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// Copyright 2017 Yahoo Holdings. 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 <sstream>
#include <vespa/log/log.h>
LOG_SETUP("vespa-ping-configproxy");
class PingProxy : public FastOS_Application
{
private:
FRT_Supervisor *_supervisor;
FRT_Target *_target;
PingProxy(const PingProxy &);
PingProxy &operator=(const PingProxy &);
public:
PingProxy() : _supervisor(NULL), _target(NULL) {}
virtual ~PingProxy();
int usage();
void initRPC(const char *spec);
void finiRPC();
int Main() override;
};
PingProxy::~PingProxy()
{
LOG_ASSERT(_supervisor == NULL);
LOG_ASSERT(_target == NULL);
}
int
PingProxy::usage()
{
fprintf(stderr, "usage: %s\n", _argv[0]);
fprintf(stderr, "-s [server] (server hostname, default localhost)\n");
fprintf(stderr, "-p [port] (server port number, default 19090)\n");
return 1;
}
void
PingProxy::initRPC(const char *spec)
{
_supervisor = new FRT_Supervisor();
_target = _supervisor->GetTarget(spec);
_supervisor->Start();
}
void
PingProxy::finiRPC()
{
if (_target != NULL) {
_target->SubRef();
_target = NULL;
}
if (_supervisor != NULL) {
_supervisor->ShutDown(true);
delete _supervisor;
_supervisor = NULL;
}
}
int
PingProxy::Main()
{
int retval = 0;
bool debugging = false;
char c = -1;
const char *serverHost = "localhost";
int clientTimeout = 5;
int serverPort = 19090;
const char *optArg = NULL;
int optInd = 0;
while ((c = GetOpt("w:s:p:dh", optArg, optInd)) != -1) {
switch (c) {
case 'w':
clientTimeout = atoi(optArg);
break;
case 's':
serverHost = optArg;
break;
case 'p':
serverPort = atoi(optArg);
break;
case 'd':
debugging = true;
break;
case '?':
default:
retval = 1;
// fallthrough
case 'h':
usage();
return retval;
}
}
if (serverPort == 0) {
usage();
return 1;
}
std::ostringstream tmp;
tmp << "tcp/";
tmp << serverHost;
tmp << ":";
tmp << serverPort;
std::string sspec = tmp.str();
const char *spec = sspec.c_str();
if (debugging) {
printf("connecting to '%s'\n", spec);
}
initRPC(spec);
FRT_RPCRequest *req = _supervisor->AllocRPCRequest();
req->SetMethodName("ping");
_target->InvokeSync(req, clientTimeout); // seconds
if (req->IsError()) {
retval = 1;
fprintf(stderr, "error %d: %s\n",
req->GetErrorCode(), req->GetErrorMessage());
} else {
FRT_Values &answer = *(req->GetReturn());
const char *atypes = answer.GetTypeString();
if (strcmp(atypes, "i") == 0) {
if (debugging) {
printf("ping %d\n", answer[0]._intval32);
}
} else {
fprintf(stderr, "unexpected return types in RPC answer: '%s'\n", atypes);
retval = 1;
}
}
finiRPC();
return retval;
}
int main(int argc, char **argv)
{
PingProxy app;
return app.Entry(argc, argv);
}
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