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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_ipc_ProcessUtils_h
#define mozilla_ipc_ProcessUtils_h
#include <functional>
#include "mozilla/GeckoArgs.h"
#include "mozilla/ipc/FileDescriptor.h"
#include "mozilla/ipc/SharedMemoryHandle.h"
#include "mozilla/ipc/SharedMemoryMapping.h"
#include "mozilla/Preferences.h"
#include "nsXULAppAPI.h"
namespace mozilla {
namespace ipc {
class GeckoChildProcessHost;
// You probably should call ContentChild::SetProcessName instead of calling
// this directly.
void SetThisProcessName(const char* aName);
class SharedPreferenceSerializer final {
public:
explicit SharedPreferenceSerializer();
SharedPreferenceSerializer(SharedPreferenceSerializer&& aOther);
~SharedPreferenceSerializer();
bool SerializeToSharedMemory(const GeckoProcessType aDestinationProcessType,
const nsACString& aDestinationRemoteType);
const ReadOnlySharedMemoryHandle& GetPrefsHandle() const {
return mPrefsHandle;
}
const ReadOnlySharedMemoryHandle& GetPrefMapHandle() const {
return mPrefMapHandle;
}
void AddSharedPrefCmdLineArgs(GeckoChildProcessHost& procHost,
geckoargs::ChildProcessArgs& aExtraOpts) const;
private:
DISALLOW_COPY_AND_ASSIGN(SharedPreferenceSerializer);
ReadOnlySharedMemoryHandle mPrefMapHandle;
ReadOnlySharedMemoryHandle mPrefsHandle;
};
class SharedPreferenceDeserializer final {
public:
SharedPreferenceDeserializer();
~SharedPreferenceDeserializer();
bool DeserializeFromSharedMemory(ReadOnlySharedMemoryHandle&& aPrefsHandle,
ReadOnlySharedMemoryHandle&& aPrefMapHandle);
private:
DISALLOW_COPY_AND_ASSIGN(SharedPreferenceDeserializer);
ReadOnlySharedMemoryHandle mPrefMapHandle;
ReadOnlySharedMemoryMapping mShmem;
};
// Generate command line argument to spawn a child process. If the shared memory
// is not properly initialized, this would be a no-op.
void ExportSharedJSInit(GeckoChildProcessHost& procHost,
geckoargs::ChildProcessArgs& aExtraOpts);
// Initialize the content used by the JS engine during the initialization of a
// JS::Runtime.
bool ImportSharedJSInit(ReadOnlySharedMemoryHandle&& aJsInitHandle);
} // namespace ipc
} // namespace mozilla
#endif // ifndef mozilla_ipc_ProcessUtils_h
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