asylo::primitives::EntryHandler Class Reference

Callback structure for dispatching messages passed to the enclave. More...

#include <asylo/platform/primitives/trusted_primitives.h>

Collaboration diagram for asylo::primitives::EntryHandler:

Public Types
using	Callback = PrimitiveStatus(*)(void *context, MessageReader *in, MessageWriter *out)
	The type of all handler callbacks takes a type-erased context, a MessageReader from which to consume inputs, and a MessageWriter in which to write all return values. More...

Public Member Functions
	EntryHandler ()
	Constructs a null handler. More...
	EntryHandler (Callback callback)
	Constructs an entry handler with a callback and null context. More...
	EntryHandler (Callback callback, void *context)
	Initializes an entry handler with a callback and a context pointer. More...
bool	IsNull () const
	A predicate for whether the callback is initialized. More...
	operator bool () const
	Implicit bool conversion for null checks. More...

Public Attributes
Callback	callback
	Callback function to invoke for this entry. More...
void *	context
	Uninterpreted data passed by the runtime to invocations of the handler. More...

Detailed Description

Callback structure for dispatching messages passed to the enclave.

Each EntryHandler represents a call to inside the enclave, and will be registered with TrustedPrimitives::RegisterEntryHandler.

Member Typedef Documentation

Callback

using asylo::primitives::EntryHandler::Callback = PrimitiveStatus (*)(void *context, MessageReader *in, MessageWriter *out)

The type of all handler callbacks takes a type-erased context, a MessageReader from which to consume inputs, and a MessageWriter in which to write all return values.

Constructor & Destructor Documentation

EntryHandler() [1/3]

asylo::primitives::EntryHandler::EntryHandler ( )

inline

Constructs a null handler.

EntryHandler() [2/3]

asylo::primitives::EntryHandler::EntryHandler ( Callback  callback )

inlineexplicit

Constructs an entry handler with a callback and null context.

Parameters

callback

The callback this handler uses.

EntryHandler() [3/3]

asylo::primitives::EntryHandler::EntryHandler ( Callback  callback, void *  context  )

inline

Initializes an entry handler with a callback and a context pointer.

Parameters

callback	The callback this handler uses.
context	A type-erased non-owned pointer that is passed to the callback when called. Since an EntryHandler is registered in an enclave-global context, the object should live as long as the enclave.

Member Function Documentation

IsNull()

bool asylo::primitives::EntryHandler::IsNull ( ) const

inline

A predicate for whether the callback is initialized.

Returns

true if this handler is uninitialized.

operator bool()

asylo::primitives::EntryHandler::operator bool ( ) const

inline

Implicit bool conversion for null checks.

Member Data Documentation

callback

Callback asylo::primitives::EntryHandler::callback

Callback function to invoke for this entry.

context

void* asylo::primitives::EntryHandler::context

Uninterpreted data passed by the runtime to invocations of the handler.

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

• asylo/platform/primitives/trusted_primitives.h