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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_ExtensionKitUtils_h
#define mozilla_ipc_ExtensionKitUtils_h
#include <functional>
#include <xpc/xpc.h>
#include "mozilla/DarwinObjectPtr.h"
#include "mozilla/Result.h"
#include "mozilla/ResultVariant.h"
#include "mozilla/UniquePtr.h"
#include "mozilla/ipc/LaunchError.h"
namespace mozilla::ipc {
class BEProcessCapabilityGrantDeleter {
public:
void operator()(void* aGrant) const;
};
using UniqueBEProcessCapabilityGrant =
mozilla::UniquePtr<void, BEProcessCapabilityGrantDeleter>;
class ExtensionKitProcess {
public:
enum class Kind {
WebContent,
Networking,
Rendering,
};
// Called to start the process. The `aCompletion` function may be executed on
// a background libdispatch thread.
static void StartProcess(
Kind aKind,
const std::function<void(Result<ExtensionKitProcess, LaunchError>&&)>&
aCompletion);
// Get the kind of process being started.
Kind GetKind() const { return mKind; }
// Make an xpc_connection_t to this process. If an error is encountered,
// `aError` will be populated with the error.
//
// Ownership over the newly created connection is returned to the caller.
// The connection is returned in a suspended state, and must be resumed.
DarwinObjectPtr<xpc_connection_t> MakeLibXPCConnection();
UniqueBEProcessCapabilityGrant GrantForegroundCapability();
// Invalidate the process, indicating that it should be cleaned up &
// destroyed.
void Invalidate();
// Explicit copy constructors
ExtensionKitProcess(const ExtensionKitProcess&);
ExtensionKitProcess& operator=(const ExtensionKitProcess&);
// Release the object when completed.
~ExtensionKitProcess();
private:
ExtensionKitProcess(Kind aKind, void* aProcessObject)
: mKind(aKind), mProcessObject(aProcessObject) {}
// Type tag for `mProcessObject`.
Kind mKind;
// This is one of `BEWebContentProcess`, `BENetworkingProcess` or
// `BERenderingProcess`. It has been type erased to be usable from C++ code.
void* mProcessObject;
};
} // namespace mozilla::ipc
#endif // mozilla_ipc_ExtensionKitUtils_h
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