kernel/qsystemerror.cpp

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1/**************************************************************************** -
2** -
3** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). -
4** Contact: http://www.qt-project.org/legal -
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6** This file is part of the QtCore module of the Qt Toolkit. -
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21** packaging of this file. Please review the following information to -
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26** rights. These rights are described in the Digia Qt LGPL Exception -
27** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -
28** -
29** GNU General Public License Usage -
30** Alternatively, this file may be used under the terms of the GNU -
31** General Public License version 3.0 as published by the Free Software -
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38** $QT_END_LICENSE$ -
39** -
40****************************************************************************/ -
41 -
42#include <qglobal.h> -
43#include "qsystemerror_p.h" -
44#if !defined(Q_OS_WINCE) -
45# include <errno.h> -
46# if defined(Q_CC_MSVC) -
47# include <crtdbg.h> -
48# endif -
49#else -
50# if (_WIN32_WCE >= 0x700) -
51# include <errno.h> -
52# endif -
53#endif -
54#ifdef Q_OS_WIN -
55# include <qt_windows.h> -
56#endif -
57 -
58QT_BEGIN_NAMESPACE -
59 -
60#if !defined(Q_OS_WIN) && !defined(QT_NO_THREAD) && !defined(Q_OS_INTEGRITY) && !defined(Q_OS_QNX) && \ -
61 defined(_POSIX_THREAD_SAFE_FUNCTIONS) && _POSIX_VERSION >= 200112L -
62namespace { -
63 // There are two incompatible versions of strerror_r: -
64 // a) the XSI/POSIX.1 version, which returns an int, -
65 // indicating success or not -
66 // b) the GNU version, which returns a char*, which may or may not -
67 // be the beginning of the buffer we used -
68 // The GNU libc manpage for strerror_r says you should use the XSI -
69 // version in portable code. However, it's impossible to do that if -
70 // _GNU_SOURCE is defined so we use C++ overloading to decide what to do -
71 // depending on the return type -
72 static inline QString fromstrerror_helper(int, const QByteArray &buf) -
73 { -
74 return QString::fromLocal8Bit(buf);
never executed: return QString::fromLocal8Bit(buf);
0
75 } -
76 static inline QString fromstrerror_helper(const char *str, const QByteArray &) -
77 { -
78 return QString::fromLocal8Bit(str);
executed: return QString::fromLocal8Bit(str);
Execution Count:119
119
79 } -
80} -
81#endif -
82 -
83#ifdef Q_OS_WIN -
84static QString windowsErrorString(int errorCode) -
85{ -
86 QString ret; -
87 wchar_t *string = 0; -
88 FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM, -
89 NULL, -
90 errorCode, -
91 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), -
92 (LPWSTR)&string, -
93 0, -
94 NULL); -
95 ret = QString::fromWCharArray(string); -
96 LocalFree((HLOCAL)string); -
97 -
98 if (ret.isEmpty() && errorCode == ERROR_MOD_NOT_FOUND) -
99 ret = QString::fromLatin1("The specified module could not be found."); -
100 return ret; -
101} -
102#endif -
103 -
104static QString standardLibraryErrorString(int errorCode) -
105{ -
106 const char *s = 0;
executed (the execution status of this line is deduced): const char *s = 0;
-
107 QString ret;
executed (the execution status of this line is deduced): QString ret;
-
108 switch (errorCode) { -
109 case 0: -
110 break;
never executed: break;
0
111 case EACCES: -
112 s = QT_TRANSLATE_NOOP("QIODevice", "Permission denied");
executed (the execution status of this line is deduced): s = "Permission denied";
-
113 break;
executed: break;
Execution Count:3
3
114 case EMFILE: -
115 s = QT_TRANSLATE_NOOP("QIODevice", "Too many open files");
never executed (the execution status of this line is deduced): s = "Too many open files";
-
116 break;
never executed: break;
0
117 case ENOENT: -
118 s = QT_TRANSLATE_NOOP("QIODevice", "No such file or directory");
executed (the execution status of this line is deduced): s = "No such file or directory";
-
119 break;
executed: break;
Execution Count:605
605
120 case ENOSPC: -
121 s = QT_TRANSLATE_NOOP("QIODevice", "No space left on device");
never executed (the execution status of this line is deduced): s = "No space left on device";
-
122 break;
never executed: break;
0
123 default: { -
124 #ifdef Q_OS_WINCE -
125 ret = windowsErrorString(errorCode); -
126 #else -
127 #if !defined(QT_NO_THREAD) && defined(_POSIX_THREAD_SAFE_FUNCTIONS) && _POSIX_VERSION >= 200112L && !defined(Q_OS_INTEGRITY) && !defined(Q_OS_QNX) -
128 QByteArray buf(1024, '\0');
executed (the execution status of this line is deduced): QByteArray buf(1024, '\0');
-
129 ret = fromstrerror_helper(strerror_r(errorCode, buf.data(), buf.size()), buf);
executed (the execution status of this line is deduced): ret = fromstrerror_helper(strerror_r(errorCode, buf.data(), buf.size()), buf);
-
130 #else -
131 ret = QString::fromLocal8Bit(strerror(errorCode)); -
132 #endif -
133 #endif -
134 break; }
executed: break;
Execution Count:119
119
135 } -
136 if (s) {
evaluated: s
TRUEFALSE
yes
Evaluation Count:608
yes
Evaluation Count:119
119-608
137 // ######## this breaks moc build currently -
138 // ret = QCoreApplication::translate("QIODevice", s); -
139 ret = QString::fromLatin1(s);
executed (the execution status of this line is deduced): ret = QString::fromLatin1(s);
-
140 }
executed: }
Execution Count:608
608
141 return ret.trimmed();
executed: return ret.trimmed();
Execution Count:727
727
142} -
143 -
144QString QSystemError::toString() -
145{ -
146 switch(errorScope) { -
147 case NativeError: -
148#if defined (Q_OS_WIN) -
149 return windowsErrorString(errorCode); -
150#else -
151 //unix: fall through as native and standard library are the same -
152#endif -
153 case StandardLibraryError: -
154 return standardLibraryErrorString(errorCode);
executed: return standardLibraryErrorString(errorCode);
Execution Count:727
727
155 default: -
156 qWarning("invalid error scope");
never executed (the execution status of this line is deduced): QMessageLogger("kernel/qsystemerror.cpp", 156, __PRETTY_FUNCTION__).warning("invalid error scope");
-
157 //fall through -
158 case NoError: -
159 return QLatin1String("No error");
never executed: return QLatin1String("No error");
0
160 } -
161}
never executed: }
0
162 -
163QT_END_NAMESPACE -
164 -
165 -
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