src/call.go

   1 /*
   2 NNCP -- Node to Node copy, utilities for store-and-forward data exchange
   3 Copyright (C) 2016-2020 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         "time"
  23
  24         "github.com/gorhill/cronexpr"
  25 )
  26
  27 type Call struct {
  28         Cron           *cronexpr.Expression
  29         Nice           uint8
  30         Xx             TRxTx
  31         RxRate         int
  32         TxRate         int
  33         Addr           *string
  34         OnlineDeadline uint
  35         MaxOnlineTime  time.Duration
  36 }
  37
  38 func (ctx *Ctx) CallNode(
  39         node *Node,
  40         addrs []string,
  41         nice uint8,
  42         xxOnly TRxTx,
  43         rxRate, txRate int,
  44         onlineDeadline uint,
  45         maxOnlineTime time.Duration,
  46         listOnly bool,
  47         onlyPkts map[[32]byte]bool,
  48 ) (isGood bool) {
  49         for _, addr := range addrs {
  50                 sds := SDS{"node": node.Id, "addr": addr}
  51                 ctx.LogD("call", sds, "dialing")
  52                 var conn ConnDeadlined
  53                 var err error
  54                 if addr[0] == '|' {
  55                         conn, err = NewPipeConn(addr[1:])
  56                 } else {
  57                         conn, err = net.Dial("tcp", addr)
  58                 }
  59                 if err != nil {
  60                         ctx.LogD("call", SdsAdd(sds, SDS{"err": err}), "dialing")
  61                         continue
  62                 }
  63                 ctx.LogD("call", sds, "connected")
  64                 state := SPState{
  65                         Ctx:            ctx,
  66                         Node:           node,
  67                         Nice:           nice,
  68                         onlineDeadline: onlineDeadline,
  69                         maxOnlineTime:  maxOnlineTime,
  70                         xxOnly:         xxOnly,
  71                         rxRate:         rxRate,
  72                         txRate:         txRate,
  73                         listOnly:       listOnly,
  74                         onlyPkts:       onlyPkts,
  75                 }
  76                 if err = state.StartI(conn); err == nil {
  77                         ctx.LogI("call-start", sds, "connected")
  78                         state.Wait()
  79                         ctx.LogI("call-finish", SDS{
  80                                 "node":     state.Node.Id,
  81                                 "duration": int64(state.Duration.Seconds()),
  82                                 "rxbytes":  state.RxBytes,
  83                                 "txbytes":  state.TxBytes,
  84                                 "rxspeed":  state.RxSpeed,
  85                                 "txspeed":  state.TxSpeed,
  86                         }, "")
  87                         isGood = true
  88                         conn.Close()
  89                         break
  90                 } else {
  91                         ctx.LogE("call-start", sds, err, "")
  92                         conn.Close()
  93                 }
  94         }
  95         return
  96 }