def openpty() -> Tuple[int, int]:
master, slave = os.openpty(
) # Note that master and slave are in blocking mode
os.set_inheritable(slave, True)
os.set_inheritable(master, False)
fast_data_types.set_iutf8_fd(master, True)
return master, slave
def fork(self):
if self.forked:
return
self.forked = True
master, slave = os.openpty(
) # Note that master and slave are in blocking mode
remove_cloexec(slave)
fast_data_types.set_iutf8_fd(master, True)
stdin, self.stdin = self.stdin, None
ready_read_fd, ready_write_fd = os.pipe()
remove_cloexec(ready_read_fd)
if stdin is not None:
stdin_read_fd, stdin_write_fd = os.pipe()
remove_cloexec(stdin_read_fd)
else:
stdin_read_fd = stdin_write_fd = -1
env = self.final_env
env = tuple('{}={}'.format(k, v) for k, v in env.items())
argv = list(self.argv)
exe = argv[0]
if is_macos and exe == shell_path:
# Some macOS machines need the shell to have argv[0] prefixed by
# hyphen, see https://github.com/kovidgoyal/kitty/issues/247
argv[0] = ('-' + exe.split('/')[-1])
pid = fast_data_types.spawn(exe, self.cwd, tuple(argv), env, master,
slave, stdin_read_fd, stdin_write_fd,
ready_read_fd, ready_write_fd)
os.close(slave)
self.pid = pid
self.child_fd = master
if stdin is not None:
os.close(stdin_read_fd)
fast_data_types.thread_write(stdin_write_fd, stdin)
os.close(ready_read_fd)
self.terminal_ready_fd = ready_write_fd
fcntl.fcntl(self.child_fd, fcntl.F_SETFL,
fcntl.fcntl(self.child_fd, fcntl.F_GETFL) | os.O_NONBLOCK)
return pid
def openpty() -> Tuple[int, int]:
master, slave = os.openpty(
) # Note that master and slave are in blocking mode
remove_cloexec(slave)
fast_data_types.set_iutf8_fd(master, True)
return master, slave