Reimplement flushes

fix #33
fix #39

app/client.go

@@ -25,7 +25,8 @@ type Request struct {
 type Response struct {
 	Err            error
 	ClientStatus   ClientStatus
-	Number       int
+	FlushedMatches map[string]map[string]int
+	FlushedActions map[string]map[string]map[string]int
 }
 
 func SendAndRetrieve(data Request) Response {
@@ -111,7 +112,14 @@ func ClientFlush(pattern, streamfilter string) {
 		log.Fatalln("Received error from daemon:", response.Err)
 		os.Exit(1)
 	}
-	fmt.Printf("flushed pattern %v times\n", response.Number)
+	text, err := yaml.Marshal(struct {
+		Matches map[string]map[string]int
+		Actions map[string]map[string]map[string]int
+	}{response.FlushedMatches, response.FlushedActions})
+	if err != nil {
+		log.Fatalln("Failed to convert daemon binary response to text format:", err)
+	}
+	fmt.Println(string(text))
 	os.Exit(0)
 }
 

app/daemon.go

@@ -4,7 +4,6 @@ import (
 	"bufio"
 	"syscall"
 
-	// "fmt"
 	"log"
 	"os"
 	"os/exec"
@@ -73,6 +72,8 @@ func (f *Filter) sendActions(match string, at time.Time) {
 }
 
 func (a *Action) exec(match string) {
+	wgActions.Add(1)
+	go func() {
 		defer wgActions.Done()
 
 		computedCommand := make([]string, 0, len(a.Cmd))
@@ -87,50 +88,63 @@ func (a *Action) exec(match string) {
 		if ret := cmd.Run(); ret != nil {
 			log.Printf("ERROR %s.%s.%s: run %s, code %s\n", a.filter.stream.name, a.filter.name, a.name, computedCommand, ret)
 		}
+	}()
 }
 
 func ActionsManager() {
 	pendingActionsC := make(chan PAT)
-	var (
-		pat    PAT
-		action *Action
-		match  string
-		then   time.Time
-		now    time.Time
-	)
 	for {
 		select {
-		case pat = <-actionsC:
-			match = pat.p
-			action = pat.a
-			then = pat.t
-			now = time.Now()
-			// check
+		case pat := <-actionsC:
+			pa := PA{pat.p, pat.a}
+			pattern, action, then := pat.p, pat.a, pat.t
+			now := time.Now()
+			// check if must be executed now
 			if then.Compare(now) <= 0 {
-				wgActions.Add(1)
-				go action.exec(match)
+				action.exec(pattern)
 			} else {
 				actionsLock.Lock()
-				actions[PAT{match, action, then}] = struct{}{}
+				if actions[pa] == nil {
+					actions[pa] = make(map[time.Time]struct{})
+				}
+				actions[PA{pattern, action}][then] = struct{}{}
 				actionsLock.Unlock()
-				go func(pat PAT, now time.Time) {
-					time.Sleep(pat.t.Sub(now))
-					pendingActionsC <- pat
+				go func(insidePat PAT, insideNow time.Time) {
+					time.Sleep(insidePat.t.Sub(insideNow))
+					pendingActionsC <- insidePat
 				}(pat, now)
 			}
-		case pat = <-pendingActionsC:
-			match, action, then = pat.p, pat.a, pat.t
+		case pat := <-pendingActionsC:
+			pa := PA{pat.p, pat.a}
+			pattern, action, then := pat.p, pat.a, pat.t
 			actionsLock.Lock()
-			delete(actions, PAT{match, action, then})
+			if actions[pa] != nil {
+				if _, ok := actions[pa][then]; ok {
+					delete(actions[pa], then)
+					action.exec(pattern)
+				}
+			}
 			actionsLock.Unlock()
-			wgActions.Add(1)
-			go action.exec(match)
+			action.exec(pattern)
+		case fo := <-flushToActionsC:
+			ret := make(map[*Action]int)
+			actionsLock.Lock()
+			for pa := range actions {
+				if pa.p == fo.p {
+					for range actions[pa] {
+						pa.a.exec(pa.p)
+					}
+					ret[pa.a] = len(actions[pa])
+					delete(actions, pa)
+				}
+			}
+			actionsLock.Unlock()
+			fo.ret <- ret
 		case _, _ = <-stopActions:
 			actionsLock.Lock()
 			for pat := range actions {
 				if pat.a.OnExit {
-					wgActions.Add(1)
-					go action.exec(match)
+					pat.a.exec(pat.p)
 				}
 			}
 			actionsLock.Unlock()
@@ -141,44 +155,60 @@ func ActionsManager() {
 }
 
 func MatchesManager() {
-	var pf PF
+	var fo FlushMatchOrder
 	var pft PFT
 	end := false
 
 	for !end {
 		select {
-		case pf = <-flushToMatchesC:
-			delete(matches, pf)
-		case pft, ok := <-startupMatchesC:
+		case fo = <-flushToMatchesC:
+			matchesManagerHandleFlush(fo)
+		case fo, ok := <-startupMatchesC:
 			if !ok {
 				end = true
 			} else {
-				_ = matchesManagerHandleMatch(pft)
+				_ = matchesManagerHandleMatch(fo)
 			}
 		}
 	}
 
 	for {
 		select {
-		case pf = <-flushToMatchesC:
-			matchesLock.Lock()
-			delete(matches, pf)
-			matchesLock.Unlock()
+		case fo = <-flushToMatchesC:
+			matchesManagerHandleFlush(fo)
 		case pft = <-matchesC:
 
 			entry := LogEntry{pft.t, pft.p, pft.f.stream.name, pft.f.name, false}
 
-			matchesLock.Lock()
 			entry.Exec = matchesManagerHandleMatch(pft)
-			matchesLock.Unlock()
 
 			logsC <- entry
 		}
 	}
 }
 
+func matchesManagerHandleFlush(fo FlushMatchOrder) {
+	ret := make(map[*Filter]int)
+	matchesLock.Lock()
+	for pf := range matches {
+		if fo.p == pf.p {
+			if fo.ret != nil {
+				ret[pf.f] = len(matches[pf])
+			}
+			delete(matches, pf)
+		}
+	}
+	matchesLock.Unlock()
+	if fo.ret != nil {
+		fo.ret <- ret
+	}
+}
+
 func matchesManagerHandleMatch(pft PFT) bool {
-	filter, match, then := pft.f, pft.p, pft.t
+	matchesLock.Lock()
+	defer matchesLock.Unlock()
+
+	filter, pattern, then := pft.f, pft.p, pft.t
 	pf := PF{pft.p, pft.f}
 
 	if filter.Retry > 1 {
@@ -190,7 +220,7 @@ func matchesManagerHandleMatch(pft PFT) bool {
 		matches[pf][then] = struct{}{}
 		// remove match when expired
 		go func(pf PF, then time.Time) {
-			time.Sleep(filter.retryDuration)
+			time.Sleep(then.Sub(time.Now()) + filter.retryDuration)
 			matchesLock.Lock()
 			if matches[pf] != nil {
 				// FIXME replace this and all similar occurences
@@ -203,7 +233,7 @@ func matchesManagerHandleMatch(pft PFT) bool {
 
 	if filter.Retry <= 1 || len(matches[pf]) >= filter.Retry {
 		delete(matches, pf)
-		filter.sendActions(match, then)
+		filter.sendActions(pattern, then)
 		return true
 	}
 	return false
@@ -244,7 +274,7 @@ var wgActions sync.WaitGroup
 var wgStreams sync.WaitGroup
 
 /*
-<streamcmds>
+<StreamCmds>
  ↓
 StreamManager          onstartup:matches
  ↓                     ↓               ↑
@@ -254,7 +284,7 @@ StreamManager          onstartup:matches
                  ↑              ↑                ↑
 SocketManager →flushes→→→→→→→→→→·→→→→→→→→→→→→→→→→·
  ↑
-<clients>
+<Clients>
 */
 
 // DatabaseManager → MatchesManager
@@ -270,10 +300,10 @@ var logsC chan LogEntry
 var actionsC chan PAT
 
 // SocketManager, DatabaseManager → MatchesManager
-var flushToMatchesC chan PF
+var flushToMatchesC chan FlushMatchOrder
 
 // SocketManager → ActionsManager
-var flushToActionsC chan PF
+var flushToActionsC chan FlushActionOrder
 
 // SocketManager → DatabaseManager
 var flushToDatabaseC chan LogEntry
@@ -285,8 +315,8 @@ func Daemon(confFilename string) {
 	matchesC = make(chan PFT)
 	logsC = make(chan LogEntry)
 	actionsC = make(chan PAT)
-	flushToMatchesC = make(chan PF)
-	flushToActionsC = make(chan PF)
+	flushToMatchesC = make(chan FlushMatchOrder)
+	flushToActionsC = make(chan FlushActionOrder)
 	flushToDatabaseC = make(chan LogEntry)
 	stopActions = make(chan bool)
 	stopStreams = make(chan bool)
@@ -310,7 +340,7 @@ func Daemon(confFilename string) {
 		go StreamManager(stream, endSignals)
 	}
 
-	go SocketManager()
+	go SocketManager(conf.Streams)
 
 	for {
 		select {

app/persist.go

@@ -178,16 +178,13 @@ func rotateDB(c *Conf, logDec *gob.Decoder, flushDec *gob.Decoder, logEnc *gob.E
 			continue
 		}
 
-		// check if it hasn't been flushed, only for Exec:true for now
-		if entry.Exec {
+		// check if it hasn't been flushed
 		lastGlobalFlush := flushes[PSF{entry.Pattern, "", ""}].Unix()
 		lastLocalFlush := flushes[PSF{entry.Pattern, entry.Stream, entry.Filter}].Unix()
 		entryTime := entry.T.Unix()
-
 		if lastLocalFlush > entryTime || lastGlobalFlush > entryTime {
 			continue
 		}
-		}
 
 		// store matches
 		if !entry.Exec && entry.T.Add(filter.retryDuration).Unix() > now.Unix() {
@@ -201,7 +198,7 @@ func rotateDB(c *Conf, logDec *gob.Decoder, flushDec *gob.Decoder, logEnc *gob.E
 		// replay executions
 		if entry.Exec && entry.T.Add(*filter.longuestActionDuration).Unix() > now.Unix() {
 			if startup {
-				flushToMatchesC <- PF{entry.Pattern, filter}
+				flushToMatchesC <- FlushMatchOrder{entry.Pattern, nil}
 				filter.sendActions(entry.Pattern, entry.T)
 			}
 

app/pipe.go

@@ -29,8 +29,8 @@ func genClientStatus() ClientStatus {
 	actionsLock.Lock()
 
 	// Painful data manipulation
-	for pat := range actions {
-		pattern, action, then := pat.p, pat.a, pat.t
+	for pa := range actions {
+		pattern, action := pa.p, pa.a
 		if cs[action.filter.stream.name] == nil {
 			cs[action.filter.stream.name] = make(map[string]MapPatternStatus)
 		}
@@ -44,12 +44,39 @@ func genClientStatus() ClientStatus {
 		if ps.Actions == nil {
 			ps.Actions = make(map[string][]string)
 		}
+		for then := range actions[pa] {
 			ps.Actions[action.name] = append(ps.Actions[action.name], then.Format(time.DateTime))
 		}
+	}
 	actionsLock.Unlock()
 	return cs
 }
 
+func genFlushedMatches(og map[*Filter]int) map[string]map[string]int {
+	ret := make(map[string]map[string]int)
+	for filter, nb := range og {
+		if ret[filter.stream.name] == nil {
+			ret[filter.stream.name] = make(map[string]int)
+		}
+		ret[filter.stream.name][filter.name] = nb
+	}
+	return ret
+}
+
+func genFlushedActions(og map[*Action]int) map[string]map[string]map[string]int {
+	ret := make(map[string]map[string]map[string]int)
+	for action, nb := range og {
+		if ret[action.filter.stream.name] == nil {
+			ret[action.filter.stream.name] = make(map[string]map[string]int)
+		}
+		if ret[action.filter.stream.name][action.filter.name] == nil {
+			ret[action.filter.stream.name][action.filter.name] = make(map[string]int)
+		}
+		ret[action.filter.stream.name][action.filter.name][action.name] = nb
+	}
+	return ret
+}
+
 func createOpenSocket() net.Listener {
 	err := os.MkdirAll(path.Dir(*SocketPath), 0755)
 	if err != nil {
@@ -71,7 +98,7 @@ func createOpenSocket() net.Listener {
 }
 
 // Handle connections
-func SocketManager() {
+func SocketManager(streams map[string]*Stream) {
 	ln := createOpenSocket()
 	defer ln.Close()
 	for {
@@ -95,8 +122,15 @@ func SocketManager() {
 			case Show:
 				response.ClientStatus = genClientStatus()
 			case Flush:
-				// FIXME reimplement flush
-				response.Number = 0
+				le := LogEntry{time.Now(), request.Pattern, "", "", false}
+				matches := FlushMatchOrder{request.Pattern, make(chan map[*Filter]int)}
+				actions := FlushActionOrder{request.Pattern, make(chan map[*Action]int)}
+				flushToMatchesC <- matches
+				flushToActionsC <- actions
+				flushToDatabaseC <- le
+
+				response.FlushedMatches = genFlushedMatches(<-matches.ret)
+				response.FlushedActions = genFlushedActions(<-actions.ret)
 			default:
 				log.Println("ERROR Invalid Message from cli: unrecognised Request type")
 				return

app/types.go

@@ -76,7 +76,7 @@ type WriteDB struct {
 }
 
 type MatchesMap map[PF]map[time.Time]struct{}
-type ActionsMap map[PAT]struct{}
+type ActionsMap map[PA]map[time.Time]struct{}
 
 // Helper structs made to carry information
 type SF struct{ s, f string }
@@ -99,3 +99,12 @@ type PAT struct {
 	a *Action
 	t time.Time
 }
+
+type FlushMatchOrder struct {
+	p   string
+	ret chan map[*Filter]int
+}
+type FlushActionOrder struct {
+	p   string
+	ret chan map[*Action]int
+}