yuxh/gearman-go
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processed ERROR package

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This commit is contained in:
Xing Xing 2013-08-30 11:20:51 +08:00
parent 4997e30a77
commit 358c8c4af0
10 changed files with 163 additions and 131 deletions
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13
README.md
View File

@ -38,7 +38,7 @@ Usage
## Client
c, err := client.New("127.0.0.1:4730")
c, err := client.New("tcp4", "127.0.0.1:4730")
// ...
defer c.Close()
data := []byte("Hello\x00 world")
@ -52,6 +52,17 @@ Usage
handle := c.Do("ToUpper", data, client.JOB_NORMAL, jobHandler)
// ...
Branches
========
Version 0.x means: _It is far far away from stable._
__Use at your own risk!__
* 0.1-testing Old API and some known issues, eg. [issue-14](https://github.com/mikespook/gearman-go/issues/14)
* 0.2-dev Refactoring a lot of things
* master current usable version
Authors
=======

72
client/client.go
View File

@ -6,10 +6,10 @@
package client
import (
"github.com/mikespook/golib/idgen"
"io"
"net"
"sync"
"github.com/mikespook/golib/idgen"
)
/*
@ -21,15 +21,15 @@ handle := c.Do("foobar", []byte("data here"), JOB_LOW | JOB_BG)
*/
type Client struct {
net, addr string
respHandler map[string]ResponseHandler
innerHandler map[string]ResponseHandler
in chan []byte
isConn bool
conn net.Conn
mutex sync.RWMutex
ErrorHandler ErrorHandler
net, addr, lastcall string
respHandler map[string]ResponseHandler
innerHandler map[string]ResponseHandler
in chan []byte
isConn bool
conn net.Conn
mutex sync.RWMutex
ErrorHandler ErrorHandler
IdGen idgen.IdGen
}
@ -39,12 +39,12 @@ type Client struct {
// client, err := client.New("127.0.0.1:4730")
func New(net, addr string) (client *Client, err error) {
client = &Client{
net: net,
addr: addr,
respHandler: make(map[string]ResponseHandler, QUEUE_SIZE),
net: net,
addr: addr,
respHandler: make(map[string]ResponseHandler, QUEUE_SIZE),
innerHandler: make(map[string]ResponseHandler, QUEUE_SIZE),
in: make(chan []byte, QUEUE_SIZE),
IdGen: idgen.NewObjectId(),
in: make(chan []byte, QUEUE_SIZE),
IdGen: idgen.NewObjectId(),
}
if err = client.connect(); err != nil {
return
@ -126,10 +126,10 @@ func (client *Client) processLoop() {
var err error
var data, leftdata []byte
for data = range client.in {
l = len(data)
if len(leftdata) > 0 { // some data left for processing
data = append(leftdata, data...)
}
l = len(data)
if l < MIN_PACKET_LEN { // not enough data
leftdata = data
continue
@ -138,13 +138,21 @@ func (client *Client) processLoop() {
client.err(err)
continue
}
leftdata = nil
switch resp.DataType {
case ERROR:
if client.lastcall != "" {
client.handleInner(client.lastcall, resp)
client.lastcall = ""
} else {
client.err(GetError(resp.Data))
}
case STATUS_RES:
client.handleInner("status-" + resp.Handle, resp)
client.handleInner("s"+resp.Handle, resp)
case JOB_CREATED:
client.handleInner("created", resp)
client.handleInner("c", resp)
case ECHO_RES:
client.handleInner("echo", resp)
client.handleInner("e", resp)
case WORK_DATA, WORK_WARNING, WORK_STATUS, WORK_COMPLETE,
WORK_FAIL, WORK_EXCEPTION:
client.handleResponse(resp.Handle, resp)
@ -182,16 +190,22 @@ func (client *Client) handleInner(key string, resp *Response) {
// Internal do
func (client *Client) do(funcname string, data []byte,
flag uint32) (handle string) {
flag uint32) (handle string, err error) {
id := client.IdGen.Id().(string)
req := getJob(funcname, id, data)
req := getJob(id, []byte(funcname), data)
req.DataType = flag
client.write(req)
var wg sync.WaitGroup
wg.Add(1)
client.mutex.RLock()
client.innerHandler["created"] = ResponseHandler(func(resp *Response) {
client.lastcall = "c"
client.innerHandler["c"] = ResponseHandler(func(resp *Response) {
defer wg.Done()
defer client.mutex.RUnlock()
if resp.DataType == ERROR {
err = GetError(resp.Data)
return
}
handle = resp.Handle
})
wg.Wait()
@ -205,7 +219,7 @@ func (client *Client) do(funcname string, data []byte,
// data is encoding to byte array.
// flag set the job type, include running level: JOB_LOW, JOB_NORMAL, JOB_HIGH
func (client *Client) Do(funcname string, data []byte,
flag byte, h ResponseHandler) (handle string) {
flag byte, h ResponseHandler) (handle string, err error) {
var datatype uint32
switch flag {
case JOB_LOW:
@ -215,7 +229,7 @@ func (client *Client) Do(funcname string, data []byte,
default:
datatype = SUBMIT_JOB
}
handle = client.do(funcname, data, datatype)
handle, err = client.do(funcname, data, datatype)
client.mutex.Lock()
defer client.mutex.Unlock()
if h != nil {
@ -229,7 +243,7 @@ func (client *Client) Do(funcname string, data []byte,
// data is encoding to byte array.
// flag set the job type, include running level: JOB_LOW, JOB_NORMAL, JOB_HIGH
func (client *Client) DoBg(funcname string, data []byte,
flag byte) (handle string) {
flag byte) (handle string, err error) {
var datatype uint32
switch flag {
case JOB_LOW:
@ -239,13 +253,13 @@ func (client *Client) DoBg(funcname string, data []byte,
default:
datatype = SUBMIT_JOB_BG
}
handle = client.do(funcname, data, datatype)
handle, err = client.do(funcname, data, datatype)
return
}
// Get job status from job server.
// !!!Not fully tested.!!!
func (client *Client) Status(handle string, h ResponseHandler) (status *Status, err error) {
func (client *Client) Status(handle string) (status *Status, err error) {
req := getRequest()
req.DataType = GET_STATUS
req.Data = []byte(handle)
@ -253,7 +267,8 @@ func (client *Client) Status(handle string, h ResponseHandler) (status *Status,
var wg sync.WaitGroup
wg.Add(1)
client.mutex.Lock()
client.innerHandler["status-" + handle] = ResponseHandler(func(resp *Response) {
client.lastcall = "s" + handle
client.innerHandler["s" + handle] = ResponseHandler(func(resp *Response) {
defer wg.Done()
defer client.mutex.Unlock()
var err error
@ -275,7 +290,8 @@ func (client *Client) Echo(data []byte) (echo []byte, err error) {
var wg sync.WaitGroup
wg.Add(1)
client.mutex.Lock()
client.innerHandler["echo"] = ResponseHandler(func(resp *Response) {
client.lastcall = "e"
client.innerHandler["e"] = ResponseHandler(func(resp *Response) {
defer wg.Done()
defer client.mutex.Unlock()
echo = resp.Data

65
client/client_test.go
View File

@ -1,15 +1,14 @@
package client
import (
"fmt"
"testing"
)
var client *Client
const (
TestStr = "Hello world"
)
func printHandle(resp *Response) {
fmt.Printf("%V", resp)
}
var client *Client
func TestClientAddServer(t *testing.T) {
t.Log("Add local server 127.0.0.1:4730")
@ -24,17 +23,23 @@ func TestClientAddServer(t *testing.T) {
}
func TestClientEcho(t *testing.T) {
err := client.Echo([]byte("Hello world"), printHandle)
echo, err := client.Echo([]byte(TestStr))
if err != nil {
t.Error(err)
return
}
if string(echo) != TestStr {
t.Errorf("Echo error, %s expected, %s got", TestStr, echo)
return
}
}
func TestClientDoBg(t *testing.T) {
if handle := client.DoBg("ToUpper", []byte("abcdef"),
JOB_LOW); handle == "" {
t.Error("Handle is empty.")
} else {
t.Log(handle)
}
}
@ -57,38 +62,34 @@ func TestClientDo(t *testing.T) {
}
func TestClientStatus(t *testing.T) {
err := client.Status("handle not exists", printHandle)
status, err := client.Status("handle not exists")
if err != nil {
t.Error(err)
return
}
/*
if s1.Known {
t.Errorf("The job (%s) shouldn't be known.", s1.Handle)
return
}
if s1.Running {
t.Errorf("The job (%s) shouldn't be running.", s1.Handle)
return
}*/
if status.Known {
t.Errorf("The job (%s) shouldn't be known.", status.Handle)
return
}
if status.Running {
t.Errorf("The job (%s) shouldn't be running.", status.Handle)
return
}
handle := client.Do("Delay5sec", []byte("abcdef"), JOB_LOW, nil)
err = client.Status(handle, printHandle)
/*
if err != nil {
t.Error(err)
return
}
if !s2.Known {
t.Errorf("The job (%s) should be known.", s2.Handle)
return
}
if s2.Running {
t.Errorf("The job (%s) shouldn't be running.", s2.Handle)
return
}
*/
status, err = client.Status(handle)
if err != nil {
t.Error(err)
return
}
if !status.Known {
t.Errorf("The job (%s) should be known.", status.Handle)
return
}
if status.Running {
t.Errorf("The job (%s) shouldn't be running.", status.Handle)
return
}
}
func TestClientClose(t *testing.T) {

13
client/error.go
View File

@ -6,11 +6,9 @@
package client
import (
"fmt"
"bytes"
"errors"
"fmt"
"strconv"
"syscall"
)
var (
@ -33,17 +31,12 @@ var (
func DisablePanic() { recover() }
// Extract the error message
func GetError(data []byte) (eno syscall.Errno, err error) {
func GetError(data []byte) (err error) {
rel := bytes.SplitN(data, []byte{'\x00'}, 2)
if len(rel) != 2 {
err = fmt.Errorf("Not a error data: %V", data)
return
}
var n uint64
if n, err = strconv.ParseUint(string(rel[0]), 10, 0); err != nil {
return
}
eno = syscall.Errno(n)
err = errors.New(string(rel[1]))
err = errors.New(fmt.Sprintf("%s: %s", rel[0], rel[1]))
return
}

14
client/pool.go
View File

@ -94,26 +94,26 @@ func (pool *Pool) Remove(addr string) {
}
func (pool *Pool) Do(funcname string, data []byte,
flag byte, h ResponseHandler) (addr, handle string) {
flag byte, h ResponseHandler) (addr, handle string, err error) {
client := pool.selectServer()
handle = client.Do(funcname, data, flag, h)
handle, err = client.Do(funcname, data, flag, h)
addr = client.addr
return
}
func (pool *Pool) DoBg(funcname string, data []byte,
flag byte) (addr, handle string) {
flag byte) (addr, handle string, err error) {
client := pool.selectServer()
handle = client.DoBg(funcname, data, flag)
handle, err = client.DoBg(funcname, data, flag)
addr = client.addr
return
}
// Get job status from job server.
// !!!Not fully tested.!!!
func (pool *Pool) Status(addr, handle string, h ResponseHandler) (status *Status, err error) {
func (pool *Pool) Status(addr, handle string) (status *Status, err error) {
if client, ok := pool.clients[addr]; ok {
status, err = client.Status(handle, h)
status, err = client.Status(handle)
} else {
err = ErrNotFound
}
@ -121,7 +121,7 @@ func (pool *Pool) Status(addr, handle string, h ResponseHandler) (status *Status
}
// Send a something out, get the samething back.
func (pool *Pool) Echo(addr string, data []byte, h ResponseHandler) (echo []byte, err error) {
func (pool *Pool) Echo(addr string, data []byte) (echo []byte, err error) {
var client *poolClient
if addr == "" {
client = pool.selectServer()

44
client/pool_test.go
View File

@ -13,7 +13,7 @@ func TestPoolAdd(t *testing.T) {
if err := pool.Add("tcp4", "127.0.0.1:4730", 1); err != nil {
t.Error(err)
}
if err := pool.Add("tcp4", "127.0.0.1:4730", 1); err != nil {
if err := pool.Add("tcp4", "127.0.1.1:4730", 1); err != nil {
t.Error(err)
}
if len(pool.clients) != 2 {
@ -22,17 +22,17 @@ func TestPoolAdd(t *testing.T) {
}
func TestPoolEcho(t *testing.T) {
echo, err := pool.Echo("", []byte("Hello pool"), printHandle)
echo, err := pool.Echo("", []byte(TestStr))
if err != nil {
t.Error(err)
return
}
if string(echo) != "Hello pool" {
if string(echo) != TestStr {
t.Errorf("Invalid echo data: %s", echo)
return
}
_, err = pool.Echo("not exists", []byte("Hello pool"), printHandle)
_, err = pool.Echo("not exists", []byte(TestStr))
if err != ErrNotFound {
t.Errorf("ErrNotFound expected, got %s", err)
}
@ -66,36 +66,34 @@ func TestPoolDo(t *testing.T) {
}
func TestPoolStatus(t *testing.T) {
err := pool.Status("127.0.0.1:4730", "handle not exists", printHandle)
status, err := pool.Status("127.0.0.1:4730", "handle not exists")
if err != nil {
t.Error(err)
return
}
/*
if s1.Known {
t.Errorf("The job (%s) shouldn't be known.", s1.Handle)
}
if s1.Running {
t.Errorf("The job (%s) shouldn't be running.", s1.Handle)
}
*/
if status.Known {
t.Errorf("The job (%s) shouldn't be known.", status.Handle)
}
if status.Running {
t.Errorf("The job (%s) shouldn't be running.", status.Handle)
}
addr, handle := pool.Do("Delay5sec", []byte("abcdef"), JOB_LOW, nil)
err = pool.Status(addr, handle, printHandle)
status, err = pool.Status(addr, handle)
if err != nil {
t.Error(err)
return
}
/*
if !s2.Known {
t.Errorf("The job (%s) should be known.", s2.Handle)
}
if s2.Running {
t.Errorf("The job (%s) shouldn't be running.", s2.Handle)
}
*/
err = pool.Status("not exists", "not exists", printHandle)
if !status.Known {
t.Errorf("The job (%s) should be known.", status.Handle)
}
if status.Running {
t.Errorf("The job (%s) shouldn't be running.", status.Handle)
}
status, err = pool.Status("not exists", "not exists")
if err != ErrNotFound {
t.Error(err)
return
}
}

2
client/request.go
View File

@ -33,7 +33,7 @@ func getRequest() (req *request) {
return
}
func getJob(funcname, id string, data []byte) (req *request) {
func getJob(id string, funcname, data []byte) (req *request) {
req = getRequest()
a := len(funcname)
b := len(id)

38
client/response.go
View File

@ -6,17 +6,17 @@
package client
import (
"bytes"
"encoding/binary"
"fmt"
"bytes"
"strconv"
"encoding/binary"
)
// response
type Response struct {
DataType uint32
Data []byte
UID, Handle string
Data, UID []byte
Handle string
}
// Extract the Response's result.
@ -82,9 +82,9 @@ func decodeResponse(data []byte) (resp *Response, l int, err error) {
resp = getResponse()
resp.DataType = binary.BigEndian.Uint32(data[4:8])
switch resp.DataType {
case ECHO_RES:
resp.Data = dt
case WORK_DATA, WORK_WARNING, WORK_STATUS,
case JOB_CREATED:
resp.Handle = string(dt)
case STATUS_RES, WORK_DATA, WORK_WARNING, WORK_STATUS,
WORK_COMPLETE, WORK_FAIL, WORK_EXCEPTION:
s := bytes.SplitN(dt, []byte{'\x00'}, 2)
if len(s) >= 2 {
@ -94,8 +94,12 @@ func decodeResponse(data []byte) (resp *Response, l int, err error) {
err = fmt.Errorf("Invalid data: %V", data)
return
}
case ECHO_RES:
fallthrough
default:
resp.Data = dt
}
l = len(resp.Data) + MIN_PACKET_LEN
l = dl + MIN_PACKET_LEN
return
}
@ -109,23 +113,23 @@ func (resp *Response) IsStatus() bool {
// status handler
func (resp *Response) Status() (status *Status, err error) {
data := bytes.SplitN(resp.Data, []byte{'\x00'}, 5)
if len(data) != 5 {
data := bytes.SplitN(resp.Data, []byte{'\x00'}, 4)
if len(data) != 4 {
err = fmt.Errorf("Invalid data: %V", resp.Data)
return
}
status = &Status{}
status.Handle = data[0]
status.Known = (data[1][0] == '1')
status.Running = (data[2][0] == '1')
status.Numerator, err = strconv.ParseUint(string(data[3]), 10, 0)
status.Handle = resp.Handle
status.Known = (data[0][0] == '1')
status.Running = (data[1][0] == '1')
status.Numerator, err = strconv.ParseUint(string(data[2]), 10, 0)
if err != nil {
err = fmt.Errorf("Invalid Integer: %s", data[3])
err = fmt.Errorf("Invalid Integer: %s", data[2])
return
}
status.Denominator, err = strconv.ParseUint(string(data[4]), 10, 0)
status.Denominator, err = strconv.ParseUint(string(data[3]), 10, 0)
if err != nil {
err = fmt.Errorf("Invalid Integer: %s", data[4])
err = fmt.Errorf("Invalid Integer: %s", data[3])
return
}
return

2
client/status.go
View File

@ -1,7 +1,7 @@
package client
type Status struct {
Handle []byte
Handle string
Known, Running bool
Numerator, Denominator uint64
}

31
gearman_test.go
View File

@ -41,6 +41,7 @@ func TestJobs(t *testing.T) {
return
}
defer w.Close()
t.Log("Servers added...")
if err := w.AddFunc("ToUpper", ToUpper, 0); err != nil {
t.Error(err)
return
@ -49,38 +50,42 @@ func TestJobs(t *testing.T) {
t.Error(err)
return
}
t.Log("Functions added...")
w.ErrHandler = func(e error) {
t.Error(e)
}
go w.Work()
t.Log("Worker is running...")
c, err := client.New(GEARMAND)
c, err := client.New("tcp4", GEARMAND)
if err != nil {
t.Error(err)
return
}
defer c.Close()
c.ErrHandler = func(e error) {
// t.Error(e)
c.ErrorHandler = func(e error) {
t.Log(e)
}
{
var w sync.WaitGroup
jobHandler := func(job *client.Job) {
jobHandler := func(job *client.Response) {
upper := strings.ToUpper(STR)
if (string(job.Data) != upper) {
t.Error("%s expected, got %s", []byte(upper), job.Data)
t.Errorf("%s expected, got %s", upper, job.Data)
}
w.Done()
}
w.Add(1)
handle := c.Do("ToUpper", []byte(STR), client.JOB_NORMAL, jobHandler)
handle, err := c.Do("ToUpper", []byte(STR), client.JOB_NORMAL, jobHandler)
if err != nil {
t.Error(err)
return
}
w.Wait()
status, err := c.Status(handle, time.Second)
status, err := c.Status(handle)
if err != nil {
t.Error(err)
return
@ -95,9 +100,13 @@ func TestJobs(t *testing.T) {
}
}
{
handle := c.DoBg("Sleep", nil, client.JOB_NORMAL)
handle, err := c.DoBg("Sleep", nil, client.JOB_NORMAL)
if err != nil {
t.Error(err)
return
}
time.Sleep(time.Second)
status, err := c.Status(handle, time.Second)
status, err := c.Status(handle)
if err != nil {
t.Error(err)
return
@ -113,7 +122,7 @@ func TestJobs(t *testing.T) {
}
}
{
status, err := c.Status("not exists handle", time.Second)
status, err := c.Status("not exists handle")
if err != nil {
t.Error(err)
return