1 files changed, 170 insertions, 0 deletions
diff --git a/vendor/github.com/rjeczalik/notify/watcher_fen.go b/vendor/github.com/rjeczalik/notify/watcher_fen.go
new file mode 100644
index 000000000..60e9a36da
--- /dev/null
+++ b/vendor/github.com/rjeczalik/notify/watcher_fen.go
@@ -0,0 +1,170 @@
+// Copyright (c) 2014-2015 The Notify Authors. All rights reserved.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+// +build solaris
+
+package notify
+
+import (
+	"fmt"
+	"os"
+	"syscall"
+)
+
+// newTrigger returns implementation of trigger.
+func newTrigger(pthLkp map[string]*watched) trigger {
+	return &fen{
+		pthLkp: pthLkp,
+		cf:     newCfen(),
+	}
+}
+
+// fen is a structure implementing trigger for FEN.
+type fen struct {
+	// p is a FEN port identifier
+	p int
+	// pthLkp is a structure mapping monitored files/dir with data about them,
+	// shared with parent trg structure
+	pthLkp map[string]*watched
+	// cf wraps C operations for FEN
+	cf cfen
+}
+
+// watched is a data structure representing watched file/directory.
+type watched struct {
+	// p is a path to watched file/directory
+	p string
+	// fi provides information about watched file/dir
+	fi os.FileInfo
+	// eDir represents events watched directly
+	eDir Event
+	// eNonDir represents events watched indirectly
+	eNonDir Event
+}
+
+// Stop implements trigger.
+func (f *fen) Stop() error {
+	return f.cf.port_alert(f.p)
+}
+
+// Close implements trigger.
+func (f *fen) Close() (err error) {
+	return syscall.Close(f.p)
+}
+
+// NewWatched implements trigger.
+func (*fen) NewWatched(p string, fi os.FileInfo) (*watched, error) {
+	return &watched{p: p, fi: fi}, nil
+}
+
+// Record implements trigger.
+func (f *fen) Record(w *watched) {
+	f.pthLkp[w.p] = w
+}
+
+// Del implements trigger.
+func (f *fen) Del(w *watched) {
+	delete(f.pthLkp, w.p)
+}
+
+func inter2pe(n interface{}) PortEvent {
+	pe, ok := n.(PortEvent)
+	if !ok {
+		panic(fmt.Sprintf("fen: type should be PortEvent, %T instead", n))
+	}
+	return pe
+}
+
+// Watched implements trigger.
+func (f *fen) Watched(n interface{}) (*watched, int64, error) {
+	pe := inter2pe(n)
+	fo, ok := pe.PortevObject.(*FileObj)
+	if !ok || fo == nil {
+		panic(fmt.Sprintf("fen: type should be *FileObj, %T instead", fo))
+	}
+	w, ok := f.pthLkp[fo.Name]
+	if !ok {
+		return nil, 0, errNotWatched
+	}
+	return w, int64(pe.PortevEvents), nil
+}
+
+// init initializes FEN.
+func (f *fen) Init() (err error) {
+	f.p, err = f.cf.port_create()
+	return
+}
+
+func fi2fo(fi os.FileInfo, p string) FileObj {
+	st, ok := fi.Sys().(*syscall.Stat_t)
+	if !ok {
+		panic(fmt.Sprintf("fen: type should be *syscall.Stat_t, %T instead", st))
+	}
+	return FileObj{Name: p, Atim: st.Atim, Mtim: st.Mtim, Ctim: st.Ctim}
+}
+
+// Unwatch implements trigger.
+func (f *fen) Unwatch(w *watched) error {
+	return f.cf.port_dissociate(f.p, FileObj{Name: w.p})
+}
+
+// Watch implements trigger.
+func (f *fen) Watch(fi os.FileInfo, w *watched, e int64) error {
+	return f.cf.port_associate(f.p, fi2fo(fi, w.p), int(e))
+}
+
+// Wait implements trigger.
+func (f *fen) Wait() (interface{}, error) {
+	var (
+		pe  PortEvent
+		err error
+	)
+	err = f.cf.port_get(f.p, &pe)
+	return pe, err
+}
+
+// IsStop implements trigger.
+func (f *fen) IsStop(n interface{}, err error) bool {
+	return err == syscall.EBADF || inter2pe(n).PortevSource == srcAlert
+}
+
+func init() {
+	encode = func(e Event) (o int64) {
+		// Create event is not supported by FEN. Instead FileModified event will
+		// be registered. If this event will be reported on dir which is to be
+		// monitored for Create, dir will be rescanned and Create events will
+		// be generated and returned for new files. In case of files,
+		// if not requested FileModified event is reported, it will be ignored.
+		if e&Create != 0 {
+			o = (o &^ int64(Create)) | int64(FileModified)
+		}
+		if e&Write != 0 {
+			o = (o &^ int64(Write)) | int64(FileModified)
+		}
+		// Following events are 'exception events' and as such cannot be requested
+		// explicitly for monitoring or filtered out. If the will be reported
+		// by FEN and not subscribed with by user, they will be filtered out by
+		// watcher's logic.
+		o &= int64(^Rename & ^Remove &^ FileDelete &^ FileRenameTo &^
+			FileRenameFrom &^ Unmounted &^ MountedOver)
+		return
+	}
+	nat2not = map[Event]Event{
+		FileModified:   Write,
+		FileRenameFrom: Rename,
+		FileDelete:     Remove,
+		FileAccess:     Event(0),
+		FileAttrib:     Event(0),
+		FileRenameTo:   Event(0),
+		FileTrunc:      Event(0),
+		FileNoFollow:   Event(0),
+		Unmounted:      Event(0),
+		MountedOver:    Event(0),
+	}
+	not2nat = map[Event]Event{
+		Write:  FileModified,
+		Rename: FileRenameFrom,
+		Remove: FileDelete,
+	}
+}