gecko-dev/dom/file/ipc/PIPCBlobInputStream.ipdl

46 строки
1.4 KiB
Plaintext

/* 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 PChildToParentStream;
include protocol PContent;
include protocol PContentBridge;
include protocol PFileDescriptorSet;
include protocol PParentToChildStream;
include IPCStream;
namespace mozilla {
namespace ipc {
protocol PIPCBlobInputStream
{
manager PBackground or PContent or PContentBridge;
parent:
async StreamNeeded();
// When this is called, the parent releases the inputStream and sends a
// __delete__.
async Close();
child:
async StreamReady(OptionalIPCStream aStream);
both:
// __delete__ can be called by parent and by child for 2 reasons:
// - parent->child: This happens after a Close(). The child wants to inform
// the parent that no other messages will be dispatched and
// that the channel can be interrupted.
// - child->parent: before any operation, the child could start a migration
// from the current thread to a dedicated DOM-File one. The
// reason why a __delete__ is sent from child to parent is
// because it doesn't require any additional runnables.
async __delete__();
};
} // namespace dom
} // namespace mozilla