mirror of
https://github.com/unclechu/gRPC-haskell.git
synced 2024-06-26 22:48:35 +02:00
096d399b30
* (wip) Change ClientRWHandler to use an IO action for metadata acqui * Demonstrate placement of WaitForInitialMetadata() in hellos_client * Make hellos cpp server always send metadata first, for now * Show getMD placement in haskell hellos-client * Add prelim bidi metadata exchange behavior tweaks to line up with C++ API conventions
89 lines
2.4 KiB
C++
89 lines
2.4 KiB
C++
#include <iostream>
|
|
#include <memory>
|
|
#include <string>
|
|
|
|
#include <grpc++/grpc++.h>
|
|
|
|
#include "hellos.grpc.pb.h"
|
|
|
|
using grpc::Server;
|
|
using grpc::ServerBuilder;
|
|
using grpc::ServerContext;
|
|
using grpc::ServerWriter;
|
|
using grpc::ServerReader;
|
|
using grpc::ServerReaderWriter;
|
|
using grpc::Status;
|
|
using hellos::SSRqt;
|
|
using hellos::SSRpy;
|
|
using hellos::CSRqt;
|
|
using hellos::CSRpy;
|
|
using hellos::BiRqtRpy;
|
|
using hellos::Hellos;
|
|
|
|
static void Die(const std::string& msg) {
|
|
std::cerr << "Fatal error: " << msg << std::endl;
|
|
exit(1);
|
|
}
|
|
|
|
class HellosImpl final : public Hellos::Service {
|
|
Status HelloSS(ServerContext* context,
|
|
const SSRqt* rqt,
|
|
ServerWriter<SSRpy>* writer) override {
|
|
for (unsigned i = 0; i < rqt->num_replies(); ++i) {
|
|
SSRpy rpy;
|
|
rpy.set_greeting("Hello there, " + rqt->name() + "!");
|
|
writer->Write(rpy);
|
|
}
|
|
return Status::OK;
|
|
}
|
|
|
|
Status HelloCS(ServerContext* context,
|
|
ServerReader<CSRqt>* reader,
|
|
CSRpy* rpy) override {
|
|
CSRqt rqt;
|
|
unsigned rqtCnt = 0;
|
|
std::string ex("client streaming payload");
|
|
while (reader->Read(&rqt)) {
|
|
if (rqt.message() != ex)
|
|
Die("HelloCS/rpy: expected payload '" + ex +
|
|
"', got '" + rqt.message() + "'");
|
|
++rqtCnt;
|
|
}
|
|
rpy->set_num_requests(rqtCnt);
|
|
return Status::OK;
|
|
}
|
|
|
|
Status HelloBi(ServerContext* context,
|
|
ServerReaderWriter<BiRqtRpy, BiRqtRpy>* strm) override {
|
|
BiRqtRpy rqt;
|
|
strm->SendInitialMetadata();
|
|
while (strm->Read(&rqt)) {
|
|
strm->Write(rqt);
|
|
}
|
|
return Status::OK;
|
|
}
|
|
|
|
};
|
|
|
|
void RunServer() {
|
|
std::string server_address("0.0.0.0:50051");
|
|
HellosImpl service;
|
|
ServerBuilder builder;
|
|
// Listen on the given address without any authentication mechanism.
|
|
builder.AddListeningPort(server_address, grpc::InsecureServerCredentials());
|
|
// Register "service" as the instance through which we'll communicate with
|
|
// clients. In this case it corresponds to an *synchronous* service.
|
|
builder.RegisterService(&service);
|
|
// Finally assemble the server.
|
|
std::unique_ptr<Server> server(builder.BuildAndStart());
|
|
std::cout << "Server listening on " << server_address << std::endl;
|
|
// Wait for the server to shutdown. Note that some other thread must be
|
|
// responsible for shutting down the server for this call to ever return.
|
|
server->Wait();
|
|
}
|
|
|
|
int main(int argc, char** argv) {
|
|
RunServer();
|
|
return 0;
|
|
}
|