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-rw-r--r--dom/cache/CacheOpChild.cpp236
1 files changed, 236 insertions, 0 deletions
diff --git a/dom/cache/CacheOpChild.cpp b/dom/cache/CacheOpChild.cpp
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--- /dev/null
+++ b/dom/cache/CacheOpChild.cpp
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+/* -*- 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"
+#include "mozilla/dom/cache/CacheWorkerRef.h"
+
+namespace mozilla::dom {
+// XXX Move this to ToJSValue.h
+template <typename T>
+[[nodiscard]] bool ToJSValue(JSContext* aCx, const SafeRefPtr<T>& aArgument,
+ JS::MutableHandle<JS::Value> aValue) {
+ return ToJSValue(aCx, *aArgument.unsafeGetRawPtr(), aValue);
+}
+
+namespace cache {
+
+using mozilla::ipc::PBackgroundChild;
+
+namespace {
+
+void AddWorkerRefToStreamChild(const CacheReadStream& aReadStream,
+ const SafeRefPtr<CacheWorkerRef>& aWorkerRef) {
+ MOZ_ASSERT_IF(!NS_IsMainThread(), aWorkerRef);
+ CacheStreamControlChild* cacheControl =
+ static_cast<CacheStreamControlChild*>(aReadStream.control().AsChild());
+ if (cacheControl) {
+ cacheControl->SetWorkerRef(aWorkerRef.clonePtr());
+ }
+}
+
+void AddWorkerRefToStreamChild(const CacheResponse& aResponse,
+ const SafeRefPtr<CacheWorkerRef>& aWorkerRef) {
+ MOZ_ASSERT_IF(!NS_IsMainThread(), aWorkerRef);
+
+ if (aResponse.body().isNothing()) {
+ return;
+ }
+
+ AddWorkerRefToStreamChild(aResponse.body().ref(), aWorkerRef);
+}
+
+void AddWorkerRefToStreamChild(const CacheRequest& aRequest,
+ const SafeRefPtr<CacheWorkerRef>& aWorkerRef) {
+ MOZ_ASSERT_IF(!NS_IsMainThread(), aWorkerRef);
+
+ if (aRequest.body().isNothing()) {
+ return;
+ }
+
+ AddWorkerRefToStreamChild(aRequest.body().ref(), aWorkerRef);
+}
+
+} // namespace
+
+CacheOpChild::CacheOpChild(SafeRefPtr<CacheWorkerRef> aWorkerRef,
+ nsIGlobalObject* aGlobal, nsISupports* aParent,
+ Promise* aPromise, ActorChild* aParentActor)
+ : mGlobal(aGlobal),
+ mParent(aParent),
+ mPromise(aPromise),
+ mParentActor(aParentActor) {
+ MOZ_DIAGNOSTIC_ASSERT(mGlobal);
+ MOZ_DIAGNOSTIC_ASSERT(mParent);
+ MOZ_DIAGNOSTIC_ASSERT(mPromise);
+
+ MOZ_ASSERT_IF(!NS_IsMainThread(), aWorkerRef);
+
+ SetWorkerRef(CacheWorkerRef::PreferBehavior(
+ std::move(aWorkerRef), CacheWorkerRef::eStrongWorkerRef));
+}
+
+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;
+ }
+ mParentActor->NoteDeletedActor();
+ RemoveWorkerRef();
+}
+
+mozilla::ipc::IPCResult CacheOpChild::Recv__delete__(
+ ErrorResult&& aRv, const CacheOpResult& aResult) {
+ NS_ASSERT_OWNINGTHREAD(CacheOpChild);
+
+ if (NS_WARN_IF(aRv.Failed())) {
+ MOZ_DIAGNOSTIC_ASSERT(aResult.type() == CacheOpResult::Tvoid_t);
+ mPromise->MaybeReject(std::move(aRv));
+ mPromise = nullptr;
+ return IPC_OK();
+ }
+
+ switch (aResult.type()) {
+ case CacheOpResult::TCacheMatchResult: {
+ HandleResponse(aResult.get_CacheMatchResult().maybeResponse());
+ 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().maybeResponse());
+ break;
+ }
+ case CacheOpResult::TStorageHasResult: {
+ mPromise->MaybeResolve(aResult.get_StorageHasResult().success());
+ break;
+ }
+ case CacheOpResult::TStorageOpenResult: {
+ auto result = aResult.get_StorageOpenResult();
+ auto actor = static_cast<CacheChild*>(result.actor().AsChild());
+
+ // 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) {
+ mPromise->MaybeRejectWithTypeError(
+ "CacheStorage.open() failed to access the storage system.");
+ break;
+ }
+
+ actor->SetWorkerRef(CacheWorkerRef::PreferBehavior(
+ GetWorkerRefPtr().clonePtr(), CacheWorkerRef::eIPCWorkerRef));
+ RefPtr<Cache> cache = new Cache(mGlobal, actor, result.ns());
+ 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 IPC_OK();
+}
+
+void CacheOpChild::StartDestroy() {
+ NS_ASSERT_OWNINGTHREAD(CacheOpChild);
+
+ // Do not cancel on-going operations when WorkerRef 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 Maybe<CacheResponse>& aMaybeResponse) {
+ if (aMaybeResponse.isNothing()) {
+ mPromise->MaybeResolveWithUndefined();
+ return;
+ }
+
+ const CacheResponse& cacheResponse = aMaybeResponse.ref();
+
+ AddWorkerRefToStreamChild(cacheResponse, GetWorkerRefPtr());
+ 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) {
+ AddWorkerRefToStreamChild(aResponseList[i], GetWorkerRefPtr());
+ responses.AppendElement(ToResponse(aResponseList[i]));
+ }
+
+ mPromise->MaybeResolve(responses);
+}
+
+void CacheOpChild::HandleRequestList(
+ const nsTArray<CacheRequest>& aRequestList) {
+ AutoTArray<SafeRefPtr<Request>, 256> requests;
+ requests.SetCapacity(aRequestList.Length());
+
+ for (uint32_t i = 0; i < aRequestList.Length(); ++i) {
+ AddWorkerRefToStreamChild(aRequestList[i], GetWorkerRefPtr());
+ requests.AppendElement(ToRequest(aRequestList[i]));
+ }
+
+ mPromise->MaybeResolve(requests);
+}
+
+} // namespace cache
+} // namespace mozilla::dom