Fix terminal state and key state data races (#335)

* Update gitignore to ignore .swp

* Fix terminal state data races

go run -race cmd/darktile/main.go

WARNING: DATA RACE
Write at 0x00c000864128 by goroutine 23:
	github.com/liamg/darktile/internal/app/darktile/termutil.(*Terminal).sgrSequenceHandler()
	/home/ernestrc/src/darktile/internal/app/darktile/termutil/csi.go:973 +0x12ca
	github.com/liamg/darktile/internal/app/darktile/termutil.(*Terminal).handleCSI()
	/home/ernestrc/src/darktile/internal/app/darktile/termutil/csi.go:62 +0x7e8
	github.com/liamg/darktile/internal/app/darktile/termutil.(*Terminal).handleANSI()
	/home/ernestrc/src/darktile/internal/app/darktile/termutil/ansi.go:11 +0xc86
	github.com/liamg/darktile/internal/app/darktile/termutil.(*Terminal).process()
	/home/ernestrc/src/darktile/internal/app/darktile/termutil/terminal.go:206 +0x126
	github.com/liamg/darktile/internal/app/darktile/termutil.(*Terminal).Run·dwrap·10()
	/home/ernestrc/src/darktile/internal/app/darktile/termutil/terminal.go:171 +0x39
Previous read at 0x00c000864128 by goroutine 22:
	[failed to restore the stack]
Goroutine 23 (running) created at:
	github.com/liamg/darktile/internal/app/darktile/termutil.(*Terminal).Run()
	/home/ernestrc/src/darktile/internal/app/darktile/termutil/terminal.go:171 +0x517
	github.com/liamg/darktile/internal/app/darktile/gui.(*GUI).Run.func1()
	/home/ernestrc/src/darktile/internal/app/darktile/gui/gui.go:80 +0xa
Goroutine 22 (running) created at:
	github.com/hajimehoshi/ebiten/v2/internal/uidriver/glfw.(*UserInterface).Run()
	/home/ernestrc/src/darktile/vendor/github.com/hajimehoshi/ebiten/v2/internal/uidriver/glfw/run_notsinglethread.go:37 +0x2c4
	github.com/hajimehoshi/ebiten/v2.RunGame()
	/home/ernestrc/src/darktile/vendor/github.com/hajimehoshi/ebiten/v2/run.go:158 +0x1d4
	github.com/liamg/darktile/internal/app/darktile/gui.(*GUI).Run()
	/home/ernestrc/src/darktile/internal/app/darktile/gui/gui.go:99 +0x2de
	github.com/liamg/darktile/internal/app/darktile/cmd.glob..func2()
	/home/ernestrc/src/darktile/internal/app/darktile/cmd/root.go:130 +0x13a9
	github.com/spf13/cobra.(*Command).execute()
	/home/ernestrc/src/darktile/vendor/github.com/spf13/cobra/command.go:852 +0xa7d
	github.com/spf13/cobra.(*Command).ExecuteC()
	/home/ernestrc/src/darktile/vendor/github.com/spf13/cobra/command.go:960 +0x5da
	github.com/spf13/cobra.(*Command).Execute()
	/home/ernestrc/src/darktile/vendor/github.com/spf13/cobra/command.go:897 +0x366
	github.com/liamg/darktile/internal/app/darktile/cmd.Execute()
	/home/ernestrc/src/darktile/internal/app/darktile/cmd/root.go:153 +0x34f
	main.main()
	/home/ernestrc/src/darktile/cmd/darktile/main.go:75 +0x24
==================
Found 26 data race(s)

* Fix KeyPressed data race

go run -race cmd/darktile/main.go

WARNING: DATA RACE
Write at 0x00c00009fbc0 by goroutine 20:
	runtime.mapdelete_fast64()
	/usr/lib/go/src/runtime/map_fast64.go:272 +0x0
	github.com/liamg/darktile/internal/app/darktile/gui.(*keyState).RepeatPressed()
	/home/ernestrc/src/darktile/internal/app/darktile/gui/key_states.go:61 +0x428
	github.com/liamg/darktile/internal/app/darktile/gui.(*GUI).handleInput()
	/home/ernestrc/src/darktile/internal/app/darktile/gui/input.go:109 +0x224
	github.com/liamg/darktile/internal/app/darktile/gui.(*GUI).Update()
	/home/ernestrc/src/darktile/internal/app/darktile/gui/update.go:34 +0x2e
	github.com/hajimehoshi/ebiten/v2.(*imageDumper).update()
	/home/ernestrc/src/darktile/vendor/github.com/hajimehoshi/ebiten/v2/imagedumper_desktop.go:111 +0x85
	github.com/hajimehoshi/ebiten/v2.(*imageDumperGame).Update()
	/home/ernestrc/src/darktile/vendor/github.com/hajimehoshi/ebiten/v2/run.go:115 +0x172
	github.com/hajimehoshi/ebiten/v2.(*uiContext).updateImpl()
	/home/ernestrc/src/darktile/vendor/github.com/hajimehoshi/ebiten/v2/uicontext.go:194 +0x12c
	github.com/hajimehoshi/ebiten/v2.(*uiContext).update()
	/home/ernestrc/src/darktile/vendor/github.com/hajimehoshi/ebiten/v2/uicontext.go:166 +0x88
	github.com/hajimehoshi/ebiten/v2.(*uiContext).Update()
	/home/ernestrc/src/darktile/vendor/github.com/hajimehoshi/ebiten/v2/uicontext.go:147 +0x3b
	github.com/hajimehoshi/ebiten/v2/internal/uidriver/glfw.(*UserInterface).loop()
	/home/ernestrc/src/darktile/vendor/github.com/hajimehoshi/ebiten/v2/internal/uidriver/glfw/ui.go:1036 +0x401
	github.com/hajimehoshi/ebiten/v2/internal/uidriver/glfw.(*UserInterface).Run.func1()
	/home/ernestrc/src/darktile/vendor/github.com/hajimehoshi/ebiten/v2/internal/uidriver/glfw/run_notsinglethread.go:53 +0x1b1
Previous read at 0x00c00009fbc0 by goroutine 19:
	github.com/liamg/darktile/internal/app/darktile/gui.(*keyState).AnythingPressed()
	/home/ernestrc/src/darktile/internal/app/darktile/gui/key_states.go:33 +0xbc
	github.com/liamg/darktile/internal/app/darktile/gui.(*GUI).watchForUpdate()
	/home/ernestrc/src/darktile/internal/app/darktile/gui/gui.go:105 +0x77
	github.com/liamg/darktile/internal/app/darktile/gui.(*GUI).Run·dwrap·2()
	/home/ernestrc/src/darktile/internal/app/darktile/gui/gui.go:97 +0x39
Goroutine 20 (running) created at:
	github.com/hajimehoshi/ebiten/v2/internal/uidriver/glfw.(*UserInterface).Run()
	/home/ernestrc/src/darktile/vendor/github.com/hajimehoshi/ebiten/v2/internal/uidriver/glfw/run_notsinglethread.go:37 +0x2c4
	github.com/hajimehoshi/ebiten/v2.RunGame()
Goroutine 19 (running) created at:
	github.com/liamg/darktile/internal/app/darktile/gui.(*GUI).Run()
	/home/ernestrc/src/darktile/internal/app/darktile/gui/gui.go:97 +0x2ca
	github.com/liamg/darktile/internal/app/darktile/cmd.glob..func2()
	/home/ernestrc/src/darktile/internal/app/darktile/cmd/root.go:130 +0x13a9
	github.com/spf13/cobra.(*Command).execute()
	/home/ernestrc/src/darktile/vendor/github.com/spf13/cobra/command.go:852 +0xa7d
	github.com/spf13/cobra.(*Command).ExecuteC()
	/home/ernestrc/src/darktile/vendor/github.com/spf13/cobra/command.go:960 +0x5da
	github.com/spf13/cobra.(*Command).Execute()
	/home/ernestrc/src/darktile/vendor/github.com/spf13/cobra/command.go:897 +0x366
	github.com/liamg/darktile/internal/app/darktile/cmd.Execute()
	/home/ernestrc/src/darktile/internal/app/darktile/cmd/root.go:153 +0x34f
	main.main()
	/home/ernestrc/src/darktile/cmd/darktile/main.go:75 +0x24
This commit is contained in:
Ernest Romero Climent 2022-05-10 01:18:01 -07:00 committed by GitHub
parent 62453daa17
commit 93392fc149
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
8 changed files with 48 additions and 20 deletions

1
.gitignore vendored
View File

@ -1,3 +1,4 @@
.idea
.vscode
/darktile
*.swp

View File

@ -102,12 +102,12 @@ func (g *GUI) Run() error {
func (g *GUI) watchForUpdate() {
for range g.updateChan {
ebiten.ScheduleFrame()
go func() {
if g.keyState.AnythingPressed() {
if g.keyState.AnythingPressed() {
go func() {
time.Sleep(time.Millisecond * 10)
ebiten.ScheduleFrame()
}
}()
}()
}
}
}

View File

@ -37,6 +37,8 @@ var modifiableKeys = map[ebiten.Key]uint8{
}
func (g *GUI) handleInput() error {
g.terminal.Lock()
defer g.terminal.Unlock()
if err := g.handleMouse(); err != nil {
return err

View File

@ -30,6 +30,8 @@ type press struct {
}
func (k *keyState) AnythingPressed() bool {
k.mu.Lock()
defer k.mu.Unlock()
return len(k.keys) > 0
}

View File

@ -62,6 +62,8 @@ func New(screen *ebiten.Image, terminal *termutil.Terminal, fontManager *font.Ma
}
func (r *Render) Draw() {
r.terminal.Lock()
defer r.terminal.Unlock()
// 1. fill frame with default background colour
r.frame.Fill(r.theme.DefaultBackground())

View File

@ -22,14 +22,17 @@ func (g *GUI) Layout(outsideWidth, outsideHeight int) (int, int) {
func (g *GUI) resize(w, h int) {
if g.fontManager.CharSize().X == 0 || g.fontManager.CharSize().Y == 0 {
if g.fontManager.CharSize().X == 0 || g.fontManager.CharSize().Y == 0 || g.terminal == nil {
return
}
cols := uint16(w / g.fontManager.CharSize().X)
rows := uint16(h / g.fontManager.CharSize().Y)
if g.terminal != nil && g.terminal.IsRunning() {
g.terminal.Lock()
defer g.terminal.Unlock()
if g.terminal.IsRunning() {
_ = g.terminal.SetSize(rows, cols)
}
}

View File

@ -6,6 +6,9 @@ func (t *Terminal) handleANSI(readChan chan MeasuredRune) (renderRequired bool)
t.log("ANSI SEQ %c 0x%X", r.Rune, r.Rune)
t.mu.Lock()
defer t.mu.Unlock()
switch r.Rune {
case '[':
return t.handleCSI(readChan)

View File

@ -7,6 +7,7 @@ import (
"io"
"os"
"os/exec"
"sync"
"github.com/creack/pty"
"golang.org/x/term"
@ -20,6 +21,7 @@ const (
// Terminal communicates with the underlying terminal
type Terminal struct {
mu sync.Mutex
windowManipulator WindowManipulator
pty *os.File
updateChan chan struct{}
@ -196,17 +198,20 @@ func (t *Terminal) requestRender() {
}
}
func (t *Terminal) processSequence(mr MeasuredRune) (render bool) {
if mr.Rune == 0x1b {
return t.handleANSI(t.processChan)
}
return t.processRunes(mr)
}
func (t *Terminal) process() {
for {
select {
case <-t.closeChan:
return
case mr := <-t.processChan:
if mr.Rune == 0x1b { // ANSI escape char, which means this is a sequence
if t.handleANSI(t.processChan) {
t.requestRender()
}
} else if t.processRunes(mr) { // otherwise it's just an individual rune we need to process
if t.processSequence(mr) {
t.requestRender()
}
}
@ -214,6 +219,8 @@ func (t *Terminal) process() {
}
func (t *Terminal) processRunes(runes ...MeasuredRune) (renderRequired bool) {
t.mu.Lock()
defer t.mu.Unlock()
for _, r := range runes {
@ -226,31 +233,31 @@ func (t *Terminal) processRunes(runes ...MeasuredRune) (renderRequired bool) {
//DING DING DING
continue
case 0x8: //backspace
t.GetActiveBuffer().backspace()
t.activeBuffer.backspace()
renderRequired = true
case 0x9: //tab
t.GetActiveBuffer().tab()
t.activeBuffer.tab()
renderRequired = true
case 0xa, 0xc: //newLine/form feed
t.GetActiveBuffer().newLine()
t.activeBuffer.newLine()
renderRequired = true
case 0xb: //vertical tab
t.GetActiveBuffer().verticalTab()
t.activeBuffer.verticalTab()
renderRequired = true
case 0xd: //carriageReturn
t.GetActiveBuffer().carriageReturn()
t.activeBuffer.carriageReturn()
renderRequired = true
case 0xe: //shiftOut
t.GetActiveBuffer().currentCharset = 1
t.activeBuffer.currentCharset = 1
case 0xf: //shiftIn
t.GetActiveBuffer().currentCharset = 0
t.activeBuffer.currentCharset = 0
default:
if r.Rune < 0x20 {
// handle any other control chars here?
continue
}
t.GetActiveBuffer().write(t.translateRune(r))
t.activeBuffer.write(t.translateRune(r))
renderRequired = true
}
}
@ -259,7 +266,7 @@ func (t *Terminal) processRunes(runes ...MeasuredRune) (renderRequired bool) {
}
func (t *Terminal) translateRune(b MeasuredRune) MeasuredRune {
table := t.GetActiveBuffer().charsets[t.GetActiveBuffer().currentCharset]
table := t.activeBuffer.charsets[t.activeBuffer.currentCharset]
if table == nil {
return b
}
@ -306,3 +313,11 @@ func (t *Terminal) useMainBuffer() {
func (t *Terminal) useAltBuffer() {
t.switchBuffer(AltBuffer)
}
func (t *Terminal) Lock() {
t.mu.Lock()
}
func (t *Terminal) Unlock() {
t.mu.Unlock()
}