gearman-go/example/exec-worker/worker.go

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2012-11-22 17:15:20 +08:00
// Copyright 2012 Xing Xing <mikespook@gmail.com>.
// All rights reserved.
// Use of this source code is governed by a commercial
// license that can be found in the LICENSE file.
package main
import (
"os"
"flag"
"time"
"bitbucket.org/mikespook/golib/log"
"bitbucket.org/mikespook/golib/pid"
"bitbucket.org/mikespook/golib/prof"
"bitbucket.org/mikespook/golib/signal"
"bitbucket.org/mikespook/gearman-go/worker"
)
var (
pidfile = flag.String("pid", "/run/seedworker.pid",
"PID file to write pid")
proffile = flag.String("prof", "", "Profiling file")
dumpfile = flag.String("dump", "", "Heap dumping file")
dumptime = flag.Int("dumptime", 5, "Heap dumping time interval")
joblimit = flag.Int("job-limit", worker.Unlimited,
"Maximum number of concurrently executing job." +
" Zero is unlimited.")
basedir = flag.String("basedir", "", "Working directory of the php scripts.")
timeout = flag.Uint("timeout", 30, "Executing time out.")
gearmand = flag.String("gearmand", "127.0.0.1:4730", "Address and port of gearmand")
)
func init() {
flag.Parse()
initLog()
if *basedir == "" {
*basedir = "./script/"
}
}
func main() {
log.Message("Starting ... ")
defer func() {
time.Sleep(time.Second)
log.Message("Shutdown complate!")
}()
// init profiling file
if *proffile != "" {
log.Debugf("Open a profiling file: %s", *proffile)
if err := prof.Start(*proffile); err != nil {
log.Error(err)
} else {
defer prof.Stop()
}
}
// init heap dumping file
if *dumpfile != "" {
log.Debugf("Open a heap dumping file: %s", *dumpfile)
if err := prof.NewDump(*dumpfile); err != nil {
log.Error(err)
} else {
defer prof.CloseDump()
go func() {
for prof.Dumping {
time.Sleep(time.Duration(*dumptime) * time.Second)
prof.Dump()
}
}()
}
}
// init pid file
log.Debugf("Open a pid file: %s", *pidfile)
if pidFile, err := pid.New(*pidfile); err != nil {
log.Error(err)
} else {
defer pidFile.Close()
}
w := worker.New(*joblimit)
if err := w.AddServer(*gearmand); err != nil {
log.Error(err)
return
}
if err := w.AddFunc("exec", execShell, uint32(*timeout)); err != nil {
log.Error(err)
return
}
if err := w.AddFunc("execphp", execPHP, uint32(*timeout)); err != nil {
log.Error(err)
return
}
defer w.Close()
go w.Work()
// signal handler
sh := signal.NewHandler()
sh.Bind(os.Interrupt, func() bool {return true})
sh.Loop()
}