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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
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
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