SelectEvent Class Reference

#include <select-syscalls.h>

Inheritance diagram for SelectEvent:

Collaboration diagram for SelectEvent:

Public Member Functions
	SelectEvent ()
	SelectEvent (Semaphore *pSemaphore, fd_set *pFdSet, size_t fdIdx, File *pFile)
void	fire ()
File *	getFile ()
virtual size_t	serialize (uint8_t *pBuffer)
virtual size_t	getNumber ()
Public Member Functions inherited from Event
	Event (uintptr_t handlerAddress, bool isDeletable, size_t specificNestingLevel=~0UL, HandlerPrivilege handlerPrivilege=HandlerPrivilege::Kernel)
virtual bool	isDeletable ()
uintptr_t	getHandlerAddress ()
HandlerPrivilege	getHandlerPrivilege () const
bool	isValidHandlerMapping (size_t mappingFlags) const
virtual bool	isSignalEvent () const
virtual bool	prefersAlternateUserStack () const
virtual bool	requiresExactUserReturnState () const
virtual UserReturnDelivery	deliverAtUserReturn (InterruptState &)
virtual UserReturnDelivery	deliverAtUserReturn (SyscallState &)
virtual bool	isDeliverableWhileProcessSuspended () const
virtual Event *	cloneForDelivery ()
size_t	getSpecificNestingLevel ()
	Event (const Event &other)
Event &	operator= (const Event &other)
size_t	pendingCount ()
bool	tryAcquireRegistration (SendLease &registration)
virtual void	waitForDeliveries ()
void	retire ()
void	beginRetirement (Retirement &retirement)

Static Public Member Functions
static bool	unserialize (uint8_t *pBuffer, SelectEvent &event)
Static Public Member Functions inherited from Event
static uintptr_t	getTrampoline ()
static uintptr_t	getSecondaryTrampoline ()
static uintptr_t	getHandlerBuffer ()
static size_t	getHandlerBufferSize ()
static uintptr_t	getLastHandlerBuffer ()
static bool	unserialize (uint8_t *pBuffer, Event &event)
static size_t	getEventType (uint8_t *pBuffer)

Private Attributes
Semaphore *	m_pSemaphore
fd_set *	m_pFdSet
size_t	m_FdIdx
File *	m_pFile

Additional Inherited Members
Public Types inherited from Event
enum class	HandlerPrivilege { Kernel , User }
enum class	UserReturnDelivery { NotApplicable , Delivered , Failed }
Protected Attributes inherited from Event
uintptr_t	m_HandlerAddress
HandlerPrivilege	m_HandlerPrivilege
bool	m_bIsDeletable
size_t	m_NestingLevel
uint64_t	m_Magic
List< Thread * >	m_Threads
Spinlock	m_Lock

Detailed Description

Event class for passing to File::monitor.

Definition at line 30 of file select-syscalls.h.

Constructor & Destructor Documentation

SelectEvent()

SelectEvent::SelectEvent

(

)

The constructor takes a semaphore that it should signal when it fires, and an fd_set with an index to set.

Member Function Documentation

getFile()

File * SelectEvent::getFile ( )

inline

Definition at line 40 of file select-syscalls.h.

getNumber()

virtual size_t SelectEvent::getNumber ( )

inlinevirtual

Returns the event number / ID.

Implements Event.

Definition at line 49 of file select-syscalls.h.

serialize()

virtual size_t SelectEvent::serialize ( uint8_t *  pBuffer )

virtual

Given a buffer EVENT_LIMIT bytes long, take the variables present in this object and convert them to a binary form.

It can be assumed that this function will only be called when the Event is about to be dispatched, and so the inhibited mask of the current Thread is available to be changed to what the event handler requires. This change will be undone when the handler completes.

Parameters

pBuffer

The buffer to serialize to.

Returns

The number of bytes serialized.

Implements Event.

Member Data Documentation

m_FdIdx

size_t SelectEvent::m_FdIdx

private

Definition at line 56 of file select-syscalls.h.

m_pFdSet

fd_set* SelectEvent::m_pFdSet

private

Definition at line 55 of file select-syscalls.h.

m_pFile

File* SelectEvent::m_pFile

private

Definition at line 57 of file select-syscalls.h.

m_pSemaphore

Semaphore* SelectEvent::m_pSemaphore

private

Definition at line 54 of file select-syscalls.h.

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

• select-syscalls.h