src/cypherpunks.ru/nncp/call.go

   1 /*
   2 NNCP -- Node to Node copy, utilities for store-and-forward data exchange
   3 Copyright (C) 2016-2017 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, either version 3 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 */
  18
  19 package nncp
  20
  21 import (
  22         "net"
  23         "strconv"
  24 )
  25
  26 func (ctx *Ctx) CallNode(node *Node, addrs []string, nice uint8, xxOnly TRxTx, onlineDeadline, maxOnlineTime uint) (isGood bool) {
  27         for _, addr := range addrs {
  28                 sds := SDS{"node": node.Id, "addr": addr}
  29                 ctx.LogD("call", sds, "dialing")
  30                 conn, err := net.Dial("tcp", addr)
  31                 if err != nil {
  32                         ctx.LogD("call", SdsAdd(sds, SDS{"err": err}), "dialing")
  33                         continue
  34                 }
  35                 ctx.LogD("call", sds, "connected")
  36                 state, err := ctx.StartI(
  37                         conn,
  38                         node.Id,
  39                         nice,
  40                         xxOnly,
  41                         onlineDeadline,
  42                         maxOnlineTime,
  43                 )
  44                 if err == nil {
  45                         ctx.LogI("call-start", sds, "connected")
  46                         state.Wait()
  47                         ctx.LogI("call-finish", SDS{
  48                                 "node":     state.Node.Id,
  49                                 "duration": strconv.FormatInt(int64(state.Duration.Seconds()), 10),
  50                                 "rxbytes":  strconv.FormatInt(state.RxBytes, 10),
  51                                 "txbytes":  strconv.FormatInt(state.TxBytes, 10),
  52                                 "rxspeed":  strconv.FormatInt(state.RxSpeed, 10),
  53                                 "txspeed":  strconv.FormatInt(state.TxSpeed, 10),
  54                         }, "")
  55                         isGood = true
  56                         conn.Close()
  57                         break
  58                 } else {
  59                         ctx.LogE("call-start", SdsAdd(sds, SDS{"err": err}), "")
  60                         conn.Close()
  61                 }
  62         }
  63         return
  64 }