qsharedmemory_unix.cpp

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1/****************************************************************************-
2**-
3** Copyright (C) 2015 The Qt Company Ltd.-
4** Contact: http://www.qt.io/licensing/-
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6** This file is part of the QtCore module of the Qt Toolkit.-
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32****************************************************************************/-
33-
34#include "qplatformdefs.h"-
35-
36#include "qsharedmemory.h"-
37#include "qsharedmemory_p.h"-
38#include "qsystemsemaphore.h"-
39#include <qdebug.h>-
40-
41#include <errno.h>-
42-
43#ifndef QT_NO_SHAREDMEMORY-
44#include <sys/types.h>-
45#ifndef QT_POSIX_IPC-
46#include <sys/ipc.h>-
47#include <sys/shm.h>-
48#else-
49#include <sys/mman.h>-
50#endif-
51#include <sys/stat.h>-
52#include <fcntl.h>-
53#include <unistd.h>-
54#endif //QT_NO_SHAREDMEMORY-
55-
56#include "private/qcore_unix_p.h"-
57-
58#ifndef QT_NO_SHAREDMEMORY-
59QT_BEGIN_NAMESPACE-
60-
61QSharedMemoryPrivate::QSharedMemoryPrivate()-
62 : QObjectPrivate(), memory(0), size(0), error(QSharedMemory::NoError),-
63#ifndef QT_NO_SYSTEMSEMAPHORE-
64 systemSemaphore(QString()), lockedByMe(false),-
65#endif-
66#ifndef QT_POSIX_IPC-
67 unix_key(0)-
68#else-
69 hand(-1)-
70#endif-
71{-
72}
executed 3612 times by 3 tests: end of block
Executed by:
  • tst_QApplication
  • tst_QSharedMemory
  • tst_qsharedmemory - unknown status
3612
73-
74void QSharedMemoryPrivate::setErrorString(QLatin1String function)-
75{-
76 // EINVAL is handled in functions so they can give better error strings-
77 switch (errno) {-
78 case EACCES:
never executed: case 13:
0
79 errorString = QSharedMemory::tr("%1: permission denied").arg(function);-
80 error = QSharedMemory::PermissionDenied;-
81 break;
never executed: break;
0
82 case EEXIST:
executed 2 times by 1 test: case 17:
Executed by:
  • tst_QSharedMemory
2
83 errorString = QSharedMemory::tr("%1: already exists").arg(function);-
84 error = QSharedMemory::AlreadyExists;-
85 break;
executed 2 times by 1 test: break;
Executed by:
  • tst_QSharedMemory
2
86 case ENOENT:
never executed: case 2:
0
87 errorString = QSharedMemory::tr("%1: doesn't exist").arg(function);-
88 error = QSharedMemory::NotFound;-
89 break;
never executed: break;
0
90 case EMFILE:
never executed: case 24:
0
91 case ENOMEM:
never executed: case 12:
0
92 case ENOSPC:
never executed: case 28:
0
93 errorString = QSharedMemory::tr("%1: out of resources").arg(function);-
94 error = QSharedMemory::OutOfResources;-
95 break;
never executed: break;
0
96 default:
never executed: default:
0
97 errorString = QSharedMemory::tr("%1: unknown error %2").arg(function).arg(errno);-
98 error = QSharedMemory::UnknownError;-
99#if defined QSHAREDMEMORY_DEBUG-
100 qDebug() << errorString << "key" << key << "errno" << errno << EINVAL;-
101#endif-
102 }
never executed: end of block
0
103}-
104-
105QT_END_NAMESPACE-
106-
107#endif // QT_NO_SHAREDMEMORY-
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