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Make the loop API a thin wrapper around internal methods

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This commit is contained in:
Kovid Goyal
2022-09-01 12:14:03 +05:30
parent 7325921070
commit 67115530b4
3 changed files with 56 additions and 35 deletions
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27
tools/tui/loop/run.go
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@@ -19,6 +19,21 @@ import (
var SIGNULL unix.Signal
func new_loop() *Loop {
l := Loop{controlling_term: nil, timers_temp: make([]*timer, 4)}
l.terminal_options.alternate_screen = true
l.terminal_options.restore_colors = true
l.terminal_options.kitty_keyboard_mode = true
l.escape_code_parser.HandleCSI = l.handle_csi
l.escape_code_parser.HandleOSC = l.handle_osc
l.escape_code_parser.HandleDCS = l.handle_dcs
l.escape_code_parser.HandleAPC = l.handle_apc
l.escape_code_parser.HandleSOS = l.handle_sos
l.escape_code_parser.HandlePM = l.handle_pm
l.escape_code_parser.HandleRune = l.handle_rune
return &l
}
func is_temporary_error(err error) bool {
return errors.Is(err, unix.EINTR) || errors.Is(err, unix.EAGAIN) || errors.Is(err, unix.EWOULDBLOCK) || errors.Is(err, io.ErrShortWrite)
}
@@ -60,7 +75,7 @@ func (self *Loop) handle_csi(raw []byte) error {
}
func (self *Loop) handle_key_event(ev *KeyEvent) error {
// self.DebugPrintln(ev)
self.DebugPrintln(ev)
if self.OnKeyEvent != nil {
err := self.OnKeyEvent(ev)
if err != nil {
@@ -163,6 +178,10 @@ func (self *Loop) on_SIGTERM() error {
}
func (self *Loop) on_SIGTSTP() error {
signal.Reset(unix.SIGTSTP)
unix.Kill(os.Getpid(), unix.SIGTSTP)
time.Sleep(20 * time.Millisecond)
signal.Notify(self.signal_channel, unix.SIGTSTP)
return nil
}
@@ -173,9 +192,9 @@ func (self *Loop) on_SIGHUP() error {
}
func (self *Loop) run() (err error) {
sigchnl := make(chan os.Signal, 256)
self.signal_channel = make(chan os.Signal, 256)
handled_signals := []os.Signal{unix.SIGINT, unix.SIGTERM, unix.SIGTSTP, unix.SIGHUP, unix.SIGWINCH, unix.SIGPIPE}
signal.Notify(sigchnl, handled_signals...)
signal.Notify(self.signal_channel, handled_signals...)
defer signal.Reset(handled_signals...)
controlling_term, err := tty.OpenControllingTerm()
@@ -277,7 +296,7 @@ func (self *Loop) run() (err error) {
return err
}
}
case s := <-sigchnl:
case s := <-self.signal_channel:
err = self.on_signal(s.(unix.Signal))
if err != nil {
return err