DescriptorLease Class Reference

#include <PosixSubsystem.h>

Collaboration diagram for DescriptorLease:

Public Member Functions
	DescriptorLease (DescriptorLease &&other) noexcept
DescriptorLease &	operator= (DescriptorLease &&other) noexcept
	DescriptorLease (const DescriptorLease &)=delete
DescriptorLease &	operator= (const DescriptorLease &)=delete
FileDescriptor *	operator-> () const
FileDescriptor &	operator* () const
	operator bool () const
void	reset ()

Private Member Functions
void	retain (const SharedPointer< FileDescriptor > &descriptor)

Private Attributes
SharedPointer< FileDescriptor >	m_Descriptor

Friends
class	PosixSubsystem
bool	acquireDescriptor (int fd, DescriptorLease &descriptor)
bool	removeDescriptor (int fd, const DescriptorLease &descriptor)
size_t	installDescriptor (FileDescriptor *descriptor, DescriptorLease &lease)

Detailed Description

A move-only lifetime pin for one published descriptor generation.

The control block and raw pointer are deliberately not exposed. Numeric fd lookup can therefore only produce an object whose lexical lifetime keeps the descriptor alive across blocking operations and concurrent close/reuse.

Definition at line 64 of file PosixSubsystem.h.

Constructor & Destructor Documentation

DescriptorLease() [1/2]

DescriptorLease::DescriptorLease ( )

inline

Definition at line 66 of file PosixSubsystem.h.

DescriptorLease() [2/2]

DescriptorLease::DescriptorLease ( DescriptorLease &&  other )

inlinenoexcept

Definition at line 68 of file PosixSubsystem.h.

Member Function Documentation

operator bool()

DescriptorLease::operator bool ( ) const

inlineexplicit

Definition at line 89 of file PosixSubsystem.h.

operator*()

FileDescriptor & DescriptorLease::operator* ( ) const

inline

Definition at line 85 of file PosixSubsystem.h.

operator->()

FileDescriptor * DescriptorLease::operator-> ( ) const

inline

Definition at line 81 of file PosixSubsystem.h.

operator=()

DescriptorLease & DescriptorLease::operator= ( DescriptorLease &&  other )

inlinenoexcept

Definition at line 71 of file PosixSubsystem.h.

reset()

void DescriptorLease::reset ( )

inline

Definition at line 93 of file PosixSubsystem.h.

retain()

void DescriptorLease::retain ( const SharedPointer< FileDescriptor > &  descriptor )

inlineprivate

Definition at line 103 of file PosixSubsystem.h.

Friends And Related Symbol Documentation

acquireDescriptor

bool acquireDescriptor ( int  fd, DescriptorLease &  descriptor  )

friend

Definition at line 115 of file modules/subsys/posix/util.cc.

installDescriptor

size_t installDescriptor ( FileDescriptor *  descriptor, DescriptorLease &  lease  )

friend

Definition at line 139 of file modules/subsys/posix/util.cc.

PosixSubsystem

friend class PosixSubsystem

friend

Definition at line 98 of file PosixSubsystem.h.

removeDescriptor

bool removeDescriptor ( int  fd, const DescriptorLease &  descriptor  )

friend

Definition at line 129 of file modules/subsys/posix/util.cc.

Member Data Documentation

m_Descriptor

SharedPointer<FileDescriptor> DescriptorLease::m_Descriptor

private

Definition at line 107 of file PosixSubsystem.h.

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

• PosixSubsystem.h