forked from mirrors/gecko-dev
ad01a10a3b
Note that this patch only transforms the use of the nsDataHashtable type alias to a directly equivalent use of nsTHashMap. It does not change the specification of the hash key type to make use of the key class deduction that nsTHashMap allows for in some cases. That can be done in a separate step, but requires more attention. Differential Revision: https://phabricator.services.mozilla.com/D106008
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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_ContentProcessManager_h
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#define mozilla_dom_ContentProcessManager_h
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#include "mozilla/StaticPtr.h"
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#include "mozilla/dom/TabContext.h"
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#include "mozilla/dom/ipc/IdType.h"
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#include "nsTArray.h"
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#include "nsTHashMap.h"
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namespace mozilla {
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namespace dom {
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class ContentParent;
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class ContentProcessManager final {
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public:
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static ContentProcessManager* GetSingleton();
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MOZ_COUNTED_DTOR(ContentProcessManager);
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/**
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* Add a new content process into the map.
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*/
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void AddContentProcess(ContentParent* aChildCp);
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/**
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* Remove the content process by id.
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*/
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void RemoveContentProcess(const ContentParentId& aChildCpId);
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/**
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* Return the ContentParent pointer by id.
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*/
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ContentParent* GetContentProcessById(const ContentParentId& aChildCpId);
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/**
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* Add a new browser parent into the map.
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*/
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bool RegisterRemoteFrame(BrowserParent* aChildBp);
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/**
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* Remove the browser parent by the given tab id.
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*/
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void UnregisterRemoteFrame(const TabId& aChildTabId);
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/**
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* Get the ContentParentId of the parent of the given tab id.
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*/
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ContentParentId GetTabProcessId(const TabId& aChildTabId);
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/**
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* Get the number of BrowserParents managed by the givent content process.
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* Return 0 when ContentParent couldn't be found via aChildCpId.
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*/
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uint32_t GetBrowserParentCountByProcessId(const ContentParentId& aChildCpId);
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/**
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* Get the BrowserParent by the given content process and tab id.
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* Return nullptr when BrowserParent couldn't be found via aChildCpId
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* and aChildTabId.
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*/
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already_AddRefed<BrowserParent> GetBrowserParentByProcessAndTabId(
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const ContentParentId& aChildCpId, const TabId& aChildTabId);
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/**
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* Get the BrowserParent on top level by the given content process and tab id.
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*
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* This function returns the BrowserParent directly within a BrowserHost,
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* called top-level BrowserParent here, by given aChildCpId and aChildTabId.
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* The given aChildCpId and aChildTabId are related to a content process
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* and a tab respectively.
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*/
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already_AddRefed<BrowserParent> GetTopLevelBrowserParentByProcessAndTabId(
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const ContentParentId& aChildCpId, const TabId& aChildTabId);
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private:
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static StaticAutoPtr<ContentProcessManager> sSingleton;
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nsTHashMap<nsUint64HashKey, ContentParent*> mContentParentMap;
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nsTHashMap<nsUint64HashKey, BrowserParent*> mBrowserParentMap;
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MOZ_COUNTED_DEFAULT_CTOR(ContentProcessManager);
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_ContentProcessManager_h
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