# p4p

**Repository Path**: quester/p4p

## Basic Information

- **Project Name**: p4p
- **Description**: p4p 
- **Primary Language**: C
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 1
- **Created**: 2014-12-08
- **Last Updated**: 2020-12-19

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

p4p project

1.what's p4p?
  p4p is a project for p2p based network access approach library.
 Basically,it's very simple to use both on device and client.
  The communication model as following diagram.
  ---------                ----------
  |device |<---------------|client  |
  |uid    |--------------->|        |
  --------| p4p channel    |---------
  In general, device is similar as a socket listening and client
  is simliar as a socket connect. 
  p4p channel is a concept that data multiplexing mechanism between
  device and client. And the default channel is channel 0 ,so long
  as basic API of p4p library provided.
  For device,the p4p working flow:
  p4p_initialize();
  int handle = p4p_listen(uid);//when p4p_listen() return,a client connect request accept
  p4p_write(handle,...);
  p4p_read(handle,...);
  p4p_close(handle);
  p4p_deinitialze();

  For client, the p4p working flow:
  p4p_initialize();
  int handle = p4p_connect(uid);//when p4p_connect() return,return value means connect successful or failed.
  p4p_write(handle,...);
  p4p_read(handle,...);
  p4p_close(handle);
  p4p_deinitialze();

2.how to build p4p?
  For variant target platform ,many makefiles are provided.
  Linux Platform: Makefile
  Android Platform: jni/Android.mk jni/Application.mk
  Win32 Platform:p4p/p4p.sln

3.sample code to use p4p library
  See samples/* files to reference existed examples.