From 60232a24d5501a2558888cbd9e8635edc545b8ef Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@helsinki.at>
Date: Mon, 28 Dec 2015 17:21:57 +0100
Subject: refactoring of session, seperate public from private interface


diff --git a/src/helsinki.at/rhimport/session.go b/src/helsinki.at/rhimport/session.go
index 88648f7..71251f1 100644
--- a/src/helsinki.at/rhimport/session.go
+++ b/src/helsinki.at/rhimport/session.go
@@ -38,13 +38,6 @@ const (
 	SESSION_TIMEOUT
 )
 
-type SessionChan struct {
-	runChan         chan<- time.Duration
-	cancelChan      chan<- bool
-	addProgressChan chan<- sessionAddProgressHandlerRequest
-	addDoneChan     chan<- sessionAddDoneHandlerRequest
-}
-
 type Session struct {
 	ctx             ImportContext
 	state           int
@@ -138,13 +131,6 @@ func (self *Session) run(timeout time.Duration) {
 	return
 }
 
-func (self *SessionChan) Run(timeout time.Duration) {
-	select {
-	case self.runChan <- timeout:
-	default: // command is already pending or session is about to be closed/removed
-	}
-}
-
 func (self *Session) cancel() {
 	rhdl.Println("Session: canceling running import")
 	select {
@@ -154,13 +140,6 @@ func (self *Session) cancel() {
 	self.state = SESSION_CANCELED
 }
 
-func (self *SessionChan) Cancel() {
-	select {
-	case self.cancelChan <- true:
-	default: // cancel is already pending or session is about to be closed/removed
-	}
-}
-
 func (self *Session) addProgressHandler(userdata interface{}, cb ImportProgressCB) (resp sessionAddProgressHandlerResponse) {
 	if self.state != SESSION_NEW && self.state != SESSION_RUNNING {
 		resp.err = fmt.Errorf("session is already done/canceled")
@@ -169,22 +148,6 @@ func (self *Session) addProgressHandler(userdata interface{}, cb ImportProgressC
 	return
 }
 
-func (self *SessionChan) AddProgressHandler(userdata interface{}, cb ImportProgressCB) error {
-	res_ch := make(chan sessionAddProgressHandlerResponse)
-	req := sessionAddProgressHandlerRequest{}
-	req.userdata = userdata
-	req.callback = cb
-	req.response = res_ch
-	select {
-	case self.addProgressChan <- req:
-	default:
-		return fmt.Errorf("session is about to be closed/removed")
-	}
-
-	res := <-res_ch
-	return res.err
-}
-
 func (self *Session) addDoneHandler(userdata interface{}, cb func(ImportResult, interface{}) bool) (resp sessionAddDoneHandlerResponse) {
 	if self.state != SESSION_NEW && self.state != SESSION_RUNNING {
 		resp.err = fmt.Errorf("session is already done/canceled")
@@ -203,22 +166,6 @@ func (self *Session) callProgressHandler(p *ProgressData) {
 	}
 }
 
-func (self *SessionChan) AddDoneHandler(userdata interface{}, cb func(ImportResult, interface{}) bool) error {
-	res_ch := make(chan sessionAddDoneHandlerResponse)
-	req := sessionAddDoneHandlerRequest{}
-	req.userdata = userdata
-	req.callback = cb
-	req.response = res_ch
-	select {
-	case self.addDoneChan <- req:
-	default:
-		return fmt.Errorf("session is about to be closed/removed")
-	}
-
-	res := <-res_ch
-	return res.err
-}
-
 func (self *Session) callDoneHandler(r *ImportResult) {
 	for _, cb := range self.doneCBs {
 		if cb.cb != nil {
@@ -275,6 +222,62 @@ func (self *Session) dispatchRequests() {
 	}
 }
 
+// *********************************************************
+// Public Interface
+
+type SessionChan struct {
+	runChan         chan<- time.Duration
+	cancelChan      chan<- bool
+	addProgressChan chan<- sessionAddProgressHandlerRequest
+	addDoneChan     chan<- sessionAddDoneHandlerRequest
+}
+
+func (self *SessionChan) Run(timeout time.Duration) {
+	select {
+	case self.runChan <- timeout:
+	default: // command is already pending or session is about to be closed/removed
+	}
+}
+
+func (self *SessionChan) Cancel() {
+	select {
+	case self.cancelChan <- true:
+	default: // cancel is already pending or session is about to be closed/removed
+	}
+}
+
+func (self *SessionChan) AddProgressHandler(userdata interface{}, cb ImportProgressCB) error {
+	res_ch := make(chan sessionAddProgressHandlerResponse)
+	req := sessionAddProgressHandlerRequest{}
+	req.userdata = userdata
+	req.callback = cb
+	req.response = res_ch
+	select {
+	case self.addProgressChan <- req:
+	default:
+		return fmt.Errorf("session is about to be closed/removed")
+	}
+
+	res := <-res_ch
+	return res.err
+}
+
+func (self *SessionChan) AddDoneHandler(userdata interface{}, cb func(ImportResult, interface{}) bool) error {
+	res_ch := make(chan sessionAddDoneHandlerResponse)
+	req := sessionAddDoneHandlerRequest{}
+	req.userdata = userdata
+	req.callback = cb
+	req.response = res_ch
+	select {
+	case self.addDoneChan <- req:
+	default:
+		return fmt.Errorf("session is about to be closed/removed")
+	}
+
+	res := <-res_ch
+	return res.err
+}
+
 func (self *Session) getInterface() *SessionChan {
 	ch := &SessionChan{}
 	ch.runChan = self.runChan
-- 
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