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seperate the behavior from client : client input , request handle

This commit is contained in:
silentsai 2014-07-31 18:28:19 +08:00
parent 14767ecadb
commit 715e35098c
11 changed files with 637 additions and 557 deletions
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2
server/app.go
View File

@ -123,7 +123,7 @@ func (app *App) Run() {
continue continue
} }
newTcpClient(conn, app) newClientRESP(conn, app)
} }
} }

160
server/client.go
View File

@ -1,160 +0,0 @@
package server
import (
"bytes"
"errors"
"github.com/siddontang/go-log/log"
"github.com/siddontang/ledisdb/ledis"
"io"
"net"
"runtime"
"strings"
"time"
)
var errReadRequest = errors.New("invalid request protocol")
type client struct {
app *App
ldb *ledis.Ledis
db *ledis.DB
ctx clientContext
resp responseWriter
req requestReader
cmd string
args [][]byte
reqC chan error
compressBuf []byte
syncBuf bytes.Buffer
logBuf bytes.Buffer
}
type clientContext interface {
addr() string
release()
}
type requestReader interface {
// readLine func() ([]byte, error)
read() ([][]byte, error)
}
type responseWriter interface {
writeError(error)
writeStatus(string)
writeInteger(int64)
writeBulk([]byte)
writeArray([]interface{})
writeSliceArray([][]byte)
writeFVPairArray([]ledis.FVPair)
writeScorePairArray([]ledis.ScorePair, bool)
writeBulkFrom(int64, io.Reader)
flush()
}
func newClient(app *App) *client {
c := new(client)
c.app = app
c.ldb = app.ldb
c.db, _ = app.ldb.Select(0)
c.reqC = make(chan error, 1)
c.compressBuf = make([]byte, 256)
return c
}
func (c *client) run() {
defer func() {
if e := recover(); e != nil {
buf := make([]byte, 4096)
n := runtime.Stack(buf, false)
buf = buf[0:n]
log.Fatal("client run panic %s:%v", buf, e)
}
c.ctx.release()
}()
for {
req, err := c.req.read()
if err != nil {
return
}
c.handleRequest(req)
}
}
func (c *client) handleRequest(req [][]byte) {
var err error
start := time.Now()
if len(req) == 0 {
err = ErrEmptyCommand
} else {
c.cmd = strings.ToLower(ledis.String(req[0]))
c.args = req[1:]
f, ok := regCmds[c.cmd]
if !ok {
err = ErrNotFound
} else {
go func() {
c.reqC <- f(c)
}()
err = <-c.reqC
}
}
duration := time.Since(start)
if c.app.access != nil {
c.logBuf.Reset()
for i, r := range req {
left := 256 - c.logBuf.Len()
if left <= 0 {
break
} else if len(r) <= left {
c.logBuf.Write(r)
if i != len(req)-1 {
c.logBuf.WriteByte(' ')
}
} else {
c.logBuf.Write(r[0:left])
}
}
c.app.access.Log(c.ctx.addr(), duration.Nanoseconds()/1000000, c.logBuf.Bytes(), err)
}
if err != nil {
c.resp.writeError(err)
}
c.resp.flush()
}
func newTcpClient(conn net.Conn, app *App) {
c := newClient(app)
c.ctx = newTcpContext(conn)
c.req = newTcpReader(conn)
c.resp = newTcpWriter(conn)
go c.run()
}
// func newHttpClient(w http.ResponseWriter, r *http.Request, app *App) {
// c := newClient(app)
// go c.run()
// }

138
server/tcp_io.go → server/client_resp.go
View File

@ -3,58 +3,81 @@ package server
import ( import (
"bufio" "bufio"
"errors" "errors"
"github.com/siddontang/go-log/log"
"github.com/siddontang/ledisdb/ledis" "github.com/siddontang/ledisdb/ledis"
"io" "io"
"net" "net"
"runtime"
"strconv" "strconv"
"strings"
) )
type tcpContext struct { var errReadRequest = errors.New("invalid request protocol")
type respClient struct {
app *App
ldb *ledis.Ledis
db *ledis.DB
conn net.Conn conn net.Conn
rb *bufio.Reader
req *requestContext
hdl *requestHandler
} }
type tcpWriter struct { type respWriter struct {
buff *bufio.Writer buff *bufio.Writer
} }
type tcpReader struct { func newClientRESP(conn net.Conn, app *App) {
buff *bufio.Reader c := new(respClient)
c.app = app
c.conn = conn
c.ldb = app.ldb
c.db, _ = app.ldb.Select(0)
c.rb = bufio.NewReaderSize(conn, 256)
c.req = newRequestContext(app)
c.req.resp = newWriterRESP(conn)
c.hdl = newRequestHandler(app)
go c.run()
} }
// tcp context func (c *respClient) run() {
defer func() {
if e := recover(); e != nil {
buf := make([]byte, 4096)
n := runtime.Stack(buf, false)
buf = buf[0:n]
func newTcpContext(conn net.Conn) *tcpContext { log.Fatal("client run panic %s:%v", buf, e)
ctx := new(tcpContext) }
ctx.conn = conn
return ctx
}
func (ctx *tcpContext) addr() string { c.conn.Close()
return ctx.conn.RemoteAddr().String() }()
}
func (ctx *tcpContext) release() { for {
if ctx.conn != nil { reqData, err := c.readRequest()
ctx.conn.Close() if err != nil {
ctx.conn = nil return
}
c.handleRequest(reqData)
} }
} }
// tcp reader func (c *respClient) readLine() ([]byte, error) {
return ReadLine(c.rb)
func newTcpReader(conn net.Conn) *tcpReader {
r := new(tcpReader)
r.buff = bufio.NewReaderSize(conn, 256)
return r
}
func (r *tcpReader) readLine() ([]byte, error) {
return ReadLine(r.buff)
} }
//A client sends to the Redis server a RESP Array consisting of just Bulk Strings. //A client sends to the Redis server a RESP Array consisting of just Bulk Strings.
func (r *tcpReader) read() ([][]byte, error) { func (c *respClient) readRequest() ([][]byte, error) {
l, err := r.readLine() l, err := c.readLine()
if err != nil { if err != nil {
return nil, err return nil, err
} else if len(l) == 0 || l[0] != '*' { } else if len(l) == 0 || l[0] != '*' {
@ -68,10 +91,10 @@ func (r *tcpReader) read() ([][]byte, error) {
return nil, errReadRequest return nil, errReadRequest
} }
reqData := make([][]byte, 0, nparams) req := make([][]byte, 0, nparams)
var n int var n int
for i := 0; i < nparams; i++ { for i := 0; i < nparams; i++ {
if l, err = r.readLine(); err != nil { if l, err = c.readLine(); err != nil {
return nil, err return nil, err
} }
@ -82,20 +105,20 @@ func (r *tcpReader) read() ([][]byte, error) {
if n, err = strconv.Atoi(ledis.String(l[1:])); err != nil { if n, err = strconv.Atoi(ledis.String(l[1:])); err != nil {
return nil, err return nil, err
} else if n == -1 { } else if n == -1 {
reqData = append(reqData, nil) req = append(req, nil)
} else { } else {
buf := make([]byte, n) buf := make([]byte, n)
if _, err = io.ReadFull(r.buff, buf); err != nil { if _, err = io.ReadFull(c.rb, buf); err != nil {
return nil, err return nil, err
} }
if l, err = r.readLine(); err != nil { if l, err = c.readLine(); err != nil {
return nil, err return nil, err
} else if len(l) != 0 { } else if len(l) != 0 {
return nil, errors.New("bad bulk string format") return nil, errors.New("bad bulk string format")
} }
reqData = append(reqData, buf) req = append(req, buf)
} }
@ -104,18 +127,35 @@ func (r *tcpReader) read() ([][]byte, error) {
} }
} }
return reqData, nil return req, nil
} }
// tcp writer func (c *respClient) handleRequest(reqData [][]byte) {
req := c.req
func newTcpWriter(conn net.Conn) *tcpWriter { req.db = c.db
w := new(tcpWriter) req.remoteAddr = c.conn.RemoteAddr().String()
if len(reqData) == 0 {
c.req.cmd = ""
c.req.args = reqData[0:0]
} else {
c.req.cmd = strings.ToLower(ledis.String(reqData[0]))
c.req.args = reqData[1:]
}
c.hdl.postRequest(req)
}
// response writer
func newWriterRESP(conn net.Conn) *respWriter {
w := new(respWriter)
w.buff = bufio.NewWriterSize(conn, 256) w.buff = bufio.NewWriterSize(conn, 256)
return w return w
} }
func (w *tcpWriter) writeError(err error) { func (w *respWriter) writeError(err error) {
w.buff.Write(ledis.Slice("-ERR")) w.buff.Write(ledis.Slice("-ERR"))
if err != nil { if err != nil {
w.buff.WriteByte(' ') w.buff.WriteByte(' ')
@ -124,19 +164,19 @@ func (w *tcpWriter) writeError(err error) {
w.buff.Write(Delims) w.buff.Write(Delims)
} }
func (w *tcpWriter) writeStatus(status string) { func (w *respWriter) writeStatus(status string) {
w.buff.WriteByte('+') w.buff.WriteByte('+')
w.buff.Write(ledis.Slice(status)) w.buff.Write(ledis.Slice(status))
w.buff.Write(Delims) w.buff.Write(Delims)
} }
func (w *tcpWriter) writeInteger(n int64) { func (w *respWriter) writeInteger(n int64) {
w.buff.WriteByte(':') w.buff.WriteByte(':')
w.buff.Write(ledis.StrPutInt64(n)) w.buff.Write(ledis.StrPutInt64(n))
w.buff.Write(Delims) w.buff.Write(Delims)
} }
func (w *tcpWriter) writeBulk(b []byte) { func (w *respWriter) writeBulk(b []byte) {
w.buff.WriteByte('$') w.buff.WriteByte('$')
if b == nil { if b == nil {
w.buff.Write(NullBulk) w.buff.Write(NullBulk)
@ -149,7 +189,7 @@ func (w *tcpWriter) writeBulk(b []byte) {
w.buff.Write(Delims) w.buff.Write(Delims)
} }
func (w *tcpWriter) writeArray(lst []interface{}) { func (w *respWriter) writeArray(lst []interface{}) {
w.buff.WriteByte('*') w.buff.WriteByte('*')
if lst == nil { if lst == nil {
w.buff.Write(NullArray) w.buff.Write(NullArray)
@ -175,7 +215,7 @@ func (w *tcpWriter) writeArray(lst []interface{}) {
} }
} }
func (w *tcpWriter) writeSliceArray(lst [][]byte) { func (w *respWriter) writeSliceArray(lst [][]byte) {
w.buff.WriteByte('*') w.buff.WriteByte('*')
if lst == nil { if lst == nil {
w.buff.Write(NullArray) w.buff.Write(NullArray)
@ -190,7 +230,7 @@ func (w *tcpWriter) writeSliceArray(lst [][]byte) {
} }
} }
func (w *tcpWriter) writeFVPairArray(lst []ledis.FVPair) { func (w *respWriter) writeFVPairArray(lst []ledis.FVPair) {
w.buff.WriteByte('*') w.buff.WriteByte('*')
if lst == nil { if lst == nil {
w.buff.Write(NullArray) w.buff.Write(NullArray)
@ -206,7 +246,7 @@ func (w *tcpWriter) writeFVPairArray(lst []ledis.FVPair) {
} }
} }
func (w *tcpWriter) writeScorePairArray(lst []ledis.ScorePair, withScores bool) { func (w *respWriter) writeScorePairArray(lst []ledis.ScorePair, withScores bool) {
w.buff.WriteByte('*') w.buff.WriteByte('*')
if lst == nil { if lst == nil {
w.buff.Write(NullArray) w.buff.Write(NullArray)
@ -231,7 +271,7 @@ func (w *tcpWriter) writeScorePairArray(lst []ledis.ScorePair, withScores bool)
} }
} }
func (w *tcpWriter) writeBulkFrom(n int64, rb io.Reader) { func (w *respWriter) writeBulkFrom(n int64, rb io.Reader) {
w.buff.WriteByte('$') w.buff.WriteByte('$')
w.buff.Write(ledis.Slice(strconv.FormatInt(n, 10))) w.buff.Write(ledis.Slice(strconv.FormatInt(n, 10)))
w.buff.Write(Delims) w.buff.Write(Delims)
@ -240,6 +280,6 @@ func (w *tcpWriter) writeBulkFrom(n int64, rb io.Reader) {
w.buff.Write(Delims) w.buff.Write(Delims)
} }
func (w *tcpWriter) flush() { func (w *respWriter) flush() {
w.buff.Flush() w.buff.Flush()
} }

88
server/cmd_bit.go
View File

@ -5,36 +5,36 @@ import (
"strings" "strings"
) )
func bgetCommand(c *client) error { func bgetCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if v, err := c.db.BGet(args[0]); err != nil { if v, err := req.db.BGet(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeBulk(v) req.resp.writeBulk(v)
} }
return nil return nil
} }
func bdeleteCommand(c *client) error { func bdeleteCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.BDelete(args[0]); err != nil { if n, err := req.db.BDelete(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func bsetbitCommand(c *client) error { func bsetbitCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 3 { if len(args) != 3 {
return ErrCmdParams return ErrCmdParams
} }
@ -53,16 +53,16 @@ func bsetbitCommand(c *client) error {
return err return err
} }
if ori, err := c.db.BSetBit(args[0], offset, uint8(val)); err != nil { if ori, err := req.db.BSetBit(args[0], offset, uint8(val)); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(int64(ori)) req.resp.writeInteger(int64(ori))
} }
return nil return nil
} }
func bgetbitCommand(c *client) error { func bgetbitCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 2 { if len(args) != 2 {
return ErrCmdParams return ErrCmdParams
} }
@ -72,16 +72,16 @@ func bgetbitCommand(c *client) error {
return err return err
} }
if v, err := c.db.BGetBit(args[0], offset); err != nil { if v, err := req.db.BGetBit(args[0], offset); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(int64(v)) req.resp.writeInteger(int64(v))
} }
return nil return nil
} }
func bmsetbitCommand(c *client) error { func bmsetbitCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) < 3 { if len(args) < 3 {
return ErrCmdParams return ErrCmdParams
} }
@ -113,16 +113,16 @@ func bmsetbitCommand(c *client) error {
pairs[i].Val = uint8(val) pairs[i].Val = uint8(val)
} }
if place, err := c.db.BMSetBit(key, pairs...); err != nil { if place, err := req.db.BMSetBit(key, pairs...); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(place) req.resp.writeInteger(place)
} }
return nil return nil
} }
func bcountCommand(c *client) error { func bcountCommand(req *requestContext) error {
args := c.args args := req.args
argCnt := len(args) argCnt := len(args)
if !(argCnt > 0 && argCnt <= 3) { if !(argCnt > 0 && argCnt <= 3) {
@ -148,16 +148,16 @@ func bcountCommand(c *client) error {
} }
} }
if cnt, err := c.db.BCount(args[0], start, end); err != nil { if cnt, err := req.db.BCount(args[0], start, end); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(int64(cnt)) req.resp.writeInteger(int64(cnt))
} }
return nil return nil
} }
func boptCommand(c *client) error { func boptCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) < 2 { if len(args) < 2 {
return ErrCmdParams return ErrCmdParams
} }
@ -180,16 +180,16 @@ func boptCommand(c *client) error {
return ErrCmdParams return ErrCmdParams
} }
if blen, err := c.db.BOperation(op, dstKey, srcKeys...); err != nil { if blen, err := req.db.BOperation(op, dstKey, srcKeys...); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(int64(blen)) req.resp.writeInteger(int64(blen))
} }
return nil return nil
} }
func bexpireCommand(c *client) error { func bexpireCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) == 0 { if len(args) == 0 {
return ErrCmdParams return ErrCmdParams
} }
@ -199,17 +199,17 @@ func bexpireCommand(c *client) error {
return err return err
} }
if v, err := c.db.BExpire(args[0], duration); err != nil { if v, err := req.db.BExpire(args[0], duration); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(v) req.resp.writeInteger(v)
} }
return nil return nil
} }
func bexpireatCommand(c *client) error { func bexpireatCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) == 0 { if len(args) == 0 {
return ErrCmdParams return ErrCmdParams
} }
@ -219,40 +219,40 @@ func bexpireatCommand(c *client) error {
return err return err
} }
if v, err := c.db.BExpireAt(args[0], when); err != nil { if v, err := req.db.BExpireAt(args[0], when); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(v) req.resp.writeInteger(v)
} }
return nil return nil
} }
func bttlCommand(c *client) error { func bttlCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) == 0 { if len(args) == 0 {
return ErrCmdParams return ErrCmdParams
} }
if v, err := c.db.BTTL(args[0]); err != nil { if v, err := req.db.BTTL(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(v) req.resp.writeInteger(v)
} }
return nil return nil
} }
func bpersistCommand(c *client) error { func bpersistCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.BPersist(args[0]); err != nil { if n, err := req.db.BPersist(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil

136
server/cmd_hash.go
View File

@ -4,87 +4,87 @@ import (
"github.com/siddontang/ledisdb/ledis" "github.com/siddontang/ledisdb/ledis"
) )
func hsetCommand(c *client) error { func hsetCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 3 { if len(args) != 3 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.HSet(args[0], args[1], args[2]); err != nil { if n, err := req.db.HSet(args[0], args[1], args[2]); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func hgetCommand(c *client) error { func hgetCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 2 { if len(args) != 2 {
return ErrCmdParams return ErrCmdParams
} }
if v, err := c.db.HGet(args[0], args[1]); err != nil { if v, err := req.db.HGet(args[0], args[1]); err != nil {
return err return err
} else { } else {
c.resp.writeBulk(v) req.resp.writeBulk(v)
} }
return nil return nil
} }
func hexistsCommand(c *client) error { func hexistsCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 2 { if len(args) != 2 {
return ErrCmdParams return ErrCmdParams
} }
var n int64 = 1 var n int64 = 1
if v, err := c.db.HGet(args[0], args[1]); err != nil { if v, err := req.db.HGet(args[0], args[1]); err != nil {
return err return err
} else { } else {
if v == nil { if v == nil {
n = 0 n = 0
} }
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func hdelCommand(c *client) error { func hdelCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) < 2 { if len(args) < 2 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.HDel(args[0], args[1:]...); err != nil { if n, err := req.db.HDel(args[0], args[1:]...); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func hlenCommand(c *client) error { func hlenCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.HLen(args[0]); err != nil { if n, err := req.db.HLen(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func hincrbyCommand(c *client) error { func hincrbyCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 3 { if len(args) != 3 {
return ErrCmdParams return ErrCmdParams
} }
@ -95,16 +95,16 @@ func hincrbyCommand(c *client) error {
} }
var n int64 var n int64
if n, err = c.db.HIncrBy(args[0], args[1], delta); err != nil { if n, err = req.db.HIncrBy(args[0], args[1], delta); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func hmsetCommand(c *client) error { func hmsetCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) < 3 { if len(args) < 3 {
return ErrCmdParams return ErrCmdParams
} }
@ -123,107 +123,107 @@ func hmsetCommand(c *client) error {
kvs[i].Value = args[2*i+1] kvs[i].Value = args[2*i+1]
} }
if err := c.db.HMset(key, kvs...); err != nil { if err := req.db.HMset(key, kvs...); err != nil {
return err return err
} else { } else {
c.resp.writeStatus(OK) req.resp.writeStatus(OK)
} }
return nil return nil
} }
func hmgetCommand(c *client) error { func hmgetCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) < 2 { if len(args) < 2 {
return ErrCmdParams return ErrCmdParams
} }
if v, err := c.db.HMget(args[0], args[1:]...); err != nil { if v, err := req.db.HMget(args[0], args[1:]...); err != nil {
return err return err
} else { } else {
c.resp.writeSliceArray(v) req.resp.writeSliceArray(v)
} }
return nil return nil
} }
func hgetallCommand(c *client) error { func hgetallCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if v, err := c.db.HGetAll(args[0]); err != nil { if v, err := req.db.HGetAll(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeFVPairArray(v) req.resp.writeFVPairArray(v)
} }
return nil return nil
} }
func hkeysCommand(c *client) error { func hkeysCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if v, err := c.db.HKeys(args[0]); err != nil { if v, err := req.db.HKeys(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeSliceArray(v) req.resp.writeSliceArray(v)
} }
return nil return nil
} }
func hvalsCommand(c *client) error { func hvalsCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if v, err := c.db.HValues(args[0]); err != nil { if v, err := req.db.HValues(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeSliceArray(v) req.resp.writeSliceArray(v)
} }
return nil return nil
} }
func hclearCommand(c *client) error { func hclearCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.HClear(args[0]); err != nil { if n, err := req.db.HClear(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func hmclearCommand(c *client) error { func hmclearCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) < 1 { if len(args) < 1 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.HMclear(args...); err != nil { if n, err := req.db.HMclear(args...); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func hexpireCommand(c *client) error { func hexpireCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 2 { if len(args) != 2 {
return ErrCmdParams return ErrCmdParams
} }
@ -233,17 +233,17 @@ func hexpireCommand(c *client) error {
return err return err
} }
if v, err := c.db.HExpire(args[0], duration); err != nil { if v, err := req.db.HExpire(args[0], duration); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(v) req.resp.writeInteger(v)
} }
return nil return nil
} }
func hexpireAtCommand(c *client) error { func hexpireAtCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 2 { if len(args) != 2 {
return ErrCmdParams return ErrCmdParams
} }
@ -253,40 +253,40 @@ func hexpireAtCommand(c *client) error {
return err return err
} }
if v, err := c.db.HExpireAt(args[0], when); err != nil { if v, err := req.db.HExpireAt(args[0], when); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(v) req.resp.writeInteger(v)
} }
return nil return nil
} }
func httlCommand(c *client) error { func httlCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if v, err := c.db.HTTL(args[0]); err != nil { if v, err := req.db.HTTL(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(v) req.resp.writeInteger(v)
} }
return nil return nil
} }
func hpersistCommand(c *client) error { func hpersistCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.HPersist(args[0]); err != nil { if n, err := req.db.HPersist(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil

130
server/cmd_kv.go
View File

@ -4,112 +4,112 @@ import (
"github.com/siddontang/ledisdb/ledis" "github.com/siddontang/ledisdb/ledis"
) )
func getCommand(c *client) error { func getCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if v, err := c.db.Get(args[0]); err != nil { if v, err := req.db.Get(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeBulk(v) req.resp.writeBulk(v)
} }
return nil return nil
} }
func setCommand(c *client) error { func setCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 2 { if len(args) != 2 {
return ErrCmdParams return ErrCmdParams
} }
if err := c.db.Set(args[0], args[1]); err != nil { if err := req.db.Set(args[0], args[1]); err != nil {
return err return err
} else { } else {
c.resp.writeStatus(OK) req.resp.writeStatus(OK)
} }
return nil return nil
} }
func getsetCommand(c *client) error { func getsetCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 2 { if len(args) != 2 {
return ErrCmdParams return ErrCmdParams
} }
if v, err := c.db.GetSet(args[0], args[1]); err != nil { if v, err := req.db.GetSet(args[0], args[1]); err != nil {
return err return err
} else { } else {
c.resp.writeBulk(v) req.resp.writeBulk(v)
} }
return nil return nil
} }
func setnxCommand(c *client) error { func setnxCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 2 { if len(args) != 2 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.SetNX(args[0], args[1]); err != nil { if n, err := req.db.SetNX(args[0], args[1]); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func existsCommand(c *client) error { func existsCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.Exists(args[0]); err != nil { if n, err := req.db.Exists(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func incrCommand(c *client) error { func incrCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.Incr(c.args[0]); err != nil { if n, err := req.db.Incr(req.args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func decrCommand(c *client) error { func decrCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.Decr(c.args[0]); err != nil { if n, err := req.db.Decr(req.args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func incrbyCommand(c *client) error { func incrbyCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 2 { if len(args) != 2 {
return ErrCmdParams return ErrCmdParams
} }
@ -119,17 +119,17 @@ func incrbyCommand(c *client) error {
return err return err
} }
if n, err := c.db.IncryBy(c.args[0], delta); err != nil { if n, err := req.db.IncryBy(req.args[0], delta); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func decrbyCommand(c *client) error { func decrbyCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 2 { if len(args) != 2 {
return ErrCmdParams return ErrCmdParams
} }
@ -139,32 +139,32 @@ func decrbyCommand(c *client) error {
return err return err
} }
if n, err := c.db.DecrBy(c.args[0], delta); err != nil { if n, err := req.db.DecrBy(req.args[0], delta); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func delCommand(c *client) error { func delCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) == 0 { if len(args) == 0 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.Del(args...); err != nil { if n, err := req.db.Del(args...); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func msetCommand(c *client) error { func msetCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) == 0 || len(args)%2 != 0 { if len(args) == 0 || len(args)%2 != 0 {
return ErrCmdParams return ErrCmdParams
} }
@ -175,36 +175,36 @@ func msetCommand(c *client) error {
kvs[i].Value = args[2*i+1] kvs[i].Value = args[2*i+1]
} }
if err := c.db.MSet(kvs...); err != nil { if err := req.db.MSet(kvs...); err != nil {
return err return err
} else { } else {
c.resp.writeStatus(OK) req.resp.writeStatus(OK)
} }
return nil return nil
} }
// func setexCommand(c *client) error { // func setexCommand(req *requestContext) error {
// return nil // return nil
// } // }
func mgetCommand(c *client) error { func mgetCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) == 0 { if len(args) == 0 {
return ErrCmdParams return ErrCmdParams
} }
if v, err := c.db.MGet(args...); err != nil { if v, err := req.db.MGet(args...); err != nil {
return err return err
} else { } else {
c.resp.writeSliceArray(v) req.resp.writeSliceArray(v)
} }
return nil return nil
} }
func expireCommand(c *client) error { func expireCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 2 { if len(args) != 2 {
return ErrCmdParams return ErrCmdParams
} }
@ -214,17 +214,17 @@ func expireCommand(c *client) error {
return err return err
} }
if v, err := c.db.Expire(args[0], duration); err != nil { if v, err := req.db.Expire(args[0], duration); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(v) req.resp.writeInteger(v)
} }
return nil return nil
} }
func expireAtCommand(c *client) error { func expireAtCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 2 { if len(args) != 2 {
return ErrCmdParams return ErrCmdParams
} }
@ -234,40 +234,40 @@ func expireAtCommand(c *client) error {
return err return err
} }
if v, err := c.db.ExpireAt(args[0], when); err != nil { if v, err := req.db.ExpireAt(args[0], when); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(v) req.resp.writeInteger(v)
} }
return nil return nil
} }
func ttlCommand(c *client) error { func ttlCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if v, err := c.db.TTL(args[0]); err != nil { if v, err := req.db.TTL(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(v) req.resp.writeInteger(v)
} }
return nil return nil
} }
func persistCommand(c *client) error { func persistCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.Persist(args[0]); err != nil { if n, err := req.db.Persist(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil

104
server/cmd_list.go
View File

@ -4,83 +4,83 @@ import (
"github.com/siddontang/ledisdb/ledis" "github.com/siddontang/ledisdb/ledis"
) )
func lpushCommand(c *client) error { func lpushCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) < 2 { if len(args) < 2 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.LPush(args[0], args[1:]...); err != nil { if n, err := req.db.LPush(args[0], args[1:]...); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func rpushCommand(c *client) error { func rpushCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) < 2 { if len(args) < 2 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.RPush(args[0], args[1:]...); err != nil { if n, err := req.db.RPush(args[0], args[1:]...); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func lpopCommand(c *client) error { func lpopCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if v, err := c.db.LPop(args[0]); err != nil { if v, err := req.db.LPop(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeBulk(v) req.resp.writeBulk(v)
} }
return nil return nil
} }
func rpopCommand(c *client) error { func rpopCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if v, err := c.db.RPop(args[0]); err != nil { if v, err := req.db.RPop(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeBulk(v) req.resp.writeBulk(v)
} }
return nil return nil
} }
func llenCommand(c *client) error { func llenCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.LLen(args[0]); err != nil { if n, err := req.db.LLen(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func lindexCommand(c *client) error { func lindexCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 2 { if len(args) != 2 {
return ErrCmdParams return ErrCmdParams
} }
@ -90,17 +90,17 @@ func lindexCommand(c *client) error {
return err return err
} }
if v, err := c.db.LIndex(args[0], int32(index)); err != nil { if v, err := req.db.LIndex(args[0], int32(index)); err != nil {
return err return err
} else { } else {
c.resp.writeBulk(v) req.resp.writeBulk(v)
} }
return nil return nil
} }
func lrangeCommand(c *client) error { func lrangeCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 3 { if len(args) != 3 {
return ErrCmdParams return ErrCmdParams
} }
@ -119,47 +119,47 @@ func lrangeCommand(c *client) error {
return err return err
} }
if v, err := c.db.LRange(args[0], int32(start), int32(stop)); err != nil { if v, err := req.db.LRange(args[0], int32(start), int32(stop)); err != nil {
return err return err
} else { } else {
c.resp.writeSliceArray(v) req.resp.writeSliceArray(v)
} }
return nil return nil
} }
func lclearCommand(c *client) error { func lclearCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.LClear(args[0]); err != nil { if n, err := req.db.LClear(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func lmclearCommand(c *client) error { func lmclearCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) < 1 { if len(args) < 1 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.LMclear(args...); err != nil { if n, err := req.db.LMclear(args...); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func lexpireCommand(c *client) error { func lexpireCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 2 { if len(args) != 2 {
return ErrCmdParams return ErrCmdParams
} }
@ -169,17 +169,17 @@ func lexpireCommand(c *client) error {
return err return err
} }
if v, err := c.db.LExpire(args[0], duration); err != nil { if v, err := req.db.LExpire(args[0], duration); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(v) req.resp.writeInteger(v)
} }
return nil return nil
} }
func lexpireAtCommand(c *client) error { func lexpireAtCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 2 { if len(args) != 2 {
return ErrCmdParams return ErrCmdParams
} }
@ -189,40 +189,40 @@ func lexpireAtCommand(c *client) error {
return err return err
} }
if v, err := c.db.LExpireAt(args[0], when); err != nil { if v, err := req.db.LExpireAt(args[0], when); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(v) req.resp.writeInteger(v)
} }
return nil return nil
} }
func lttlCommand(c *client) error { func lttlCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if v, err := c.db.LTTL(args[0]); err != nil { if v, err := req.db.LTTL(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(v) req.resp.writeInteger(v)
} }
return nil return nil
} }
func lpersistCommand(c *client) error { func lpersistCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.LPersist(args[0]); err != nil { if n, err := req.db.LPersist(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil

36
server/cmd_replication.go
View File

@ -11,8 +11,8 @@ import (
"strings" "strings"
) )
func slaveofCommand(c *client) error { func slaveofCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 2 { if len(args) != 2 {
return ErrCmdParams return ErrCmdParams
@ -31,23 +31,23 @@ func slaveofCommand(c *client) error {
masterAddr = fmt.Sprintf("%s:%s", args[0], args[1]) masterAddr = fmt.Sprintf("%s:%s", args[0], args[1])
} }
if err := c.app.slaveof(masterAddr); err != nil { if err := req.app.slaveof(masterAddr); err != nil {
return err return err
} }
c.resp.writeStatus(OK) req.resp.writeStatus(OK)
return nil return nil
} }
func fullsyncCommand(c *client) error { func fullsyncCommand(req *requestContext) error {
//todo, multi fullsync may use same dump file //todo, multi fullsync may use same dump file
dumpFile, err := ioutil.TempFile(c.app.cfg.DataDir, "dump_") dumpFile, err := ioutil.TempFile(req.app.cfg.DataDir, "dump_")
if err != nil { if err != nil {
return err return err
} }
if err = c.app.ldb.Dump(dumpFile); err != nil { if err = req.app.ldb.Dump(dumpFile); err != nil {
return err return err
} }
@ -56,7 +56,7 @@ func fullsyncCommand(c *client) error {
dumpFile.Seek(0, os.SEEK_SET) dumpFile.Seek(0, os.SEEK_SET)
c.resp.writeBulkFrom(n, dumpFile) req.resp.writeBulkFrom(n, dumpFile)
name := dumpFile.Name() name := dumpFile.Name()
dumpFile.Close() dumpFile.Close()
@ -68,8 +68,8 @@ func fullsyncCommand(c *client) error {
var reserveInfoSpace = make([]byte, 16) var reserveInfoSpace = make([]byte, 16)
func syncCommand(c *client) error { func syncCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 2 { if len(args) != 2 {
return ErrCmdParams return ErrCmdParams
} }
@ -87,32 +87,32 @@ func syncCommand(c *client) error {
return ErrCmdParams return ErrCmdParams
} }
c.syncBuf.Reset() req.syncBuf.Reset()
//reserve space to write master info //reserve space to write master info
if _, err := c.syncBuf.Write(reserveInfoSpace); err != nil { if _, err := req.syncBuf.Write(reserveInfoSpace); err != nil {
return err return err
} }
m := &ledis.MasterInfo{logIndex, logPos} m := &ledis.MasterInfo{logIndex, logPos}
if _, err := c.app.ldb.ReadEventsTo(m, &c.syncBuf); err != nil { if _, err := req.app.ldb.ReadEventsTo(m, &req.syncBuf); err != nil {
return err return err
} else { } else {
buf := c.syncBuf.Bytes() buf := req.syncBuf.Bytes()
binary.BigEndian.PutUint64(buf[0:], uint64(m.LogFileIndex)) binary.BigEndian.PutUint64(buf[0:], uint64(m.LogFileIndex))
binary.BigEndian.PutUint64(buf[8:], uint64(m.LogPos)) binary.BigEndian.PutUint64(buf[8:], uint64(m.LogPos))
if len(c.compressBuf) < snappy.MaxEncodedLen(len(buf)) { if len(req.compressBuf) < snappy.MaxEncodedLen(len(buf)) {
c.compressBuf = make([]byte, snappy.MaxEncodedLen(len(buf))) req.compressBuf = make([]byte, snappy.MaxEncodedLen(len(buf)))
} }
if buf, err = snappy.Encode(c.compressBuf, buf); err != nil { if buf, err = snappy.Encode(req.compressBuf, buf); err != nil {
return err return err
} }
c.resp.writeBulk(buf) req.resp.writeBulk(buf)
} }
return nil return nil

176
server/cmd_zset.go
View File

@ -12,8 +12,8 @@ import (
var errScoreOverflow = errors.New("zset score overflow") var errScoreOverflow = errors.New("zset score overflow")
func zaddCommand(c *client) error { func zaddCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) < 3 { if len(args) < 3 {
return ErrCmdParams return ErrCmdParams
} }
@ -36,66 +36,66 @@ func zaddCommand(c *client) error {
params[i].Member = args[2*i+1] params[i].Member = args[2*i+1]
} }
if n, err := c.db.ZAdd(key, params...); err != nil { if n, err := req.db.ZAdd(key, params...); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func zcardCommand(c *client) error { func zcardCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.ZCard(args[0]); err != nil { if n, err := req.db.ZCard(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func zscoreCommand(c *client) error { func zscoreCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 2 { if len(args) != 2 {
return ErrCmdParams return ErrCmdParams
} }
if s, err := c.db.ZScore(args[0], args[1]); err != nil { if s, err := req.db.ZScore(args[0], args[1]); err != nil {
if err == ledis.ErrScoreMiss { if err == ledis.ErrScoreMiss {
c.resp.writeBulk(nil) req.resp.writeBulk(nil)
} else { } else {
return err return err
} }
} else { } else {
c.resp.writeBulk(ledis.StrPutInt64(s)) req.resp.writeBulk(ledis.StrPutInt64(s))
} }
return nil return nil
} }
func zremCommand(c *client) error { func zremCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) < 2 { if len(args) < 2 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.ZRem(args[0], args[1:]...); err != nil { if n, err := req.db.ZRem(args[0], args[1:]...); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func zincrbyCommand(c *client) error { func zincrbyCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 3 { if len(args) != 3 {
return ErrCmdParams return ErrCmdParams
} }
@ -107,10 +107,10 @@ func zincrbyCommand(c *client) error {
return err return err
} }
if v, err := c.db.ZIncrBy(key, delta, args[2]); err != nil { if v, err := req.db.ZIncrBy(key, delta, args[2]); err != nil {
return err return err
} else { } else {
c.resp.writeBulk(ledis.StrPutInt64(v)) req.resp.writeBulk(ledis.StrPutInt64(v))
} }
return nil return nil
@ -178,8 +178,8 @@ func zparseScoreRange(minBuf []byte, maxBuf []byte) (min int64, max int64, err e
return return
} }
func zcountCommand(c *client) error { func zcountCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 3 { if len(args) != 3 {
return ErrCmdParams return ErrCmdParams
} }
@ -190,77 +190,77 @@ func zcountCommand(c *client) error {
} }
if min > max { if min > max {
c.resp.writeInteger(0) req.resp.writeInteger(0)
return nil return nil
} }
if n, err := c.db.ZCount(args[0], min, max); err != nil { if n, err := req.db.ZCount(args[0], min, max); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func zrankCommand(c *client) error { func zrankCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 2 { if len(args) != 2 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.ZRank(args[0], args[1]); err != nil { if n, err := req.db.ZRank(args[0], args[1]); err != nil {
return err return err
} else if n == -1 { } else if n == -1 {
c.resp.writeBulk(nil) req.resp.writeBulk(nil)
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func zrevrankCommand(c *client) error { func zrevrankCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 2 { if len(args) != 2 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.ZRevRank(args[0], args[1]); err != nil { if n, err := req.db.ZRevRank(args[0], args[1]); err != nil {
return err return err
} else if n == -1 { } else if n == -1 {
c.resp.writeBulk(nil) req.resp.writeBulk(nil)
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func zremrangebyrankCommand(c *client) error { func zremrangebyrankCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 3 { if len(args) != 3 {
return ErrCmdParams return ErrCmdParams
} }
key := args[0] key := args[0]
start, stop, err := zparseRange(c, args[1], args[2]) start, stop, err := zparseRange(req, args[1], args[2])
if err != nil { if err != nil {
return err return err
} }
if n, err := c.db.ZRemRangeByRank(key, start, stop); err != nil { if n, err := req.db.ZRemRangeByRank(key, start, stop); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func zremrangebyscoreCommand(c *client) error { func zremrangebyscoreCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 3 { if len(args) != 3 {
return ErrCmdParams return ErrCmdParams
} }
@ -271,16 +271,16 @@ func zremrangebyscoreCommand(c *client) error {
return err return err
} }
if n, err := c.db.ZRemRangeByScore(key, min, max); err != nil { if n, err := req.db.ZRemRangeByScore(key, min, max); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func zparseRange(c *client, a1 []byte, a2 []byte) (start int, stop int, err error) { func zparseRange(req *requestContext, a1 []byte, a2 []byte) (start int, stop int, err error) {
if start, err = strconv.Atoi(ledis.String(a1)); err != nil { if start, err = strconv.Atoi(ledis.String(a1)); err != nil {
return return
} }
@ -292,15 +292,15 @@ func zparseRange(c *client, a1 []byte, a2 []byte) (start int, stop int, err erro
return return
} }
func zrangeGeneric(c *client, reverse bool) error { func zrangeGeneric(req *requestContext, reverse bool) error {
args := c.args args := req.args
if len(args) < 3 { if len(args) < 3 {
return ErrCmdParams return ErrCmdParams
} }
key := args[0] key := args[0]
start, stop, err := zparseRange(c, args[1], args[2]) start, stop, err := zparseRange(req, args[1], args[2])
if err != nil { if err != nil {
return err return err
} }
@ -312,24 +312,24 @@ func zrangeGeneric(c *client, reverse bool) error {
withScores = true withScores = true
} }
if datas, err := c.db.ZRangeGeneric(key, start, stop, reverse); err != nil { if datas, err := req.db.ZRangeGeneric(key, start, stop, reverse); err != nil {
return err return err
} else { } else {
c.resp.writeScorePairArray(datas, withScores) req.resp.writeScorePairArray(datas, withScores)
} }
return nil return nil
} }
func zrangeCommand(c *client) error { func zrangeCommand(req *requestContext) error {
return zrangeGeneric(c, false) return zrangeGeneric(req, false)
} }
func zrevrangeCommand(c *client) error { func zrevrangeCommand(req *requestContext) error {
return zrangeGeneric(c, true) return zrangeGeneric(req, true)
} }
func zrangebyscoreGeneric(c *client, reverse bool) error { func zrangebyscoreGeneric(req *requestContext, reverse bool) error {
args := c.args args := req.args
if len(args) < 3 { if len(args) < 3 {
return ErrCmdParams return ErrCmdParams
} }
@ -383,59 +383,59 @@ func zrangebyscoreGeneric(c *client, reverse bool) error {
if offset < 0 { if offset < 0 {
//for ledis, if offset < 0, a empty will return //for ledis, if offset < 0, a empty will return
//so here we directly return a empty array //so here we directly return a empty array
c.resp.writeArray([]interface{}{}) req.resp.writeArray([]interface{}{})
return nil return nil
} }
if datas, err := c.db.ZRangeByScoreGeneric(key, min, max, offset, count, reverse); err != nil { if datas, err := req.db.ZRangeByScoreGeneric(key, min, max, offset, count, reverse); err != nil {
return err return err
} else { } else {
c.resp.writeScorePairArray(datas, withScores) req.resp.writeScorePairArray(datas, withScores)
} }
return nil return nil
} }
func zrangebyscoreCommand(c *client) error { func zrangebyscoreCommand(req *requestContext) error {
return zrangebyscoreGeneric(c, false) return zrangebyscoreGeneric(req, false)
} }
func zrevrangebyscoreCommand(c *client) error { func zrevrangebyscoreCommand(req *requestContext) error {
return zrangebyscoreGeneric(c, true) return zrangebyscoreGeneric(req, true)
} }
func zclearCommand(c *client) error { func zclearCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.ZClear(args[0]); err != nil { if n, err := req.db.ZClear(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func zmclearCommand(c *client) error { func zmclearCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) < 1 { if len(args) < 1 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.ZMclear(args...); err != nil { if n, err := req.db.ZMclear(args...); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil
} }
func zexpireCommand(c *client) error { func zexpireCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 2 { if len(args) != 2 {
return ErrCmdParams return ErrCmdParams
} }
@ -445,17 +445,17 @@ func zexpireCommand(c *client) error {
return err return err
} }
if v, err := c.db.ZExpire(args[0], duration); err != nil { if v, err := req.db.ZExpire(args[0], duration); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(v) req.resp.writeInteger(v)
} }
return nil return nil
} }
func zexpireAtCommand(c *client) error { func zexpireAtCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 2 { if len(args) != 2 {
return ErrCmdParams return ErrCmdParams
} }
@ -465,40 +465,40 @@ func zexpireAtCommand(c *client) error {
return err return err
} }
if v, err := c.db.ZExpireAt(args[0], when); err != nil { if v, err := req.db.ZExpireAt(args[0], when); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(v) req.resp.writeInteger(v)
} }
return nil return nil
} }
func zttlCommand(c *client) error { func zttlCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if v, err := c.db.ZTTL(args[0]); err != nil { if v, err := req.db.ZTTL(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(v) req.resp.writeInteger(v)
} }
return nil return nil
} }
func zpersistCommand(c *client) error { func zpersistCommand(req *requestContext) error {
args := c.args args := req.args
if len(args) != 1 { if len(args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if n, err := c.db.ZPersist(args[0]); err != nil { if n, err := req.db.ZPersist(args[0]); err != nil {
return err return err
} else { } else {
c.resp.writeInteger(n) req.resp.writeInteger(n)
} }
return nil return nil

24
server/command.go
View File

@ -8,7 +8,7 @@ import (
"strings" "strings"
) )
type CommandFunc func(c *client) error type CommandFunc func(req *requestContext) error
var regCmds = map[string]CommandFunc{} var regCmds = map[string]CommandFunc{}
@ -20,33 +20,33 @@ func register(name string, f CommandFunc) {
regCmds[name] = f regCmds[name] = f
} }
func pingCommand(c *client) error { func pingCommand(req *requestContext) error {
c.resp.writeStatus(PONG) req.resp.writeStatus(PONG)
return nil return nil
} }
func echoCommand(c *client) error { func echoCommand(req *requestContext) error {
if len(c.args) != 1 { if len(req.args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
c.resp.writeBulk(c.args[0]) req.resp.writeBulk(req.args[0])
return nil return nil
} }
func selectCommand(c *client) error { func selectCommand(req *requestContext) error {
if len(c.args) != 1 { if len(req.args) != 1 {
return ErrCmdParams return ErrCmdParams
} }
if index, err := strconv.Atoi(ledis.String(c.args[0])); err != nil { if index, err := strconv.Atoi(ledis.String(req.args[0])); err != nil {
return err return err
} else { } else {
if db, err := c.ldb.Select(index); err != nil { if db, err := req.ldb.Select(index); err != nil {
return err return err
} else { } else {
c.db = db req.db = db
c.resp.writeStatus(OK) req.resp.writeStatus(OK)
} }
} }
return nil return nil

200
server/request.go Normal file
View File

@ -0,0 +1,200 @@
package server
import (
"bytes"
"github.com/siddontang/go-log/log"
"github.com/siddontang/ledisdb/ledis"
"io"
"runtime"
"sync"
"time"
)
type responseWriter interface {
writeError(error)
writeStatus(string)
writeInteger(int64)
writeBulk([]byte)
writeArray([]interface{})
writeSliceArray([][]byte)
writeFVPairArray([]ledis.FVPair)
writeScorePairArray([]ledis.ScorePair, bool)
writeBulkFrom(int64, io.Reader)
flush()
}
type requestContext struct {
app *App
ldb *ledis.Ledis
db *ledis.DB
remoteAddr string
cmd string
args [][]byte
resp responseWriter
syncBuf bytes.Buffer
compressBuf []byte
finish chan interface{}
}
type requestHandler struct {
app *App
async bool
quit chan struct{}
jobs *sync.WaitGroup
reqs chan *requestContext
reqErr chan error
buf bytes.Buffer
}
func newRequestContext(app *App) *requestContext {
req := new(requestContext)
req.app = app
req.ldb = app.ldb
req.db, _ = app.ldb.Select(0) //use default db
req.compressBuf = make([]byte, 256)
req.finish = make(chan interface{}, 1)
return req
}
func newRequestHandler(app *App) *requestHandler {
hdl := new(requestHandler)
hdl.app = app
hdl.async = false
hdl.jobs = new(sync.WaitGroup)
hdl.quit = make(chan struct{})
hdl.reqs = make(chan *requestContext)
hdl.reqErr = make(chan error)
return hdl
}
func (h *requestHandler) asyncRun() {
if !h.async {
// todo ... not safe
h.async = true
go h.run()
}
}
func (h *requestHandler) close() {
if h.async {
close(h.quit)
h.jobs.Wait()
}
}
func (h *requestHandler) run() {
defer func() {
if e := recover(); e != nil {
buf := make([]byte, 4096)
n := runtime.Stack(buf, false)
buf = buf[0:n]
log.Fatal("request handler run panic %s:%v", buf, e)
}
}()
h.jobs.Add(1)
var req *requestContext
for !h.async {
select {
case req = <-h.reqs:
if req != nil {
h.performance(req)
}
case <-h.quit:
h.async = true
break
}
}
h.jobs.Done()
return
}
func (h *requestHandler) postRequest(req *requestContext) {
if h.async {
h.reqs <- req
} else {
h.performance(req)
}
<-req.finish
}
func (h *requestHandler) performance(req *requestContext) {
var err error
start := time.Now()
if len(req.cmd) == 0 {
err = ErrEmptyCommand
} else if exeCmd, ok := regCmds[req.cmd]; !ok {
err = ErrNotFound
} else {
go func() {
h.reqErr <- exeCmd(req)
}()
err = <-h.reqErr
}
duration := time.Since(start)
if h.app.access != nil {
fullCmd := h.catGenericCommand(req)
cost := duration.Nanoseconds() / 1000000
h.app.access.Log(req.remoteAddr, cost, fullCmd[:256], err)
}
if err != nil {
req.resp.writeError(err)
}
req.resp.flush()
req.finish <- nil
return
}
// func (h *requestHandler) catFullCommand(req *requestContext) []byte {
//
// // if strings.HasSuffix(cmd, "expire") {
// // catExpireCommand(c, buffer)
// // } else {
// // catGenericCommand(c, buffer)
// // }
//
// return h.catGenericCommand(req)
// }
func (h *requestHandler) catGenericCommand(req *requestContext) []byte {
buffer := h.buf
buffer.Reset()
buffer.Write([]byte(req.cmd))
nargs := len(req.args)
for i, arg := range req.args {
buffer.Write(arg)
if i != nargs-1 {
buffer.WriteByte(' ')
}
}
return buffer.Bytes()
}