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0.3.0: vendor latest libuv

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This commit is contained in:
underscorediscovery
2020-02-11 20:19:15 -08:00
parent 1ffddc1457
commit 36efc63428
197 changed files with 13979 additions and 41093 deletions
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deps/libuv/src/unix/tty.c
Vendored
+77 -32
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@@ -48,6 +48,42 @@ static int uv__tty_is_slave(const int fd) {
char dummy[256];
result = ioctl(fd, TIOCPTYGNAME, &dummy) != 0;
#elif defined(__NetBSD__)
/*
* NetBSD as an extension returns with ptsname(3) and ptsname_r(3) the slave
* device name for both descriptors, the master one and slave one.
*
* Implement function to compare major device number with pts devices.
*
* The major numbers are machine-dependent, on NetBSD/amd64 they are
* respectively:
* - master tty: ptc - major 6
* - slave tty: pts - major 5
*/
struct stat sb;
/* Lookup device's major for the pts driver and cache it. */
static devmajor_t pts = NODEVMAJOR;
if (pts == NODEVMAJOR) {
pts = getdevmajor("pts", S_IFCHR);
if (pts == NODEVMAJOR)
abort();
}
/* Lookup stat structure behind the file descriptor. */
if (fstat(fd, &sb) != 0)
abort();
/* Assert character device. */
if (!S_ISCHR(sb.st_mode))
abort();
/* Assert valid major. */
if (major(sb.st_rdev) == NODEVMAJOR)
abort();
result = (pts == major(sb.st_rdev));
#else
/* Fallback to ptsname
*/
@@ -56,13 +92,15 @@ static int uv__tty_is_slave(const int fd) {
return result;
}
int uv_tty_init(uv_loop_t* loop, uv_tty_t* tty, int fd, int readable) {
int uv_tty_init(uv_loop_t* loop, uv_tty_t* tty, int fd, int unused) {
uv_handle_type type;
int flags;
int newfd;
int r;
int saved_flags;
int mode;
char path[256];
(void)unused; /* deprecated parameter is no longer needed */
/* File descriptors that refer to files cannot be monitored with epoll.
* That restriction also applies to character devices like /dev/random
@@ -70,11 +108,20 @@ int uv_tty_init(uv_loop_t* loop, uv_tty_t* tty, int fd, int readable) {
*/
type = uv_guess_handle(fd);
if (type == UV_FILE || type == UV_UNKNOWN_HANDLE)
return -EINVAL;
return UV_EINVAL;
flags = 0;
newfd = -1;
/* Save the fd flags in case we need to restore them due to an error. */
do
saved_flags = fcntl(fd, F_GETFL);
while (saved_flags == -1 && errno == EINTR);
if (saved_flags == -1)
return UV__ERR(errno);
mode = saved_flags & O_ACCMODE;
/* Reopen the file descriptor when it refers to a tty. This lets us put the
* tty in non-blocking mode without affecting other processes that share it
* with us.
@@ -92,21 +139,21 @@ int uv_tty_init(uv_loop_t* loop, uv_tty_t* tty, int fd, int readable) {
* slave device.
*/
if (uv__tty_is_slave(fd) && ttyname_r(fd, path, sizeof(path)) == 0)
r = uv__open_cloexec(path, O_RDWR);
r = uv__open_cloexec(path, mode | O_NOCTTY);
else
r = -1;
if (r < 0) {
/* fallback to using blocking writes */
if (!readable)
flags |= UV_STREAM_BLOCKING;
if (mode != O_RDONLY)
flags |= UV_HANDLE_BLOCKING_WRITES;
goto skip;
}
newfd = r;
r = uv__dup2_cloexec(newfd, fd);
if (r < 0 && r != -EINVAL) {
if (r < 0 && r != UV_EINVAL) {
/* EINVAL means newfd == fd which could conceivably happen if another
* thread called close(fd) between our calls to isatty() and open().
* That's a rather unlikely event but let's handle it anyway.
@@ -118,22 +165,6 @@ int uv_tty_init(uv_loop_t* loop, uv_tty_t* tty, int fd, int readable) {
fd = newfd;
}
#if defined(__APPLE__)
/* Save the fd flags in case we need to restore them due to an error. */
do
saved_flags = fcntl(fd, F_GETFL);
while (saved_flags == -1 && errno == EINTR);
if (saved_flags == -1) {
if (newfd != -1)
uv__close(newfd);
return -errno;
}
#endif
/* Pacify the compiler. */
(void) &saved_flags;
skip:
uv__stream_init(loop, (uv_stream_t*) tty, UV_TTY);
@@ -141,7 +172,7 @@ skip:
* the handle queue, since it was added by uv__handle_init in uv_stream_init.
*/
if (!(flags & UV_STREAM_BLOCKING))
if (!(flags & UV_HANDLE_BLOCKING_WRITES))
uv__nonblock(fd, 1);
#if defined(__APPLE__)
@@ -158,10 +189,10 @@ skip:
}
#endif
if (readable)
flags |= UV_STREAM_READABLE;
else
flags |= UV_STREAM_WRITABLE;
if (mode != O_WRONLY)
flags |= UV_HANDLE_READABLE;
if (mode != O_RDONLY)
flags |= UV_HANDLE_WRITABLE;
uv__stream_open((uv_stream_t*) tty, fd, flags);
tty->mode = UV_TTY_MODE_NORMAL;
@@ -198,7 +229,7 @@ int uv_tty_set_mode(uv_tty_t* tty, uv_tty_mode_t mode) {
fd = uv__stream_fd(tty);
if (tty->mode == UV_TTY_MODE_NORMAL && mode != UV_TTY_MODE_NORMAL) {
if (tcgetattr(fd, &tty->orig_termios))
return -errno;
return UV__ERR(errno);
/* This is used for uv_tty_reset_mode() */
uv_spinlock_lock(&termios_spinlock);
@@ -228,7 +259,7 @@ int uv_tty_set_mode(uv_tty_t* tty, uv_tty_mode_t mode) {
/* Apply changes after draining */
if (tcsetattr(fd, TCSADRAIN, &tmp))
return -errno;
return UV__ERR(errno);
tty->mode = mode;
return 0;
@@ -244,7 +275,7 @@ int uv_tty_get_winsize(uv_tty_t* tty, int* width, int* height) {
while (err == -1 && errno == EINTR);
if (err == -1)
return -errno;
return UV__ERR(errno);
*width = ws.ws_col;
*height = ws.ws_row;
@@ -262,7 +293,14 @@ uv_handle_type uv_guess_handle(uv_file file) {
if (file < 0)
return UV_UNKNOWN_HANDLE;
#if defined(__PASE__)
/* On IBMi PASE isatty() always returns true for stdin, stdout and stderr.
* Use ioctl() instead to identify whether it's actually a TTY.
*/
if (!ioctl(file, TXISATTY + 0x81, NULL) || errno != ENOTTY)
#else
if (isatty(file))
#endif
return UV_TTY;
if (fstat(file, &s))
@@ -322,15 +360,22 @@ int uv_tty_reset_mode(void) {
saved_errno = errno;
if (!uv_spinlock_trylock(&termios_spinlock))
return -EBUSY; /* In uv_tty_set_mode(). */
return UV_EBUSY; /* In uv_tty_set_mode(). */
err = 0;
if (orig_termios_fd != -1)
if (tcsetattr(orig_termios_fd, TCSANOW, &orig_termios))
err = -errno;
err = UV__ERR(errno);
uv_spinlock_unlock(&termios_spinlock);
errno = saved_errno;
return err;
}
void uv_tty_set_vterm_state(uv_tty_vtermstate_t state) {
}
int uv_tty_get_vterm_state(uv_tty_vtermstate_t* state) {
return UV_ENOTSUP;
}