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Make improvements

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- Improved async signal safety of read() particularly for longjmp()
- Started adding cancel cleanup handlers for locks / etc on Windows
- Make /dev/tty work better particularly for uses like `foo | less`
- Eagerly read console input into a linked list, so poll can signal
- Fix some libc definitional bugs, which configure scripts detected
This commit is contained in:
Justine Tunney 2023-09-21 07:30:39 -07:00
parent d6c2830850
commit 0c5dd7b342
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GPG key ID: BE714B4575D6E328
85 changed files with 1062 additions and 671 deletions
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15
libc/calls/write-nt.c
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@ -86,10 +86,6 @@ static textwindows ssize_t sys_write_nt_impl(int fd, void *data, size_t size,
if (!pwriting) {
offset = 0;
}
if (seekable && !pwriting) {
pthread_mutex_lock(&f->lock);
offset = f->pointer;
}
// To use the tty mouse events feature:
// - write(1, "\e[?1000;1002;1015;1006h") to enable
@ -161,6 +157,11 @@ static textwindows ssize_t sys_write_nt_impl(int fd, void *data, size_t size,
}
}
if (seekable && !pwriting) {
pthread_mutex_lock(&f->lock);
offset = f->pointer;
}
struct NtOverlapped overlap = {.hEvent = CreateEvent(0, 0, 0, 0),
.Pointer = offset};
ok = WriteFile(handle, data, size, 0, &overlap);
@ -212,6 +213,12 @@ static textwindows ssize_t sys_write_nt_impl(int fd, void *data, size_t size,
return sent;
}
errno_t err;
if (_weaken(pthread_testcancel_np) &&
(err = _weaken(pthread_testcancel_np)())) {
return ecanceled();
}
switch (GetLastError()) {
// case kNtErrorInvalidHandle:
// return ebadf(); /* handled by consts.sh */