Merge pull request #65 from yang-g/rgreadme

Update README

cpp/cpptutorial.md

@@ -20,7 +20,7 @@ With gRPC we can define our service once in a .proto file and implement clients
 
 ## Example code and setup
 
-The example code for our tutorial is in [grpc/grpc-common/cpp/route_guide](https://github.com/grpc/grpc-common/cpp/route_guide). To download the example, clone the `grpc-common` repository by running the following command:
+The example code for our tutorial is in [grpc/grpc-common/cpp/route_guide](https://github.com/grpc/grpc-common/tree/master/cpp/route_guide). To download the example, clone the `grpc-common` repository by running the following command:
 ```shell
 $ git clone https://github.com/google/grpc-common.git
 ```
@@ -49,7 +49,7 @@ Then you define `rpc` methods inside your service definition, specifying their r
 
 - A *simple RPC* where the client sends a request to the server using the stub and waits for a response to come back, just like a normal function call.
 ```
- // Obtains the feature at a given position.
+   // Obtains the feature at a given position.
    rpc GetFeature(Point) returns (Feature) {}
 ```
 
@@ -101,7 +101,9 @@ $ make route_guide.pb.cc
 
 which actually runs:
 
-[actual command]
+```shell
+$ protoc -I ../../protos --cpp_out=. --grpc_out=. --plugin=protoc-gen-grpc=`which grpc_cpp_plugin` ../../protos/route_guide.proto
+```
 
 Running this command generates the following files:
 - `route_guide.pb.h`, the header which declares your generated classes
@@ -123,7 +125,7 @@ There are two parts to making our `RouteGuide` service do its job:
 - Implementing the service interface generated from our service definition: doing the actual "work" of our service.
 - Running a gRPC server to listen for requests from clients and return the service responses.
 
-You can find our example `RouteGuide` server in [grpc-common/cpp/route_guide/route_guide_server.cc]((https://github.com/grpc/grpc-common/blob/master/cpp/route_guide/route_guide_server.cc). Let's take a closer look at how it works.
+You can find our example `RouteGuide` server in [grpc-common/cpp/route_guide/route_guide_server.cc](https://github.com/grpc/grpc-common/blob/master/cpp/route_guide/route_guide_server.cc). Let's take a closer look at how it works.
 
 ### Implementing RouteGuide
 
@@ -218,9 +220,7 @@ void RunServer(const std::string& db_path) {
   builder.RegisterService(&service);
   std::unique_ptr<Server> server(builder.BuildAndStart());
   std::cout << "Server listening on " << server_address << std::endl;
-  while (true) {
-    std::this_thread::sleep_for(std::chrono::seconds(5));
-  }
+  server->Wait();
 }
 ```
 As you can see, we build and start our server using a `ServerBuilder`. To do this, we:
@@ -230,8 +230,7 @@ As you can see, we build and start our server using a `ServerBuilder`. To do thi
 3. Specify the address and port we want to use to listen for client requests using the builder's `AddPort()` method.
 4. Register our service implementation with the builder.
 5. Call `BuildAndStart()` on the builder to create and start an RPC server for our service.
-
-_[is there no equivalent of the Stubby4 wait() method, ie do you have to do the while(true) loop to keep the server running?]_
+5. Call `Wait()` on the server to do a blocking wait until process is killed or `Shutdown()` is called.
 
 <a name="client"></a>
 ## Creating the client
@@ -351,7 +350,16 @@ The syntax for reading and writing here is exactly the same as for our client-st
 
 ## Try it out!
 
-_[need build and run instructions here]_
-
-
+Build client and server:
+```shell
+$ make
+```
+Run the server, which will listen on port 50051:
+```shell
+$ ./route_guide_server
+```
+Run the client (in a different terminal):
+```shell
+$ ./route_guide_client
+```
 

cpp/route_guide/route_guide_server.cc

@@ -37,7 +37,6 @@
 #include <iostream>
 #include <memory>
 #include <string>
-#include <thread>
 
 #include <grpc/grpc.h>
 #include <grpc++/server.h>
@@ -191,9 +190,7 @@ void RunServer(const std::string& db_path) {
   builder.RegisterService(&service);
   std::unique_ptr<Server> server(builder.BuildAndStart());
   std::cout << "Server listening on " << server_address << std::endl;
-  while (true) {
-    std::this_thread::sleep_for(std::chrono::seconds(5));
-  }
+  server->Wait();
 }
 
 int main(int argc, char** argv) {