github.com/GeniusesGroup/libgo@v0.0.0-20220929090155-5ff932cb408e/gp/mux-app.go (about)

     1  /* For license and copyright information please see LEGAL file in repository */
     2  
     3  package gp
     4  
     5  import (
     6  	"../protocol"
     7  )
     8  
     9  type AppMultiplexer struct{}
    10  
    11  // MakeGPNetwork register app to OS GP router and start handle income GP packets.
    12  func (appMux *AppMultiplexer) Init() (err protocol.Error) {
    13  	protocol.App.LogInfo("GP network begin listening...")
    14  	return
    15  }
    16  
    17  func (appMux *AppMultiplexer) HeaderID() protocol.NetworkLinkNextHeaderID {
    18  	return protocol.NetworkLinkNextHeaderGP
    19  }
    20  
    21  // Receive handle GP packet with any application protocol and response just some basic data!
    22  // Protocol Standard : https://github.com/GeniusesGroup/RFCs/blob/master/Giti-Network.md
    23  func (appMux *AppMultiplexer) Receive(linkConn protocol.NetworkLinkConnection, packet []byte) {
    24  	var err protocol.Error
    25  	var gpAddr [16]byte = GetSourceAddr(packet)
    26  	// Find Connection from ConnectionPoolByPeerAdd by requester GP
    27  	var conn protocol.Connection = protocol.App.GetConnectionByPeerAddr(gpAddr)
    28  	// If it is first time that user want to connect or longer than server GC old unused connections!
    29  	if conn == nil {
    30  		// conn, err = MakeNewConnectionByPeerAdd(gpAddr, linkConn)
    31  		if err != nil {
    32  			// Send response or just ignore packet
    33  			// TODO::: DDOS!!??
    34  			return
    35  		}
    36  		protocol.App.RegisterConnection(conn)
    37  	}
    38  	conn.(*Connection).Receive(packet)
    39  	return
    40  }
    41  
    42  // Shutdown the listener when the application closes or force to closes by not recovered panic!
    43  func (appMux *AppMultiplexer) Shutdown() {
    44  	// first closing open listener for income packet and refuse all new packet,
    45  	// then closing all idle connections,
    46  	// and then waiting indefinitely for connections to return to idle
    47  	// and then shut down
    48  }