pmbootstrap/pmb/chroot/distccd.py

107 lines
3.2 KiB
Python

"""
Copyright 2017 Oliver Smith
This file is part of pmbootstrap.
pmbootstrap is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
pmbootstrap is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with pmbootstrap. If not, see <http://www.gnu.org/licenses/>.
"""
import logging
import os
import errno
import pmb.chroot
import pmb.config
import pmb.chroot.apk
def get_running_pid(args):
pidfile = args.work + "/chroot_native/home/user/distccd.pid"
if not os.path.exists(pidfile):
return None
with open(pidfile, "r") as handle:
lines = handle.readlines()
return int(lines[0][:-1])
def get_running_arch(args):
"""
:returns: the architecture string of the running distccd process (eg.
"armhf" or "aarch64") or "unknown" if the file does not exist.
"""
file = args.work + "/chroot_native/tmp/distccd_running_arch"
if not os.path.exists(file):
return "unknown"
with open(file, "r") as handle:
lines = handle.readlines()
return lines[0][:-1]
def is_running(args):
"""
:returns: When not running: None
When running: the arch string, e.g. "armhf"
"""
# Get the PID
pid = get_running_pid(args)
if not pid:
return False
# Verify, if it still exists by sending a kill signal
try:
os.kill(pid, 0)
except OSError as err:
if err.errno == errno.ESRCH: # no such process
pmb.chroot.root(args, ["rm", "/home/user/distccd.pid"])
return False
elif err.errno == errno.EPERM: # access denied
return get_running_arch(args)
def start(args, arch):
if is_running(args) == arch:
return
stop(args)
pmb.chroot.apk.install(args, ["distcc", "gcc-cross-wrappers"])
# Start daemon with cross-compiler in path
path = "/usr/lib/gcc-cross-wrappers/" + arch + "/bin:" + pmb.config.chroot_path
daemon = ["PATH=" + path,
"distccd",
"--pid-file", "/home/user/distccd.pid",
"--listen", "127.0.0.1",
"--allow", "127.0.0.1",
"--port", args.port_distccd,
"--log-file", "/home/user/distccd.log",
"--jobs", args.jobs,
"--nice", "19",
"--job-lifetime", "60",
"--daemon"
]
logging.info(
"(native) start distccd (" +
arch +
") on 127.0.0.1:" +
args.port_distccd)
pmb.chroot.user(args, daemon)
# Write down the running architecture
with open(args.work + "/chroot_native/tmp/distccd_running_arch", "w") as handle:
handle.write(arch + "\n")
def stop(args):
arch = is_running(args)
if arch:
logging.info("(native) stop distccd (" + arch + ")")
pmb.chroot.user(args, ["kill", str(get_running_pid(args))])