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Diffstat (limited to 'dom/cache/CacheOpChild.cpp')
| -rw-r--r-- | dom/cache/CacheOpChild.cpp | 268 |
1 files changed, 268 insertions, 0 deletions
diff --git a/dom/cache/CacheOpChild.cpp b/dom/cache/CacheOpChild.cpp new file mode 100644 index 000000000..fecac8307 --- /dev/null +++ b/dom/cache/CacheOpChild.cpp @@ -0,0 +1,268 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* 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 "mozilla/dom/cache/CacheOpChild.h" + +#include "mozilla/dom/Promise.h" +#include "mozilla/dom/Request.h" +#include "mozilla/dom/Response.h" +#include "mozilla/dom/cache/Cache.h" +#include "mozilla/dom/cache/CacheChild.h" +#include "mozilla/dom/cache/CacheStreamControlChild.h" + +namespace mozilla { +namespace dom { +namespace cache { + +using mozilla::ipc::PBackgroundChild; + +namespace { + +void +AddWorkerHolderToStreamChild(const CacheReadStream& aReadStream, + CacheWorkerHolder* aWorkerHolder) +{ + MOZ_ASSERT_IF(!NS_IsMainThread(), aWorkerHolder); + CacheStreamControlChild* cacheControl = + static_cast<CacheStreamControlChild*>(aReadStream.controlChild()); + if (cacheControl) { + cacheControl->SetWorkerHolder(aWorkerHolder); + } +} + +void +AddWorkerHolderToStreamChild(const CacheResponse& aResponse, + CacheWorkerHolder* aWorkerHolder) +{ + MOZ_ASSERT_IF(!NS_IsMainThread(), aWorkerHolder); + + if (aResponse.body().type() == CacheReadStreamOrVoid::Tvoid_t) { + return; + } + + AddWorkerHolderToStreamChild(aResponse.body().get_CacheReadStream(), + aWorkerHolder); +} + +void +AddWorkerHolderToStreamChild(const CacheRequest& aRequest, + CacheWorkerHolder* aWorkerHolder) +{ + MOZ_ASSERT_IF(!NS_IsMainThread(), aWorkerHolder); + + if (aRequest.body().type() == CacheReadStreamOrVoid::Tvoid_t) { + return; + } + + AddWorkerHolderToStreamChild(aRequest.body().get_CacheReadStream(), + aWorkerHolder); +} + +} // namespace + +CacheOpChild::CacheOpChild(CacheWorkerHolder* aWorkerHolder, + nsIGlobalObject* aGlobal, + nsISupports* aParent, Promise* aPromise) + : mGlobal(aGlobal) + , mParent(aParent) + , mPromise(aPromise) +{ + MOZ_DIAGNOSTIC_ASSERT(mGlobal); + MOZ_DIAGNOSTIC_ASSERT(mParent); + MOZ_DIAGNOSTIC_ASSERT(mPromise); + + MOZ_ASSERT_IF(!NS_IsMainThread(), aWorkerHolder); + SetWorkerHolder(aWorkerHolder); +} + +CacheOpChild::~CacheOpChild() +{ + NS_ASSERT_OWNINGTHREAD(CacheOpChild); + MOZ_DIAGNOSTIC_ASSERT(!mPromise); +} + +void +CacheOpChild::ActorDestroy(ActorDestroyReason aReason) +{ + NS_ASSERT_OWNINGTHREAD(CacheOpChild); + + // If the actor was terminated for some unknown reason, then indicate the + // operation is dead. + if (mPromise) { + mPromise->MaybeReject(NS_ERROR_FAILURE); + mPromise = nullptr; + } + + RemoveWorkerHolder(); +} + +bool +CacheOpChild::Recv__delete__(const ErrorResult& aRv, + const CacheOpResult& aResult) +{ + NS_ASSERT_OWNINGTHREAD(CacheOpChild); + + if (NS_WARN_IF(aRv.Failed())) { + MOZ_DIAGNOSTIC_ASSERT(aResult.type() == CacheOpResult::Tvoid_t); + // TODO: Remove this const_cast (bug 1152078). + // It is safe for now since this ErrorResult is handed off to us by IPDL + // and is thrown into the trash afterwards. + mPromise->MaybeReject(const_cast<ErrorResult&>(aRv)); + mPromise = nullptr; + return true; + } + + switch (aResult.type()) { + case CacheOpResult::TCacheMatchResult: + { + HandleResponse(aResult.get_CacheMatchResult().responseOrVoid()); + break; + } + case CacheOpResult::TCacheMatchAllResult: + { + HandleResponseList(aResult.get_CacheMatchAllResult().responseList()); + break; + } + case CacheOpResult::TCachePutAllResult: + { + mPromise->MaybeResolveWithUndefined(); + break; + } + case CacheOpResult::TCacheDeleteResult: + { + mPromise->MaybeResolve(aResult.get_CacheDeleteResult().success()); + break; + } + case CacheOpResult::TCacheKeysResult: + { + HandleRequestList(aResult.get_CacheKeysResult().requestList()); + break; + } + case CacheOpResult::TStorageMatchResult: + { + HandleResponse(aResult.get_StorageMatchResult().responseOrVoid()); + break; + } + case CacheOpResult::TStorageHasResult: + { + mPromise->MaybeResolve(aResult.get_StorageHasResult().success()); + break; + } + case CacheOpResult::TStorageOpenResult: + { + auto actor = static_cast<CacheChild*>( + aResult.get_StorageOpenResult().actorChild()); + + // If we have a success status then we should have an actor. Gracefully + // reject instead of crashing, though, if we get a nullptr here. + MOZ_DIAGNOSTIC_ASSERT(actor); + if (!actor) { + ErrorResult status; + status.ThrowTypeError<MSG_CACHE_OPEN_FAILED>(); + mPromise->MaybeReject(status); + break; + } + + actor->SetWorkerHolder(GetWorkerHolder()); + RefPtr<Cache> cache = new Cache(mGlobal, actor); + mPromise->MaybeResolve(cache); + break; + } + case CacheOpResult::TStorageDeleteResult: + { + mPromise->MaybeResolve(aResult.get_StorageDeleteResult().success()); + break; + } + case CacheOpResult::TStorageKeysResult: + { + mPromise->MaybeResolve(aResult.get_StorageKeysResult().keyList()); + break; + } + default: + MOZ_CRASH("Unknown Cache op result type!"); + } + + mPromise = nullptr; + + return true; +} + +void +CacheOpChild::StartDestroy() +{ + NS_ASSERT_OWNINGTHREAD(CacheOpChild); + + // Do not cancel on-going operations when WorkerHolder calls this. Instead, + // keep the Worker alive until we are done. +} + +nsIGlobalObject* +CacheOpChild::GetGlobalObject() const +{ + return mGlobal; +} + +#ifdef DEBUG +void +CacheOpChild::AssertOwningThread() const +{ + NS_ASSERT_OWNINGTHREAD(CacheOpChild); +} +#endif + +PBackgroundChild* +CacheOpChild::GetIPCManager() +{ + MOZ_CRASH("CacheOpChild does not implement TypeUtils::GetIPCManager()"); +} + +void +CacheOpChild::HandleResponse(const CacheResponseOrVoid& aResponseOrVoid) +{ + if (aResponseOrVoid.type() == CacheResponseOrVoid::Tvoid_t) { + mPromise->MaybeResolveWithUndefined(); + return; + } + + const CacheResponse& cacheResponse = aResponseOrVoid.get_CacheResponse(); + + AddWorkerHolderToStreamChild(cacheResponse, GetWorkerHolder()); + RefPtr<Response> response = ToResponse(cacheResponse); + + mPromise->MaybeResolve(response); +} + +void +CacheOpChild::HandleResponseList(const nsTArray<CacheResponse>& aResponseList) +{ + AutoTArray<RefPtr<Response>, 256> responses; + responses.SetCapacity(aResponseList.Length()); + + for (uint32_t i = 0; i < aResponseList.Length(); ++i) { + AddWorkerHolderToStreamChild(aResponseList[i], GetWorkerHolder()); + responses.AppendElement(ToResponse(aResponseList[i])); + } + + mPromise->MaybeResolve(responses); +} + +void +CacheOpChild::HandleRequestList(const nsTArray<CacheRequest>& aRequestList) +{ + AutoTArray<RefPtr<Request>, 256> requests; + requests.SetCapacity(aRequestList.Length()); + + for (uint32_t i = 0; i < aRequestList.Length(); ++i) { + AddWorkerHolderToStreamChild(aRequestList[i], GetWorkerHolder()); + requests.AppendElement(ToRequest(aRequestList[i])); + } + + mPromise->MaybeResolve(requests); +} + +} // namespace cache +} // namespace dom +} // namespace mozilla |