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#include <pv/epicsException.h>
#include <pv/valueBuilder.h>
#include <pv/clientFactory.h>
#include <pv/rpcClient.h>
#include <pv/rpcServer.h>
#include <pv/rpcService.h>
#include <epicsUnitTest.h>
#include <testMain.h>
namespace pvd = epics::pvData;
namespace pva = epics::pvAccess;
namespace {
pvd::StructureConstPtr reply_type(pvd::getFieldCreate()->createFieldBuilder()
->add("value", pvd::pvDouble)
->createStructure());
struct SumService : public pva::RPCService
{
virtual epics::pvData::PVStructure::shared_pointer request(
epics::pvData::PVStructure::shared_pointer const & args
) OVERRIDE FINAL
{
testDiag("request()");
pvd::PVScalarPtr lhs(args->getSubField<pvd::PVScalar>("query.lhs")),
rhs(args->getSubField<pvd::PVScalar>("query.rhs"));
if(!lhs || !rhs)
throw pva::RPCRequestException("Missing query.lhs and/or query.rhs");
double a = lhs->getAs<double>(),
b = rhs->getAs<double>();
testDiag("Add %f + %f", a, b);
pvd::PVStructure::shared_pointer reply(pvd::getPVDataCreate()->createPVStructure(reply_type));
reply->getSubFieldT<pvd::PVDouble>("value")->put(a+b);
return reply;
}
};
void testSum(const pva::ChannelProvider::shared_pointer& cli_prov)
{
pva::RPCClient client("sum", pvd::createRequest("field()"), cli_prov);
pvd::ValueBuilder args("epics:nt/NTURI:1.0");
args.add<pvd::pvString>("scheme", "pva")
.add<pvd::pvString>("path", "sum");
pvd::PVStructurePtr reply;
testDiag("Request");
reply = client.request(args.addNested("query")
.add<pvd::pvDouble>("lhs", 5.0)
.add<pvd::pvDouble>("rhs", 3.0)
.endNested()
.buildPVStructure());
pvd::int32 value = reply->getSubFieldT<pvd::PVScalar>("value")->getAs<pvd::int32>();
testOk(value==8, "Reply value = %d", (unsigned)value);
testDiag("Wait for connect (already connected)");
testOk1(client.waitConnect());
}
struct FailService : public pva::RPCService
{
virtual epics::pvData::PVStructure::shared_pointer request(
epics::pvData::PVStructure::shared_pointer const & args
) OVERRIDE FINAL
{
testDiag("failing()");
throw std::runtime_error("oops");
}
};
void testRPCFail(const pva::ChannelProvider::shared_pointer& cli_prov)
{
testDiag("Fail");
pva::RPCClient client("fail", pvd::createRequest("field()"), cli_prov);
pvd::ValueBuilder args("epics:nt/NTURI:1.0");
args.add<pvd::pvString>("scheme", "pva")
.add<pvd::pvString>("path", "fail");
testDiag("Request");
try{
(void)client.request(args.addNested("query")
.add<pvd::pvDouble>("lhs", 5.0)
.add<pvd::pvDouble>("rhs", 3.0)
.endNested()
.buildPVStructure());
testFail("Missing expected exception");
}catch(pva::RPCRequestException& e){
testPass("caught expected rpc exception: %s", e.what());
}catch(std::exception& e){
testFail("caught un-expected exception: %s", e.what());
}
}
} // namespace
MAIN(testRPC)
{
testPlan(3);
try {
pva::Configuration::shared_pointer conf(pva::ConfigurationBuilder()
//.push_env()
//.add("EPICS_PVA_DEBUG", "3")
.add("EPICS_PVAS_INTF_ADDR_LIST", "127.0.0.1")
.add("EPICS_PVA_ADDR_LIST", "127.0.0.1")
.add("EPICS_PVA_AUTO_ADDR_LIST","0")
.add("EPICS_PVA_SERVER_PORT", "0")
.add("EPICS_PVA_BROADCAST_PORT", "0")
.push_map()
.build());
testDiag("Server Setup");
pva::RPCServer serv(conf);
testDiag("TestServer on ports TCP=%u UDP=%u",
serv.getServer()->getServerPort(),
serv.getServer()->getBroadcastPort());
{
std::tr1::shared_ptr<pva::RPCService> service(new SumService);
serv.registerService("sum", service);
}
{
std::tr1::shared_ptr<pva::RPCService> service(new FailService);
serv.registerService("fail", service);
}
testDiag("Client Setup");
pva::ClientFactory::start();
pva::ChannelProvider::shared_pointer cli_prov(pva::ChannelProviderRegistry::clients()->createProvider("pva",
serv.getServer()->getCurrentConfig()));
if(!cli_prov)
testAbort("No pva provider");
testDiag("Client Ready");
testSum(cli_prov);
testRPCFail(cli_prov);
}catch(std::exception& e){
PRINT_EXCEPTION(e);
testAbort("Unexpected exception: %s", e.what());
}
return testDone();
}
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