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105 lines
2.6 KiB
Go
105 lines
2.6 KiB
Go
/*
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Real-time Online/Offline Charging System (OCS) for Telecom & ISP environments
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Copyright (C) ITsysCOM GmbH
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>
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*/
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package main
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import (
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"bufio"
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"bytes"
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"io"
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"io/ioutil"
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"log"
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"math/rand"
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"net"
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"os"
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"sync"
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"time"
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)
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func NewFileReaderTester(fPath, cgrAddr string, parallel, runs int, reqSep []byte) (frt *FileReaderTester, err error) {
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frt = &FileReaderTester{
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parallel: parallel, runs: runs,
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reqSep: reqSep,
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}
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if frt.rdr, err = os.Open(fPath); err != nil {
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return nil, err
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}
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if frt.conn, err = net.Dial("tcp", cgrAddr); err != nil {
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return nil, err
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}
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return
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}
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// TesterReader will read requests from file and post them remotely
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type FileReaderTester struct {
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parallel int
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runs int
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reqSep []byte
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rdr io.Reader
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conn net.Conn
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connScnr *bufio.Scanner
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}
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func (frt *FileReaderTester) connSendReq(req []byte) (err error) {
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frt.conn.SetReadDeadline(time.Now().Add(time.Millisecond)) // will block most of the times on read
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if _, err = frt.conn.Write(req); err != nil {
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return
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}
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ioutil.ReadAll(frt.conn)
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return
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}
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// Test reads from rdr, split the content based on lineSep and sends individual lines to remote
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func (frt *FileReaderTester) Test() (err error) {
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var fContent []byte
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if fContent, err = ioutil.ReadAll(frt.rdr); err != nil {
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return
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}
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reqs := bytes.Split(fContent, frt.reqSep)
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// parallel requests
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if frt.parallel > 0 {
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var wg sync.WaitGroup
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reqLimiter := make(chan struct{}, frt.parallel)
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for i := 0; i < frt.runs; i++ {
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wg.Add(1)
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go func(i int) {
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reqLimiter <- struct{}{} // block till buffer will allow
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if err := frt.connSendReq(reqs[rand.Intn(len(reqs))]); err != nil {
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log.Printf("ERROR: %s", err.Error())
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}
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<-reqLimiter // release one request from buffer
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wg.Done()
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}(i)
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}
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wg.Wait()
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return
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}
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// serial requests
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for i := 0; i < frt.runs; i++ {
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for _, req := range reqs {
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if err := frt.connSendReq(req); err != nil {
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log.Printf("ERROR: %s", err.Error())
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}
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}
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}
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return
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}
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