mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-05-28 00:02:28 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Rewrite Windows console input handling

Browse source 
This change removes our use of ENABLE_VIRTUAL_TERMINAL_INPUT (which
isn't very good) in favor of having read() translate Windows Console
input events to ANSI/XTERM sequences by hand. This makes it possible to
capture important keystrokes (e.g. ctrl-space) that weren't possible
before. Most importantly this change also removes the stdin/sigwinch
worker threads, which never really worked that well. Interactive TTY
sessions will now work reliably when a Cosmo process spawns or forks
another Cosmo process, e.g. unbourne.com launching emacs.com.
This commit is contained in:
Justine Tunney 2023-09-19 11:42:38 -07:00
parent ececec4c94
commit d6c2830850
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
27 changed files with 635 additions and 464 deletions
Download patch file Download diff file Expand all files Collapse all files

12
libc/thread/pthread_cancel.c
View file

@ -111,23 +111,27 @@ static void _pthread_cancel_listen(void) {
static void pthread_cancel_nt(struct PosixThread *pt, intptr_t hThread) {
uint32_t old_suspend_count;
if ((pt->pt_flags & PT_ASYNC) && !(pt->pt_flags & PT_NOCANCEL)) {
if ((old_suspend_count = SuspendThread(hThread)) != -1u) {
if (!(pt->pt_flags & PT_NOCANCEL) &&
(pt->pt_flags & (PT_ASYNC | PT_MASKED))) {
pt->pt_flags |= PT_NOCANCEL;
pt->abort_errno = ECANCELED;
if ((pt->pt_flags & PT_ASYNC) &&
(old_suspend_count = SuspendThread(hThread)) != -1u) {
if (!old_suspend_count) {
struct NtContext cpu;
cpu.ContextFlags = kNtContextControl | kNtContextInteger;
if (GetThreadContext(hThread, &cpu)) {
pt->pt_flags |= PT_NOCANCEL;
cpu.Rip = (uintptr_t)pthread_exit;
cpu.Rdi = (uintptr_t)PTHREAD_CANCELED;
cpu.Rsp &= -16;
*(uintptr_t *)(cpu.Rsp -= sizeof(uintptr_t)) = cpu.Rip;
pt->abort_errno = ECANCELED;
unassert(SetThreadContext(hThread, &cpu));
__sig_cancel(pt, 0);
}
}
ResumeThread(hThread);
}
__sig_cancel(pt);
}
}