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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/fnet/frt/frt.h>
#include <vespa/fastos/app.h>
#include <vespa/log/log.h>
LOG_SETUP("rpc_server");
class RPCServer : public FRT_Invokable
{
private:
FRT_Supervisor *_supervisor;
RPCServer(const RPCServer &);
RPCServer &operator=(const RPCServer &);
public:
RPCServer() : _supervisor(nullptr) {}
void InitRPC(FRT_Supervisor *s);
void RPC_concat(FRT_RPCRequest *req);
void RPC_addFloat(FRT_RPCRequest *req);
void RPC_addDouble(FRT_RPCRequest *req);
int Main(int argc, char **argv);
};
void
RPCServer::InitRPC(FRT_Supervisor *s)
{
FRT_ReflectionBuilder rb(s);
//-------------------------------------------------------------------
rb.DefineMethod("concat", "ss", "s", true,
FRT_METHOD(RPCServer::RPC_concat), this);
rb.MethodDesc("Concatenate two strings");
rb.ParamDesc("string1", "a string");
rb.ParamDesc("string2", "another string");
rb.ReturnDesc("ret", "the concatenation of string1 and string2");
//-------------------------------------------------------------------
rb.DefineMethod("addFloat", "ff", "f", true,
FRT_METHOD(RPCServer::RPC_addFloat), this);
rb.MethodDesc("Add two floats");
rb.ParamDesc("float1", "a float");
rb.ParamDesc("float2", "another float");
rb.ReturnDesc("ret", "float1 + float2");
//-------------------------------------------------------------------
rb.DefineMethod("addDouble", "dd", "d", true,
FRT_METHOD(RPCServer::RPC_addDouble), this);
rb.MethodDesc("Add two doubles");
rb.ParamDesc("double1", "a double");
rb.ParamDesc("double2", "another double");
rb.ReturnDesc("ret", "double1 + double2");
//-------------------------------------------------------------------
}
void
RPCServer::RPC_concat(FRT_RPCRequest *req)
{
FRT_Values ¶ms = *req->GetParams();
FRT_Values &ret = *req->GetReturn();
uint32_t len = (params[0]._string._len +
params[1]._string._len);
char *tmp = ret.AddString(len);
strcpy(tmp, params[0]._string._str);
strcat(tmp, params[1]._string._str);
}
void
RPCServer::RPC_addFloat(FRT_RPCRequest *req)
{
FRT_Values ¶ms = *req->GetParams();
FRT_Values &ret = *req->GetReturn();
ret.AddFloat(params[0]._float + params[1]._float);
}
void
RPCServer::RPC_addDouble(FRT_RPCRequest *req)
{
FRT_Values ¶ms = *req->GetParams();
FRT_Values &ret = *req->GetReturn();
ret.AddDouble(params[0]._double + params[1]._double);
}
int
RPCServer::Main(int argc, char **argv)
{
FNET_SignalShutDown::hookSignals();
if (argc < 2) {
printf("usage : rpc_server <listenspec>\n");
return 1;
}
_supervisor = new FRT_Supervisor();
InitRPC(_supervisor);
_supervisor->Listen(argv[1]);
FNET_SignalShutDown ssd(*_supervisor->GetTransport());
_supervisor->Main();
delete _supervisor;
return 0;
}
class App : public FastOS_Application
{
private:
RPCServer _server;
public:
App() : _server() {}
int Main() override;
};
int
App::Main()
{
return _server.Main(_argc, _argv);
}
int
main(int argc, char **argv)
{
App myapp;
return myapp.Entry(argc, argv);
}
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