The worker's protocol can work now. See example/worker.go
--HG-- rename : src/pkg/gearman/job.go => src/pkg/gearman/worker/job.go rename : src/pkg/gearman/jobclient.go => src/pkg/gearman/worker/jobclient.go
This commit is contained in:
mikespook
parent
ed5d1951ef
commit
50411ee1a9
@ -7,8 +7,8 @@ include $(GOROOT)/src/Make.inc
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TARG=gearman
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GOFILES=\
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gearman.go\
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job.go\
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jobclient.go\
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worker/job.go\
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worker/jobclient.go\
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worker.go\
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# client.go\
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@ -4,6 +4,34 @@ const (
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TCP = "tcp4"
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WORKER_SERVER_CAP = 32
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WORKER_FUNCTION_CAP = 512
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// \x00REQ
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REQ = 5391697
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// \x00RES
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RES = 5391699
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CAN_DO = 1
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CANT_DO = 2
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RESET_ABILITIES = 3
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PRE_SLEEP = 4
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NOOP = 6
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GRAB_JOB = 9
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NO_JOB = 10
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JOB_ASSIGN = 11
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WORK_STATUS = 12
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WORK_COMPLETE = 13
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WORK_FAIL = 14
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ECHO_REQ = 16
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ECHO_RES = 17
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ERROR = 19
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SET_CLIENT_ID = 22
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CAN_DO_TIMEOUT = 23
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WORK_EXCEPTION = 25
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WORK_DATA = 28
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WORK_WARNING = 29
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GRAB_JOB_UNIQ = 30
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JOB_ASSIGN_UNIQ = 31
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)
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@ -2,6 +2,7 @@ package gearman
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import (
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"testing"
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"os"
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)
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var worker *Worker
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@ -16,21 +17,22 @@ func TestAddServer(t *testing.T) {
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t.Error(err)
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}
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if l := len(worker.servers); l != 1 {
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t.Log(worker.servers)
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if l := len(worker.clients); l != 1 {
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t.Log(worker.clients)
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t.Error("The length of server list should be 1.")
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}
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}
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func TestAddFunction(t *testing.T) {
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f := func(job *Job) []byte {
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return nil
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func foobar(job *Job) ([]byte, os.Error) {
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return nil, nil
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}
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if err := worker.AddFunction("foobar", f); err != nil {
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func TestAddFunction(t *testing.T) {
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if err := worker.AddFunction("foobar", foobar, 0); err != nil {
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t.Error(err)
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}
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if err := worker.AddFunction("timeout", f); err != nil {
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if err := worker.AddFunction("timeout", foobar, 5); err != nil {
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t.Error(err)
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}
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if l := len(worker.functions); l != 2 {
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@ -40,19 +42,31 @@ func TestAddFunction(t *testing.T) {
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}
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func TestEcho(t * testing.T) {
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go worker.Work()
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if err := worker.Echo([]byte("Hello World")); err != nil {
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t.Error(err)
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}
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}
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/*
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func TestResult(t *testing.T) {
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if job := worker.Result(); job == nil {
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//t.Error("Nothing in result.")
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t.Error("Nothing in result.")
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} else {
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t.Log(job)
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}
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}
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*/
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func TestRemoveFunction(t * testing.T) {
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if err := worker.RemoveFunction("foobar"); err != nil {
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t.Error(err)
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}
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}
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func TestReset(t * testing.T) {
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if err := worker.Reset(); err != nil {
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t.Error(err)
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}
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}
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func TestClose(t *testing.T) {
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if err := worker.Close(); err != nil {
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@ -1,79 +0,0 @@
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package gearman
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import (
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"os"
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)
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const (
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// \x00REQ
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REQ = 5391697
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// \x00RES
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RES = 5391699
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CAN_DO = 1
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CANT_DO = 2
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ECHO_REQ = 16
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ECHO_RES = 17
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ERROR = 19
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CAN_DO_TIMEOUT = 23
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)
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type Job struct {
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client *JobClient
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Data []byte
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MagicCode, DataType uint32
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}
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func ByteToUint32(buf [4]byte) uint32 {
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return uint32(buf[0]) << 24 +
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uint32(buf[1]) << 16 +
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uint32(buf[2]) << 8 +
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uint32(buf[3])
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}
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func Uint32ToByte(i uint32) (data [4]byte) {
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data[0] = byte((i >> 24) & 0xff)
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data[1] = byte((i >> 16) & 0xff)
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data[2] = byte((i >> 8) & 0xff)
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data[3] = byte(i & 0xff)
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return
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}
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func NewJob(server *JobClient, magiccode, datatype uint32, data []byte) (job *Job) {
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return &Job{client: server,
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MagicCode:magiccode,
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DataType: datatype,
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Data:data}
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}
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func DecodeJob(server *JobClient, data []byte) (job *Job, err os.Error) {
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if len(data) < 12 {
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return nil, os.NewError("Data length is too small.")
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}
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datatype := ByteToUint32([4]byte{data[4], data[5], data[6], data[7]})
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l := ByteToUint32([4]byte{data[8], data[9], data[10], data[11]})
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if len(data[12:]) != int(l) {
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return nil, os.NewError("Invalid data length.")
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}
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switch(ByteToUint32([4]byte{data[4], data[5], data[6], data[7]})) {
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case ECHO_RES:
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data = data[12:]
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}
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return NewJob(server, REQ, datatype, data), err
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}
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func (job *Job) Encode() (data []byte) {
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magiccode := Uint32ToByte(job.MagicCode)
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datatype := Uint32ToByte(job.DataType)
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l := len(job.Data)
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datalength := Uint32ToByte(uint32(l))
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data = make([]byte, 12 + l)
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copy(data[:4], magiccode[:])
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copy(data[4:8], datatype[:])
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copy(data[8:12], datalength[:])
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copy(data[12:], job.Data)
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return
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}
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@ -1,68 +0,0 @@
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package gearman
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import (
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"net"
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"os"
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// "log"
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)
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type JobClient struct {
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conn net.Conn
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incoming chan *Job
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running bool
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}
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func NewJobClient(addr string, incoming chan *Job) (jobclient *JobClient, err os.Error) {
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conn, err := net.Dial(TCP, addr)
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if err != nil {
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return nil, err
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}
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jobclient = &JobClient{conn: conn, incoming: incoming, running:true}
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return jobclient, err
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}
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func (server *JobClient) Work() (err os.Error) {
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for server.running {
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var rel []byte
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for {
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buf := make([]byte, 2048)
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n, err := server.conn.Read(buf)
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if err != nil {
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if err == os.EOF && n == 0 {
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break
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}
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return err
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}
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rel = append(rel, buf[0: n] ...)
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break
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}
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job, err := DecodeJob(server, rel)
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if err != nil {
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return err
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} else {
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server.incoming <- job
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}
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}
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return
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}
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func (server *JobClient) WriteJob(job * Job) (err os.Error) {
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return server.Write(job.Encode())
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}
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func (server *JobClient) Write(buf []byte) (err os.Error) {
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var n int
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for i := 0; i < len(buf); i += n {
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n, err = server.conn.Write(buf[i:])
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if err != nil {
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return err
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}
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}
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return
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}
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func (server *JobClient) Close() (err os.Error) {
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server.running = false
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err = server.conn.Close()
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return
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}
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@ -6,24 +6,29 @@ import(
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"log"
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)
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type JobFunction func(job *Job) []byte
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type JobFunction func(job *Job) ([]byte, os.Error)
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type JobFunctionMap map[string]JobFunction
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type Worker struct {
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servers []*JobClient
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functions map[string]JobFunction
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clients []*jobClient
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functions JobFunctionMap
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running bool
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incoming chan *Job
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mutex sync.Mutex
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queue chan *Job
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Queue chan *Job
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}
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func NewWorker() (worker *Worker) {
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worker = &Worker{servers:make([]*JobClient, 0, WORKER_SERVER_CAP),
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functions: make(map[string]JobFunction),
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worker = &Worker{
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// job server list
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clients:make([]*jobClient, 0, WORKER_SERVER_CAP),
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// function list
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functions: make(JobFunctionMap),
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incoming: make(chan *Job, 512),
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queue: make(chan *Job, 512),
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running: true,}
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Queue: make(chan *Job, 512),
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running: true,
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}
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return worker
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}
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@ -33,43 +38,69 @@ func (worker * Worker) AddServer(addr string) (err os.Error) {
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worker.mutex.Lock()
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defer worker.mutex.Unlock()
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if len(worker.servers) == cap(worker.servers) {
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return os.NewError("There were too many servers.")
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if len(worker.clients) == cap(worker.clients) {
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return os.NewError("There were too many clients.")
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}
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// Create a new job server's client as a agent of server
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server, err := NewJobClient(addr, worker.incoming)
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server, err := newJobClient(addr, worker.incoming)
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if err != nil {
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return err
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}
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n := len(worker.servers)
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worker.servers = worker.servers[0: n + 1]
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worker.servers[n] = server
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n := len(worker.clients)
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worker.clients = worker.clients[0: n + 1]
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worker.clients[n] = server
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return
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}
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// add function
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func (worker * Worker) AddFunction(funcname string,
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f JobFunction) (err os.Error) {
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worker.mutex.Lock()
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defer worker.mutex.Unlock()
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f JobFunction, timeout uint32) (err os.Error) {
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if f == nil {
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return os.NewError("Job function should not be nil.")
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}
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if len(worker.clients) < 1 {
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return os.NewError("Did not connect to Job Server.")
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}
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worker.mutex.Lock()
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defer worker.mutex.Unlock()
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worker.functions[funcname] = f
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var datatype uint32
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var data []byte
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if timeout == 0 {
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datatype = CAN_DO
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data = []byte(funcname)
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} else {
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datatype = CAN_DO_TIMEOUT
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data = []byte(funcname + "\x00")
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t := uint32ToByte(timeout)
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data = append(data, t[:] ...)
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}
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job := NewJob(REQ, datatype, data)
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worker.WriteJob(job)
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return
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}
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// work
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func (worker * Worker) Work() {
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for k, _ := range worker.functions {
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job := NewJob(nil, REQ, CAN_DO, []byte(k))
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worker.Write(job)
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// remove function
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func (worker * Worker) RemoveFunction(funcname string) (err os.Error) {
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worker.mutex.Lock()
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defer worker.mutex.Unlock()
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if worker.functions[funcname] == nil {
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return os.NewError("No function named: " + funcname)
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}
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worker.functions[funcname] = nil, false
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job := NewJob(REQ, CANT_DO, []byte(funcname))
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worker.WriteJob(job)
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return
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}
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for _, v := range worker.servers {
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// work
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func (worker * Worker) Work() {
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for _, v := range worker.clients {
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go v.Work()
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}
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for worker.running {
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@ -78,47 +109,51 @@ func (worker * Worker) Work() {
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if job == nil {
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break
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}
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switch job.DataType {
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switch job.dataType {
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case NO_JOB:
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// do nothing
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log.Println(job)
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case ERROR:
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log.Panicln(string(job.Data))
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default:
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if err := worker.Exec(job); err != nil {
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log.Println(string(job.Data))
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case JOB_ASSIGN, JOB_ASSIGN_UNIQ:
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if err := worker.exec(job); err != nil {
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log.Panicln(err)
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}
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continue
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default:
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worker.Queue <- job
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}
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worker.queue <- job
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}
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}
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}
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func (worker * Worker) Result() (job *Job) {
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if l := len(worker.queue); l != 1 {
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if l := len(worker.Queue); l != 1 {
|
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if l == 0 {
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return
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}
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for i := 0; i < l - 1; i ++ {
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<-worker.queue
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<-worker.Queue
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}
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}
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return <-worker.queue
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return <-worker.Queue
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}
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// Close
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// should used as defer
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func (worker * Worker) Close() (err os.Error){
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worker.running = false
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for _, v := range worker.servers {
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for _, v := range worker.clients {
|
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err = v.Close()
|
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}
|
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close(worker.incoming)
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return err
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}
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|
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func (worker * Worker) Write(job *Job) (err os.Error) {
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func (worker * Worker) WriteJob(job *Job) (err os.Error) {
|
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e := make(chan os.Error)
|
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for _, v := range worker.servers {
|
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for _, v := range worker.clients {
|
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go func() {
|
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job.client = v
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e <- v.WriteJob(job)
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}()
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}
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@ -127,11 +162,61 @@ func (worker * Worker) Write(job *Job) (err os.Error) {
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|
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// Echo
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func (worker * Worker) Echo(data []byte) (err os.Error) {
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job := NewJob(nil, REQ, ECHO_REQ, data)
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return worker.Write(job)
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job := NewJob(REQ, ECHO_REQ, data)
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return worker.WriteJob(job)
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}
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|
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// Reset
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func (worker * Worker) Reset() (err os.Error){
|
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job := NewJob(REQ, RESET_ABILITIES, nil)
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return worker.WriteJob(job)
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}
|
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|
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// SetId
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func (worker * Worker) SetId(id string) (err os.Error) {
|
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job := NewJob(REQ, SET_CLIENT_ID, []byte(id))
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return worker.WriteJob(job)
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}
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|
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// Exec
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func (worker * Worker) Exec(job *Job) (err os.Error) {
|
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func (worker * Worker) exec(job *Job) (err os.Error) {
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jobdata := splitByteArray(job.Data, '\x00')
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job.Handle = string(jobdata[0])
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funcname := string(jobdata[1])
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if job.dataType == JOB_ASSIGN {
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job.Data = jobdata[2]
|
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} else {
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job.UniqueId = string(jobdata[2])
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job.Data = jobdata[3]
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}
|
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result, err := worker.functions[funcname](job)
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var datatype uint32
|
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if err == nil {
|
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datatype = WORK_COMPLETE
|
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} else{
|
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if result == nil {
|
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datatype = WORK_FAIL
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} else {
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datatype = WORK_EXCEPTION
|
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}
|
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}
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worker.WriteJob(NewJob(REQ, datatype, result))
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return
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}
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|
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func splitByteArray(slice []byte, spot byte) (data [][]byte){
|
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data = make([][]byte, 0, 10)
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log.Println(data)
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start, end := 0, 0
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for i, v := range slice {
|
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if v == spot {
|
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if start != end {
|
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data = append(data, slice[start:end])
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}
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start, end = i, i
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} else {
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end ++
|
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}
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}
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return
|
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}
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|
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88
src/pkg/gearman/worker/job.go
Normal file
88
src/pkg/gearman/worker/job.go
Normal file
@ -0,0 +1,88 @@
|
||||
package gearman
|
||||
|
||||
import (
|
||||
"os"
|
||||
)
|
||||
|
||||
type Job struct {
|
||||
Data []byte
|
||||
Handle string
|
||||
UniqueId string
|
||||
client *jobClient
|
||||
magicCode, dataType uint32
|
||||
}
|
||||
|
||||
func byteToUint32(buf [4]byte) uint32 {
|
||||
return uint32(buf[0]) << 24 +
|
||||
uint32(buf[1]) << 16 +
|
||||
uint32(buf[2]) << 8 +
|
||||
uint32(buf[3])
|
||||
}
|
||||
|
||||
func uint32ToByte(i uint32) (data [4]byte) {
|
||||
data[0] = byte((i >> 24) & 0xff)
|
||||
data[1] = byte((i >> 16) & 0xff)
|
||||
data[2] = byte((i >> 8) & 0xff)
|
||||
data[3] = byte(i & 0xff)
|
||||
return
|
||||
}
|
||||
|
||||
func NewJob(magiccode, datatype uint32, data []byte) (job *Job) {
|
||||
return &Job{magicCode:magiccode,
|
||||
dataType: datatype,
|
||||
Data:data}
|
||||
}
|
||||
|
||||
func DecodeJob(data []byte) (job *Job, err os.Error) {
|
||||
if len(data) < 12 {
|
||||
return nil, os.NewError("Data length is too small.")
|
||||
}
|
||||
datatype := byteToUint32([4]byte{data[4], data[5], data[6], data[7]})
|
||||
l := byteToUint32([4]byte{data[8], data[9], data[10], data[11]})
|
||||
if len(data[12:]) != int(l) {
|
||||
return nil, os.NewError("Invalid data length.")
|
||||
}
|
||||
switch(byteToUint32([4]byte{data[4], data[5], data[6], data[7]})) {
|
||||
case ECHO_RES:
|
||||
data = data[12:]
|
||||
}
|
||||
return NewJob(REQ, datatype, data), err
|
||||
}
|
||||
|
||||
func (job *Job) Encode() (data []byte) {
|
||||
magiccode := uint32ToByte(job.magicCode)
|
||||
datatype := uint32ToByte(job.dataType)
|
||||
l := len(job.Data)
|
||||
datalength := uint32ToByte(uint32(l))
|
||||
data = make([]byte, 12 + l)
|
||||
copy(data[:4], magiccode[:])
|
||||
copy(data[4:8], datatype[:])
|
||||
copy(data[8:12], datalength[:])
|
||||
copy(data[12:], job.Data)
|
||||
return
|
||||
}
|
||||
|
||||
// update data
|
||||
func (job * Job) UpdateData(data []byte, iswaring bool) (err os.Error) {
|
||||
result := append([]byte(job.Handle), 0)
|
||||
result = append(result, data ...)
|
||||
var datatype uint32
|
||||
if iswaring {
|
||||
datatype = WORK_WARNING
|
||||
} else {
|
||||
datatype = WORK_DATA
|
||||
}
|
||||
return job.client.WriteJob(NewJob(REQ, datatype, result))
|
||||
}
|
||||
|
||||
// update status
|
||||
func (job * Job) UpdateStatus(numerator, denominator uint32) (err os.Error) {
|
||||
n := uint32ToByte(numerator)
|
||||
d := uint32ToByte(denominator)
|
||||
result := append([]byte(job.Handle), 0)
|
||||
result = append(result, n[:] ...)
|
||||
result = append(result, d[:] ...)
|
||||
return job.client.WriteJob(NewJob(REQ, WORK_STATUS, result))
|
||||
}
|
||||
|
||||
|
||||
82
src/pkg/gearman/worker/jobclient.go
Normal file
82
src/pkg/gearman/worker/jobclient.go
Normal file
@ -0,0 +1,82 @@
|
||||
package gearman
|
||||
|
||||
import (
|
||||
"net"
|
||||
"os"
|
||||
// "log"
|
||||
)
|
||||
|
||||
type jobClient struct {
|
||||
conn net.Conn
|
||||
incoming chan *Job
|
||||
running bool
|
||||
}
|
||||
|
||||
func newJobClient(addr string, incoming chan *Job) (jobclient *jobClient, err os.Error) {
|
||||
conn, err := net.Dial(TCP, addr)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
jobclient = &jobClient{conn:conn, incoming: incoming, running:true}
|
||||
return jobclient, err
|
||||
}
|
||||
|
||||
func (client *jobClient) Work() (err os.Error) {
|
||||
noop := true
|
||||
for client.running {
|
||||
// grab job
|
||||
if noop {
|
||||
client.WriteJob(NewJob(REQ, GRAB_JOB, nil))
|
||||
}
|
||||
var rel []byte
|
||||
for {
|
||||
buf := make([]byte, 2048)
|
||||
n, err := client.conn.Read(buf)
|
||||
if err != nil {
|
||||
if err == os.EOF && n == 0 {
|
||||
break
|
||||
}
|
||||
return err
|
||||
}
|
||||
rel = append(rel, buf[0: n] ...)
|
||||
break
|
||||
}
|
||||
job, err := DecodeJob(rel)
|
||||
if err != nil {
|
||||
return err
|
||||
} else {
|
||||
switch(job.dataType) {
|
||||
case NOOP:
|
||||
noop = true
|
||||
case NO_JOB:
|
||||
noop = false
|
||||
client.WriteJob(NewJob(REQ, PRE_SLEEP, nil))
|
||||
case ECHO_RES, JOB_ASSIGN_UNIQ, JOB_ASSIGN:
|
||||
job.client = client
|
||||
client.incoming <- job
|
||||
}
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func (client *jobClient) WriteJob(job * Job) (err os.Error) {
|
||||
return client.Write(job.Encode())
|
||||
}
|
||||
|
||||
func (client *jobClient) Write(buf []byte) (err os.Error) {
|
||||
var n int
|
||||
for i := 0; i < len(buf); i += n {
|
||||
n, err = client.conn.Write(buf[i:])
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func (client *jobClient) Close() (err os.Error) {
|
||||
client.running = false
|
||||
err = client.conn.Close()
|
||||
return
|
||||
}
|
||||
@ -1,17 +0,0 @@
|
||||
# Copyright 2009 The Go Authors. All rights reserved.
|
||||
# Use of this source code is governed by a BSD-style
|
||||
# license that can be found in the LICENSE file.
|
||||
|
||||
include $(GOROOT)/src/Make.inc
|
||||
|
||||
TARG=client
|
||||
GOFILES=\
|
||||
client.go\
|
||||
|
||||
CLEANFILES+=client
|
||||
|
||||
include $(GOROOT)/src/Make.pkg
|
||||
|
||||
%: install %.go
|
||||
$(GC) $*.go
|
||||
$(LD) -o $@ $*.$O
|
||||
@ -1,74 +0,0 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"net"
|
||||
"log"
|
||||
"fmt"
|
||||
)
|
||||
|
||||
type Client struct {
|
||||
c * net.TCPConn
|
||||
w chan []byte
|
||||
r chan []byte
|
||||
}
|
||||
|
||||
func NewClient() * Client {
|
||||
client := new(Client)
|
||||
wch := make(chan []byte, 2048)
|
||||
rch := make(chan []byte, 2048)
|
||||
client.w = wch
|
||||
client.r = rch
|
||||
addr, err := net.ResolveTCPAddr("127.0.0.1:4730")
|
||||
if err != nil {
|
||||
log.Panic(err.String())
|
||||
}
|
||||
c, err := net.DialTCP("tcp", nil, addr)
|
||||
client.c = c
|
||||
if err != nil {
|
||||
log.Panic(err.String())
|
||||
}
|
||||
go client.ReadLoop()
|
||||
go client.WriteLoop()
|
||||
return client
|
||||
}
|
||||
|
||||
func (client * Client) ReadLoop() {
|
||||
for {
|
||||
buf := make([]byte, 2048)
|
||||
_, err := client.c.Read(buf)
|
||||
if err != nil {
|
||||
client.c.Close()
|
||||
break;
|
||||
}
|
||||
client.r <- buf
|
||||
}
|
||||
}
|
||||
|
||||
func (client * Client) WriteLoop() {
|
||||
for {
|
||||
select {
|
||||
case buf := <- client.w:
|
||||
client.c.Write(buf)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (client * Client) Write(data []byte) {
|
||||
client.w <- data
|
||||
}
|
||||
|
||||
func (client * Client) Read() []byte{
|
||||
var buf []byte
|
||||
select {
|
||||
case buf = <- client.r:
|
||||
}
|
||||
return buf
|
||||
}
|
||||
|
||||
func main() {
|
||||
client := NewClient()
|
||||
client.Write([]byte("TEST\r\n"))
|
||||
for {
|
||||
fmt.Println(client.Read())
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user