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ac99c1dda6
Cmd-line params for the SharedPreferenceSerializer was duplicated in ContentParent and SocketProcessHost. Since we'll have a 3rd process (RDD) using this same code, let's move the repsonsiblity for knowing how to add these cmdline params into SharedPreferenceSerializer. Depends on D26567 Differential Revision: https://phabricator.services.mozilla.com/D26568 --HG-- extra : moz-landing-system : lando
85 lines
2.4 KiB
C++
85 lines
2.4 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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#ifndef mozilla_ipc_ProcessUtils_h
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#define mozilla_ipc_ProcessUtils_h
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#include "FileDescriptor.h"
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#include "base/shared_memory.h"
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namespace mozilla {
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namespace ipc {
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class GeckoChildProcessHost;
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// You probably should call ContentChild::SetProcessName instead of calling
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// this directly.
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void SetThisProcessName(const char* aName);
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class SharedPreferenceSerializer final {
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public:
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SharedPreferenceSerializer();
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SharedPreferenceSerializer(SharedPreferenceSerializer&& aOther);
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~SharedPreferenceSerializer();
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bool SerializeToSharedMemory();
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base::SharedMemoryHandle GetSharedMemoryHandle() const {
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return mShm.handle();
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}
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const FileDescriptor::UniquePlatformHandle& GetPrefMapHandle() const {
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return mPrefMapHandle;
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}
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nsACString::size_type GetPrefLength() const { return mPrefs.Length(); }
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size_t GetPrefMapSize() const { return mPrefMapSize; }
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void AddSharedPrefCmdLineArgs(GeckoChildProcessHost& procHost,
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std::vector<std::string>& aExtraOpts) const;
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private:
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DISALLOW_COPY_AND_ASSIGN(SharedPreferenceSerializer);
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size_t mPrefMapSize;
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FileDescriptor::UniquePlatformHandle mPrefMapHandle;
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base::SharedMemory mShm;
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nsAutoCStringN<1024> mPrefs;
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};
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class SharedPreferenceDeserializer final {
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public:
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SharedPreferenceDeserializer();
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~SharedPreferenceDeserializer();
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bool DeserializeFromSharedMemory(char* aPrefsHandleStr,
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char* aPrefMapHandleStr, char* aPrefsLenStr,
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char* aPrefMapSizeStr);
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const base::SharedMemoryHandle& GetPrefsHandle() const;
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const FileDescriptor& GetPrefMapHandle() const;
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private:
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DISALLOW_COPY_AND_ASSIGN(SharedPreferenceDeserializer);
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Maybe<base::SharedMemoryHandle> mPrefsHandle;
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Maybe<FileDescriptor> mPrefMapHandle;
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Maybe<size_t> mPrefsLen;
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Maybe<size_t> mPrefMapSize;
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base::SharedMemory mShmem;
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};
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#ifdef ANDROID
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// Android doesn't use -prefsHandle or -prefMapHandle. It gets those FDs
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// another way.
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void SetPrefsFd(int aFd);
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void SetPrefMapFd(int aFd);
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#endif
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} // namespace ipc
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} // namespace mozilla
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#endif // ifndef mozilla_ipc_ProcessUtils_h
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