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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/fnet/packet.h>
#include <vespa/fnet/ipacketfactory.h>
#include <vespa/vespalib/util/traits.h>
class FRT_RPCRequest;
enum {
PCODE_FRT_RPC_FIRST = 100,
PCODE_FRT_RPC_REQUEST = 100,
PCODE_FRT_RPC_REPLY = 101,
PCODE_FRT_RPC_ERROR = 102,
PCODE_FRT_RPC_LAST = 199
};
enum {
FLAG_FRT_RPC_LITTLE_ENDIAN = 0x0001,
FLAG_FRT_RPC_NOREPLY = 0x0002,
FLAG_FRT_RPC_SUPPORTED_MASK = 0x0003
};
class FRT_RPCPacket : public FNET_Packet
{
protected:
FRT_RPCRequest *_req;
uint32_t _flags;
bool _ownsRef;
FRT_RPCPacket(const FRT_RPCPacket &);
FRT_RPCPacket &operator=(const FRT_RPCPacket &);
public:
FRT_RPCPacket(FRT_RPCRequest *req, uint32_t flags, bool ownsRef)
: _req(req),
_flags(flags),
_ownsRef(ownsRef)
{}
bool LittleEndian() { return (_flags & FLAG_FRT_RPC_LITTLE_ENDIAN) != 0; }
bool NoReply() { return (_flags & FLAG_FRT_RPC_NOREPLY) != 0; }
~FRT_RPCPacket();
void Free() override;
};
class FRT_RPCRequestPacket : public FRT_RPCPacket
{
public:
FRT_RPCRequestPacket(FRT_RPCRequest *req,
uint32_t flags,
bool ownsRef)
: FRT_RPCPacket(req, flags, ownsRef) {}
uint32_t GetPCODE() override;
uint32_t GetLength() override;
void Encode(FNET_DataBuffer *dst) override;
bool Decode(FNET_DataBuffer *src, uint32_t len) override;
vespalib::string Print(uint32_t indent = 0) override;
};
class FRT_RPCReplyPacket : public FRT_RPCPacket
{
public:
FRT_RPCReplyPacket(FRT_RPCRequest *req,
uint32_t flags,
bool ownsRef)
: FRT_RPCPacket(req, flags, ownsRef) {}
uint32_t GetPCODE() override;
uint32_t GetLength() override;
void Encode(FNET_DataBuffer *dst) override;
bool Decode(FNET_DataBuffer *src, uint32_t len) override;
vespalib::string Print(uint32_t indent = 0) override;
};
class FRT_RPCErrorPacket : public FRT_RPCPacket
{
public:
FRT_RPCErrorPacket(FRT_RPCRequest *req,
uint32_t flags,
bool ownsRef)
: FRT_RPCPacket(req, flags, ownsRef) {}
uint32_t GetPCODE() override;
uint32_t GetLength() override;
void Encode(FNET_DataBuffer *dst) override;
bool Decode(FNET_DataBuffer *src, uint32_t len) override;
vespalib::string Print(uint32_t indent = 0) override;
};
class FRT_PacketFactory : public FNET_IPacketFactory
{
public:
FNET_Packet *CreatePacket(uint32_t pcode, FNET_Context context) override;
};
VESPA_CAN_SKIP_DESTRUCTION(FRT_RPCRequestPacket)
VESPA_CAN_SKIP_DESTRUCTION(FRT_RPCReplyPacket)
VESPA_CAN_SKIP_DESTRUCTION(FRT_RPCErrorPacket)
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