Chris@63: // Copyright (c) 2013-2014 Sandstorm Development Group, Inc. and contributors
Chris@63: // Licensed under the MIT License:
Chris@63: //
Chris@63: // Permission is hereby granted, free of charge, to any person obtaining a copy
Chris@63: // of this software and associated documentation files (the "Software"), to deal
Chris@63: // in the Software without restriction, including without limitation the rights
Chris@63: // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
Chris@63: // copies of the Software, and to permit persons to whom the Software is
Chris@63: // furnished to do so, subject to the following conditions:
Chris@63: //
Chris@63: // The above copyright notice and this permission notice shall be included in
Chris@63: // all copies or substantial portions of the Software.
Chris@63: //
Chris@63: // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
Chris@63: // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
Chris@63: // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
Chris@63: // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
Chris@63: // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
Chris@63: // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
Chris@63: // THE SOFTWARE.
Chris@63: 
Chris@63: // This file contains a bunch of internal declarations that must appear before rpc.h can start.
Chris@63: // We don't define these directly in rpc.h because it makes the file hard to read.
Chris@63: 
Chris@63: #ifndef CAPNP_RPC_PRELUDE_H_
Chris@63: #define CAPNP_RPC_PRELUDE_H_
Chris@63: 
Chris@63: #if defined(__GNUC__) && !defined(CAPNP_HEADER_WARNINGS)
Chris@63: #pragma GCC system_header
Chris@63: #endif
Chris@63: 
Chris@63: #include "capability.h"
Chris@63: #include "persistent.capnp.h"
Chris@63: 
Chris@63: namespace capnp {
Chris@63: 
Chris@63: class OutgoingRpcMessage;
Chris@63: class IncomingRpcMessage;
Chris@63: 
Chris@63: template <typename SturdyRefHostId>
Chris@63: class RpcSystem;
Chris@63: 
Chris@63: namespace _ {  // private
Chris@63: 
Chris@63: class VatNetworkBase {
Chris@63:   // Non-template version of VatNetwork.  Ignore this class; see VatNetwork in rpc.h.
Chris@63: 
Chris@63: public:
Chris@63:   class Connection;
Chris@63: 
Chris@63:   struct ConnectionAndProvisionId {
Chris@63:     kj::Own<Connection> connection;
Chris@63:     kj::Own<OutgoingRpcMessage> firstMessage;
Chris@63:     Orphan<AnyPointer> provisionId;
Chris@63:   };
Chris@63: 
Chris@63:   class Connection {
Chris@63:   public:
Chris@63:     virtual kj::Own<OutgoingRpcMessage> newOutgoingMessage(uint firstSegmentWordSize) = 0;
Chris@63:     virtual kj::Promise<kj::Maybe<kj::Own<IncomingRpcMessage>>> receiveIncomingMessage() = 0;
Chris@63:     virtual kj::Promise<void> shutdown() = 0;
Chris@63:     virtual AnyStruct::Reader baseGetPeerVatId() = 0;
Chris@63:   };
Chris@63:   virtual kj::Maybe<kj::Own<Connection>> baseConnect(AnyStruct::Reader vatId) = 0;
Chris@63:   virtual kj::Promise<kj::Own<Connection>> baseAccept() = 0;
Chris@63: };
Chris@63: 
Chris@63: class SturdyRefRestorerBase {
Chris@63: public:
Chris@63:   virtual Capability::Client baseRestore(AnyPointer::Reader ref) = 0;
Chris@63: };
Chris@63: 
Chris@63: class BootstrapFactoryBase {
Chris@63:   // Non-template version of BootstrapFactory.  Ignore this class; see BootstrapFactory in rpc.h.
Chris@63: public:
Chris@63:   virtual Capability::Client baseCreateFor(AnyStruct::Reader clientId) = 0;
Chris@63: };
Chris@63: 
Chris@63: class RpcSystemBase {
Chris@63:   // Non-template version of RpcSystem.  Ignore this class; see RpcSystem in rpc.h.
Chris@63: 
Chris@63: public:
Chris@63:   RpcSystemBase(VatNetworkBase& network, kj::Maybe<Capability::Client> bootstrapInterface,
Chris@63:                 kj::Maybe<RealmGateway<>::Client> gateway);
Chris@63:   RpcSystemBase(VatNetworkBase& network, BootstrapFactoryBase& bootstrapFactory,
Chris@63:                 kj::Maybe<RealmGateway<>::Client> gateway);
Chris@63:   RpcSystemBase(VatNetworkBase& network, SturdyRefRestorerBase& restorer);
Chris@63:   RpcSystemBase(RpcSystemBase&& other) noexcept;
Chris@63:   ~RpcSystemBase() noexcept(false);
Chris@63: 
Chris@63: private:
Chris@63:   class Impl;
Chris@63:   kj::Own<Impl> impl;
Chris@63: 
Chris@63:   Capability::Client baseBootstrap(AnyStruct::Reader vatId);
Chris@63:   Capability::Client baseRestore(AnyStruct::Reader vatId, AnyPointer::Reader objectId);
Chris@63:   void baseSetFlowLimit(size_t words);
Chris@63: 
Chris@63:   template <typename>
Chris@63:   friend class capnp::RpcSystem;
Chris@63: };
Chris@63: 
Chris@63: template <typename T> struct InternalRefFromRealmGateway_;
Chris@63: template <typename InternalRef, typename ExternalRef, typename InternalOwner,
Chris@63:           typename ExternalOwner>
Chris@63: struct InternalRefFromRealmGateway_<RealmGateway<InternalRef, ExternalRef, InternalOwner,
Chris@63:                                     ExternalOwner>> {
Chris@63:   typedef InternalRef Type;
Chris@63: };
Chris@63: template <typename T>
Chris@63: using InternalRefFromRealmGateway = typename InternalRefFromRealmGateway_<T>::Type;
Chris@63: template <typename T>
Chris@63: using InternalRefFromRealmGatewayClient = InternalRefFromRealmGateway<typename T::Calls>;
Chris@63: 
Chris@63: template <typename T> struct ExternalRefFromRealmGateway_;
Chris@63: template <typename InternalRef, typename ExternalRef, typename InternalOwner,
Chris@63:           typename ExternalOwner>
Chris@63: struct ExternalRefFromRealmGateway_<RealmGateway<InternalRef, ExternalRef, InternalOwner,
Chris@63:                                     ExternalOwner>> {
Chris@63:   typedef ExternalRef Type;
Chris@63: };
Chris@63: template <typename T>
Chris@63: using ExternalRefFromRealmGateway = typename ExternalRefFromRealmGateway_<T>::Type;
Chris@63: template <typename T>
Chris@63: using ExternalRefFromRealmGatewayClient = ExternalRefFromRealmGateway<typename T::Calls>;
Chris@63: 
Chris@63: }  // namespace _ (private)
Chris@63: }  // namespace capnp
Chris@63: 
Chris@63: #endif  // CAPNP_RPC_PRELUDE_H_