writing to socket

boost_boilerplate/CMakeLists.txt

@@ -73,3 +73,8 @@ add_executable(stream_oriented_buffers
   src/chapter02_io/stream_oriented_buffers.cpp
   src/sdk.h)
 target_link_libraries(stream_oriented_buffers PRIVATE Threads::Threads)
+
+add_executable(writing_tcp_sync
+  src/chapter02_io/writing_tcp_sync.cpp
+  src/sdk.h)
+target_link_libraries(writing_tcp_sync PRIVATE Threads::Threads)

boost_boilerplate/src/chapter02_io/writing_tcp_sync.cpp

@@ -0,0 +1,40 @@
+#include <boost/asio.hpp>
+#include <iostream>
+#include <memory>
+
+using namespace boost;
+using namespace std;
+
+void WriteToSocket(asio::ip::tcp::socket& sock)
+{
+  string buf = "Hello"s;
+  size_t total_bytes_written {};
+
+  while (total_bytes_written != buf.length())
+  {
+    total_bytes_written += sock.write_some(asio::buffer(buf.c_str() + total_bytes_written,
+                                                        buf.length() - total_bytes_written));
+  }
+}
+
+int main()
+{
+  string raw_ip_address = "127.0.0.1";
+  size_t port_num = 3333;
+
+  try
+  {
+    asio::ip::tcp::endpoint ep(asio::ip::address::from_string(raw_ip_address), port_num);
+    asio::io_service io_service;
+    asio::ip::tcp::socket sock(io_service, ep.protocol());
+
+    sock.connect(ep);
+    WriteToSocket(sock);
+  }
+  catch (const system::system_error& e)
+  {
+    cout << "Error! " << e.what() << endl;
+  }
+
+  return EXIT_SUCCESS;
+}