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-rw-r--r--dom/cache/CacheOpChild.cpp268
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