https://github.com/RT-Thread-packages/nopoll

ASPLes/nopoll - OpenSource WebSocket toolkit for RT-Thread
https://github.com/RT-Thread-packages/nopoll

iot nopoll websocket

Last synced: 15 days ago
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ASPLes/nopoll - OpenSource WebSocket toolkit for RT-Thread

• Host: GitHub
• URL: https://github.com/RT-Thread-packages/nopoll
• Owner: RT-Thread-packages
• License: lgpl-2.1
• Created: 2018-01-20T04:03:43.000Z (about 7 years ago)
• Default Branch: master
• Last Pushed: 2022-03-29T13:44:07.000Z (almost 3 years ago)
• Last Synced: 2023-02-27T20:51:52.555Z (almost 2 years ago)
• Topics: iot, nopoll, websocket
• Language: C
• Size: 124 KB
• Stars: 11
• Watchers: 4
• Forks: 4
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• awesome-rt-thread - nopoll - A OpenSource WebSocket implementation (RFC 6455) in ansi C. (Packages / IoT)
• awesome-rt-thread - nopoll - A OpenSource WebSocket implementation (RFC 6455) in ansi C. (Packages / IoT)

README

        
# noPoll  

[noPoll](https://github.com/ASPLes/nopoll) is a OpenSource WebSocket implementation (RFC 6455) , written in ansi C , that allows building pure WebSocket solutions or to provide WebSocket support to existing TCP oriented applications.   

Here is a simple implementation for RT-Thread based on [noPoll](https://github.com/ASPLes/nopoll) , temporarily only support non-encrypted operation.  

# Quick Start  

There is a websocket client example at `examples/nopoll_client.c`.  

Test server host : echo.websocket.org  

Test server port : 80 

Run the example at `MSH` as follows :

```

msh />nopoll_client

web socket connection ready!

sending content..

recv: Hello RT-Thread!

sendcnt = 1

...

...

```

# Notes  

## 1 Not defined `strdup` function   

If your compiler is not offered `strdup` function , you can implement it yourself as shown below :   

```

/* _strdup.c  */   

#include 

#ifdef RT_USING_HEAP

char *strdup(const char *s)

{

	size_t len = strlen(s) + 1;

	char *tmp = (char *)rt_malloc(len);

	if(!tmp) return NULL;

	rt_memcpy(tmp, s, len);

	return tmp;

}

#endif

```

## 2 `FD_SETSIZE` too small  

Please config the project as shown below :   

The `RT-Thread Component/Device virtual file system/The maximal number of opened files` value need to  greater or equal to `RT-Thread Component/Network stack/light weight TCP/IP stack/The number of raw connection` value.  

# Reference  

1 WebSocket Official website : http://websocket.org/  

2 noPoll Official website : http://www.aspl.es/nopoll/  

3 noPoll GitHub repository : https://github.com/ASPLes/nopoll  

4 WebSocket test server : http://websocket.org/echo.html