Intel Extensible Firmware Interface Manuale Utente Scaricare il pdf (Pagina 103)

Services — Boot Services

Version 1.10 12/01/02 5-5

CreateEvent()

Summary

Creates an event.

Prototype

EFI_STATUS

CreateEvent (

IN UINT32 Type,

IN EFI_TPL NotifyTpl,

IN EFI_EVENT_NOTIFY NotifyFunction,

IN VOID *NotifyContext,

OUT EFI_EVENT *Event

);

Parameters

Type The type of event to create and its mode and attributes. The

#define statements in “Related Definitions” can be used to

specify an event’s mode and attributes.

NotifyTpl The task priority level of event notifications. See RaiseTPL()

NotifyFunction Pointer to the event’s notification function. See “Related

Definitions.”

NotifyContext Pointer to the notification function’s context; corresponds to

parameter Context in the notification function.

Event Pointer to the newly created event if the call succeeds; undefined

otherwise.

Related Definitions

//*******************************************************

// EFI_EVENT

//*******************************************************

typedef VOID *EFI_EVENT

//*******************************************************

// Event Types

//*******************************************************

// These types can be “ORed” together as needed – for example,

// EVT_TIMER might be “Ored” with EVT_NOTIFY_WAIT or

// EVT_NOTIFY_SIGNAL.

#define EVT_TIMER 0x80000000

#define EVT_RUNTIME 0x40000000

#define EVT_RUNTIME_CONTEXT 0x20000000

1 2 ... 98 99 100 101 102 103 104 105 106 107 108

Nessun commento

Intel Extensible Firmware Interface Manuale Utente Pagina 103