From 68cac85ea58c69301645167f92d94bdb6e360753 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Tue, 8 Jun 2021 10:16:22 +0800
Subject: import(life): ...

---
 works/life/computer-network-experiment/client.cpp | 59 ++++++++++++++++++++---
 1 file changed, 52 insertions(+), 7 deletions(-)

(limited to 'works/life/computer-network-experiment/client.cpp')

diff --git a/works/life/computer-network-experiment/client.cpp b/works/life/computer-network-experiment/client.cpp
index a8ce8cf..c206856 100644
--- a/works/life/computer-network-experiment/client.cpp
+++ b/works/life/computer-network-experiment/client.cpp
@@ -5,6 +5,9 @@
 #include "Common.h"
 #include "IO.h"
 
+#include <folly/CancellationToken.h>
+#include <folly/ProducerConsumerQueue.h>
+
 #ifdef WIN32
 #include <Windows.h>
 #include <winsock.h>
@@ -12,12 +15,29 @@
 #include <arpa/inet.h>
 #include <netinet/in.h>
 #include <sys/socket.h>
-
 #endif
 
 const auto connect_address = "127.0.0.1"; // control connect address
 const u_short port = 1234;                // control connect port
 
+namespace {
+folly::ProducerConsumerQueue<std::string> send_queue(100);
+folly::CancellationSource cancellation_source;
+} // namespace
+
+void PrintHelp() {
+  SendOutput(CRUT("Input anything to send to server. Or just enter to receive "
+                  "lastest messages from server.\n"));
+}
+
+void OnInputLine(StringView line) {
+  if (line.empty()) {
+    return;
+  } else {
+    send_queue.write(ConvertCharStringBack(line) + '\n');
+  }
+}
+
 int Main() {
   int client_socket;
 
@@ -37,17 +57,42 @@ int Main() {
     PrintErrorMessageAndExit(CRUT("Failed to connect!"));
   }
 
-  String name;
-  {
-    auto guard = BlockOutputThread();
-    output_stream << CRUT("Please input your name:");
-    name = ReadInputLine();
-  }
+  output_stream << CRUT("Please input your name:\n> ");
+  String name = ReadInputLine();
+
+  PrintHelp();
+
+  StartIOThread();
 
   name.push_back(CRUT('\n'));
   auto name_data = ConvertCharStringBack(name);
   SafeSend(client_socket, name_data);
 
+  std::thread receive_thread([client_socket] {
+    std::string rest;
+    while (true) {
+      if (cancellation_source.isCancellationRequested()) {
+        break;
+      }
+
+      std::string s = SafeReadUntil(client_socket, '\n', rest);
+
+      SendOutput(CRUT("Recived a message:\n{}\n"), ConvertCharString(s));
+    }
+  });
+  receive_thread.detach();
+
+  while (true) {
+    if (cancellation_source.isCancellationRequested()) {
+      break;
+    }
+
+    std::string s;
+    if (send_queue.read(s)) {
+      SafeSend(client_socket, s);
+    }
+  }
+
   CloseSocket(client_socket);
   return 0;
 }
-- 
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