this << os);
50 NS_ABORT_MSG_UNLESS(m_ostream->good(), "Output stream is not valid for writing.");
51}
52
54{
55 NS_LOG_FUNCTION(this);
57 if (m_destroyable)
58 {
59 delete m_ostream;
60 }
61 m_ostream = nullptr;
62}
63
64std::ostream*
66{
67 NS_LOG_FUNCTION(this);
68 return m_ostream;
69}
70
71} // namespace ns3
OutputStreamWrapper(std::string filename, std::ios::openmode filemode)
Constructor.
std::ostream * GetStream()
Return a pointer to an ostream previously set in the wrapper.
bool m_destroyable
Can be destroyed.
std::ostream * m_ostream
The output stream.
#define NS_ABORT_MSG_UNLESS(cond, msg)
Abnormal program termination if a condition is false, with a message.
Definition: abort.h:144
void UnregisterStream(std::ostream *stream)
Unregister a stream for flushing on abnormal exit.
Definition: fatal-impl.cc:143
void RegisterStream(std::ostream *stream)
Register a stream to be flushed on abnormal exit.
Definition: fatal-impl.cc:136
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition: log.h:202
#define NS_LOG_FUNCTION(parameters)
If log level LOG_FUNCTION is enabled, this macro will output all input parameters separated by ",...
Every class exported by the ns3 library is enclosed in the ns3 namespace.