yuxh/gearman-go
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refacotring worker's code

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--HG--
branch : 0.1
rename : worker/jobagent.go => worker/agent.go
rename : worker/workerjob.go => worker/job.go
This commit is contained in:
mikespook 2012-05-23 17:45:52 +08:00
parent 563af037cb
commit 2960cb9953
6 changed files with 122 additions and 172 deletions
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2
client/client.go
View File

@ -45,7 +45,7 @@ type Client struct {
// Eg. // Eg.
// client, err := client.New("127.0.0.1:4730") // client, err := client.New("127.0.0.1:4730")
func New(addr string) (client *Client, err error) { func New(addr string) (client *Client, err error) {
conn, err := net.Dial("tcp", addr) conn, err := net.Dial(common.NETWORK, addr)
if err != nil { if err != nil {
return return
} }

5
common/gearman.go
View File

@ -6,10 +6,7 @@
package common package common
const ( const (
// the number limited for job servers. NETWORK = "tcp"
WORKER_SERVER_CAP = 32
// the number limited for functions.
WORKER_FUNCTION_CAP = 512
// queue size // queue size
QUEUE_SIZE = 512 QUEUE_SIZE = 512
// read buffer size // read buffer size

48
example/worker.go
View File

@ -1,61 +1,25 @@
package main package main
import ( import (
"bitbucket.org/mikespook/gearman-go/gearman" "bitbucket.org/mikespook/gearman-go/worker"
"bitbucket.org/mikespook/gearman-go/gearman/worker" // "bitbucket.org/mikespook/golib/signal"
"bitbucket.org/mikespook/golib/signal" // "os"
"os"
"fmt"
"log" "log"
"strings" "strings"
) )
func ToUpper(job *worker.WorkerJob) ([]byte, error) { func ToUpper(job *worker.Job) ([]byte, error) {
data := []byte(strings.ToUpper(string(job.Data))) data := []byte(strings.ToUpper(string(job.Data)))
return data, nil return data, nil
} }
func main() { func main() {
w := worker.New(worker.Unlimit) w := worker.New(worker.Unlimited)
w.ErrFunc = func(e error) { w.ErrHandler = func(e error) {
log.Println(e) log.Println(e)
} }
w.AddServer("127.0.0.1:4730") w.AddServer("127.0.0.1:4730")
w.AddFunction("ToUpper", ToUpper, 0) w.AddFunction("ToUpper", ToUpper, 0)
w.AddFunction("ToUpperTimeOut5", ToUpper, 5) w.AddFunction("ToUpperTimeOut5", ToUpper, 5)
// Catch the interrupt to exit the working loop.
sh := signal.NewHandler()
sh.Bind(os.Interrupt, func() bool {
w.Close()
return true
})
go sh.Loop()
go func() {
log.Println("start worker")
for {
print("cmd: ")
var str string
fmt.Scan(&str)
switch str {
case "echo":
w.Echo([]byte("Hello world!"))
var job *worker.WorkerJob
for job = <-w.JobQueue; job.DataType != gearman.ECHO_RES; job = <-w.JobQueue {
log.Println(job)
}
log.Println(string(job.Data))
case "quit":
os.Exit(0)
return
case "result":
job := <-w.JobQueue
log.Println(string(job.Data))
default:
log.Println("Unknown command")
}
}
}()
w.Work() w.Work()
} }

54
worker/jobagent.go → worker/agent.go
View File

@ -5,9 +5,9 @@
package worker package worker
import ( import (
gearman "bitbucket.org/mikespook/gearman-go"
"io" "io"
"net" "net"
"bitbucket.org/mikespook/gearman-go/common"
) )
// The agent of job server. // The agent of job server.
@ -15,27 +15,33 @@ type jobAgent struct {
conn net.Conn conn net.Conn
worker *Worker worker *Worker
running bool running bool
incoming chan []byte in chan []byte
out chan *Job
} }
// Create the agent of job server. // Create the agent of job server.
func newJobAgent(addr string, worker *Worker) (jobagent *jobAgent, err error) { func newJobAgent(addr string, worker *Worker) (jobagent *jobAgent, err error) {
conn, err := net.Dial(gearman.TCP, addr) conn, err := net.Dial(common.NETWORK, addr)
if err != nil { if err != nil {
return nil, err return nil, err
} }
jobagent = &jobAgent{conn: conn, worker: worker, running: true, incoming: make(chan []byte, gearman.QUEUE_CAP)} jobagent = &jobAgent{
conn: conn,
worker: worker,
running: true,
in: make(chan []byte, common.QUEUE_SIZE),
}
return jobagent, err return jobagent, err
} }
// Internal read // Internal read
func (agent *jobAgent) read() (data []byte, err error) { func (agent *jobAgent) read() (data []byte, err error) {
if len(agent.incoming) > 0 { if len(agent.in) > 0 {
// incoming queue is not empty // in queue is not empty
data = <-agent.incoming data = <-agent.in
} else { } else {
for { for {
buf := make([]byte, gearman.BUFFER_SIZE) buf := make([]byte, common.BUFFER_SIZE)
var n int var n int
if n, err = agent.conn.Read(buf); err != nil { if n, err = agent.conn.Read(buf); err != nil {
if err == io.EOF && n == 0 { if err == io.EOF && n == 0 {
@ -45,7 +51,7 @@ func (agent *jobAgent) read() (data []byte, err error) {
return return
} }
data = append(data, buf[0:n]...) data = append(data, buf[0:n]...)
if n < gearman.BUFFER_SIZE { if n < common.BUFFER_SIZE {
break break
} }
} }
@ -54,13 +60,13 @@ func (agent *jobAgent) read() (data []byte, err error) {
start := 0 start := 0
tl := len(data) tl := len(data)
for i := 0; i < tl; i++ { for i := 0; i < tl; i++ {
if string(data[start:start+4]) == gearman.RES_STR { if string(data[start:start+4]) == common.RES_STR {
l := int(gearman.BytesToUint32([4]byte{data[start+8], data[start+9], data[start+10], data[start+11]})) l := int(common.BytesToUint32([4]byte{data[start+8], data[start+9], data[start+10], data[start+11]}))
total := l + 12 total := l + 12
if total == tl { if total == tl {
return return
} else { } else {
agent.incoming <- data[total:] agent.in <- data[total:]
data = data[:total] data = data[:total]
return return
} }
@ -68,7 +74,7 @@ func (agent *jobAgent) read() (data []byte, err error) {
start++ start++
} }
} }
err = gearman.ErrInvalidData err = common.ErrInvalidData
return return
} }
@ -76,29 +82,29 @@ func (agent *jobAgent) read() (data []byte, err error) {
func (agent *jobAgent) Work() { func (agent *jobAgent) Work() {
noop := true noop := true
for agent.running { for agent.running {
// got noop msg and incoming queue is zero, grab job // got noop msg and in queue is zero, grab job
if noop && len(agent.incoming) == 0 { if noop && len(agent.in) == 0 {
agent.WriteJob(NewWorkerJob(gearman.REQ, gearman.GRAB_JOB, nil)) agent.WriteJob(newJob(common.REQ, common.GRAB_JOB, nil))
} }
rel, err := agent.read() rel, err := agent.read()
if err != nil { if err != nil {
agent.worker.err(err) agent.worker.err(err)
continue continue
} }
job, err := DecodeWorkerJob(rel) job, err := decodeJob(rel)
if err != nil { if err != nil {
agent.worker.err(err) agent.worker.err(err)
continue continue
} else { } else {
switch job.DataType { switch job.DataType {
case gearman.NOOP: case common.NOOP:
noop = true noop = true
case gearman.NO_JOB: case common.NO_JOB:
noop = false noop = false
agent.WriteJob(NewWorkerJob(gearman.REQ, gearman.PRE_SLEEP, nil)) agent.WriteJob(newJob(common.REQ, common.PRE_SLEEP, nil))
case gearman.ECHO_RES, gearman.JOB_ASSIGN_UNIQ, gearman.JOB_ASSIGN: case common.ECHO_RES, common.JOB_ASSIGN_UNIQ, common.JOB_ASSIGN:
job.agent = agent job.agent = agent
agent.worker.incoming <- job agent.worker.in <- job
} }
} }
} }
@ -106,7 +112,7 @@ func (agent *jobAgent) Work() {
} }
// Send a job to the job server. // Send a job to the job server.
func (agent *jobAgent) WriteJob(job *WorkerJob) (err error) { func (agent *jobAgent) WriteJob(job *Job) (err error) {
return agent.write(job.Encode()) return agent.write(job.Encode())
} }
@ -125,7 +131,7 @@ func (agent *jobAgent) write(buf []byte) (err error) {
// Close. // Close.
func (agent *jobAgent) Close() (err error) { func (agent *jobAgent) Close() (err error) {
agent.running = false agent.running = false
close(agent.incoming) close(agent.in)
err = agent.conn.Close() err = agent.conn.Close()
return return
} }

54
worker/workerjob.go → worker/job.go
View File

@ -5,12 +5,12 @@
package worker package worker
import ( import (
gearman "bitbucket.org/mikespook/gearman-go"
"strconv" "strconv"
"bitbucket.org/mikespook/gearman-go/common"
) )
// Worker side job // Worker side job
type WorkerJob struct { type Job struct {
Data []byte Data []byte
Handle, UniqueId string Handle, UniqueId string
agent *jobAgent agent *jobAgent
@ -18,70 +18,74 @@ type WorkerJob struct {
} }
// Create a new job // Create a new job
func NewWorkerJob(magiccode, datatype uint32, data []byte) (job *WorkerJob) { func newJob(magiccode, datatype uint32, data []byte) (job *Job) {
return &WorkerJob{magicCode: magiccode, return &Job{magicCode: magiccode,
DataType: datatype, DataType: datatype,
Data: data} Data: data}
} }
// Decode job from byte slice // Decode job from byte slice
func DecodeWorkerJob(data []byte) (job *WorkerJob, err error) { func decodeJob(data []byte) (job *Job, err error) {
if len(data) < 12 { if len(data) < 12 {
err = gearman.ErrInvalidData err = common.ErrInvalidData
return return
} }
datatype := gearman.BytesToUint32([4]byte{data[4], data[5], data[6], data[7]}) datatype := common.BytesToUint32([4]byte{data[4], data[5], data[6], data[7]})
l := gearman.BytesToUint32([4]byte{data[8], data[9], data[10], data[11]}) l := common.BytesToUint32([4]byte{data[8], data[9], data[10], data[11]})
if len(data[12:]) != int(l) { if len(data[12:]) != int(l) {
err = gearman.ErrInvalidData err = common.ErrInvalidData
return return
} }
data = data[12:] data = data[12:]
job = NewWorkerJob(gearman.RES, datatype, data) job = newJob(common.RES, datatype, data)
return return
} }
// Encode a job to byte slice // Encode a job to byte slice
func (job *WorkerJob) Encode() (data []byte) { func (job *Job) Encode() (data []byte) {
magiccode := gearman.Uint32ToBytes(job.magicCode) l := len(job.Data)
datatype := gearman.Uint32ToBytes(job.DataType) tl := l + 12
data = make([]byte, 0, 1024*64) if job.Handle != "" {
tl += len(job.Handle) + 1
}
data = make([]byte, 0, tl)
magiccode := common.Uint32ToBytes(job.magicCode)
datatype := common.Uint32ToBytes(job.DataType)
datalength := common.Uint32ToBytes(uint32(tl))
data = append(data, magiccode[:]...) data = append(data, magiccode[:]...)
data = append(data, datatype[:]...) data = append(data, datatype[:]...)
data = append(data, []byte{0, 0, 0, 0}...) data = append(data, datalength[:]...)
l := len(job.Data)
if job.Handle != "" { if job.Handle != "" {
data = append(data, []byte(job.Handle)...) data = append(data, []byte(job.Handle)...)
data = append(data, 0) data = append(data, 0)
l += len(job.Handle) + 1
} }
data = append(data, job.Data...) data = append(data, job.Data...)
datalength := gearman.Uint32ToBytes(uint32(l))
copy(data[8:12], datalength[:])
return return
} }
// Send some datas to client. // Send some datas to client.
// Using this in a job's executing. // Using this in a job's executing.
func (job *WorkerJob) UpdateData(data []byte, iswaring bool) (err error) { func (job *Job) UpdateData(data []byte, iswaring bool) (err error) {
result := append([]byte(job.Handle), 0) result := append([]byte(job.Handle), 0)
result = append(result, data...) result = append(result, data...)
var datatype uint32 var datatype uint32
if iswaring { if iswaring {
datatype = gearman.WORK_WARNING datatype = common.WORK_WARNING
} else { } else {
datatype = gearman.WORK_DATA datatype = common.WORK_DATA
} }
return job.agent.WriteJob(NewWorkerJob(gearman.REQ, datatype, result)) return job.agent.WriteJob(newJob(common.REQ, datatype, result))
} }
// Update status. // Update status.
// Tall client how many percent job has been executed. // Tall client how many percent job has been executed.
func (job *WorkerJob) UpdateStatus(numerator, denominator int) (err error) { func (job *Job) UpdateStatus(numerator, denominator int) (err error) {
n := []byte(strconv.Itoa(numerator)) n := []byte(strconv.Itoa(numerator))
d := []byte(strconv.Itoa(denominator)) d := []byte(strconv.Itoa(denominator))
result := append([]byte(job.Handle), 0) result := append([]byte(job.Handle), 0)
result = append(result, n...) result = append(result, n...)
result = append(result, d...) result = append(result, d...)
return job.agent.WriteJob(NewWorkerJob(gearman.REQ, gearman.WORK_STATUS, result)) return job.agent.WriteJob(newJob(common.REQ, common.WORK_STATUS, result))
} }

127
worker/worker.go
View File

@ -5,29 +5,26 @@
package worker package worker
import ( import (
gearman "bitbucket.org/mikespook/gearman-go"
"bytes" "bytes"
"sync" "bitbucket.org/mikespook/gearman-go/common"
) )
const ( const (
Unlimit = 0 Unlimited = 0
OneByOne = 1 OneByOne = 1
) )
// The definition of the callback function. // The definition of the callback function.
type JobFunction func(job *WorkerJob) ([]byte, error) type JobFunc func(job *Job) ([]byte, error)
// Map for added function. // Map for added function.
type JobFunctionMap map[string]JobFunction type JobFuncs map[string]JobFunc
// Error Function
type ErrFunc func(e error)
/* /*
Worker side api for gearman. Worker side api for gearman
usage: usage:
w = worker.New(worker.Unlimit) w = worker.New(worker.Unlimited)
w.AddFunction("foobar", foobar) w.AddFunction("foobar", foobar)
w.AddServer("127.0.0.1:4730") w.AddServer("127.0.0.1:4730")
w.Work() // Enter the worker's main loop w.Work() // Enter the worker's main loop
@ -35,51 +32,49 @@ usage:
The definition of the callback function 'foobar' should suit for the type 'JobFunction'. The definition of the callback function 'foobar' should suit for the type 'JobFunction'.
It looks like this: It looks like this:
func foobar(job *WorkerJob) (data []byte, err os.Error) { func foobar(job *Job) (data []byte, err os.Error) {
//sth. here //sth. here
//plaplapla... //plaplapla...
return return
} }
*/ */
type Worker struct { type Worker struct {
clients []*jobAgent agents []*jobAgent
functions JobFunctionMap funcs JobFuncs
in chan *Job
out chan *Job
running bool running bool
incoming chan *WorkerJob
mutex sync.Mutex
limit chan bool limit chan bool
JobQueue chan *WorkerJob Id string
// assign a ErrFunc to handle errors // assign a ErrFunc to handle errors
// Must assign befor AddServer ErrHandler common.ErrorHandler
ErrFunc ErrFunc
} }
// Get a new worker // Get a new worker
func New(l int) (worker *Worker) { func New(l int) (worker *Worker) {
worker = &Worker{ worker = &Worker{
// job server list agents: make([]*jobAgent, 0),
clients: make([]*jobAgent, 0, gearman.WORKER_SERVER_CAP),
// function list
functions: make(JobFunctionMap), functions: make(JobFunctionMap),
incoming: make(chan *WorkerJob, gearman.QUEUE_CAP),
JobQueue: make(chan *WorkerJob, gearman.QUEUE_CAP), in: make(chan *Job, common.QUEUE_SIZE),
out: make(chan *Job, common.QUEUE_SIZE),
running: true, running: true,
} }
if l != Unlimit { if l != Unlimited {
worker.limit = make(chan bool, l) worker.limit = make(chan bool, l)
for i := 0; i < l; i ++ { for i := 0; i < l; i ++ {
worker.limit <- true worker.limit <- true
} }
} }
go worker.outLoop()
return return
} }
// //
func (worker *Worker)err(e error) { func (worker *Worker)err(e error) {
if worker.ErrFunc != nil { if worker.ErrHandler != nil {
worker.ErrFunc(e) worker.ErrHandler(e)
} }
} }
@ -90,7 +85,7 @@ func (worker *Worker) AddServer(addr string) (err error) {
defer worker.mutex.Unlock() defer worker.mutex.Unlock()
if len(worker.clients) == cap(worker.clients) { if len(worker.clients) == cap(worker.clients) {
return gearman.ErrOutOfCap return common.ErrOutOfCap
} }
// Create a new job server's client as a agent of server // Create a new job server's client as a agent of server
@ -109,9 +104,9 @@ func (worker *Worker) AddServer(addr string) (err error) {
// Plz added job servers first, then functions. // Plz added job servers first, then functions.
// The API will tell every connected job server that 'I can do this' // The API will tell every connected job server that 'I can do this'
func (worker *Worker) AddFunction(funcname string, func (worker *Worker) AddFunction(funcname string,
f JobFunction, timeout uint32) (err error) { f JobFunc, timeout uint32) (err error) {
if len(worker.clients) < 1 { if len(worker.clients) < 1 {
return gearman.ErrNotConn return common.ErrNotConn
} }
worker.mutex.Lock() worker.mutex.Lock()
defer worker.mutex.Unlock() defer worker.mutex.Unlock()
@ -120,15 +115,15 @@ func (worker *Worker) AddFunction(funcname string,
var datatype uint32 var datatype uint32
var data []byte var data []byte
if timeout == 0 { if timeout == 0 {
datatype = gearman.CAN_DO datatype = common.CAN_DO
data = []byte(funcname) data = []byte(funcname)
} else { } else {
datatype = gearman.CAN_DO_TIMEOUT datatype = common.CAN_DO_TIMEOUT
data = []byte(funcname + "\x00") data = []byte(funcname + "\x00")
t := gearman.Uint32ToBytes(timeout) t := common.Uint32ToBytes(timeout)
data = append(data, t[:]...) data = append(data, t[:]...)
} }
job := NewWorkerJob(gearman.REQ, datatype, data) job := newJob(common.REQ, datatype, data)
worker.WriteJob(job) worker.WriteJob(job)
return return
} }
@ -140,10 +135,10 @@ func (worker *Worker) RemoveFunction(funcname string) (err error) {
defer worker.mutex.Unlock() defer worker.mutex.Unlock()
if worker.functions[funcname] == nil { if worker.functions[funcname] == nil {
return gearman.ErrFuncNotFound return common.ErrFuncNotFound
} }
delete(worker.functions, funcname) delete(worker.functions, funcname)
job := NewWorkerJob(gearman.REQ, gearman.CANT_DO, []byte(funcname)) job := newJob(common.REQ, common.CANT_DO, []byte(funcname))
worker.WriteJob(job) worker.WriteJob(job)
return return
} }
@ -153,19 +148,19 @@ func (worker *Worker) Work() {
for _, v := range worker.clients { for _, v := range worker.clients {
go v.Work() go v.Work()
} }
for worker.running || len(worker.incoming) > 0{ for worker.running || len(worker.in) > 0{
select { select {
case job := <-worker.incoming: case job := <-worker.in:
if job == nil { if job == nil {
break break
} }
switch job.DataType { switch job.DataType {
case gearman.NO_JOB: case common.NO_JOB:
// do nothing // do nothing
case gearman.ERROR: case common.ERROR:
_, err := gearman.GetError(job.Data) _, err := common.GetError(job.Data)
worker.err(err) worker.err(err)
case gearman.JOB_ASSIGN, gearman.JOB_ASSIGN_UNIQ: case common.JOB_ASSIGN, common.JOB_ASSIGN_UNIQ:
go func() { go func() {
if err := worker.exec(job); err != nil { if err := worker.exec(job); err != nil {
worker.err(err) worker.err(err)
@ -176,23 +171,7 @@ func (worker *Worker) Work() {
} }
} }
} }
close(worker.incoming) close(worker.in)
}
// Get the last job in queue.
// If there are more than one job in the queue,
// the last one will be returned,
// the others will be lost.
func (worker *Worker) LastJob() (job *WorkerJob) {
if l := len(worker.JobQueue); l != 1 {
if l == 0 {
return
}
for i := 0; i < l-1; i++ {
<-worker.JobQueue
}
}
return <-worker.JobQueue
} }
// Close. // Close.
@ -207,26 +186,26 @@ func (worker *Worker) Close() (err error) {
// Write a job to job server. // Write a job to job server.
// Here, the job's mean is not the oraginal mean. // Here, the job's mean is not the oraginal mean.
// Just looks like a network package for job's result or tell job server, there was a fail. // Just looks like a network package for job's result or tell job server, there was a fail.
func (worker *Worker) WriteJob(job *WorkerJob) (err error) { func (worker *Worker) Broadcast(job *Job) {
e := make(chan error) for _, v := range worker.agents {
for _, v := range worker.clients {
go func() { go func() {
e <- v.WriteJob(job) if err := v.WriteJob(job); err != nil {
worker.err(err)
}
}() }()
} }
return <-e
} }
// Send a something out, get the samething back. // Send a something out, get the samething back.
func (worker *Worker) Echo(data []byte) (err error) { func (worker *Worker) Echo(data []byte) (err error) {
job := NewWorkerJob(gearman.REQ, gearman.ECHO_REQ, data) job := newJob(common.REQ, common.ECHO_REQ, data)
return worker.WriteJob(job) return worker.WriteJob(job)
} }
// Remove all of functions. // Remove all of functions.
// Both from the worker or job servers. // Both from the worker or job servers.
func (worker *Worker) Reset() (err error) { func (worker *Worker) Reset() (err error) {
job := NewWorkerJob(gearman.REQ, gearman.RESET_ABILITIES, nil) job := newJob(common.REQ, common.RESET_ABILITIES, nil)
err = worker.WriteJob(job) err = worker.WriteJob(job)
worker.functions = make(JobFunctionMap) worker.functions = make(JobFunctionMap)
return return
@ -234,12 +213,12 @@ func (worker *Worker) Reset() (err error) {
// Set the worker's unique id. // Set the worker's unique id.
func (worker *Worker) SetId(id string) (err error) { func (worker *Worker) SetId(id string) (err error) {
job := NewWorkerJob(gearman.REQ, gearman.SET_CLIENT_ID, []byte(id)) job := newJob(common.REQ, common.SET_CLIENT_ID, []byte(id))
return worker.WriteJob(job) return worker.WriteJob(job)
} }
// Execute the job. And send back the result. // Execute the job. And send back the result.
func (worker *Worker) exec(job *WorkerJob) (err error) { func (worker *Worker) exec(job *Job) (err error) {
if worker.limit != nil { if worker.limit != nil {
<-worker.limit <-worker.limit
defer func() { defer func() {
@ -247,7 +226,7 @@ func (worker *Worker) exec(job *WorkerJob) (err error) {
}() }()
} }
var limit int var limit int
if job.DataType == gearman.JOB_ASSIGN { if job.DataType == common.JOB_ASSIGN {
limit = 3 limit = 3
} else { } else {
limit = 4 limit = 4
@ -255,7 +234,7 @@ func (worker *Worker) exec(job *WorkerJob) (err error) {
jobdata := bytes.SplitN(job.Data, []byte{'\x00'}, limit) jobdata := bytes.SplitN(job.Data, []byte{'\x00'}, limit)
job.Handle = string(jobdata[0]) job.Handle = string(jobdata[0])
funcname := string(jobdata[1]) funcname := string(jobdata[1])
if job.DataType == gearman.JOB_ASSIGN { if job.DataType == common.JOB_ASSIGN {
job.Data = jobdata[2] job.Data = jobdata[2]
} else { } else {
job.UniqueId = string(jobdata[2]) job.UniqueId = string(jobdata[2])
@ -263,21 +242,21 @@ func (worker *Worker) exec(job *WorkerJob) (err error) {
} }
f, ok := worker.functions[funcname] f, ok := worker.functions[funcname]
if !ok { if !ok {
return gearman.ErrFuncNotFound return common.ErrFuncNotFound
} }
result, err := f(job) result, err := f(job)
var datatype uint32 var datatype uint32
if err == nil { if err == nil {
datatype = gearman.WORK_COMPLETE datatype = common.WORK_COMPLETE
} else { } else {
if result == nil { if result == nil {
datatype = gearman.WORK_FAIL datatype = common.WORK_FAIL
} else { } else {
datatype = gearman.WORK_EXCEPTION datatype = common.WORK_EXCEPTION
} }
} }
job.magicCode = gearman.REQ job.magicCode = common.REQ
job.DataType = datatype job.DataType = datatype
job.Data = result job.Data = result