qsharedmemory_unix.cpp

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Absolute File Name:

/home/qt/qt5_coco/qt5/qtbase/src/corelib/kernel/qsharedmemory_unix.cpp

Line	Source	Count
1	/****************************************************************************	-
2	**	-
3	** Copyright (C) 2016 The Qt Company Ltd.	-
4	** Contact: https://www.qt.io/licensing/	-
5	**	-
6	** This file is part of the QtCore module of the Qt Toolkit.	-
7	**	-
8	** $QT_BEGIN_LICENSE:LGPL$	-
9	** Commercial License Usage	-
10	** Licensees holding valid commercial Qt licenses may use this file in	-
11	** accordance with the commercial license agreement provided with the	-
12	** Software or, alternatively, in accordance with the terms contained in	-
13	** a written agreement between you and The Qt Company. For licensing terms	-
14	** and conditions see https://www.qt.io/terms-conditions. For further	-
15	** information use the contact form at https://www.qt.io/contact-us.	-
16	**	-
17	** GNU Lesser General Public License Usage	-
18	** Alternatively, this file may be used under the terms of the GNU Lesser	-
19	** General Public License version 3 as published by the Free Software	-
20	** Foundation and appearing in the file LICENSE.LGPL3 included in the	-
21	** packaging of this file. Please review the following information to	-
22	** ensure the GNU Lesser General Public License version 3 requirements	-
23	** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.	-
24	**	-
25	** GNU General Public License Usage	-
26	** Alternatively, this file may be used under the terms of the GNU	-
27	** General Public License version 2.0 or (at your option) the GNU General	-
28	** Public license version 3 or any later version approved by the KDE Free	-
29	** Qt Foundation. The licenses are as published by the Free Software	-
30	** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3	-
31	** included in the packaging of this file. Please review the following	-
32	** information to ensure the GNU General Public License requirements will	-
33	** be met: https://www.gnu.org/licenses/gpl-2.0.html and	-
34	** https://www.gnu.org/licenses/gpl-3.0.html.	-
35	**	-
36	** $QT_END_LICENSE$	-
37	**	-
38	****************************************************************************/	-
39		-
40	#include "qplatformdefs.h"	-
41		-
42	#include "qsharedmemory.h"	-
43	#include "qsharedmemory_p.h"	-
44	#include "qsystemsemaphore.h"	-
45	#include <qdebug.h>	-
46		-
47	#include <errno.h>	-
48		-
49	#ifndef QT_NO_SHAREDMEMORY	-
50	#include <sys/types.h>	-
51	#ifndef QT_POSIX_IPC	-
52	#include <sys/ipc.h>	-
53	#include <sys/shm.h>	-
54	#else	-
55	#include <sys/mman.h>	-
56	#endif	-
57	#include <sys/stat.h>	-
58	#include <fcntl.h>	-
59	#include <unistd.h>	-
60	#endif //QT_NO_SHAREDMEMORY	-
61		-
62	#include "private/qcore_unix_p.h"	-
63		-
64	#ifndef QT_NO_SHAREDMEMORY	-
65	QT_BEGIN_NAMESPACE	-
66		-
67	QSharedMemoryPrivate::QSharedMemoryPrivate()	-
68	: QObjectPrivate(), memory(0), size(0), error(QSharedMemory::NoError),	-
69	#ifndef QT_NO_SYSTEMSEMAPHORE	-
70	systemSemaphore(QString()), lockedByMe(false),	-
71	#endif	-
72	#ifndef QT_POSIX_IPC	-
73	unix_key(0)	-
74	#else	-
75	hand(-1)	-
76	#endif	-
77	{	-
78	} executed 3612 times by 3 tests: `end of block` Executed by: tst_QApplication tst_QSharedMemory tst_qsharedmemory - unknown status	3612
79		-
80	void QSharedMemoryPrivate::setErrorString(QLatin1String function)	-
81	{	-
82	// EINVAL is handled in functions so they can give better error strings	-
83	switch (errno) {	-
84	case EACCES: never executed: `case 13:`	0
85	errorString = QSharedMemory::tr("%1: permission denied").arg(function);	-
86	error = QSharedMemory::PermissionDenied;	-
87	break; never executed: `break;`	0
88	case EEXIST: executed 2 times by 1 test: `case 17:` Executed by: tst_QSharedMemory	2
89	errorString = QSharedMemory::tr("%1: already exists").arg(function);	-
90	error = QSharedMemory::AlreadyExists;	-
91	break; executed 2 times by 1 test: `break;` Executed by: tst_QSharedMemory	2
92	case ENOENT: never executed: `case 2:`	0
93	errorString = QSharedMemory::tr("%1: doesn't exist").arg(function);	-
94	error = QSharedMemory::NotFound;	-
95	break; never executed: `break;`	0
96	case EMFILE: never executed: `case 24:`	0
97	case ENOMEM: never executed: `case 12:`	0
98	case ENOSPC: never executed: `case 28:`	0
99	errorString = QSharedMemory::tr("%1: out of resources").arg(function);	-
100	error = QSharedMemory::OutOfResources;	-
101	break; never executed: `break;`	0
102	default: never executed: `default:`	0
103	errorString = QSharedMemory::tr("%1: unknown error %2").arg(function).arg(errno);	-
104	error = QSharedMemory::UnknownError;	-
105	#if defined QSHAREDMEMORY_DEBUG	-
106	qDebug() << errorString << "key" << key << "errno" << errno << EINVAL;	-
107	#endif	-
108	} never executed: `end of block`	0
109	}	-
110		-
111	QT_END_NAMESPACE	-
112		-
113	#endif // QT_NO_SHAREDMEMORY	-

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/****************************************************************************

** Contact: https://www.qt.io/licensing/

** This file is part of the QtCore module of the Qt Toolkit.

** $QT_BEGIN_LICENSE:LGPL$

** 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 The Qt Company. For licensing terms

** and conditions see https://www.qt.io/terms-conditions. For further

** information use the contact form at https://www.qt.io/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 3 as published by the Free Software

** Foundation and appearing in the file LICENSE.LGPL3 included in the

** packaging of this file. Please review the following information to

** ensure the GNU Lesser General Public License version 3 requirements

** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.

** GNU General Public License Usage

** Alternatively, this file may be used under the terms of the GNU

** General Public License version 2.0 or (at your option) the GNU General

** Public license version 3 or any later version approved by the KDE Free

** Qt Foundation. The licenses are as published by the Free Software

** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3

** included in the packaging of this file. Please review the following

** information to ensure the GNU General Public License requirements will

** be met: https://www.gnu.org/licenses/gpl-2.0.html and

** https://www.gnu.org/licenses/gpl-3.0.html.

** $QT_END_LICENSE$

****************************************************************************/

#include "qplatformdefs.h"

#include "qsharedmemory.h"

#include "qsharedmemory_p.h"

#include "qsystemsemaphore.h"

#include <qdebug.h>

#include <errno.h>

#ifndef QT_NO_SHAREDMEMORY

#include <sys/types.h>

#ifndef QT_POSIX_IPC

#include <sys/ipc.h>

#include <sys/shm.h>

#else

#include <sys/mman.h>

#endif

#include <sys/stat.h>

#include <fcntl.h>

#include <unistd.h>

#endif //QT_NO_SHAREDMEMORY

#include "private/qcore_unix_p.h"

#ifndef QT_NO_SHAREDMEMORY

QT_BEGIN_NAMESPACE

QSharedMemoryPrivate::QSharedMemoryPrivate()

: QObjectPrivate(), memory(0), size(0), error(QSharedMemory::NoError),

#ifndef QT_NO_SYSTEMSEMAPHORE

systemSemaphore(QString()), lockedByMe(false),

#endif

#ifndef QT_POSIX_IPC

unix_key(0)

#else

hand(-1)

#endif

{

}

executed 3612 times by 3 tests: end of block

Executed by:

tst_QApplication
tst_QSharedMemory
tst_qsharedmemory - unknown status

3612

void QSharedMemoryPrivate::setErrorString(QLatin1String function)

{

// EINVAL is handled in functions so they can give better error strings

switch (errno) {

case EACCES:

never executed: case 13:

errorString = QSharedMemory::tr("%1: permission denied").arg(function);

error = QSharedMemory::PermissionDenied;

break;

never executed: break;

case EEXIST:

executed 2 times by 1 test: case 17:

Executed by:

tst_QSharedMemory

errorString = QSharedMemory::tr("%1: already exists").arg(function);

error = QSharedMemory::AlreadyExists;

break;

executed 2 times by 1 test: break;

Executed by:

tst_QSharedMemory

case ENOENT:

never executed: case 2:

errorString = QSharedMemory::tr("%1: doesn't exist").arg(function);

error = QSharedMemory::NotFound;

break;

never executed: break;

case EMFILE:

never executed: case 24:

case ENOMEM:

never executed: case 12:

case ENOSPC:

never executed: case 28:

errorString = QSharedMemory::tr("%1: out of resources").arg(function);

100

error = QSharedMemory::OutOfResources;

101

break;

never executed: break;

102

default:

never executed: default:

103

errorString = QSharedMemory::tr("%1: unknown error %2").arg(function).arg(errno);

104

error = QSharedMemory::UnknownError;

105

#if defined QSHAREDMEMORY_DEBUG

106

qDebug() << errorString << "key" << key << "errno" << errno << EINVAL;

107

#endif

108

}

never executed: end of block

}

QT_END_NAMESPACE

#endif // QT_NO_SHAREDMEMORY

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