Python os.openpty方法代码示例

# 需要导入模块: import os [as 别名]
# 或者: from os import openpty [as 别名]
def slave_open(tty_name):
    """slave_open(tty_name) -> slave_fd
    Open the pty slave and acquire the controlling terminal, returning
    opened filedescriptor.
    Deprecated, use openpty() instead."""

    result = os.open(tty_name, os.O_RDWR)
    try:
        from fcntl import ioctl, I_PUSH
    except ImportError:
        return result
    try:
        ioctl(result, I_PUSH, "ptem")
        ioctl(result, I_PUSH, "ldterm")
    except IOError:
        pass
    return result 

# 需要导入模块: import os [as 别名]
# 或者: from os import openpty [as 别名]
def launch_proc_with_pty(args, stdin=None, stdout=None, stderr=None, echo=True):
    """Similar to pty.fork, but handle stdin/stdout according to parameters
    instead of connecting to the pty

    :return tuple (subprocess.Popen, pty_master)
    """

    def set_ctty(ctty_fd, master_fd):
        os.setsid()
        os.close(master_fd)
        fcntl.ioctl(ctty_fd, termios.TIOCSCTTY, 0)
        if not echo:
            termios_p = termios.tcgetattr(ctty_fd)
            # termios_p.c_lflags
            termios_p[3] &= ~termios.ECHO
            termios.tcsetattr(ctty_fd, termios.TCSANOW, termios_p)
    (pty_master, pty_slave) = os.openpty()
    # pylint: disable=not-an-iterable
    p = yield from asyncio.create_subprocess_exec(*args,
        stdin=stdin,
        stdout=stdout,
        stderr=stderr,
        preexec_fn=lambda: set_ctty(pty_slave, pty_master))
    os.close(pty_slave)
    return p, open(pty_master, 'wb+', buffering=0) 

# 需要导入模块: import os [as 别名]
# 或者: from os import openpty [as 别名]
def __call__(self, *objs):
        if self._fo is None:
            masterfd, slavefd = os.openpty()
            pid = os.fork()
            if pid: # parent
                os.close(masterfd)
                self._fo = os.fdopen(slavefd, "w+b", 0)
                if self._do_stderr:
                    os.close(2)
                    os.dup2(slavefd, 2)
            else: # child
                os.close(slavefd)
                os.execlp("urxvt", "urxvt", "-pty-fd", str(masterfd))
        fo = self._fo
        fo.write("{}: ".format(datetime.now()).encode("utf-8"))
        lo = len(objs) - 1
        for i, o in enumerate(objs):
            fo.write(repr(o).encode("utf-8"))
            if i < lo:
                fo.write(b", ")
        fo.write(b"\n")


# automatic, lazy construction of DEBUG object 

# 需要导入模块: import os [as 别名]
# 或者: from os import openpty [as 别名]
def __init__(self):
        masterfd, slavefd = os.openpty()
        pid = os.fork()
        if pid: # parent
            os.close(masterfd)
            self._fo = os.fdopen(slavefd, "w+", 0)
        else: # child
            os.close(slavefd)
            os.execlp("urxvt", "urxvt", "-pty-fd", str(masterfd))
        self.mode = "rw"
        self.closed = 0
        self.softspace = 0
        # reading methods
        self.read = self._fo.read
        self.readline = self._fo.readline
        self.readlines = self._fo.readlines
        # writing methods
        self.write = self._fo.write
        self.flush = self._fo.flush
        self.writelines = self._fo.writelines 

# 需要导入模块: import os [as 别名]
# 或者: from os import openpty [as 别名]
def slave_open(tty_name):
    """slave_open(tty_name) -> slave_fd
    Open the pty slave and acquire the controlling terminal, returning
    opened filedescriptor.
    Deprecated, use openpty() instead."""

    result = os.open(tty_name, os.O_RDWR)
    try:
        from fcntl import ioctl, I_PUSH
    except ImportError:
        return result
    try:
        ioctl(result, I_PUSH, "ptem")
        ioctl(result, I_PUSH, "ldterm")
    except OSError:
        pass
    return result 

# 需要导入模块: import os [as 别名]
# 或者: from os import openpty [as 别名]
def test_baseline_tty_test_code_no_pipe():
    """Baseline the test code with no pipes on stdin or stdout."""
    master, slave = os.openpty()
    subprocess.run(get_python_command(CODE_ISATTY),
                   check=True,
                   shell=True,
                   stdin=slave,
                   stdout=slave)

    assert 'stdin=True, stdout=True' in os.read(master, 100).decode() 

# 需要导入模块: import os [as 别名]
# 或者: from os import openpty [as 别名]
def test_baseline_tty_test_code_in_pipe():
    """Baseline the test code with a pipe on stdin."""
    master, slave = os.openpty()
    subprocess.run(get_python_command(CODE_ISATTY),
                   check=True,
                   shell=True,
                   stdin=subprocess.PIPE,
                   stdout=slave)

    assert 'stdin=False, stdout=True' in os.read(master, 100).decode() 

# 需要导入模块: import os [as 别名]
# 或者: from os import openpty [as 别名]
def test_baseline_tty_test_code_out_pipe():
    """Baseline the test code with a pipe on stdout."""
    _, slave = os.openpty()
    result = subprocess.run(get_python_command(CODE_ISATTY),
                            check=True,
                            shell=True,
                            stdin=slave,
                            stdout=subprocess.PIPE)

    assert 'stdin=True, stdout=False' in result.stdout.decode() 

# 需要导入模块: import os [as 别名]
# 或者: from os import openpty [as 别名]
def test_baseline_tty_test_code_ttyname_same():
    """Baseline the ttyname code, ensuring it detects matching ttys."""
    master, slave = os.openpty()

    subprocess.run(get_python_command(CODE_TTYNAME),
                   check=True,
                   shell=True,
                   stdin=slave,
                   stdout=slave)

    assert os.ttyname(slave) in os.read(master, 100).decode() 

# 需要导入模块: import os [as 别名]
# 或者: from os import openpty [as 别名]
def test_baseline_tty_test_code_ttyname_different():
    """Baseline the ttyname code, ensuring it detects different ttys."""
    master, slave = os.openpty()
    _, another_slave = os.openpty()

    subprocess.run(get_python_command(CODE_TTYNAME),
                   check=True,
                   shell=True,
                   stdin=slave,
                   stdout=slave)

    assert os.ttyname(another_slave) not in os.read(master, 100).decode() 

# 需要导入模块: import os [as 别名]
# 或者: from os import openpty [as 别名]
def test_main_run_no_pipe():
    """Have CT run the tty test code with no pipes."""
    master, slave = os.openpty()
    subprocess.run(CLI + ' ' + get_python_command(CODE_ISATTY),
                   check=True,
                   shell=True,
                   stdin=slave,
                   stdout=slave)

    assert 'stdin=True, stdout=True' in os.read(master, 100).decode() 

# 需要导入模块: import os [as 别名]
# 或者: from os import openpty [as 别名]
def test_main_run_pipe_in():
    """Have CT run the tty test code with a pipe on stdin."""
    master, slave = os.openpty()
    subprocess.run(CLI + ' ' + get_python_command(CODE_ISATTY),
                   check=True,
                   shell=True,
                   stdin=subprocess.PIPE,
                   stdout=slave)

    assert 'stdin=True, stdout=True' in os.read(master, 100).decode() 

# 需要导入模块: import os [as 别名]
# 或者: from os import openpty [as 别名]
def test_main_run_pipe_out():
    """Have CT run the tty test code with a pipe on stdout."""
    _, slave = os.openpty()
    result = subprocess.run(CLI + ' ' + get_python_command(CODE_ISATTY),
                            check=True,
                            shell=True,
                            stdin=slave,
                            stdout=subprocess.PIPE)

    assert 'stdin=True, stdout=True' in result.stdout.decode() 

# 需要导入模块: import os [as 别名]
# 或者: from os import openpty [as 别名]
def openpty():
    """openpty() -> (master_fd, slave_fd)
    Open a pty master/slave pair, using os.openpty() if possible."""

    try:
        return os.openpty()
    except (AttributeError, OSError):
        pass
    master_fd, slave_name = _open_terminal()
    slave_fd = slave_open(slave_name)
    return master_fd, slave_fd 

# 需要导入模块: import os [as 别名]
# 或者: from os import openpty [as 别名]
def master_open():
    """master_open() -> (master_fd, slave_name)
    Open a pty master and return the fd, and the filename of the slave end.
    Deprecated, use openpty() instead."""

    try:
        master_fd, slave_fd = os.openpty()
    except (AttributeError, OSError):
        pass
    else:
        slave_name = os.ttyname(slave_fd)
        os.close(slave_fd)
        return master_fd, slave_name

    return _open_terminal()