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pyterm: try to reconnect on SerialException during connect

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This is what the user would do anyway.
This commit is contained in:
Martine Lenders 2018-11-27 17:37:59 +01:00 committed by Martine S. Lenders
parent 008faef16a
commit 7a9010fefa
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GPG Key ID: CCD317364F63286F
1 changed files with 37 additions and 11 deletions
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48
dist/tools/pyterm/pyterm vendored
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@ -25,6 +25,7 @@ except ImportError:
import ConfigParser as configparser
import cmd
import errno
import serial
import socket
import sys
@ -96,6 +97,7 @@ defaultprompt = '>'
# repeat command on empty line instead of sending the line
defaultrepeat_cmd_empty_line = True
defaultreconnect = True
class SerCmd(cmd.Cmd):
@ -109,7 +111,8 @@ class SerCmd(cmd.Cmd):
confdir=None, conffile=None, host=None, run_name=None,
log_dir_name=None, newline=None, formatter=None,
set_rts=None, set_dtr=None, serprompt=None,
repeat_command_on_empty_line=defaultrepeat_cmd_empty_line):
repeat_command_on_empty_line=defaultrepeat_cmd_empty_line,
reconnect=defaultreconnect):
"""Constructor.
Args:
@ -139,6 +142,7 @@ class SerCmd(cmd.Cmd):
self.newline = newline
self.serprompt = serprompt
self.repeat_command_on_empty_line = repeat_command_on_empty_line
self.reconnect = reconnect
if formatter is not None:
self.fmt_str = formatter
@ -245,16 +249,27 @@ class SerCmd(cmd.Cmd):
sys.exit(1)
# otherwise go for the serial port
elif self.port:
connected = False
self.logger.info("Connect to serial port %s" % self.port)
try:
self.serial_connect()
except OSError as e:
self.logger.error("Cannot connect to serial port {}: {}"
.format(self.port, e.strerror))
sys.exit(1)
except serial.SerialException as e:
self.logger.error("%s", e.strerror)
sys.exit(1)
while not connected:
try:
self.serial_connect()
except serial.SerialException as e:
self.logger.error("%s", e.strerror)
if (not self.reconnect) or (e.errno == errno.ENOENT):
sys.exit(e.errno)
self.logger.info("Trying to reconnect to {} in 10 sec"
.format(self.port))
time.sleep(10)
except OSError as e:
self.logger.error("Cannot connect to serial port {}: {}"
.format(self.port, e.strerror))
sys.exit(1)
except Exception as e:
self.logger.error("Unexpected exception {}".format(e))
sys.exit(1)
else:
connected = True
# wait until connection is established and fire startup
# commands to the node
@ -836,8 +851,19 @@ if __name__ == "__main__":
dest='repeat_command_on_empty_line',
action="store_false",
help="Do not repeat command on empty line")
parser.add_argument("--reconnect",
dest='reconnect',
action='store_true',
help="Try to reconnect when failing on connection "
"setup (Default)")
parser.add_argument("--no-reconnect",
dest='reconnect',
action="store_false",
help="Do not try to reconnect when failing on "
"connection setup (Default)")
parser.set_defaults(
repeat_command_on_empty_line=defaultrepeat_cmd_empty_line)
repeat_command_on_empty_line=defaultrepeat_cmd_empty_line,
reconnect=defaultreconnect)
args = parser.parse_args()