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#include "qplatformdefs.h"
#include <QtCore/private/qglobal_p.h>
#include "qbytearray.h"
#include "qdeadlinetimer.h"
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <sys/select.h>
#include <sys/time.h>
#include <chrono>
#include <sys/wait.h>
#include <errno.h>
#include <fcntl.h>
#include <poll.h>

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Classes
union	qt_semun

Macros
#define	QT_EINTR_LOOP(var, cmd)

#define	QT_OPEN qt_safe_open

#define	QT_READ qt_safe_read

#define	QT_WRITE qt_safe_write

#define	QT_CLOSE qt_safe_close

#define	_POSIX_MONOTONIC_CLOCK -1

Functions
QT_BEGIN_NAMESPACE	Q_DECLARE_TYPEINFO (pollfd, Q_PRIMITIVE_TYPE)

timespec	durationToTimespec (std::chrono::nanoseconds timeout) noexcept

template<typename Duration >
Duration	timespecToChrono (timespec ts) noexcept

std::chrono::milliseconds	timespecToChronoMs (timespec ts) noexcept

constexpr timespec &	normalizedTimespec (timespec &t)

constexpr bool	operator< (const timespec &t1, const timespec &t2)

constexpr bool	operator== (const timespec &t1, const timespec &t2)

constexpr bool	operator!= (const timespec &t1, const timespec &t2)

constexpr timespec &	operator+= (timespec &t1, const timespec &t2)

constexpr timespec	operator+ (const timespec &t1, const timespec &t2)

constexpr timespec	operator- (const timespec &t1, const timespec &t2)

constexpr timespec	operator* (const timespec &t1, int mul)

timeval	timespecToTimeval (timespec ts)

timespec &	operator+= (timespec &t1, std::chrono::milliseconds msecs)

timespec &	operator+= (timespec &t1, int ms)

timespec	operator+ (const timespec &t1, std::chrono::milliseconds msecs)

timespec	operator+ (const timespec &t1, int ms)

timespec	qAbsTimespec (timespec ts)

Q_CORE_EXPORT void	qt_ignore_sigpipe () noexcept

static int	qt_safe_open (const char *pathname, int flags, mode_t mode=0777)

static int	qt_safe_pipe (int pipefd[2], int flags=0)

static int	qt_safe_dup (int oldfd, int atleast=0, int flags=FD_CLOEXEC)

static int	qt_safe_dup2 (int oldfd, int newfd, int flags=FD_CLOEXEC)

static qint64	qt_safe_read (int fd, void *data, qint64 maxlen)

static qint64	qt_safe_write (int fd, const void *data, qint64 len)

static qint64	qt_safe_write_nosignal (int fd, const void *data, qint64 len)

static int	qt_safe_close (int fd)

QByteArray	qt_readlink (const char *path)

bool	qt_haveLinuxProcfs ()

Q_CORE_EXPORT int	qt_safe_poll (struct pollfd *fds, nfds_t nfds, QDeadlineTimer deadline)

static struct pollfd	qt_make_pollfd (int fd, short events)

Variables
static constexpr auto	OneSecAsNsecs = std::chrono::nanoseconds(std::chrono::seconds{ 1 }).count()

Macro Definition Documentation

◆ _POSIX_MONOTONIC_CLOCK

#define _POSIX_MONOTONIC_CLOCK -1

Definition at line 362 of file qcore_unix_p.h.

◆ QT_CLOSE

#define QT_CLOSE qt_safe_close

Definition at line 327 of file qcore_unix_p.h.

Referenced by QEvdevTouchScreenHandler::QEvdevTouchScreenHandler(), QBluetoothSocketPrivateBluez::~QBluetoothSocketPrivateBluez(), QEvdevTabletHandler::~QEvdevTabletHandler(), QEvdevTouchScreenHandler::~QEvdevTouchScreenHandler(), QFSFileEngine::~QFSFileEngine(), QBluetoothSocketPrivateBluez::abort(), QFSFileEnginePrivate::closeFdFh(), QBluetoothSocketPrivateBluez::ensureNativeSocket(), qt_safe_close(), QEvdevTabletHandler::readData(), QEvdevTouchScreenHandler::readData(), resetTty(), and QBluetoothSocketPrivateBluez::setSocketDescriptor().

◆ QT_EINTR_LOOP

#define QT_EINTR_LOOP	(		var,
			cmd )

Value:

    do {                                        \
        var = cmd;                              \
    } while (var == -1 && errno == EINTR)

Definition at line 59 of file qcore_unix_p.h.

Referenced by QTest::CrashHandler::generateStackTrace(), QNativeSocketEnginePrivate::nativeHasPendingDatagrams(), QNativeSocketEnginePrivate::nativePendingDatagramSize(), QFSFileEnginePrivate::nativeSyncToDisk(), qt_nanosleep(), qt_poll_examine_ready_read(), qt_poll_is_bad_fd(), qt_safe_close(), qt_safe_connect(), qt_safe_dup2(), qt_safe_open(), qt_safe_poll(), qt_safe_read(), qt_safe_recvmsg(), qt_safe_sendmsg(), and qt_safe_write().

◆ QT_OPEN

#define QT_OPEN qt_safe_open

Definition at line 221 of file qcore_unix_p.h.

Referenced by QBsdKeyboardHandler::QBsdKeyboardHandler(), QBsdMouseHandler::QBsdMouseHandler(), QEvdevTabletHandler::QEvdevTabletHandler(), QEvdevTouchScreenHandler::QEvdevTouchScreenHandler(), openFramebufferDevice(), openFramebufferDevice(), openTtyDevice(), and qt_safe_open().

◆ QT_READ

#define QT_READ qt_safe_read

Definition at line 303 of file qcore_unix_p.h.

Referenced by qt_safe_read(), QEvdevTabletHandler::readData(), QEvdevTouchScreenHandler::readData(), QFSFileEnginePrivate::readFdFh(), and QEvdevMouseHandler::readMouseData().

◆ QT_WRITE

#define QT_WRITE qt_safe_write

Definition at line 312 of file qcore_unix_p.h.

Referenced by qt_safe_write(), and QFSFileEnginePrivate::writeFdFh().

Function Documentation

◆ durationToTimespec()

timespec durationToTimespec ( std::chrono::nanoseconds timeout )

inlinenoexcept

Definition at line 70 of file qcore_unix_p.h.

Referenced by QtLinuxFutex::futexWait(), QtFreeBSDFutex::futexWait(), operator+=(), qt_abstime_for_timeout(), qt_safe_poll(), QFileSystemEngine::setFileTime(), QThread::sleep(), and QMutexPrivate::wait().

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◆ normalizedTimespec()

constexpr timespec & normalizedTimespec ( timespec & t )

inlineconstexpr

Definition at line 94 of file qcore_unix_p.h.

References OneSecAsNsecs.

Referenced by operator*(), operator+(), operator+=(), operator-(), and qAbsTimespec().

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◆ operator!=()

constexpr bool operator!=	(	const timespec &	t1,
		const timespec &	t2 )

inlineconstexpr

Definition at line 110 of file qcore_unix_p.h.

References t2.

Referenced by QT6_ONLY().

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◆ operator*()

constexpr timespec operator*	(	const timespec &	t1,
		int	mul )

inlineconstexpr

Definition at line 132 of file qcore_unix_p.h.

References normalizedTimespec().

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◆ operator+() [1/3]

constexpr timespec operator+	(	const timespec &	t1,
		const timespec &	t2 )

inlineconstexpr

Definition at line 118 of file qcore_unix_p.h.

References normalizedTimespec(), and t2.

Referenced by QJsonArray::iterator::operator-(), QJsonArray::const_iterator::operator-(), QJsonObject::iterator::operator-(), and QJsonObject::const_iterator::operator-().

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◆ operator+() [2/3]

timespec operator+	(	const timespec &	t1,
		int	ms )

inline

Definition at line 166 of file qcore_unix_p.h.

◆ operator+() [3/3]

timespec operator+	(	const timespec &	t1,
		std::chrono::milliseconds	msecs )

inline

Definition at line 159 of file qcore_unix_p.h.

References t1.

◆ operator+=() [1/3]

constexpr timespec & operator+=	(	timespec &	t1,
		const timespec &	t2 )

inlineconstexpr

Definition at line 112 of file qcore_unix_p.h.

References normalizedTimespec(), and t2.

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◆ operator+=() [2/3]

timespec & operator+=	(	timespec &	t1,
		int	ms )

inline

Definition at line 153 of file qcore_unix_p.h.

References t1.

◆ operator+=() [3/3]

timespec & operator+=	(	timespec &	t1,
		std::chrono::milliseconds	msecs )

inline

Definition at line 147 of file qcore_unix_p.h.

References durationToTimespec(), and t1.

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◆ operator-()

constexpr timespec operator-	(	const timespec &	t1,
		const timespec &	t2 )

inlineconstexpr

Definition at line 125 of file qcore_unix_p.h.

References normalizedTimespec(), OneSecAsNsecs, and t2.

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◆ operator<()

constexpr bool operator<	(	const timespec &	t1,
		const timespec &	t2 )

inlineconstexpr

Definition at line 106 of file qcore_unix_p.h.

References t2.

◆ operator==()

constexpr bool operator==	(	const timespec &	t1,
		const timespec &	t2 )

inlineconstexpr

Definition at line 108 of file qcore_unix_p.h.

References t2.

◆ Q_DECLARE_TYPEINFO()

QT_BEGIN_NAMESPACE Q_DECLARE_TYPEINFO	(	pollfd	,
		Q_PRIMITIVE_TYPE	)

◆ qAbsTimespec()

timespec qAbsTimespec ( timespec ts )

inline

Definition at line 171 of file qcore_unix_p.h.

References normalizedTimespec(), and OneSecAsNsecs.

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◆ qt_haveLinuxProcfs()

bool qt_haveLinuxProcfs ( )

inline

Definition at line 368 of file qcore_unix_p.h.

Referenced by bluetoothdVersion(), and QLockFilePrivate::processNameByPid().

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◆ qt_ignore_sigpipe()

Q_CORE_EXPORT void qt_ignore_sigpipe ( )

noexcept

Definition at line 23 of file qcore_unix.cpp.

References Q_BASIC_ATOMIC_INITIALIZER.

Referenced by qt_safe_sendmsg(), and qt_safe_write_nosignal().

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◆ qt_make_pollfd()

static struct pollfd qt_make_pollfd	(	int	fd,
		short	events )

inlinestatic

Definition at line 384 of file qcore_unix_p.h.

Referenced by QNativeSocketEnginePrivate::nativeSelect(), QThreadPipe::prepare(), and QEventDispatcherUNIX::processEvents().

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◆ qt_readlink()

QByteArray qt_readlink ( const char * path )

Definition at line 38 of file qcore_unix.cpp.

References PATH_MAX, QByteArray(), and Qt::Uninitialized.

Referenced by QFileSystemEngine::getLinkTarget(), QFileSystemEngine::getRawLinkPath(), QLockFilePrivate::processNameByPid(), and qAppFileName().

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◆ qt_safe_close()

static int qt_safe_close ( int fd )

inlinestatic

Definition at line 320 of file qcore_unix_p.h.

References QT_CLOSE, QT_EINTR_LOOP, and ret.

Referenced by QBsdFbScreen::~QBsdFbScreen(), QEvdevMouseHandler::~QEvdevMouseHandler(), QQnxNavigatorPps::~QQnxNavigatorPps(), QV4L2FileDescriptor::~QV4L2FileDescriptor(), QSysInfo::bootUniqueId(), QEglFSKmsGbmDevice::close(), QEglFSKmsVsp2Device::close(), QLinuxFbDevice::close(), QGstImpl::QFileDescriptorHandleTraits::close(), QNetworkInterfaceManager::interfaceIndexFromName(), QNetworkInterfaceManager::interfaceNameFromIndex(), liClose(), QSysInfo::machineUniqueId(), mandatoryHciIoctlsAvailable(), QNativeSocketEnginePrivate::nativeClose(), QEglFSKmsGbmDevice::open(), QEglFSKmsVsp2Device::open(), QLinuxFbDevice::open(), QEglFSMaliIntegration::platformInit(), QLockFilePrivate::processNameByPid(), QEvdevMouseHandler::readMouseData(), QFdContainer::reset(), stderrHasConsoleAttached(), and QLockFilePrivate::tryLock_sys().

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◆ qt_safe_dup()

static int qt_safe_dup	(	int	oldfd,
		int	atleast = 0,
		int	flags = FD_CLOEXEC )

inlinestatic

Definition at line 255 of file qcore_unix_p.h.

References Q_ASSERT, and ret.

Referenced by QKqueueFileSystemWatcherEngine::addPaths().

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◆ qt_safe_dup2()

static int qt_safe_dup2	(	int	oldfd,
		int	newfd,
		int	flags = FD_CLOEXEC )

inlinestatic

Definition at line 276 of file qcore_unix_p.h.

References Q_ASSERT, QT_EINTR_LOOP, and ret.

◆ qt_safe_open()

static int qt_safe_open	(	const char *	pathname,
		int	flags,
		mode_t	mode = 0777 )

inlinestatic

Definition at line 205 of file qcore_unix_p.h.

References QT_EINTR_LOOP, and QT_OPEN.

Referenced by QKqueueFileSystemWatcherEngine::addPaths(), QSysInfo::bootUniqueId(), QEvdevMouseHandler::create(), QEvdevKeyboardHandler::create(), liOpen(), QSysInfo::machineUniqueId(), QEglFSKmsGbmDevice::open(), QEglFSKmsEglDevice::open(), QEglFSKmsVsp2Device::open(), QLinuxFbDevice::open(), QEglFSDeviceIntegration::platformInit(), QEglFSMaliIntegration::platformInit(), QLockFilePrivate::processNameByPid(), QLockFilePrivate::removeStaleLock(), retrieveLabelViaIoctl(), QQnxButtonEventNotifier::start(), stderrHasConsoleAttached(), and QLockFilePrivate::tryLock_sys().

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◆ qt_safe_pipe()

static int qt_safe_pipe	(	int	pipefd[2],
		int	flags = 0 )

inlinestatic

Definition at line 226 of file qcore_unix_p.h.

References Q_ASSERT, and ret.

Referenced by QThreadPipe::init(), QtWaylandClient::QWaylandMimeData::retrieveData_sys(), and QtWaylandClient::EventThread::run().

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◆ qt_safe_poll()

Q_CORE_EXPORT int qt_safe_poll	(	struct pollfd *	fds,
		nfds_t	nfds,
		QDeadlineTimer	deadline )

Behaves as close to POSIX poll(2) as practical but may be implemented using select(2) where necessary. In that case, returns -1 and sets errno to EINVAL if passed any descriptor greater than or equal to FD_SETSIZE.

Definition at line 121 of file qcore_unix.cpp.

References deadline, durationToTimespec(), QDeadlineTimer::isForever(), QT_EINTR_LOOP, qt_ppoll(), QDeadlineTimer::remainingTimeAsDuration(), and ret.

Referenced by QNativeSocketEnginePrivate::nativeSelect(), and QEventDispatcherUNIX::processEvents().

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◆ qt_safe_read()

static qint64 qt_safe_read	(	int	fd,
		void *	data,
		qint64	maxlen )

inlinestatic

Definition at line 296 of file qcore_unix_p.h.

References QT_EINTR_LOOP, QT_READ, and ret.

Referenced by QSysInfo::bootUniqueId(), LeCmacCalculator::calculateMac(), QOpenGLProgramBinaryCache::load(), QSysInfo::machineUniqueId(), QNativeSocketEnginePrivate::nativeRead(), QLockFilePrivate::processNameByPid(), QBsdKeyboardHandler::readKeyboardData(), and QEvdevKeyboardHandler::readKeycode().

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◆ qt_safe_write()

static qint64 qt_safe_write	(	int	fd,
		const void *	data,
		qint64	len )

inlinestatic

Definition at line 305 of file qcore_unix_p.h.

References QT_EINTR_LOOP, QT_WRITE, and ret.

Referenced by LeCmacCalculator::calculateMac(), qt_safe_write_nosignal(), qt_write_loop(), QThreadPipe::wakeUp(), and QBluetoothSocketPrivateBluez::writeData().

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◆ qt_safe_write_nosignal()

static qint64 qt_safe_write_nosignal	(	int	fd,
		const void *	data,
		qint64	len )

inlinestatic

Definition at line 314 of file qcore_unix_p.h.

References qt_ignore_sigpipe(), and qt_safe_write().

Referenced by QNativeSocketEnginePrivate::nativeWrite().

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◆ timespecToChrono()

template<typename Duration >

Duration timespecToChrono ( timespec ts )

inlinenoexcept

Definition at line 82 of file qcore_unix_p.h.

◆ timespecToChronoMs()

std::chrono::milliseconds timespecToChronoMs ( timespec ts )

inlinenoexcept

Definition at line 88 of file qcore_unix_p.h.

◆ timespecToTimeval()

timeval timespecToTimeval ( timespec ts )

inline

Definition at line 139 of file qcore_unix_p.h.

Referenced by qt_poll().

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Variable Documentation

◆ OneSecAsNsecs

constexpr auto OneSecAsNsecs = std::chrono::nanoseconds(std::chrono::seconds{ 1 }).count()

staticconstexpr

Definition at line 68 of file qcore_unix_p.h.

Referenced by normalizedTimespec(), operator-(), and qAbsTimespec().

(f96a17225f088a5790655c01eaab9578c81a19f2)

Classes

Macros

Functions

Variables

Macro Definition Documentation

◆ _POSIX_MONOTONIC_CLOCK

◆ QT_CLOSE

◆ QT_EINTR_LOOP

◆ QT_OPEN

◆ QT_READ

◆ QT_WRITE

Function Documentation

◆ durationToTimespec()

◆ normalizedTimespec()

◆ operator!=()

◆ operator*()

◆ operator+() [1/3]

◆ operator+() [2/3]

◆ operator+() [3/3]

◆ operator+=() [1/3]

◆ operator+=() [2/3]

◆ operator+=() [3/3]

◆ operator-()

◆ operator<()

◆ operator==()

◆ Q_DECLARE_TYPEINFO()

◆ qAbsTimespec()

◆ qt_haveLinuxProcfs()

◆ qt_ignore_sigpipe()

◆ qt_make_pollfd()

◆ qt_readlink()

◆ qt_safe_close()

◆ qt_safe_dup()

◆ qt_safe_dup2()

◆ qt_safe_open()

◆ qt_safe_pipe()

◆ qt_safe_poll()

◆ qt_safe_read()

◆ qt_safe_write()

◆ qt_safe_write_nosignal()

◆ timespecToChrono()

◆ timespecToChronoMs()

◆ timespecToTimeval()

Variable Documentation

◆ OneSecAsNsecs