本文整理汇总了Python中termios.CEOF属性的典型用法代码示例。如果您正苦于以下问题:Python termios.CEOF属性的具体用法?Python termios.CEOF怎么用?Python termios.CEOF使用的例子?那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类termios
的用法示例。
在下文中一共展示了termios.CEOF属性的4个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: sendeof
# 需要导入模块: import termios [as 别名]
# 或者: from termios import CEOF [as 别名]
def sendeof(self):
"""This sends an EOF to the child. This sends a character which causes
the pending parent output buffer to be sent to the waiting child
program without waiting for end-of-line. If it is the first character
of the line, the read() in the user program returns 0, which signifies
end-of-file. This means to work as expected a sendeof() has to be
called at the beginning of a line. This method does not send a newline.
It is the responsibility of the caller to ensure the eof is sent at the
beginning of a line. """
### Hmmm... how do I send an EOF?
###C if ((m = write(pty, *buf, p - *buf)) < 0)
###C return (errno == EWOULDBLOCK) ? n : -1;
#fd = sys.stdin.fileno()
#old = termios.tcgetattr(fd) # remember current state
#attr = termios.tcgetattr(fd)
#attr[3] = attr[3] | termios.ICANON # ICANON must be set to recognize EOF
#try: # use try/finally to ensure state gets restored
# termios.tcsetattr(fd, termios.TCSADRAIN, attr)
# if hasattr(termios, 'CEOF'):
# os.write (self.child_fd, '%c' % termios.CEOF)
# else:
# # Silly platform does not define CEOF so assume CTRL-D
# os.write (self.child_fd, '%c' % 4)
#finally: # restore state
# termios.tcsetattr(fd, termios.TCSADRAIN, old)
if hasattr(termios, 'VEOF'):
char = termios.tcgetattr(self.child_fd)[6][termios.VEOF]
else:
# platform does not define VEOF so assume CTRL-D
char = chr(4)
self.send(char)
示例2: _make_eof_intr
# 需要导入模块: import termios [as 别名]
# 或者: from termios import CEOF [as 别名]
def _make_eof_intr():
"""Set constants _EOF and _INTR.
This avoids doing potentially costly operations on module load.
"""
global _EOF, _INTR
if (_EOF is not None) and (_INTR is not None):
return
# inherit EOF and INTR definitions from controlling process.
try:
from termios import VEOF, VINTR
try:
fd = sys.__stdin__.fileno()
except ValueError:
# ValueError: I/O operation on closed file
fd = sys.__stdout__.fileno()
intr = ord(termios.tcgetattr(fd)[6][VINTR])
eof = ord(termios.tcgetattr(fd)[6][VEOF])
except (ImportError, OSError, IOError, ValueError, termios.error):
# unless the controlling process is also not a terminal,
# such as cron(1), or when stdin and stdout are both closed.
# Fall-back to using CEOF and CINTR. There
try:
from termios import CEOF, CINTR
(intr, eof) = (CINTR, CEOF)
except ImportError:
# ^C, ^D
(intr, eof) = (3, 4)
_INTR = _byte(intr)
_EOF = _byte(eof)
示例3: _make_eof_intr
# 需要导入模块: import termios [as 别名]
# 或者: from termios import CEOF [as 别名]
def _make_eof_intr():
"""Set constants _EOF and _INTR.
This avoids doing potentially costly operations on module load.
"""
global _EOF, _INTR
if (_EOF is not None) and (_INTR is not None):
return
# inherit EOF and INTR definitions from controlling process.
try:
from termios import VEOF, VINTR
try:
fd = sys.__stdin__.fileno()
except ValueError:
# ValueError: I/O operation on closed file
fd = sys.__stdout__.fileno()
intr = ord(termios.tcgetattr(fd)[6][VINTR])
eof = ord(termios.tcgetattr(fd)[6][VEOF])
except (ImportError, OSError, IOError, ValueError, termios.error):
# unless the controlling process is also not a terminal,
# such as cron(1), or when stdin and stdout are both closed.
# Fall-back to using CEOF and CINTR. There
try:
from termios import CEOF, CINTR
(intr, eof) = (CINTR, CEOF)
except ImportError:
# ^C, ^D
(intr, eof) = (3, 4)
_INTR = _byte(intr)
_EOF = _byte(eof)
示例4: _make_eof_intr
# 需要导入模块: import termios [as 别名]
# 或者: from termios import CEOF [as 别名]
def _make_eof_intr():
"""Set constants _EOF and _INTR.
This avoids doing potentially costly operations on module load.
"""
global _EOF, _INTR
if (_EOF is not None) and (_INTR is not None):
return
# inherit EOF and INTR definitions from controlling process.
try:
from termios import VEOF, VINTR
fd = None
for name in 'stdin', 'stdout':
stream = getattr(sys, '__%s__' % name, None)
if stream is None or not hasattr(stream, 'fileno'):
continue
try:
fd = stream.fileno()
except ValueError:
continue
if fd is None:
# no fd, raise ValueError to fallback on CEOF, CINTR
raise ValueError("No stream has a fileno")
intr = ord(termios.tcgetattr(fd)[6][VINTR])
eof = ord(termios.tcgetattr(fd)[6][VEOF])
except (ImportError, OSError, IOError, ValueError, termios.error):
# unless the controlling process is also not a terminal,
# such as cron(1), or when stdin and stdout are both closed.
# Fall-back to using CEOF and CINTR. There
try:
from termios import CEOF, CINTR
(intr, eof) = (CINTR, CEOF)
except ImportError:
# ^C, ^D
(intr, eof) = (3, 4)
_INTR = _byte(intr)
_EOF = _byte(eof)
# setecho and setwinsize are pulled out here because on some platforms, we need
# to do this from the child before we exec()