class ResponseContext

Defined at line 80 of file ../../sdk/lib/fidl/cpp/wire/include/lib/fidl/cpp/wire/client_base.h

|ResponseContext| contains information about an outstanding asynchronous

method call. It inherits from an intrusive container node so that

|ClientBase| can track it without requiring heap allocation.

The generated code will define type-specific response contexts e.g.

|fidl::WireResponseContext

<FooMethod

>|, that inherits from |ResponseContext|

and interprets the bytes passed to the |OnRawResult| call appropriately.

Users should interact with those subclasses; see the lifecycle notes on

|WireResponseContext|.

NOTE: |ResponseContext| are additionally referenced with a |list_node_t|

in order to safely iterate over outstanding transactions on |ClientBase|

destruction, releasing each outstanding response context.

Public Methods

std::optional<fidl::UnbindInfo> OnRawResult (::fidl::IncomingHeaderAndMessage && result, internal::MessageStorageViewBase * storage_view)

Invoked when a response has been received or an error was detected for this

context. |OnRawResult| is allowed to consume the current object.

## If |result| represents a success

|result| references the incoming message in encoded form.

Ownership of bytes referenced by |result| stays with the caller.

The callee should not access the bytes in |result| once this method returns.

Ownership of handles referenced by |result| is transferred to the callee.

If there was an error decoding |result|, the implementation should return

that error as a present |fidl::UnbindInfo|. Otherwise, the implementation

should return |std::nullopt|.

## If |result| represents an error

An error occurred while processing this FIDL call:

- Failed to encode the outgoing request specific to this call.

- The peer endpoint was closed.

- Error from the |async_dispatcher_t|.

- Error from the underlying transport.

- The server sent a malformed message.

- The user explicitly initiated binding teardown.

- The call raced with an external error in the meantime that caused binding

teardown.

See |WireResponseContext

<FidlMethod

>::OnResult| for more details.

void ResponseContext (uint64_t ordinal)

Defined at line 84 of file ../../sdk/lib/fidl/cpp/wire/include/lib/fidl/cpp/wire/client_base.h

void ~ResponseContext ()

Defined at line 88 of file ../../sdk/lib/fidl/cpp/wire/include/lib/fidl/cpp/wire/client_base.h

void ResponseContext (const ResponseContext & other)

|ResponseContext| objects are "pinned" in memory.

Defined at line 91 of file ../../sdk/lib/fidl/cpp/wire/include/lib/fidl/cpp/wire/client_base.h

ResponseContext & operator= (const ResponseContext & other)

Defined at line 92 of file ../../sdk/lib/fidl/cpp/wire/include/lib/fidl/cpp/wire/client_base.h

void ResponseContext (ResponseContext && other)

Defined at line 93 of file ../../sdk/lib/fidl/cpp/wire/include/lib/fidl/cpp/wire/client_base.h

ResponseContext & operator= (ResponseContext && other)

Defined at line 94 of file ../../sdk/lib/fidl/cpp/wire/include/lib/fidl/cpp/wire/client_base.h

uint64_t ordinal ()

Defined at line 96 of file ../../sdk/lib/fidl/cpp/wire/include/lib/fidl/cpp/wire/client_base.h

zx_txid_t Txid ()

Defined at line 97 of file ../../sdk/lib/fidl/cpp/wire/include/lib/fidl/cpp/wire/client_base.h

void OnError (::fidl::Status error)

A helper around |OnRawResult| to directly notify an error to the context.

Defined at line 134 of file ../../sdk/lib/fidl/cpp/wire/include/lib/fidl/cpp/wire/client_base.h

Friends

class ClientBase

class ResponseContextAsyncErrorTask