gecko-dev/dom/file/ipc/PTemporaryIPCBlob.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 PChildToParentStream;
include protocol PFileDescriptorSet;
include protocol PIPCBlobInputStream;
include protocol PParentToChildStream;
include IPCBlob;
namespace mozilla {
namespace ipc {
union IPCBlobOrError
{
IPCBlob;
nsresult;
};
protocol PTemporaryIPCBlob
{
manager PBackground;
// When this actor is created on the child side, the parent will send
// immediatelly back a FileDescriptor or a __delete__ in case of error.
// When the FileDescriptor is received, the child has to call
// OperationDone(). When OperationDone() is received on the parent side, the
// parent actor will send a __delete__.
child:
async FileDesc(FileDescriptor aFD);
async __delete__(IPCBlobOrError aBlobOrError);
parent:
async OperationFailed();
async OperationDone(nsCString aContentType, FileDescriptor aFD);
};
} // namespace dom
} // namespace mozilla