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fix(editor): prevent UI redraw conflicts during editor suspend/resume

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Guard against re-entrant editor launches, abort editor on Ctrl-Z,
and centralize suspend-aware redraws through prof_doupdate() to prevent
terminal corruption when SIGTSTP is received while editor is active.

Removes SIGUSR1 editor escape in favor of standard pkill <editor> recovery.
This commit is contained in:
Jabber Developer
2026-06-01 12:21:34 +00:00
parent 72f4f186da
commit c1093db090
11 changed files with 187 additions and 21 deletions
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14
src/ui/inputwin.c
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@@ -182,7 +182,11 @@ inp_readline(void)
{
// UI is suspended
if (is_suspended || isendwin()) {
// Mirror the normal-path unlock so workers aren't starved
// for the whole editor session.
pthread_mutex_unlock(&lock);
g_usleep(100000); // 100ms
pthread_mutex_lock(&lock);
return NULL;
}
@@ -311,11 +315,13 @@ inp_get_line(void)
werase(inp_win);
wmove(inp_win, 0, 0);
_inp_win_update_virtual();
doupdate();
prof_doupdate();
char* line = NULL;
while (!line) {
line = inp_readline();
ui_update();
while (g_main_context_iteration(NULL, FALSE)) // non-blocking; bounded by ready sources
;
}
status_bar_clear_prompt();
return line;
@@ -338,12 +344,14 @@ inp_get_password(void)
werase(inp_win);
wmove(inp_win, 0, 0);
_inp_win_update_virtual();
doupdate();
prof_doupdate();
char* password = NULL;
get_password = TRUE;
while (!password) {
password = inp_readline();
ui_update();
while (g_main_context_iteration(NULL, FALSE)) // non-blocking; bounded by ready sources
;
}
get_password = FALSE;
status_bar_clear_prompt();
@@ -459,7 +467,7 @@ _inp_write(char* line, int offset)
_inp_win_handle_scroll();
_inp_win_update_virtual();
doupdate();
prof_doupdate();
}
static int