src/call.go

   1 /*
   2 NNCP -- Node to Node copy, utilities for store-and-forward data exchange
   3 Copyright (C) 2016-2019 Sergey Matveev <stargrave@stargrave.org>
   4
   5 This program is free software: you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation, version 3 of the License.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 GNU General Public License for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16 */
  17
  18 package nncp
  19
  20 import (
  21         "net"
  22
  23         "github.com/gorhill/cronexpr"
  24 )
  25
  26 type Call struct {
  27         Cron           *cronexpr.Expression
  28         Nice           uint8
  29         Xx             TRxTx
  30         RxRate         int
  31         TxRate         int
  32         Addr           *string
  33         OnlineDeadline uint
  34         MaxOnlineTime  uint
  35 }
  36
  37 func (ctx *Ctx) CallNode(
  38         node *Node,
  39         addrs []string,
  40         nice uint8,
  41         xxOnly TRxTx,
  42         rxRate, txRate int,
  43         onlineDeadline, maxOnlineTime uint,
  44         listOnly bool,
  45         onlyPkts map[[32]byte]bool,
  46 ) (isGood bool) {
  47         for _, addr := range addrs {
  48                 sds := SDS{"node": node.Id, "addr": addr}
  49                 ctx.LogD("call", sds, "dialing")
  50                 var conn ConnDeadlined
  51                 var err error
  52                 if addr[0] == '|' {
  53                         conn, err = NewPipeConn(addr[1:])
  54                 } else {
  55                         conn, err = net.Dial("tcp", addr)
  56                 }
  57                 if err != nil {
  58                         ctx.LogD("call", SdsAdd(sds, SDS{"err": err}), "dialing")
  59                         continue
  60                 }
  61                 ctx.LogD("call", sds, "connected")
  62                 state := SPState{
  63                         Ctx:            ctx,
  64                         Node:           node,
  65                         Nice:           nice,
  66                         onlineDeadline: onlineDeadline,
  67                         maxOnlineTime:  maxOnlineTime,
  68                         xxOnly:         xxOnly,
  69                         rxRate:         rxRate,
  70                         txRate:         txRate,
  71                         listOnly:       listOnly,
  72                         onlyPkts:       onlyPkts,
  73                 }
  74                 if err = state.StartI(conn); err == nil {
  75                         ctx.LogI("call-start", sds, "connected")
  76                         state.Wait()
  77                         ctx.LogI("call-finish", SDS{
  78                                 "node":     state.Node.Id,
  79                                 "duration": int64(state.Duration.Seconds()),
  80                                 "rxbytes":  state.RxBytes,
  81                                 "txbytes":  state.TxBytes,
  82                                 "rxspeed":  state.RxSpeed,
  83                                 "txspeed":  state.TxSpeed,
  84                         }, "")
  85                         isGood = true
  86                         conn.Close()
  87                         break
  88                 } else {
  89                         ctx.LogE("call-start", sds, err, "")
  90                         conn.Close()
  91                 }
  92         }
  93         return
  94 }