gecko-dev/dom/messagechannel/PMessagePort.ipdl

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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
include protocol PBackground;
include protocol PBlob;
include DOMTypes;
using struct mozilla::SerializedStructuredCloneBuffer
from "ipc/IPCMessageUtils.h";
namespace mozilla {
namespace dom {
struct MessagePortMessage
{
SerializedStructuredCloneBuffer data;
PBlob[] blobs;
MessagePortIdentifier[] transferredPorts;
};
// This protocol is used for the MessageChannel/MessagePort API
protocol PMessagePort
{
manager PBackground;
/* Many of these methods are used just for the shutdown sequence. The
correct sequence for the child actor is:
1. SendStopSendingData();
2. RecvStopSendingDataConfirmed();
3. SendClose();
4. Recv__delete__(); */
/* When the port is transferred the sequence is:
1. SendStopSendingData();
2. RecvStopSendingDataConfirmed();
3. SendDisentangle();
4. Recv__delete__(); */
parent:
async PostMessages(MessagePortMessage[] messages);
async Disentangle(MessagePortMessage[] messages);
async StopSendingData();
async Close();
child:
async Entangled(MessagePortMessage[] messages);
async ReceiveData(MessagePortMessage[] messages);
async StopSendingDataConfirmed();
async __delete__();
};
} // namespace dom
} // namespace mozilla