blog

commit

8a6662decfb3d1dc3ebbba1acfa4d68a29db5e95

parent

9f567dd468ad71967eeb133efcbeb5118a5066b9

Author

Tobias Bengfort <tobias.bengfort@posteo.de>

Date

2023-07-19 16:30

tweak tui post

Diffstat

1 files changed, 4 insertions, 4 deletions

diff --git a/_content/posts/2023-03-30-tui/index.md b/_content/posts/2023-03-30-tui/index.md

@@ -84,7 +84,7 @@ def exit_tui():
   84    84 	sys.stdout.write('\033[?1049l')
   85    85 	sys.stdout.write('\033[?25h')
   86    86 	sys.stdout.flush()
   87    -1 	termios.tcsetattr(fd, otermios.TCSADRAIN, old_state)
   -1    87 	termios.tcsetattr(fd, termios.TCSADRAIN, old_state)
   88    88 
   89    89 enter_tui()
   90    90 run_mainloop()
@@ -110,7 +110,7 @@ The underlying mechanism for this are the signals `SIGSTOP`, `SIGTSTP`, and
  110   110 `SIGCONT`. `SIGSTOP` and `SIGTSTP` are used to stop a process. The difference
  111   111 between the two is that the our application can intercept and handle (or
  112   112 ignore) `SIGTSTP`, but not `SIGSTOP`. Luckily, the terminal sends `SIGTSTP` on
  113    -1 `ctrl-z`. `SIGCONT` is used to continue a process and is sent by the terminal
   -1   113 `ctrl-z`. `SIGCONT` is used to un-stop a process and is sent by the terminal
  114   114 when you type `fg`.
  115   115 
  116   116 Signals can interrupt our code at any time, e.g. in the middle of writing a
@@ -143,7 +143,7 @@ Some things to note:
  143   143 -	We do not need to register a separate handler for `SIGCONT`. Instead, we just
  144   144 	rely on the fact that `SIGSTOP` will immediately stop the process. On
  145   145 	`SIGCONT`, execution will continue and we can restore the TUI context in the
  146    -1 	next command.
   -1   146 	next line.
  147   147 -	The screen might have changed in the meantime, so it is best to do a fresh
  148   148 	render.
  149   149 
@@ -177,7 +177,7 @@ class TUIMode(AbstractContextManager):
  177   177 		sys.stdout.write('\033[?1049l')
  178   178 		sys.stdout.write('\033[?25h')
  179   179 		sys.stdout.flush()
  180    -1 		termios.tcsetattr(self.fd, otermios.TCSADRAIN, self.old_state)
   -1   180 		termios.tcsetattr(self.fd, termios.TCSADRAIN, self.old_state)
  181   181 
  182   182 
  183   183 def on_stop(ctx):