tcp_client_hello_world.cpp
Go to the documentation of this file.
1 /*
2  * Software License Agreement (BSD-3 License)
3  *
4  * Copyright (c) 2019 Rein Appeldoorn.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions are met:
9  *
10  * * Redistributions of source code must retain the above copyright notice, this
11  * list of conditions and the following disclaimer.
12  *
13  * * Redistributions in binary form must reproduce the above copyright notice,
14  * this list of conditions and the following disclaimer in the documentation
15  * and/or other materials provided with the distribution.
16  *
17  * * Neither the name of the copyright holder nor the names of its
18  * contributors may be used to endorse or promote products derived from
19  * this software without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
22  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
24  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
27  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
28  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
29  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32 
40 #include <async_comm/tcp_client.h>
41 
42 #include <cstdint>
43 #include <cstring>
44 #include <iostream>
45 
46 #include <chrono>
47 #include <thread>
48 #include <vector>
49 
50 
59 void callback(const uint8_t* buf, size_t len)
60 {
61  for (size_t i = 0; i < len; i++)
62  {
63  std::cout << buf[i];
64  }
65 }
66 
67 
68 int main()
69 {
70  // open TCP connection
71  async_comm::TCPClient tcp_client("localhost", 16140);
73 
74  if (!tcp_client.init())
75  {
76  std::cout << "Failed to initialize TCP client" << std::endl;
77  return 1;
78  }
79 
80  // send message one direction
81  for (size_t i = 0; i < 10; ++i)
82  {
83  std::string msg = "hello world " + std::to_string(i) + "!";
84  tcp_client.send_bytes((uint8_t*) msg.data(), msg.size());
85  std::this_thread::sleep_for(std::chrono::milliseconds(500));
86  }
87 
88  // close connection
89  tcp_client.close();
90 
91  return 0;
92 }
int main()
void send_bytes(const uint8_t *src, size_t len)
Send bytes from a buffer over the port.
Definition: comm.cpp:94
bool init()
Initializes and opens the port.
Definition: comm.cpp:58
Asynchronous communication class for a TCP client.
Definition: tcp_client.h:55
void register_receive_callback(std::function< void(const uint8_t *, size_t)> fun)
Register a callback function for when bytes are received on the port.
Definition: comm.cpp:107
void close()
Closes the port.
Definition: comm.cpp:71
void callback(const uint8_t *buf, size_t len)
Callback function for the async_comm library.


async_comm
Author(s):
autogenerated on Thu May 16 2019 03:03:47