QLockFilePrivate Class Reference

#include <qlockfile_p.h>

Collaboration diagram for QLockFilePrivate:

Public Member Functions
	QLockFilePrivate (const QString &fn)
QLockFile::LockError	tryLock_sys ()
bool	removeStaleLock ()
QByteArray	lockFileContents () const
bool	isApparentlyStale () const

Static Public Member Functions
static Q_CORE_EXPORT QString	processNameByPid (qint64 pid)
static bool	isProcessRunning (qint64 pid, const QString &appname)
static int	getLockFileHandle (QLockFile *f)

Public Attributes
QString	fileName
int	fileHandle = -1
std::chrono::milliseconds	staleLockTime = std::chrono::seconds{30}
QLockFile::LockError	lockError = QLockFile::NoError
bool	isLocked = false

Detailed Description

Definition at line 31 of file qlockfile_p.h.

Constructor & Destructor Documentation

QLockFilePrivate()

QLockFilePrivate::QLockFilePrivate ( const QString &  fn )

inline

Definition at line 34 of file qlockfile_p.h.

Member Function Documentation

getLockFileHandle()

static int QLockFilePrivate::getLockFileHandle ( QLockFile *  f )

inlinestatic

Definition at line 61 of file qlockfile_p.h.

isApparentlyStale()

bool QLockFilePrivate::isApparentlyStale

(

)

const

Definition at line 416 of file qlockfile.cpp.

References QSysInfo::bootUniqueId(), QDateTime::currentDateTimeUtc(), fileName, getLockInfo_helper(), info, QByteArray::isEmpty(), isProcessRunning(), QFileInfo::lastModified(), machineName(), QSysInfo::machineUniqueId(), QDateTime::msecsTo(), staleLockTime, and QTimeZone::UTC.

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isProcessRunning()

bool QLockFilePrivate::isProcessRunning ( qint64  pid, const QString &  appname  )

static

Definition at line 171 of file qlockfile_unix.cpp.

References fi, QFileInfo::fileName(), QString::isEmpty(), QFileInfo::isSymLink(), processNameByPid(), QFileInfo::setFile(), and QFileInfo::symLinkTarget().

Referenced by isApparentlyStale().

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lockFileContents()

QByteArray QLockFilePrivate::lockFileContents

(

)

const

Definition at line 376 of file qlockfile.cpp.

References QCoreApplication::applicationPid(), QSysInfo::bootUniqueId(), machineName(), QSysInfo::machineUniqueId(), QByteArray::number(), processNameByPid(), and QString::toUtf8().

Referenced by tryLock_sys().

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processNameByPid()

QString QLockFilePrivate::processNameByPid ( qint64  pid )

static

Definition at line 188 of file qlockfile_unix.cpp.

References QFile::decodeName(), QFileSystemEntry::fileName(), info, PATH_MAX, Q_UNUSED, QStringLiteral, qt_haveLinuxProcfs(), qt_readlink(), qt_safe_close(), qt_safe_open(), qt_safe_read(), and Qt::Uninitialized.

Referenced by isProcessRunning(), and lockFileContents().

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removeStaleLock()

bool QLockFilePrivate::removeStaleLock

(

)

Definition at line 160 of file qlockfile_unix.cpp.

References QString::constData(), QFile::encodeName(), fileName, lockFileName(), qt_safe_open(), and setNativeLocks().

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tryLock_sys()

QLockFile::LockError QLockFilePrivate::tryLock_sys

(

)

Definition at line 118 of file qlockfile_unix.cpp.

References QString::constData(), QByteArray::constData(), QFile::encodeName(), fileHandle, fileName, QLockFile::LockFailedError, lockFileContents(), lockFileName(), QLockFile::NoError, QLockFile::PermissionError, qt_error_string(), qt_safe_close(), qt_safe_open(), qt_write_loop(), qUtf16Printable, qWarning, QFile::remove(), setNativeLocks(), QByteArray::size(), and QLockFile::UnknownError.

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Member Data Documentation

fileHandle

int QLockFilePrivate::fileHandle = -1

Definition at line 54 of file qlockfile_p.h.

Referenced by tryLock_sys().

fileName

QString QLockFilePrivate::fileName

Definition at line 49 of file qlockfile_p.h.

Referenced by QLockFile::fileName(), isApparentlyStale(), removeStaleLock(), and tryLock_sys().

isLocked

bool QLockFilePrivate::isLocked = false

Definition at line 59 of file qlockfile_p.h.

lockError

QLockFile::LockError QLockFilePrivate::lockError = QLockFile::NoError

Definition at line 58 of file qlockfile_p.h.

staleLockTime

std::chrono::milliseconds QLockFilePrivate::staleLockTime = std::chrono::seconds{30}

Definition at line 57 of file qlockfile_p.h.

Referenced by isApparentlyStale().

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The documentation for this class was generated from the following files:

• qtbase/src/corelib/io/qlockfile_p.h
• qtbase/src/corelib/io/qlockfile.cpp
• qtbase/src/corelib/io/qlockfile_unix.cpp
• qtbase/src/corelib/io/qlockfile_win.cpp