forked from mirrors/gecko-dev
92 lines
2.8 KiB
C++
92 lines
2.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/ScriptPreloader.h"
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#include "ScriptPreloader-inl.h"
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#include "mozilla/loader/ScriptCacheActors.h"
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#include "mozilla/dom/ContentParent.h"
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namespace mozilla {
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namespace loader {
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void ScriptCacheChild::Init(const Maybe<FileDescriptor>& cacheFile,
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bool wantCacheData) {
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mWantCacheData = wantCacheData;
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auto& cache = ScriptPreloader::GetChildSingleton();
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Unused << cache.InitCache(cacheFile, this);
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if (!wantCacheData) {
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// If the parent process isn't expecting any cache data from us, we're
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// done.
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Send__delete__(this, AutoTArray<ScriptData, 0>());
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}
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}
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// Finalize the script cache for the content process, and send back data about
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// any scripts executed up to this point.
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void ScriptCacheChild::SendScriptsAndFinalize(
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ScriptPreloader::ScriptHash& scripts) {
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MOZ_ASSERT(mWantCacheData);
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AutoSafeJSAPI jsapi;
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auto matcher = ScriptPreloader::Match<ScriptPreloader::ScriptStatus::Saved>();
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nsTArray<ScriptData> dataArray;
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for (auto& script : IterHash(scripts, matcher)) {
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if (!script->mSize && !script->XDREncode(jsapi.cx())) {
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continue;
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}
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auto data = dataArray.AppendElement();
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data->url() = script->mURL;
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data->cachePath() = script->mCachePath;
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data->loadTime() = script->mLoadTime;
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if (script->HasBuffer()) {
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auto& xdrData = script->Buffer();
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data->xdrData().AppendElements(xdrData.begin(), xdrData.length());
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script->FreeData();
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}
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}
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Send__delete__(this, dataArray);
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}
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void ScriptCacheChild::ActorDestroy(ActorDestroyReason aWhy) {
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auto& cache = ScriptPreloader::GetChildSingleton();
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cache.mChildActor = nullptr;
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}
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IPCResult ScriptCacheParent::Recv__delete__(nsTArray<ScriptData>&& scripts) {
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if (!mWantCacheData && scripts.Length()) {
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return IPC_FAIL(this, "UnexpectedScriptData");
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}
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// We don't want any more data from the process at this point.
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mWantCacheData = false;
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// Merge the child's script data with the parent's.
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auto parent = static_cast<dom::ContentParent*>(Manager());
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auto processType =
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ScriptPreloader::GetChildProcessType(parent->GetRemoteType());
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auto& cache = ScriptPreloader::GetChildSingleton();
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for (auto& script : scripts) {
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cache.NoteScript(script.url(), script.cachePath(), processType,
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std::move(script.xdrData()), script.loadTime());
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}
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return IPC_OK();
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}
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void ScriptCacheParent::ActorDestroy(ActorDestroyReason aWhy) {}
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} // namespace loader
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} // namespace mozilla
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