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Cygwin: console: Fix interference issue regarding master thread. 

- This patch fixes the issue that ReadConsoleInputW() call in the
  master thread interferes with the input process of non-cygwin apps.
This commit is contained in:
Takashi Yano 2021-11-18 12:28:53 +09:00
parent 8c1bbf2f2c
commit c8b779aff4
2 changed files with 12 additions and 0 deletions
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1
winsup/cygwin/fhandler.h
View File

@ -2042,6 +2042,7 @@ class dev_console
char cons_rabuf[40]; // cannot get longer than char buf[40] in char_command
char *cons_rapoi;
bool cursor_key_app_mode;
bool disable_master_thread;
inline UINT get_console_cp ();
DWORD con_to_str (char *d, int dlen, WCHAR w);

11
winsup/cygwin/fhandler_console.cc
View File

@ -208,6 +208,12 @@ fhandler_console::cons_master_thread (handle_set_t *p, tty *ttyp)
DWORD total_read, n, i;
INPUT_RECORD input_rec[INREC_SIZE];
if (con.disable_master_thread)
{
cygwait (40);
continue;
}
WaitForSingleObject (p->input_mutex, INFINITE);
total_read = 0;
switch (cygwait (p->input_handle, (DWORD) 0))
@ -427,6 +433,7 @@ fhandler_console::setup ()
con.cons_rapoi = NULL;
shared_console_info->tty_min_state.is_console = true;
con.cursor_key_app_mode = false;
con.disable_master_thread = false;
}
}
@ -480,6 +487,8 @@ fhandler_console::set_input_mode (tty::cons_mode m, const termios *t,
flags |= ENABLE_VIRTUAL_TERMINAL_INPUT;
else
flags |= ENABLE_MOUSE_INPUT;
if (shared_console_info)
con.disable_master_thread = false;
break;
case tty::native:
if (t->c_lflag & ECHO)
@ -492,6 +501,8 @@ fhandler_console::set_input_mode (tty::cons_mode m, const termios *t,
flags &= ~ENABLE_ECHO_INPUT;
if (t->c_lflag & ISIG)
flags |= ENABLE_PROCESSED_INPUT;
if (shared_console_info)
con.disable_master_thread = true;
break;
}
SetConsoleMode (p->input_handle, flags);