mirror of https://github.com/tidwall/tile38.git
526 lines
11 KiB
Go
526 lines
11 KiB
Go
package server
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"io"
|
|
"net"
|
|
"os"
|
|
"sort"
|
|
"strconv"
|
|
"strings"
|
|
"sync"
|
|
"sync/atomic"
|
|
"time"
|
|
|
|
"github.com/tidwall/buntdb"
|
|
"github.com/tidwall/geojson"
|
|
"github.com/tidwall/gjson"
|
|
"github.com/tidwall/redcon"
|
|
"github.com/tidwall/resp"
|
|
"github.com/tidwall/tile38/internal/log"
|
|
)
|
|
|
|
type errAOFHook struct {
|
|
err error
|
|
}
|
|
|
|
func (err errAOFHook) Error() string {
|
|
return fmt.Sprintf("hook: %v", err.err)
|
|
}
|
|
|
|
var errInvalidAOF = errors.New("invalid aof file")
|
|
|
|
func (server *Server) loadAOF() error {
|
|
fi, err := server.aof.Stat()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
start := time.Now()
|
|
var count int
|
|
defer func() {
|
|
d := time.Now().Sub(start)
|
|
ps := float64(count) / (float64(d) / float64(time.Second))
|
|
suf := []string{"bytes/s", "KB/s", "MB/s", "GB/s", "TB/s"}
|
|
bps := float64(fi.Size()) / (float64(d) / float64(time.Second))
|
|
for i := 0; bps > 1024; i++ {
|
|
if len(suf) == 1 {
|
|
break
|
|
}
|
|
bps /= 1024
|
|
suf = suf[1:]
|
|
}
|
|
byteSpeed := fmt.Sprintf("%.0f %s", bps, suf[0])
|
|
log.Infof("AOF loaded %d commands: %.2fs, %.0f/s, %s",
|
|
count, float64(d)/float64(time.Second), ps, byteSpeed)
|
|
}()
|
|
var buf []byte
|
|
var args [][]byte
|
|
var packet [0xFFFF]byte
|
|
for {
|
|
n, err := server.aof.Read(packet[:])
|
|
if err != nil {
|
|
if err == io.EOF {
|
|
if len(buf) > 0 {
|
|
return io.ErrUnexpectedEOF
|
|
}
|
|
return nil
|
|
}
|
|
return err
|
|
}
|
|
server.aofsz += n
|
|
data := packet[:n]
|
|
if len(buf) > 0 {
|
|
data = append(buf, data...)
|
|
}
|
|
var complete bool
|
|
for {
|
|
complete, args, _, data, err = redcon.ReadNextCommand(data, args[:0])
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if !complete {
|
|
break
|
|
}
|
|
if len(args) > 0 {
|
|
var msg Message
|
|
msg.Args = msg.Args[:0]
|
|
for _, arg := range args {
|
|
msg.Args = append(msg.Args, string(arg))
|
|
}
|
|
if _, _, err := server.command(&msg, nil); err != nil {
|
|
if commandErrIsFatal(err) {
|
|
return err
|
|
}
|
|
}
|
|
count++
|
|
}
|
|
}
|
|
if len(data) > 0 {
|
|
buf = append(buf[:0], data...)
|
|
} else if len(buf) > 0 {
|
|
buf = buf[:0]
|
|
}
|
|
}
|
|
}
|
|
|
|
func commandErrIsFatal(err error) bool {
|
|
// FSET (and other writable commands) may return errors that we need
|
|
// to ignore during the loading process. These errors may occur (though unlikely)
|
|
// due to the aof rewrite operation.
|
|
switch err {
|
|
case errKeyNotFound, errIDNotFound:
|
|
return false
|
|
}
|
|
return true
|
|
}
|
|
|
|
func (server *Server) flushAOF() {
|
|
if len(server.aofbuf) > 0 {
|
|
_, err := server.aof.Write(server.aofbuf)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
server.aofbuf = server.aofbuf[:0]
|
|
}
|
|
}
|
|
|
|
func (server *Server) writeAOF(args []string, d *commandDetails) error {
|
|
|
|
if d != nil && !d.updated {
|
|
// just ignore writes if the command did not update
|
|
return nil
|
|
}
|
|
|
|
if server.shrinking {
|
|
nargs := make([]string, len(args))
|
|
copy(nargs, args)
|
|
server.shrinklog = append(server.shrinklog, nargs)
|
|
}
|
|
|
|
if server.aof != nil {
|
|
atomic.StoreInt32(&server.aofdirty, 1) // prewrite optimization flag
|
|
n := len(server.aofbuf)
|
|
server.aofbuf = redcon.AppendArray(server.aofbuf, len(args))
|
|
for _, arg := range args {
|
|
server.aofbuf = redcon.AppendBulkString(server.aofbuf, arg)
|
|
}
|
|
server.aofsz += len(server.aofbuf) - n
|
|
}
|
|
|
|
// notify aof live connections that we have new data
|
|
server.fcond.L.Lock()
|
|
server.fcond.Broadcast()
|
|
server.fcond.L.Unlock()
|
|
|
|
// process geofences
|
|
if d != nil {
|
|
// webhook geofences
|
|
if server.config.followHost() == "" {
|
|
// for leader only
|
|
if d.parent {
|
|
// queue children
|
|
for _, d := range d.children {
|
|
if err := server.queueHooks(d); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
} else {
|
|
// queue parent
|
|
if err := server.queueHooks(d); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
|
|
// live geofences
|
|
server.lcond.L.Lock()
|
|
if len(server.lives) > 0 {
|
|
if d.parent {
|
|
// queue children
|
|
for _, d := range d.children {
|
|
server.lstack = append(server.lstack, d)
|
|
}
|
|
} else {
|
|
// queue parent
|
|
server.lstack = append(server.lstack, d)
|
|
}
|
|
server.lcond.Broadcast()
|
|
}
|
|
server.lcond.L.Unlock()
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (server *Server) getQueueCandidates(d *commandDetails) []*Hook {
|
|
var candidates []*Hook
|
|
// add the hooks with "outside" detection
|
|
if len(server.hooksOut) > 0 {
|
|
for _, hook := range server.hooksOut {
|
|
if hook.Key == d.key {
|
|
candidates = append(candidates, hook)
|
|
}
|
|
}
|
|
}
|
|
// search the hook spatial tree
|
|
for _, obj := range []geojson.Object{d.obj, d.oldObj} {
|
|
if obj == nil {
|
|
continue
|
|
}
|
|
rect := obj.Rect()
|
|
server.hookTree.Search(
|
|
[]float64{rect.Min.X, rect.Min.Y},
|
|
[]float64{rect.Max.X, rect.Max.Y},
|
|
func(_, _ []float64, value interface{}) bool {
|
|
hook := value.(*Hook)
|
|
if hook.Key != d.key {
|
|
return true
|
|
}
|
|
var found bool
|
|
for _, candidate := range candidates {
|
|
if candidate == hook {
|
|
found = true
|
|
break
|
|
}
|
|
}
|
|
if !found {
|
|
candidates = append(candidates, hook)
|
|
}
|
|
return true
|
|
},
|
|
)
|
|
}
|
|
return candidates
|
|
}
|
|
|
|
func (server *Server) queueHooks(d *commandDetails) error {
|
|
// Create the slices that will store all messages and hooks
|
|
var cmsgs, wmsgs []string
|
|
var whooks []*Hook
|
|
|
|
// Compile a slice of potential hook recipients
|
|
candidates := server.getQueueCandidates(d)
|
|
for _, hook := range candidates {
|
|
// Calculate all matching fence messages for all candidates and append
|
|
// them to the appropriate message slice
|
|
msgs := FenceMatch(hook.Name, hook.ScanWriter, hook.Fence, hook.Metas, d)
|
|
if len(msgs) > 0 {
|
|
if hook.channel {
|
|
cmsgs = append(cmsgs, msgs...)
|
|
} else {
|
|
wmsgs = append(wmsgs, msgs...)
|
|
whooks = append(whooks, hook)
|
|
}
|
|
}
|
|
}
|
|
|
|
// Return nil if there are no messages to be sent
|
|
if len(cmsgs)+len(wmsgs) == 0 {
|
|
return nil
|
|
}
|
|
|
|
// Sort both message channel and webhook message slices
|
|
sortMsgs(cmsgs)
|
|
sortMsgs(wmsgs)
|
|
|
|
// Publish all channel messages if any exist
|
|
if len(cmsgs) > 0 {
|
|
for _, m := range cmsgs {
|
|
server.Publish(gjson.Get(m, "hook").String(), m)
|
|
}
|
|
}
|
|
|
|
// Queue the webhook messages in the buntdb database
|
|
err := server.qdb.Update(func(tx *buntdb.Tx) error {
|
|
for _, msg := range wmsgs {
|
|
server.qidx++ // increment the log id
|
|
key := hookLogPrefix + uint64ToString(server.qidx)
|
|
_, _, err := tx.Set(key, msg, hookLogSetDefaults)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
log.Debugf("queued hook: %d", server.qidx)
|
|
}
|
|
_, _, err := tx.Set("hook:idx", uint64ToString(server.qidx), nil)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
})
|
|
if err != nil {
|
|
return err
|
|
}
|
|
// all the messages have been queued.
|
|
// notify the hooks
|
|
for _, hook := range whooks {
|
|
hook.Signal()
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func sortMsgs(msgs []string) {
|
|
sort.Slice(msgs, func(i, j int) bool {
|
|
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
|
|
})
|
|
}
|
|
|
|
func msgDetectCode(msg string) int {
|
|
switch msg {
|
|
case "exit":
|
|
return 1
|
|
case "outside":
|
|
return 2
|
|
case "enter":
|
|
return 3
|
|
case "inside":
|
|
return 4
|
|
default:
|
|
return 0
|
|
}
|
|
}
|
|
|
|
// 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:]
|
|
}
|
|
|
|
type liveAOFSwitches struct {
|
|
pos int64
|
|
}
|
|
|
|
func (s liveAOFSwitches) Error() string {
|
|
return goingLive
|
|
}
|
|
|
|
func (server *Server) cmdAOFMD5(msg *Message) (res resp.Value, err error) {
|
|
start := time.Now()
|
|
vs := msg.Args[1:]
|
|
var ok bool
|
|
var spos, ssize string
|
|
|
|
if vs, spos, ok = tokenval(vs); !ok || spos == "" {
|
|
return NOMessage, errInvalidNumberOfArguments
|
|
}
|
|
if vs, ssize, ok = tokenval(vs); !ok || ssize == "" {
|
|
return NOMessage, errInvalidNumberOfArguments
|
|
}
|
|
if len(vs) != 0 {
|
|
return NOMessage, errInvalidNumberOfArguments
|
|
}
|
|
pos, err := strconv.ParseInt(spos, 10, 64)
|
|
if err != nil || pos < 0 {
|
|
return NOMessage, errInvalidArgument(spos)
|
|
}
|
|
size, err := strconv.ParseInt(ssize, 10, 64)
|
|
if err != nil || size < 0 {
|
|
return NOMessage, errInvalidArgument(ssize)
|
|
}
|
|
sum, err := server.checksum(pos, size)
|
|
if err != nil {
|
|
return NOMessage, err
|
|
}
|
|
switch msg.OutputType {
|
|
case JSON:
|
|
res = resp.StringValue(
|
|
fmt.Sprintf(`{"ok":true,"md5":"%s","elapsed":"%s"}`, sum, time.Now().Sub(start)))
|
|
case RESP:
|
|
res = resp.SimpleStringValue(sum)
|
|
}
|
|
return res, nil
|
|
}
|
|
|
|
func (server *Server) cmdAOF(msg *Message) (res resp.Value, err error) {
|
|
if server.aof == nil {
|
|
return NOMessage, errors.New("aof disabled")
|
|
}
|
|
vs := msg.Args[1:]
|
|
|
|
var ok bool
|
|
var spos string
|
|
if vs, spos, ok = tokenval(vs); !ok || spos == "" {
|
|
return NOMessage, errInvalidNumberOfArguments
|
|
}
|
|
if len(vs) != 0 {
|
|
return NOMessage, errInvalidNumberOfArguments
|
|
}
|
|
pos, err := strconv.ParseInt(spos, 10, 64)
|
|
if err != nil || pos < 0 {
|
|
return NOMessage, errInvalidArgument(spos)
|
|
}
|
|
f, err := os.Open(server.aof.Name())
|
|
if err != nil {
|
|
return NOMessage, err
|
|
}
|
|
defer f.Close()
|
|
n, err := f.Seek(0, 2)
|
|
if err != nil {
|
|
return NOMessage, err
|
|
}
|
|
if n < pos {
|
|
return NOMessage, errors.New("pos is too big, must be less that the aof_size of leader")
|
|
}
|
|
var s liveAOFSwitches
|
|
s.pos = pos
|
|
return NOMessage, s
|
|
}
|
|
|
|
func (server *Server) liveAOF(pos int64, conn net.Conn, rd *PipelineReader, msg *Message) error {
|
|
server.mu.Lock()
|
|
server.aofconnM[conn] = true
|
|
server.mu.Unlock()
|
|
defer func() {
|
|
server.mu.Lock()
|
|
delete(server.aofconnM, conn)
|
|
server.mu.Unlock()
|
|
conn.Close()
|
|
}()
|
|
|
|
if _, err := conn.Write([]byte("+OK\r\n")); err != nil {
|
|
return err
|
|
}
|
|
|
|
server.mu.RLock()
|
|
f, err := os.Open(server.aof.Name())
|
|
server.mu.RUnlock()
|
|
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 {
|
|
vs, err := rd.ReadMessages()
|
|
if err != nil {
|
|
if err != io.EOF {
|
|
log.Error(err)
|
|
}
|
|
return
|
|
}
|
|
for _, v := range vs {
|
|
switch v.Command() {
|
|
default:
|
|
log.Error("received a live command that was not QUIT")
|
|
return
|
|
case "quit", "":
|
|
return
|
|
}
|
|
}
|
|
}
|
|
}()
|
|
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
|
|
}
|
|
|
|
b := make([]byte, 4096)
|
|
// The reader needs to be OK with the eof not
|
|
for {
|
|
n, err := f.Read(b)
|
|
if err != io.EOF && n > 0 {
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if _, err := conn.Write(b[:n]); err != nil {
|
|
return err
|
|
}
|
|
continue
|
|
}
|
|
server.fcond.L.Lock()
|
|
server.fcond.Wait()
|
|
server.fcond.L.Unlock()
|
|
}
|
|
}()
|
|
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()
|
|
}
|
|
}
|