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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/ipc/ContentProcessManager.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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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/. */
+
+#ifndef mozilla_dom_ContentProcessManager_h
+#define mozilla_dom_ContentProcessManager_h
+
+#include <map>
+#include <set>
+#include "mozilla/StaticPtr.h"
+#include "mozilla/dom/TabContext.h"
+#include "mozilla/dom/ipc/IdType.h"
+#include "nsTArray.h"
+
+namespace mozilla {
+namespace dom {
+class ContentParent;
+
+struct RemoteFrameInfo
+{
+ TabId mOpenerTabId;
+ TabContext mContext;
+};
+
+struct ContentProcessInfo
+{
+ ContentParent* mCp;
+ ContentParentId mParentCpId;
+ std::set<ContentParentId> mChildrenCpId;
+ std::map<TabId, RemoteFrameInfo> mRemoteFrames;
+};
+
+class ContentProcessManager final
+{
+public:
+ static ContentProcessManager* GetSingleton();
+ ~ContentProcessManager() {MOZ_COUNT_DTOR(ContentProcessManager);};
+
+ /**
+ * Add a new content process into the map.
+ * If aParentCpId is not 0, it's a nested content process.
+ */
+ void AddContentProcess(ContentParent* aChildCp,
+ const ContentParentId& aParentCpId = ContentParentId(0));
+ /**
+ * Remove the content process by id.
+ */
+ void RemoveContentProcess(const ContentParentId& aChildCpId);
+ /**
+ * Add a grandchild content process into the map.
+ * aParentCpId must be already added in the map by AddContentProcess().
+ */
+ bool AddGrandchildProcess(const ContentParentId& aParentCpId,
+ const ContentParentId& aChildCpId);
+ /**
+ * Get the parent process's id by child process's id.
+ * Used to check if a child really belongs to the parent.
+ */
+ bool GetParentProcessId(const ContentParentId& aChildCpId,
+ /*out*/ ContentParentId* aParentCpId);
+ /**
+ * Return the ContentParent pointer by id.
+ */
+ ContentParent* GetContentProcessById(const ContentParentId& aChildCpId);
+
+ /**
+ * Return a list of all child process's id.
+ */
+ nsTArray<ContentParentId>
+ GetAllChildProcessById(const ContentParentId& aParentCpId);
+
+ /**
+ * Allocate a tab id for the given content process's id.
+ * Used when a content process wants to create a new tab. aOpenerTabId and
+ * aContext are saved in RemoteFrameInfo, which is a part of
+ * ContentProcessInfo. We can use the tab id and process id to locate the
+ * TabContext for future use.
+ */
+ TabId AllocateTabId(const TabId& aOpenerTabId,
+ const IPCTabContext& aContext,
+ const ContentParentId& aChildCpId);
+
+ /**
+ * Remove the RemoteFrameInfo by the given process and tab id.
+ */
+ void DeallocateTabId(const ContentParentId& aChildCpId,
+ const TabId& aChildTabId);
+
+ /**
+ * Get the TabContext by the given content process and tab id.
+ */
+ bool
+ GetTabContextByProcessAndTabId(const ContentParentId& aChildCpId,
+ const TabId& aChildTabId,
+ /*out*/ TabContext* aTabContext);
+
+ /**
+ * Get all TabContext which are inside the given content process.
+ * Used for AppProcessChecker to cehck app status.
+ */
+ nsTArray<TabContext>
+ GetTabContextByContentProcess(const ContentParentId& aChildCpId);
+
+ /**
+ * Query a tab's opener id by the given process and tab id.
+ * XXX Currently not used. Plan to be used for bug 1020179.
+ */
+ bool GetRemoteFrameOpenerTabId(const ContentParentId& aChildCpId,
+ const TabId& aChildTabId,
+ /*out*/ TabId* aOpenerTabId);
+
+ /**
+ * Get all TabParents' Ids managed by the givent content process.
+ * Return empty array when TabParent couldn't be found via aChildCpId
+ */
+ nsTArray<TabId>
+ GetTabParentsByProcessId(const ContentParentId& aChildCpId);
+
+ /**
+ * Get the TabParent by the given content process and tab id.
+ * Return nullptr when TabParent couldn't be found via aChildCpId
+ * and aChildTabId.
+ * (or probably because the TabParent is not in the chrome process)
+ */
+ already_AddRefed<TabParent>
+ GetTabParentByProcessAndTabId(const ContentParentId& aChildCpId,
+ const TabId& aChildTabId);
+
+ /**
+ * Get the TabParent on top level by the given content process and tab id.
+ *
+ * This function return the TabParent belong to the chrome process,
+ * called top-level TabParent here, by given aChildCpId and aChildTabId.
+ * The given aChildCpId and aChildTabId are related to a content process
+ * and a tab respectively. In nested-oop, the top-level TabParent isn't
+ * always the opener tab of the given tab in content process. This function
+ * will call GetTabParentByProcessAndTabId iteratively until the Tab returned
+ * is belong to the chrome process.
+ */
+ already_AddRefed<TabParent>
+ GetTopLevelTabParentByProcessAndTabId(const ContentParentId& aChildCpId,
+ const TabId& aChildTabId);
+
+ /**
+ * Return appId by given TabId and ContentParentId.
+ * It will return nsIScriptSecurityManager::NO_APP_ID
+ * if the given tab is not an app.
+ */
+ uint32_t
+ GetAppIdByProcessAndTabId(const ContentParentId& aChildCpId,
+ const TabId& aChildTabId);
+
+private:
+ static StaticAutoPtr<ContentProcessManager> sSingleton;
+ TabId mUniqueId;
+ std::map<ContentParentId, ContentProcessInfo> mContentParentMap;
+
+ ContentProcessManager() {MOZ_COUNT_CTOR(ContentProcessManager);};
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_ContentProcessManager_h