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// Copyright (c) 2013-2014 Sandstorm Development Group, Inc. and contributors
// Licensed under the MIT License:
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
// This file contains a bunch of internal declarations that must appear before rpc.h can start.
// We don't define these directly in rpc.h because it makes the file hard to read.
#ifndef CAPNP_RPC_PRELUDE_H_
#define CAPNP_RPC_PRELUDE_H_
#if defined(__GNUC__) && !CAPNP_HEADER_WARNINGS
#pragma GCC system_header
#endif
#include "capability.h"
#include "persistent.capnp.h"
namespace capnp {
class OutgoingRpcMessage;
class IncomingRpcMessage;
template <typename SturdyRefHostId>
class RpcSystem;
namespace _ { // private
class VatNetworkBase {
// Non-template version of VatNetwork. Ignore this class; see VatNetwork, below.
public:
class Connection;
struct ConnectionAndProvisionId {
kj::Own<Connection> connection;
kj::Own<OutgoingRpcMessage> firstMessage;
Orphan<AnyPointer> provisionId;
};
class Connection {
public:
virtual kj::Own<OutgoingRpcMessage> newOutgoingMessage(uint firstSegmentWordSize) = 0;
virtual kj::Promise<kj::Maybe<kj::Own<IncomingRpcMessage>>> receiveIncomingMessage() = 0;
virtual kj::Promise<void> shutdown() = 0;
};
virtual kj::Maybe<kj::Own<Connection>> baseConnect(_::StructReader vatId) = 0;
virtual kj::Promise<kj::Own<Connection>> baseAccept() = 0;
};
class SturdyRefRestorerBase {
public:
virtual Capability::Client baseRestore(AnyPointer::Reader ref) = 0;
};
class RpcSystemBase {
public:
RpcSystemBase(VatNetworkBase& network, kj::Maybe<Capability::Client> bootstrapInterface,
kj::Maybe<RealmGateway<>::Client> gateway);
RpcSystemBase(VatNetworkBase& network, SturdyRefRestorerBase& restorer);
RpcSystemBase(RpcSystemBase&& other) noexcept;
~RpcSystemBase() noexcept(false);
private:
class Impl;
kj::Own<Impl> impl;
Capability::Client baseBootstrap(_::StructReader vatId);
Capability::Client baseRestore(_::StructReader vatId, AnyPointer::Reader objectId);
// TODO(someday): Maybe define a public API called `TypelessStruct` so we don't have to rely
// on `_::StructReader` here?
template <typename>
friend class capnp::RpcSystem;
};
template <typename T> struct InternalRefFromRealmGateway_;
template <typename InternalRef, typename ExternalRef>
struct InternalRefFromRealmGateway_<RealmGateway<InternalRef, ExternalRef>> {
typedef InternalRef Type;
};
template <typename T>
using InternalRefFromRealmGateway = typename InternalRefFromRealmGateway_<T>::Type;
template <typename T>
using InternalRefFromRealmGatewayClient = InternalRefFromRealmGateway<typename T::Calls>;
template <typename T> struct ExternalRefFromRealmGateway_;
template <typename InternalRef, typename ExternalRef>
struct ExternalRefFromRealmGateway_<RealmGateway<InternalRef, ExternalRef>> {
typedef ExternalRef Type;
};
template <typename T>
using ExternalRefFromRealmGateway = typename ExternalRefFromRealmGateway_<T>::Type;
template <typename T>
using ExternalRefFromRealmGatewayClient = ExternalRefFromRealmGateway<typename T::Calls>;
} // namespace _ (private)
} // namespace capnp
#endif // CAPNP_RPC_PRELUDE_H_