2018-10-29 01:49:45 +03:00
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package server
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2016-03-05 02:08:16 +03:00
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import (
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"errors"
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"fmt"
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"io"
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"net"
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"os"
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2019-01-09 10:23:53 +03:00
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"sort"
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2016-03-05 02:08:16 +03:00
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"strconv"
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"strings"
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"sync"
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2018-11-11 02:16:04 +03:00
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"sync/atomic"
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2016-03-05 02:08:16 +03:00
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"time"
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2016-09-11 17:49:48 +03:00
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"github.com/tidwall/buntdb"
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2018-11-24 04:15:14 +03:00
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"github.com/tidwall/geojson"
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2019-01-09 10:23:53 +03:00
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"github.com/tidwall/gjson"
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2017-10-05 02:15:20 +03:00
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"github.com/tidwall/redcon"
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2016-03-28 18:57:41 +03:00
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"github.com/tidwall/resp"
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2018-10-11 00:25:40 +03:00
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"github.com/tidwall/tile38/internal/log"
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2016-03-05 02:08:16 +03:00
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)
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2016-03-19 17:16:19 +03:00
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type errAOFHook struct {
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err error
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}
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func (err errAOFHook) Error() string {
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return fmt.Sprintf("hook: %v", err.err)
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}
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2016-11-09 23:43:26 +03:00
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var errInvalidAOF = errors.New("invalid aof file")
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2018-10-29 01:49:45 +03:00
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func (server *Server) loadAOF() error {
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fi, err := server.aof.Stat()
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2016-04-01 02:26:36 +03:00
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if err != nil {
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return err
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}
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2016-03-05 02:08:16 +03:00
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start := time.Now()
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var count int
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defer func() {
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d := time.Now().Sub(start)
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ps := float64(count) / (float64(d) / float64(time.Second))
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2016-04-01 02:26:36 +03:00
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suf := []string{"bytes/s", "KB/s", "MB/s", "GB/s", "TB/s"}
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bps := float64(fi.Size()) / (float64(d) / float64(time.Second))
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for i := 0; bps > 1024; i++ {
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if len(suf) == 1 {
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break
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}
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bps /= 1024
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suf = suf[1:]
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}
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byteSpeed := fmt.Sprintf("%.0f %s", bps, suf[0])
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log.Infof("AOF loaded %d commands: %.2fs, %.0f/s, %s",
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count, float64(d)/float64(time.Second), ps, byteSpeed)
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2016-03-05 02:08:16 +03:00
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}()
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2017-10-05 02:15:20 +03:00
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var buf []byte
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var args [][]byte
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var packet [0xFFFF]byte
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2016-03-05 02:08:16 +03:00
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for {
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2018-10-29 01:49:45 +03:00
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n, err := server.aof.Read(packet[:])
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2016-03-05 02:08:16 +03:00
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if err != nil {
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if err == io.EOF {
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2017-10-05 02:15:20 +03:00
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if len(buf) > 0 {
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return io.ErrUnexpectedEOF
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}
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2016-03-05 02:08:16 +03:00
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return nil
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}
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return err
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}
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2018-10-29 01:49:45 +03:00
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server.aofsz += n
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2017-10-05 02:15:20 +03:00
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data := packet[:n]
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if len(buf) > 0 {
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data = append(buf, data...)
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2016-11-09 23:43:26 +03:00
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}
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2017-10-05 02:15:20 +03:00
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var complete bool
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for {
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complete, args, _, data, err = redcon.ReadNextCommand(data, args[:0])
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2016-11-09 23:43:26 +03:00
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if err != nil {
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return err
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}
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2017-10-05 02:15:20 +03:00
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if !complete {
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break
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2016-11-09 23:43:26 +03:00
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}
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2017-10-05 02:15:20 +03:00
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if len(args) > 0 {
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2018-11-15 19:15:39 +03:00
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var msg Message
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2018-10-29 01:49:45 +03:00
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msg.Args = msg.Args[:0]
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2017-10-05 02:15:20 +03:00
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for _, arg := range args {
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2018-10-29 01:49:45 +03:00
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msg.Args = append(msg.Args, string(arg))
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2017-10-05 02:15:20 +03:00
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}
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2018-10-29 01:49:45 +03:00
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if _, _, err := server.command(&msg, nil); err != nil {
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2017-10-05 02:15:20 +03:00
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if commandErrIsFatal(err) {
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return err
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}
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}
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count++
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2016-11-09 23:43:26 +03:00
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}
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2016-03-19 17:16:19 +03:00
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}
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2017-10-05 02:15:20 +03:00
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if len(data) > 0 {
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buf = append(buf[:0], data...)
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} else if len(buf) > 0 {
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buf = buf[:0]
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2016-03-05 02:08:16 +03:00
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}
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}
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}
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2017-10-05 02:15:20 +03:00
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2016-03-30 19:32:38 +03:00
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func commandErrIsFatal(err error) bool {
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// FSET (and other writable commands) may return errors that we need
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// to ignore during the loading process. These errors may occur (though unlikely)
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// due to the aof rewrite operation.
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switch err {
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case errKeyNotFound, errIDNotFound:
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return false
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}
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return true
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}
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2019-09-04 03:01:26 +03:00
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// flushAOF flushes all aof buffer data to disk. Set sync to true to sync the
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// fsync the file.
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2019-03-10 20:48:14 +03:00
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func (server *Server) flushAOF(sync bool) {
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2018-10-29 01:49:45 +03:00
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if len(server.aofbuf) > 0 {
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_, err := server.aof.Write(server.aofbuf)
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if err != nil {
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panic(err)
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}
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2019-03-10 20:48:14 +03:00
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if sync {
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if err := server.aof.Sync(); err != nil {
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panic(err)
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}
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}
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2019-09-04 03:01:26 +03:00
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if cap(server.aofbuf) > 1024*1024*32 {
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server.aofbuf = make([]byte, 0, 1024*1024*32)
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} else {
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server.aofbuf = server.aofbuf[:0]
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}
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2018-10-29 01:49:45 +03:00
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}
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}
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2018-11-24 01:53:33 +03:00
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func (server *Server) writeAOF(args []string, d *commandDetails) error {
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2018-08-14 03:05:30 +03:00
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if d != nil && !d.updated {
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// just ignore writes if the command did not update
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return nil
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2016-03-19 17:16:19 +03:00
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}
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2018-10-29 01:49:45 +03:00
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if server.shrinking {
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nargs := make([]string, len(args))
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copy(nargs, args)
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server.shrinklog = append(server.shrinklog, nargs)
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2016-03-28 18:57:41 +03:00
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}
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2018-10-29 01:49:45 +03:00
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if server.aof != nil {
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2018-11-11 02:16:04 +03:00
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atomic.StoreInt32(&server.aofdirty, 1) // prewrite optimization flag
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2018-10-29 01:49:45 +03:00
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n := len(server.aofbuf)
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server.aofbuf = redcon.AppendArray(server.aofbuf, len(args))
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for _, arg := range args {
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server.aofbuf = redcon.AppendBulkString(server.aofbuf, arg)
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2018-04-11 20:53:36 +03:00
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}
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2018-10-29 01:49:45 +03:00
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server.aofsz += len(server.aofbuf) - n
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2016-03-20 04:31:59 +03:00
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}
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2016-03-05 02:08:16 +03:00
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// notify aof live connections that we have new data
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2018-10-29 01:49:45 +03:00
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server.fcond.L.Lock()
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server.fcond.Broadcast()
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server.fcond.L.Unlock()
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2016-03-05 02:08:16 +03:00
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2018-08-14 03:05:30 +03:00
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// process geofences
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2016-03-05 02:08:16 +03:00
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if d != nil {
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2018-08-14 03:05:30 +03:00
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// webhook geofences
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2018-10-29 01:49:45 +03:00
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if server.config.followHost() == "" {
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2018-08-14 03:05:30 +03:00
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// for leader only
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if d.parent {
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// queue children
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for _, d := range d.children {
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2018-10-29 01:49:45 +03:00
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if err := server.queueHooks(d); err != nil {
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2018-08-14 03:05:30 +03:00
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return err
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}
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}
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} else {
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// queue parent
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2018-10-29 01:49:45 +03:00
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if err := server.queueHooks(d); err != nil {
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2018-08-14 03:05:30 +03:00
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return err
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}
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}
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}
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2018-11-23 11:39:04 +03:00
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2018-08-14 03:05:30 +03:00
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// live geofences
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2018-10-29 01:49:45 +03:00
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server.lcond.L.Lock()
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2018-11-24 01:38:49 +03:00
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if len(server.lives) > 0 {
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if d.parent {
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// queue children
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for _, d := range d.children {
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server.lstack = append(server.lstack, d)
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}
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} else {
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// queue parent
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2018-10-29 01:49:45 +03:00
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server.lstack = append(server.lstack, d)
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2016-12-29 17:53:01 +03:00
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}
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2018-11-24 01:38:49 +03:00
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server.lcond.Broadcast()
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2016-12-29 17:53:01 +03:00
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}
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2018-10-29 01:49:45 +03:00
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server.lcond.L.Unlock()
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2016-03-05 02:08:16 +03:00
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}
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2016-04-02 17:20:30 +03:00
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return nil
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}
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2016-03-19 17:16:19 +03:00
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2018-11-24 04:15:14 +03:00
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func (server *Server) getQueueCandidates(d *commandDetails) []*Hook {
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var candidates []*Hook
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// add the hooks with "outside" detection
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if len(server.hooksOut) > 0 {
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for _, hook := range server.hooksOut {
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if hook.Key == d.key {
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candidates = append(candidates, hook)
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}
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}
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}
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// search the hook spatial tree
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for _, obj := range []geojson.Object{d.obj, d.oldObj} {
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if obj == nil {
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continue
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}
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rect := obj.Rect()
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server.hookTree.Search(
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[]float64{rect.Min.X, rect.Min.Y},
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[]float64{rect.Max.X, rect.Max.Y},
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func(_, _ []float64, value interface{}) bool {
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hook := value.(*Hook)
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2018-11-30 02:15:26 +03:00
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if hook.Key != d.key {
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return true
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}
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2018-11-24 04:15:14 +03:00
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var found bool
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for _, candidate := range candidates {
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if candidate == hook {
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found = true
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break
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}
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}
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if !found {
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candidates = append(candidates, hook)
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}
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return true
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},
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)
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}
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return candidates
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}
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2018-11-24 01:53:33 +03:00
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func (server *Server) queueHooks(d *commandDetails) error {
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2019-01-09 10:23:53 +03:00
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// Create the slices that will store all messages and hooks
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var cmsgs, wmsgs []string
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var whooks []*Hook
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2018-11-24 04:15:14 +03:00
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2019-01-09 10:23:53 +03:00
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// Compile a slice of potential hook recipients
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2018-11-24 04:15:14 +03:00
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candidates := server.getQueueCandidates(d)
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for _, hook := range candidates {
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2019-01-09 10:23:53 +03:00
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// Calculate all matching fence messages for all candidates and append
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// them to the appropriate message slice
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2018-11-24 04:15:14 +03:00
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msgs := FenceMatch(hook.Name, hook.ScanWriter, hook.Fence, hook.Metas, d)
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if len(msgs) > 0 {
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if hook.channel {
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2019-01-09 10:23:53 +03:00
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cmsgs = append(cmsgs, msgs...)
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2018-11-24 04:15:14 +03:00
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} else {
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2019-01-09 10:23:53 +03:00
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wmsgs = append(wmsgs, msgs...)
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whooks = append(whooks, hook)
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2016-09-11 17:49:48 +03:00
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}
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2016-04-02 17:20:30 +03:00
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}
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}
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2019-01-09 10:23:53 +03:00
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// Return nil if there are no messages to be sent
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if len(cmsgs)+len(wmsgs) == 0 {
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2016-09-11 17:49:48 +03:00
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return nil
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}
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2019-01-09 10:23:53 +03:00
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// Sort both message channel and webhook message slices
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2019-01-09 20:35:50 +03:00
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if len(cmsgs) > 1 {
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sortMsgs(cmsgs)
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}
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if len(wmsgs) > 1 {
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sortMsgs(wmsgs)
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}
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2019-01-09 10:23:53 +03:00
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// Publish all channel messages if any exist
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if len(cmsgs) > 0 {
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for _, m := range cmsgs {
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server.Publish(gjson.Get(m, "hook").String(), m)
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}
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}
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// Queue the webhook messages in the buntdb database
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2018-10-29 01:49:45 +03:00
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err := server.qdb.Update(func(tx *buntdb.Tx) error {
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2019-01-09 10:23:53 +03:00
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for _, msg := range wmsgs {
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2018-10-29 01:49:45 +03:00
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server.qidx++ // increment the log id
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key := hookLogPrefix + uint64ToString(server.qidx)
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2019-01-09 10:23:53 +03:00
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_, _, err := tx.Set(key, msg, hookLogSetDefaults)
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2016-09-11 17:49:48 +03:00
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if err != nil {
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return err
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}
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2018-10-29 01:49:45 +03:00
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log.Debugf("queued hook: %d", server.qidx)
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2016-09-11 17:49:48 +03:00
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}
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2018-10-29 01:49:45 +03:00
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_, _, err := tx.Set("hook:idx", uint64ToString(server.qidx), nil)
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2016-09-11 17:49:48 +03:00
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if err != nil {
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return err
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}
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return nil
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})
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if err != nil {
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return err
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}
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// all the messages have been queued.
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// notify the hooks
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2019-01-09 10:23:53 +03:00
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for _, hook := range whooks {
|
2016-09-11 17:49:48 +03:00
|
|
|
hook.Signal()
|
|
|
|
}
|
2016-03-05 02:08:16 +03:00
|
|
|
return nil
|
|
|
|
}
|
2019-01-09 10:23:53 +03:00
|
|
|
|
2019-01-09 20:35:50 +03:00
|
|
|
// sortMsgs sorts passed notification messages by their detect and hook fields
|
2019-01-09 10:23:53 +03:00
|
|
|
func sortMsgs(msgs []string) {
|
2019-01-09 20:35:50 +03:00
|
|
|
sort.SliceStable(msgs, func(i, j int) bool {
|
2019-01-09 10:23:53 +03:00
|
|
|
detectI := msgDetectCode(gjson.Get(msgs[i], "detect").String())
|
|
|
|
detectJ := msgDetectCode(gjson.Get(msgs[j], "detect").String())
|
|
|
|
if detectI < detectJ {
|
|
|
|
return true
|
|
|
|
}
|
|
|
|
if detectI > detectJ {
|
|
|
|
return false
|
|
|
|
}
|
|
|
|
hookI := gjson.Get(msgs[i], "hook").String()
|
|
|
|
hookJ := gjson.Get(msgs[j], "hook").String()
|
|
|
|
return hookI < hookJ
|
|
|
|
})
|
|
|
|
}
|
|
|
|
|
2019-01-09 20:35:50 +03:00
|
|
|
// msgDetectCode returns a weight value for the passed detect value
|
|
|
|
func msgDetectCode(detect string) int {
|
|
|
|
switch detect {
|
2019-01-09 10:23:53 +03:00
|
|
|
case "exit":
|
|
|
|
return 1
|
|
|
|
case "outside":
|
|
|
|
return 2
|
|
|
|
case "enter":
|
|
|
|
return 3
|
|
|
|
case "inside":
|
|
|
|
return 4
|
|
|
|
default:
|
|
|
|
return 0
|
|
|
|
}
|
|
|
|
}
|
2016-03-05 02:08:16 +03:00
|
|
|
|
2016-09-11 17:49:48 +03:00
|
|
|
// Converts string to an integer
|
|
|
|
func stringToUint64(s string) uint64 {
|
|
|
|
n, _ := strconv.ParseUint(s, 10, 64)
|
|
|
|
return n
|
|
|
|
}
|
|
|
|
|
|
|
|
// Converts a uint to a string
|
|
|
|
func uint64ToString(u uint64) string {
|
|
|
|
s := strings.Repeat("0", 20) + strconv.FormatUint(u, 10)
|
|
|
|
return s[len(s)-20:]
|
|
|
|
}
|
|
|
|
|
2016-03-05 02:08:16 +03:00
|
|
|
type liveAOFSwitches struct {
|
|
|
|
pos int64
|
|
|
|
}
|
|
|
|
|
|
|
|
func (s liveAOFSwitches) Error() string {
|
2018-08-14 03:05:30 +03:00
|
|
|
return goingLive
|
2016-03-05 02:08:16 +03:00
|
|
|
}
|
|
|
|
|
2018-10-29 01:49:45 +03:00
|
|
|
func (server *Server) cmdAOFMD5(msg *Message) (res resp.Value, err error) {
|
2016-03-05 02:08:16 +03:00
|
|
|
start := time.Now()
|
2018-10-29 01:49:45 +03:00
|
|
|
vs := msg.Args[1:]
|
2016-04-01 02:26:36 +03:00
|
|
|
var ok bool
|
2016-03-05 02:08:16 +03:00
|
|
|
var spos, ssize string
|
Lua scripting feature. (#224)
* Start on lua scripting
* Implement evalsha, script load, script exists, and script flush
* Type conversions from lua to resp/json.
Refactor to make luastate and luascripts persistent in the controller.
* Change controller.command and all underlying commands to return resp.Value.
Serialize only during the ouput.
* First stab at tile38 call from lua
* Change tile38 into tile38.call in Lua
* Property return errors from scripts
* Minor refactoring. No locking on script run
* Cleanup/refactoring
* Create a pool of 5 lua states, allow for more as needed. Refactor.
* Use safe map for scripts. Add a limit for max number of lua states. Refactor.
* Refactor
* Refactor script commands into atomic, read-only, and non-atomic classes.
Proper locking for all three classes.
Add tests for scripts
* More tests for scripts
* Properly escape newlines in lua-produced errors
* Better test for readonly failure
* Correctly convert ok/err messages between lua and resp.
Add pcall, sha1hex, error_reply, status_reply functions to tile38 namespace in lua.
* Add pcall test. Change writeErr to work with string argument
* Make sure eval/evalsha never attempt to write AOF
* Add eval-set and eval-get to benchmarks
* Fix eval benchmark tests, add more
* Improve benchmarks
* Optimizations and refactoring.
* Add lua memtest
* Typo
* Add dependency
* golint fixes
* gofmt fixes
* Add scripting commands to the core/commands.json
* Use ARGV for args inside lua
2017-10-05 18:20:40 +03:00
|
|
|
|
2016-04-01 02:26:36 +03:00
|
|
|
if vs, spos, ok = tokenval(vs); !ok || spos == "" {
|
2018-10-29 01:49:45 +03:00
|
|
|
return NOMessage, errInvalidNumberOfArguments
|
2016-03-05 02:08:16 +03:00
|
|
|
}
|
2016-04-01 02:26:36 +03:00
|
|
|
if vs, ssize, ok = tokenval(vs); !ok || ssize == "" {
|
2018-10-29 01:49:45 +03:00
|
|
|
return NOMessage, errInvalidNumberOfArguments
|
2016-03-05 02:08:16 +03:00
|
|
|
}
|
2016-04-01 02:26:36 +03:00
|
|
|
if len(vs) != 0 {
|
2018-10-29 01:49:45 +03:00
|
|
|
return NOMessage, errInvalidNumberOfArguments
|
2016-03-05 02:08:16 +03:00
|
|
|
}
|
|
|
|
pos, err := strconv.ParseInt(spos, 10, 64)
|
|
|
|
if err != nil || pos < 0 {
|
2018-10-29 01:49:45 +03:00
|
|
|
return NOMessage, errInvalidArgument(spos)
|
2016-03-05 02:08:16 +03:00
|
|
|
}
|
|
|
|
size, err := strconv.ParseInt(ssize, 10, 64)
|
|
|
|
if err != nil || size < 0 {
|
2018-10-29 01:49:45 +03:00
|
|
|
return NOMessage, errInvalidArgument(ssize)
|
2016-03-05 02:08:16 +03:00
|
|
|
}
|
2018-10-29 01:49:45 +03:00
|
|
|
sum, err := server.checksum(pos, size)
|
2016-03-05 02:08:16 +03:00
|
|
|
if err != nil {
|
2018-10-29 01:49:45 +03:00
|
|
|
return NOMessage, err
|
2016-03-05 02:08:16 +03:00
|
|
|
}
|
2016-04-01 02:26:36 +03:00
|
|
|
switch msg.OutputType {
|
2018-10-29 01:49:45 +03:00
|
|
|
case JSON:
|
Lua scripting feature. (#224)
* Start on lua scripting
* Implement evalsha, script load, script exists, and script flush
* Type conversions from lua to resp/json.
Refactor to make luastate and luascripts persistent in the controller.
* Change controller.command and all underlying commands to return resp.Value.
Serialize only during the ouput.
* First stab at tile38 call from lua
* Change tile38 into tile38.call in Lua
* Property return errors from scripts
* Minor refactoring. No locking on script run
* Cleanup/refactoring
* Create a pool of 5 lua states, allow for more as needed. Refactor.
* Use safe map for scripts. Add a limit for max number of lua states. Refactor.
* Refactor
* Refactor script commands into atomic, read-only, and non-atomic classes.
Proper locking for all three classes.
Add tests for scripts
* More tests for scripts
* Properly escape newlines in lua-produced errors
* Better test for readonly failure
* Correctly convert ok/err messages between lua and resp.
Add pcall, sha1hex, error_reply, status_reply functions to tile38 namespace in lua.
* Add pcall test. Change writeErr to work with string argument
* Make sure eval/evalsha never attempt to write AOF
* Add eval-set and eval-get to benchmarks
* Fix eval benchmark tests, add more
* Improve benchmarks
* Optimizations and refactoring.
* Add lua memtest
* Typo
* Add dependency
* golint fixes
* gofmt fixes
* Add scripting commands to the core/commands.json
* Use ARGV for args inside lua
2017-10-05 18:20:40 +03:00
|
|
|
res = resp.StringValue(
|
|
|
|
fmt.Sprintf(`{"ok":true,"md5":"%s","elapsed":"%s"}`, sum, time.Now().Sub(start)))
|
2018-10-29 01:49:45 +03:00
|
|
|
case RESP:
|
Lua scripting feature. (#224)
* Start on lua scripting
* Implement evalsha, script load, script exists, and script flush
* Type conversions from lua to resp/json.
Refactor to make luastate and luascripts persistent in the controller.
* Change controller.command and all underlying commands to return resp.Value.
Serialize only during the ouput.
* First stab at tile38 call from lua
* Change tile38 into tile38.call in Lua
* Property return errors from scripts
* Minor refactoring. No locking on script run
* Cleanup/refactoring
* Create a pool of 5 lua states, allow for more as needed. Refactor.
* Use safe map for scripts. Add a limit for max number of lua states. Refactor.
* Refactor
* Refactor script commands into atomic, read-only, and non-atomic classes.
Proper locking for all three classes.
Add tests for scripts
* More tests for scripts
* Properly escape newlines in lua-produced errors
* Better test for readonly failure
* Correctly convert ok/err messages between lua and resp.
Add pcall, sha1hex, error_reply, status_reply functions to tile38 namespace in lua.
* Add pcall test. Change writeErr to work with string argument
* Make sure eval/evalsha never attempt to write AOF
* Add eval-set and eval-get to benchmarks
* Fix eval benchmark tests, add more
* Improve benchmarks
* Optimizations and refactoring.
* Add lua memtest
* Typo
* Add dependency
* golint fixes
* gofmt fixes
* Add scripting commands to the core/commands.json
* Use ARGV for args inside lua
2017-10-05 18:20:40 +03:00
|
|
|
res = resp.SimpleStringValue(sum)
|
2016-04-01 02:26:36 +03:00
|
|
|
}
|
|
|
|
return res, nil
|
2016-03-05 02:08:16 +03:00
|
|
|
}
|
|
|
|
|
2018-10-29 01:49:45 +03:00
|
|
|
func (server *Server) cmdAOF(msg *Message) (res resp.Value, err error) {
|
|
|
|
if server.aof == nil {
|
|
|
|
return NOMessage, errors.New("aof disabled")
|
2018-04-11 20:53:36 +03:00
|
|
|
}
|
2018-10-29 01:49:45 +03:00
|
|
|
vs := msg.Args[1:]
|
Lua scripting feature. (#224)
* Start on lua scripting
* Implement evalsha, script load, script exists, and script flush
* Type conversions from lua to resp/json.
Refactor to make luastate and luascripts persistent in the controller.
* Change controller.command and all underlying commands to return resp.Value.
Serialize only during the ouput.
* First stab at tile38 call from lua
* Change tile38 into tile38.call in Lua
* Property return errors from scripts
* Minor refactoring. No locking on script run
* Cleanup/refactoring
* Create a pool of 5 lua states, allow for more as needed. Refactor.
* Use safe map for scripts. Add a limit for max number of lua states. Refactor.
* Refactor
* Refactor script commands into atomic, read-only, and non-atomic classes.
Proper locking for all three classes.
Add tests for scripts
* More tests for scripts
* Properly escape newlines in lua-produced errors
* Better test for readonly failure
* Correctly convert ok/err messages between lua and resp.
Add pcall, sha1hex, error_reply, status_reply functions to tile38 namespace in lua.
* Add pcall test. Change writeErr to work with string argument
* Make sure eval/evalsha never attempt to write AOF
* Add eval-set and eval-get to benchmarks
* Fix eval benchmark tests, add more
* Improve benchmarks
* Optimizations and refactoring.
* Add lua memtest
* Typo
* Add dependency
* golint fixes
* gofmt fixes
* Add scripting commands to the core/commands.json
* Use ARGV for args inside lua
2017-10-05 18:20:40 +03:00
|
|
|
|
2016-04-01 02:26:36 +03:00
|
|
|
var ok bool
|
2016-03-05 02:08:16 +03:00
|
|
|
var spos string
|
2016-04-01 02:26:36 +03:00
|
|
|
if vs, spos, ok = tokenval(vs); !ok || spos == "" {
|
2018-10-29 01:49:45 +03:00
|
|
|
return NOMessage, errInvalidNumberOfArguments
|
2016-03-05 02:08:16 +03:00
|
|
|
}
|
2016-04-01 02:26:36 +03:00
|
|
|
if len(vs) != 0 {
|
2018-10-29 01:49:45 +03:00
|
|
|
return NOMessage, errInvalidNumberOfArguments
|
2016-03-05 02:08:16 +03:00
|
|
|
}
|
|
|
|
pos, err := strconv.ParseInt(spos, 10, 64)
|
|
|
|
if err != nil || pos < 0 {
|
2018-10-29 01:49:45 +03:00
|
|
|
return NOMessage, errInvalidArgument(spos)
|
2016-03-05 02:08:16 +03:00
|
|
|
}
|
2018-10-29 01:49:45 +03:00
|
|
|
f, err := os.Open(server.aof.Name())
|
2016-03-05 02:08:16 +03:00
|
|
|
if err != nil {
|
2018-10-29 01:49:45 +03:00
|
|
|
return NOMessage, err
|
2016-03-05 02:08:16 +03:00
|
|
|
}
|
|
|
|
defer f.Close()
|
|
|
|
n, err := f.Seek(0, 2)
|
|
|
|
if err != nil {
|
2018-10-29 01:49:45 +03:00
|
|
|
return NOMessage, err
|
2016-03-05 02:08:16 +03:00
|
|
|
}
|
|
|
|
if n < pos {
|
2018-10-29 01:49:45 +03:00
|
|
|
return NOMessage, errors.New("pos is too big, must be less that the aof_size of leader")
|
2016-03-05 02:08:16 +03:00
|
|
|
}
|
|
|
|
var s liveAOFSwitches
|
|
|
|
s.pos = pos
|
2018-10-29 01:49:45 +03:00
|
|
|
return NOMessage, s
|
2016-03-05 02:08:16 +03:00
|
|
|
}
|
|
|
|
|
2018-10-29 01:49:45 +03:00
|
|
|
func (server *Server) liveAOF(pos int64, conn net.Conn, rd *PipelineReader, msg *Message) error {
|
|
|
|
server.mu.Lock()
|
|
|
|
server.aofconnM[conn] = true
|
|
|
|
server.mu.Unlock()
|
2016-04-01 04:20:42 +03:00
|
|
|
defer func() {
|
2018-10-29 01:49:45 +03:00
|
|
|
server.mu.Lock()
|
|
|
|
delete(server.aofconnM, conn)
|
|
|
|
server.mu.Unlock()
|
2016-04-01 04:20:42 +03:00
|
|
|
conn.Close()
|
|
|
|
}()
|
|
|
|
|
2016-04-01 02:26:36 +03:00
|
|
|
if _, err := conn.Write([]byte("+OK\r\n")); err != nil {
|
|
|
|
return err
|
2016-03-05 02:08:16 +03:00
|
|
|
}
|
2016-04-01 02:26:36 +03:00
|
|
|
|
2018-10-29 01:49:45 +03:00
|
|
|
server.mu.RLock()
|
|
|
|
f, err := os.Open(server.aof.Name())
|
|
|
|
server.mu.RUnlock()
|
2016-03-05 02:08:16 +03:00
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
defer f.Close()
|
|
|
|
if _, err := f.Seek(pos, 0); err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
cond := sync.NewCond(&sync.Mutex{})
|
|
|
|
var mustQuit bool
|
|
|
|
go func() {
|
|
|
|
defer func() {
|
|
|
|
cond.L.Lock()
|
|
|
|
mustQuit = true
|
|
|
|
cond.Broadcast()
|
|
|
|
cond.L.Unlock()
|
|
|
|
}()
|
|
|
|
for {
|
2017-10-01 05:34:25 +03:00
|
|
|
vs, err := rd.ReadMessages()
|
2016-03-05 02:08:16 +03:00
|
|
|
if err != nil {
|
|
|
|
if err != io.EOF {
|
|
|
|
log.Error(err)
|
|
|
|
}
|
|
|
|
return
|
|
|
|
}
|
2017-10-01 05:34:25 +03:00
|
|
|
for _, v := range vs {
|
2018-10-29 01:49:45 +03:00
|
|
|
switch v.Command() {
|
2017-10-01 05:34:25 +03:00
|
|
|
default:
|
|
|
|
log.Error("received a live command that was not QUIT")
|
|
|
|
return
|
|
|
|
case "quit", "":
|
|
|
|
return
|
|
|
|
}
|
2016-03-05 02:08:16 +03:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}()
|
|
|
|
go func() {
|
|
|
|
defer func() {
|
|
|
|
cond.L.Lock()
|
|
|
|
mustQuit = true
|
|
|
|
cond.Broadcast()
|
|
|
|
cond.L.Unlock()
|
|
|
|
}()
|
|
|
|
err := func() error {
|
|
|
|
_, err := io.Copy(conn, f)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
2016-04-01 03:58:02 +03:00
|
|
|
|
|
|
|
b := make([]byte, 4096)
|
|
|
|
// The reader needs to be OK with the eof not
|
2016-03-05 02:08:16 +03:00
|
|
|
for {
|
2016-04-01 03:58:02 +03:00
|
|
|
n, err := f.Read(b)
|
|
|
|
if err != io.EOF && n > 0 {
|
2016-03-28 18:57:41 +03:00
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
2016-04-01 03:58:02 +03:00
|
|
|
if _, err := conn.Write(b[:n]); err != nil {
|
2016-03-05 02:08:16 +03:00
|
|
|
return err
|
|
|
|
}
|
|
|
|
continue
|
|
|
|
}
|
2018-10-29 01:49:45 +03:00
|
|
|
server.fcond.L.Lock()
|
|
|
|
server.fcond.Wait()
|
|
|
|
server.fcond.L.Unlock()
|
2016-03-05 02:08:16 +03:00
|
|
|
}
|
|
|
|
}()
|
|
|
|
if err != nil {
|
|
|
|
if !strings.Contains(err.Error(), "use of closed network connection") &&
|
|
|
|
!strings.Contains(err.Error(), "bad file descriptor") {
|
|
|
|
log.Error(err)
|
|
|
|
}
|
|
|
|
return
|
|
|
|
}
|
|
|
|
}()
|
|
|
|
for {
|
|
|
|
cond.L.Lock()
|
|
|
|
if mustQuit {
|
|
|
|
cond.L.Unlock()
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
cond.Wait()
|
|
|
|
cond.L.Unlock()
|
|
|
|
}
|
|
|
|
}
|