1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
** Author: Milian Wolff, KDAB (milian.wolff@kdab.com)
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "outputgenerator.h"
#include <QAbstractSocket>
#include <QIODevice>
#include <QTextStream>
#include <QCoreApplication>
#include <QStringList>
#include <QDebug>
#include <unistd.h>
using namespace Valgrind::Fake;
OutputGenerator::OutputGenerator(QAbstractSocket *output, QIODevice *input) :
m_output(output),
m_input(input),
m_finished(false),
m_crash(false),
m_garbage(false),
m_wait(0)
{
Q_ASSERT(input->isOpen());
Q_ASSERT(input->isReadable());
m_timer.setSingleShot(true);
m_timer.start();
connect(&m_timer, SIGNAL(timeout()),
this, SLOT(writeOutput()));
}
void OutputGenerator::setCrashRandomly(bool enable)
{
m_crash = enable;
}
void OutputGenerator::setOutputGarbage(bool enable)
{
m_garbage = enable;
}
void OutputGenerator::setWait(uint seconds)
{
m_wait = seconds;
}
#include <iostream>
static bool blockingWrite(QIODevice *dev, const QByteArray &ba)
{
const qint64 toWrite = ba.size();
qint64 written = 0;
while (written < ba.size()) {
const qint64 n = dev->write(ba.constData() + written, toWrite - written);
if (n < 0)
return false;
written += n;
}
return true;
}
void OutputGenerator::produceRuntimeError()
{
if (m_crash) {
std::cerr << "Goodbye, cruel world" << std::endl;
int zero = 0; // hide the error at compile-time to avoid a compiler warning
int i = 1 / zero;
Q_UNUSED(i);
Q_ASSERT(false);
}
else if (m_garbage) {
std::cerr << "Writing garbage" << std::endl;
blockingWrite(m_output, "<</GARBAGE = '\"''asdfaqre");
m_output->flush();
} else if (m_wait) {
qDebug() << "waiting in fake valgrind for " << m_wait << " seconds..." << endl;
sleep(m_wait);
}
}
void OutputGenerator::writeOutput()
{
m_timer.setInterval(qrand() % 1000);
int lines = 0;
while (!m_input->atEnd()) {
qint64 lastPos = m_input->pos();
QByteArray line = m_input->readLine();
if (lines > 0 && !m_finished && line.contains("<error>")) {
if ((m_crash || m_garbage || m_wait) && qrand() % 10 == 1) {
produceRuntimeError();
m_timer.start();
return;
}
m_input->seek(lastPos);
m_timer.start();
return;
} else {
if (!m_finished && line.contains("<state>FINISHED</state>")) {
m_finished = true;
if (m_crash || m_garbage || m_wait) {
produceRuntimeError();
m_timer.start();
return;
}
}
if (!blockingWrite(m_output, line)) {
std::cerr << "Writing to socket failed: " << qPrintable(m_output->errorString()) << std::endl;
emit finished();
return;
}
m_output->flush();
++lines;
}
}
Q_ASSERT(m_input->atEnd());
while (m_output->bytesToWrite() > 0)
m_output->waitForBytesWritten(-1);
emit finished();
}
|
