mirror of
https://git.rtems.org/rtems-tools/
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144 lines
4.4 KiB
Python
144 lines
4.4 KiB
Python
#
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# RTEMS Tools Project (http://www.rtems.org/)
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# Copyright 2013-2014 Chris Johns (chrisj@rtems.org)
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# All rights reserved.
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#
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# This file is part of the RTEMS Tools package in 'rtems-tools'.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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#
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# RTEMS Testing Consoles
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#
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import errno
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import fcntl
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import os
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import threading
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import time
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import stty
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def save():
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return stty.save()
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def restore(attributes):
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stty.restore(attributes)
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class console(object):
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'''RTEMS Testing console base.'''
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def __init__(self, name, trace):
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self.name = name
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self.trace = trace
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def __del__(self):
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pass
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def _tracing(self):
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return self.trace
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def open(self):
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pass
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def close(self):
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pass
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class stdio(console):
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'''STDIO console.'''
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def __init__(self, trace = False):
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super(stdio, self).__init__('stdio', trace)
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class tty(console):
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'''TTY console connects to serial ports.'''
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raw = 'B115200,~BRKINT,IGNBRK,IGNCR,~ICANON,~ISIG,~IEXTEN,~ECHO,CLOCAL,~CRTSCTS'
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def __init__(self, dev, output, setup = None, trace = False):
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self.tty = None
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self.read_thread = None
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self.dev = dev
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self.output = output
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if setup is None:
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self.setup = raw
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else:
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self.setup = setup
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super(tty, self).__init__(dev, trace)
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def __del__(self):
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super(tty, self).__del__()
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if self._tracing():
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print ':: tty close', self.dev
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fcntl.fcntl(me.tty.fd, fcntl.F_SETFL,
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fcntl.fcntl(me.tty.fd, fcntl.F_GETFL) & ~os.O_NONBLOCK)
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self.close()
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def open(self):
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def _readthread(me, x):
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if self._tracing():
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print ':: tty runner started', self.dev
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fcntl.fcntl(me.tty.fd, fcntl.F_SETFL,
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fcntl.fcntl(me.tty.fd, fcntl.F_GETFL) | os.O_NONBLOCK)
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line = ''
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while me.running:
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time.sleep(0.05)
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try:
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data = me.tty.fd.read()
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except IOError, ioe:
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if ioe.errno == errno.EAGAIN:
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continue
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raise
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except:
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raise
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for c in data:
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if len(c) == 0:
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continue
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if c != chr(0):
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line += c
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if c == '\n':
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me.output(line)
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line = ''
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if self._tracing():
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print ':: tty runner finished', self.dev
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if self._tracing():
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print ':: tty open', self.dev
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self.tty = stty.tty(self.dev)
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self.tty.set(self.setup)
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self.tty.on()
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self.read_thread = threading.Thread(target = _readthread,
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name = 'tty[%s]' % (self.dev),
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args = (self, 0))
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self.read_thread.daemon = True
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self.running = True
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self.read_thread.start()
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def close(self):
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if self.tty:
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time.sleep(1)
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if self.read_thread:
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self.running = False
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self.read_thread.join(1)
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self.tty = None
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