gecko-dev/dom/indexedDB/PBackgroundIDBRequest.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 PBackgroundIDBTransaction;
include protocol PBackgroundIDBVersionChangeTransaction;
include protocol PBackgroundMutableFile;
include protocol PChildToParentStream; // FIXME: bug 792908
include protocol PFileDescriptorSet; // FIXME: bug 792908
include protocol PParentToChildStream; // FIXME: bug 792908
include protocol PRemoteLazyInputStream; // FIXME: bug 792908
include PBackgroundIDBSharedTypes;
include "mozilla/dom/indexedDB/SerializationHelpers.h";
using struct mozilla::void_t from "mozilla/ipc/IPCCore.h";
using class mozilla::dom::indexedDB::Key
from "mozilla/dom/indexedDB/Key.h";
namespace mozilla {
namespace dom {
namespace indexedDB {
struct ObjectStoreAddResponse
{
Key key;
};
struct ObjectStorePutResponse
{
Key key;
};
struct ObjectStoreGetResponse
{
SerializedStructuredCloneReadInfo cloneInfo;
};
struct ObjectStoreGetKeyResponse
{
Key key;
};
struct ObjectStoreGetAllResponse
{
SerializedStructuredCloneReadInfo[] cloneInfos;
};
struct ObjectStoreGetAllKeysResponse
{
Key[] keys;
};
struct ObjectStoreDeleteResponse
{ };
struct ObjectStoreClearResponse
{ };
struct ObjectStoreCountResponse
{
uint64_t count;
};
struct IndexGetResponse
{
SerializedStructuredCloneReadInfo cloneInfo;
};
struct IndexGetKeyResponse
{
Key key;
};
struct IndexGetAllResponse
{
SerializedStructuredCloneReadInfo[] cloneInfos;
};
struct IndexGetAllKeysResponse
{
Key[] keys;
};
struct IndexCountResponse
{
uint64_t count;
};
union RequestResponse
{
nsresult;
ObjectStoreGetResponse;
ObjectStoreGetKeyResponse;
ObjectStoreAddResponse;
ObjectStorePutResponse;
ObjectStoreDeleteResponse;
ObjectStoreClearResponse;
ObjectStoreCountResponse;
ObjectStoreGetAllResponse;
ObjectStoreGetAllKeysResponse;
IndexGetResponse;
IndexGetKeyResponse;
IndexGetAllResponse;
IndexGetAllKeysResponse;
IndexCountResponse;
};
struct PreprocessInfo
{
SerializedStructuredCloneFile[] files;
};
struct ObjectStoreGetPreprocessParams
{
PreprocessInfo preprocessInfo;
};
struct ObjectStoreGetAllPreprocessParams
{
PreprocessInfo[] preprocessInfos;
};
union PreprocessParams
{
ObjectStoreGetPreprocessParams;
ObjectStoreGetAllPreprocessParams;
};
struct ObjectStoreGetPreprocessResponse
{
};
struct ObjectStoreGetAllPreprocessResponse
{
};
// The nsresult is used if an error occurs for any preprocess request type.
// The specific response types are sent on success.
union PreprocessResponse
{
nsresult;
ObjectStoreGetPreprocessResponse;
ObjectStoreGetAllPreprocessResponse;
};
protocol PBackgroundIDBRequest
{
manager PBackgroundIDBTransaction or PBackgroundIDBVersionChangeTransaction;
parent:
async Continue(PreprocessResponse response);
child:
async __delete__(RequestResponse response);
// Preprocess is used in cases where response processing needs to do something
// asynchronous off of the child actor's thread before returning the actual
// result to user code. This is necessary because RequestResponse processing
// occurs in __delete__ and the PBackgroundIDBRequest implementations'
// life-cycles are controlled by IPC and are not otherwise reference counted.
// By introducing the (optional) Preprocess/Continue steps reference counting
// or the introduction of additional runnables are avoided.
async Preprocess(PreprocessParams params);
};
} // namespace indexedDB
} // namespace dom
} // namespace mozilla