mirror of https://github.com/m-labs/artiq.git
Add lockfile support to artiq_devtool.
This commit is contained in:
whitequark
parent
b89929565c
commit
b5d098c6db
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@ -6,6 +6,7 @@
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import sys
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import argparse
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import logging
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import subprocess
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import socket
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import select
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@ -22,20 +23,23 @@ def get_argparser():
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verbosity_args(parser)
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parser.add_argument("-H", "--host", metavar="HOST",
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parser.add_argument("-H", "--host", metavar="HOSTNAME",
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type=str, default="lab.m-labs.hk",
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help="SSH host where the development board is located")
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parser.add_argument("-D", "--device", metavar="DEVICE",
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parser.add_argument("-D", "--device", metavar="HOSTNAME",
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type=str, default="kc705.lab.m-labs.hk",
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help="address or domain corresponding to the development board")
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parser.add_argument("-s", "--serial", metavar="SERIAL",
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parser.add_argument("-s", "--serial", metavar="PATH",
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type=str, default="/dev/ttyUSB_kc705",
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help="TTY device corresponding to the development board")
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parser.add_argument("-l", "--lockfile", metavar="PATH",
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type=str, default="/run/boards/kc705",
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help="The lockfile to be acquired for the duration of the script")
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parser.add_argument("-t", "--target", metavar="TARGET",
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type=str, default="kc705_dds",
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help="Target to build, one of: "
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"kc705_dds kc705_drtio_master kc705_drtio_satellite")
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parser.add_argument("-c", "--config", metavar="TARGET_CFG",
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parser.add_argument("-c", "--config", metavar="PATH",
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type=str, default="openocd-kc705.cfg",
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help="OpenOCD configuration file corresponding to the development board")
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@ -50,6 +54,8 @@ def get_argparser():
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def main():
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args = get_argparser().parse_args()
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init_logger(args)
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if args.verbose == args.quiet == 0:
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logging.getLogger().setLevel(logging.INFO)
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if args.target == "kc705_dds" or args.target == "kc705_drtio_master":
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firmware = "runtime"
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@ -65,6 +71,27 @@ def main():
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"firmware": firmware,
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}
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lock_acquired = False
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def lock():
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nonlocal lock_acquired
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if not lock_acquired:
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logger.info("Acquiring device lock")
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flock = client.spawn_command("flock --verbose --nonblock {} /bin/sleep 86400"
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.format(args.lockfile),
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get_pty=True)
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flock_file = flock.makefile('r')
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while not lock_acquired:
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line = flock_file.readline()
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if not line:
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break
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logger.debug(line.rstrip())
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if line.startswith("flock: executing"):
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lock_acquired = True
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elif line.startswith("flock: failed"):
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logger.error("Failed to get lock")
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sys.exit(1)
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for action in args.actions:
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if action == "build":
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logger.info("Building firmware")
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@ -85,6 +112,8 @@ def main():
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shutil.rmtree(target_dir)
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elif action == "reset":
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lock()
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logger.info("Resetting device")
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client.run_command(
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"{env} artiq_flash start" +
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@ -92,6 +121,8 @@ def main():
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**substs)
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elif action == "boot" or action == "boot+log":
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lock()
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logger.info("Uploading firmware")
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client.get_sftp().put("/tmp/{target}/software/{firmware}/{firmware}.bin"
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.format(target=args.target, firmware=firmware),
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@ -111,6 +142,8 @@ def main():
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client.drain(flterm)
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elif action == "connect":
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lock()
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transport = client.get_transport()
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def forwarder(local_stream, remote_stream):
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@ -141,10 +174,6 @@ def main():
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local_stream, peer_addr = listener.accept()
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logger.info("Accepting %s:%s and opening SSH channel to %s:%s",
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*peer_addr, args.device, port)
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if client.get_transport() is None:
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logger.error("Trying to open a channel before the transport is ready!")
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continue
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try:
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remote_stream = \
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transport.open_channel('direct-tcpip', (args.device, port), peer_addr)
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@ -156,12 +185,14 @@ def main():
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name="forward-{}".format(port), daemon=True)
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thread.start()
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for port in (1380, 1381, 1382, 1383):
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ports = [1380, 1381, 1382, 1383]
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for port in ports:
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thread = threading.Thread(target=listener, args=(port,),
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name="listen-{}".format(port), daemon=True)
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thread.start()
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logger.info("Connecting to device")
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logger.info("Forwarding ports {} to core device and logs from core device"
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.format(", ".join(map(str, ports))))
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client.run_command(
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"{env} python3 flterm.py {serial} --output-only",
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**substs)
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@ -269,10 +269,12 @@ class SSHClient:
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def get_ssh(self):
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if self.ssh is None:
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import paramiko
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logging.getLogger("paramiko").setLevel(logging.WARNING)
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self.ssh = paramiko.SSHClient()
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self.ssh.load_system_host_keys()
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self.ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
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self.ssh.connect(self.host)
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logger.debug("Connecting to {}".format(self.host))
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return self.ssh
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def get_transport(self):
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@ -286,11 +288,11 @@ class SSHClient:
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return self.sftp
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def spawn_command(self, cmd, get_pty=False, **kws):
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logger.info("Executing {}".format(cmd))
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chan = self.get_ssh().get_transport().open_session()
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chan = self.get_transport().open_session()
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chan.set_combine_stderr(True)
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if get_pty:
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chan.get_pty()
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chan.set_combine_stderr(True)
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logger.debug("Executing {}".format(cmd))
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chan.exec_command(cmd.format(tmp=self.tmp, **kws))
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return chan
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