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#!/usr/bin/env python
import os
import sys
import warnings
sys.path.insert(0, os.path.join(os.path.dirname(os.path.dirname(sys.argv[0])), 'lib'))
from bb import fetch2
import logging
import bb
import select
import errno
import signal
# Users shouldn't be running this code directly
if len(sys.argv) != 2 or sys.argv[1] != "decafbad":
print("bitbake-worker is meant for internal execution by bitbake itself, please don't use it standalone.")
sys.exit(1)
logger = logging.getLogger("BitBake")
try:
import cPickle as pickle
except ImportError:
import pickle
bb.msg.note(1, bb.msg.domain.Cache, "Importing cPickle failed. Falling back to a very slow implementation.")
worker_pipe = sys.stdout.fileno()
bb.utils.nonblockingfd(worker_pipe)
handler = bb.event.LogHandler()
logger.addHandler(handler)
if 0:
# Code to write out a log file of all events passing through the worker
logfilename = "/tmp/workerlogfile"
format_str = "%(levelname)s: %(message)s"
conlogformat = bb.msg.BBLogFormatter(format_str)
consolelog = logging.FileHandler(logfilename)
bb.msg.addDefaultlogFilter(consolelog)
consolelog.setFormatter(conlogformat)
logger.addHandler(consolelog)
worker_queue = ""
def worker_fire(event, d):
data = "<event>" + pickle.dumps(event) + "</event>"
worker_fire_prepickled(data)
def worker_fire_prepickled(event):
global worker_queue
worker_queue = worker_queue + event
worker_flush()
def worker_flush():
global worker_queue, worker_pipe
if not worker_queue:
return
try:
written = os.write(worker_pipe, worker_queue)
worker_queue = worker_queue[written:]
except (IOError, OSError) as e:
if e.errno != errno.EAGAIN:
raise
def worker_child_fire(event, d):
global worker_pipe
data = "<event>" + pickle.dumps(event) + "</event>"
worker_pipe.write(data)
bb.event.worker_fire = worker_fire
lf = None
#lf = open("/tmp/workercommandlog", "w+")
def workerlog_write(msg):
if lf:
lf.write(msg)
lf.flush()
def fork_off_task(cfg, data, workerdata, fn, task, taskname, appends, quieterrors=False):
# We need to setup the environment BEFORE the fork, since
# a fork() or exec*() activates PSEUDO...
envbackup = {}
fakeenv = {}
umask = None
taskdep = workerdata["taskdeps"][fn]
if 'umask' in taskdep and taskname in taskdep['umask']:
# umask might come in as a number or text string..
try:
umask = int(taskdep['umask'][taskname],8)
except TypeError:
umask = taskdep['umask'][taskname]
if 'fakeroot' in taskdep and taskname in taskdep['fakeroot']:
envvars = (workerdata["fakerootenv"][fn] or "").split()
for key, value in (var.split('=') for var in envvars):
envbackup[key] = os.environ.get(key)
os.environ[key] = value
fakeenv[key] = value
fakedirs = (workerdata["fakerootdirs"][fn] or "").split()
for p in fakedirs:
bb.utils.mkdirhier(p)
logger.debug(2, 'Running %s:%s under fakeroot, fakedirs: %s' %
(fn, taskname, ', '.join(fakedirs)))
else:
envvars = (workerdata["fakerootnoenv"][fn] or "").split()
for key, value in (var.split('=') for var in envvars):
envbackup[key] = os.environ.get(key)
os.environ[key] = value
fakeenv[key] = value
sys.stdout.flush()
sys.stderr.flush()
try:
pipein, pipeout = os.pipe()
pipein = os.fdopen(pipein, 'rb', 4096)
pipeout = os.fdopen(pipeout, 'wb', 0)
pid = os.fork()
except OSError as e:
bb.msg.fatal("RunQueue", "fork failed: %d (%s)" % (e.errno, e.strerror))
if pid == 0:
global worker_pipe
pipein.close()
# Save out the PID so that the event can include it the
# events
bb.event.worker_pid = os.getpid()
bb.event.worker_fire = worker_child_fire
worker_pipe = pipeout
# Make the child the process group leader
os.setpgid(0, 0)
# No stdin
newsi = os.open(os.devnull, os.O_RDWR)
os.dup2(newsi, sys.stdin.fileno())
if umask:
os.umask(umask)
data.setVar("BB_WORKERCONTEXT", "1")
data.setVar("BUILDNAME", workerdata["buildname"])
data.setVar("DATE", workerdata["date"])
data.setVar("TIME", workerdata["time"])
bb.parse.siggen.set_taskdata(workerdata["hashes"], workerdata["hash_deps"], workerdata["sigchecksums"])
ret = 0
try:
the_data = bb.cache.Cache.loadDataFull(fn, appends, data)
the_data.setVar('BB_TASKHASH', workerdata["runq_hash"][task])
for h in workerdata["hashes"]:
the_data.setVar("BBHASH_%s" % h, workerdata["hashes"][h])
for h in workerdata["hash_deps"]:
the_data.setVar("BBHASHDEPS_%s" % h, workerdata["hash_deps"][h])
# exported_vars() returns a generator which *cannot* be passed to os.environ.update()
# successfully. We also need to unset anything from the environment which shouldn't be there
exports = bb.data.exported_vars(the_data)
bb.utils.empty_environment()
for e, v in exports:
os.environ[e] = v
for e in fakeenv:
os.environ[e] = fakeenv[e]
the_data.setVar(e, fakeenv[e])
the_data.setVarFlag(e, 'export', "1")
if quieterrors:
the_data.setVarFlag(taskname, "quieterrors", "1")
except Exception as exc:
if not quieterrors:
logger.critical(str(exc))
os._exit(1)
try:
if not cfg.dry_run:
ret = bb.build.exec_task(fn, taskname, the_data, cfg.profile)
os._exit(ret)
except:
os._exit(1)
else:
for key, value in envbackup.iteritems():
if value is None:
del os.environ[key]
else:
os.environ[key] = value
return pid, pipein, pipeout
class runQueueWorkerPipe():
"""
Abstraction for a pipe between a worker thread and the worker server
"""
def __init__(self, pipein, pipeout):
self.input = pipein
if pipeout:
pipeout.close()
bb.utils.nonblockingfd(self.input)
self.queue = ""
def read(self):
start = len(self.queue)
try:
self.queue = self.queue + self.input.read(102400)
except (OSError, IOError) as e:
if e.errno != errno.EAGAIN:
raise
end = len(self.queue)
index = self.queue.find("</event>")
while index != -1:
worker_fire_prepickled(self.queue[:index+8])
self.queue = self.queue[index+8:]
index = self.queue.find("</event>")
return (end > start)
def close(self):
while self.read():
continue
if len(self.queue) > 0:
print("Warning, worker child left partial message: %s" % self.queue)
self.input.close()
normalexit = False
class BitbakeWorker(object):
def __init__(self, din):
self.input = din
bb.utils.nonblockingfd(self.input)
self.queue = ""
self.cookercfg = None
self.databuilder = None
self.data = None
self.build_pids = {}
self.build_pipes = {}
def serve(self):
while True:
(ready, _, _) = select.select([self.input] + [i.input for i in self.build_pipes.values()], [] , [], 1)
if self.input in ready or len(self.queue):
start = len(self.queue)
try:
self.queue = self.queue + self.input.read()
except (OSError, IOError):
pass
end = len(self.queue)
self.handle_item("cookerconfig", self.handle_cookercfg)
self.handle_item("workerdata", self.handle_workerdata)
self.handle_item("runtask", self.handle_runtask)
self.handle_item("finishnow", self.handle_finishnow)
self.handle_item("ping", self.handle_ping)
self.handle_item("quit", self.handle_quit)
for pipe in self.build_pipes:
self.build_pipes[pipe].read()
if len(self.build_pids):
self.process_waitpid()
worker_flush()
def handle_item(self, item, func):
if self.queue.startswith("<" + item + ">"):
index = self.queue.find("</" + item + ">")
while index != -1:
func(self.queue[(len(item) + 2):index])
self.queue = self.queue[(index + len(item) + 3):]
index = self.queue.find("</" + item + ">")
def handle_cookercfg(self, data):
self.cookercfg = pickle.loads(data)
self.databuilder = bb.cookerdata.CookerDataBuilder(self.cookercfg, worker=True)
self.databuilder.parseBaseConfiguration()
self.data = self.databuilder.data
def handle_workerdata(self, data):
self.workerdata = pickle.loads(data)
bb.msg.loggerDefaultDebugLevel = self.workerdata["logdefaultdebug"]
bb.msg.loggerDefaultVerbose = self.workerdata["logdefaultverbose"]
bb.msg.loggerVerboseLogs = self.workerdata["logdefaultverboselogs"]
bb.msg.loggerDefaultDomains = self.workerdata["logdefaultdomain"]
self.data.setVar("PRSERV_HOST", self.workerdata["prhost"])
def handle_ping(self, _):
workerlog_write("Handling ping\n")
logger.warn("Pong from bitbake-worker!")
def handle_quit(self, data):
workerlog_write("Handling quit\n")
global normalexit
normalexit = True
sys.exit(0)
def handle_runtask(self, data):
fn, task, taskname, quieterrors, appends = pickle.loads(data)
workerlog_write("Handling runtask %s %s %s\n" % (task, fn, taskname))
pid, pipein, pipeout = fork_off_task(self.cookercfg, self.data, self.workerdata, fn, task, taskname, appends, quieterrors)
self.build_pids[pid] = task
self.build_pipes[pid] = runQueueWorkerPipe(pipein, pipeout)
def process_waitpid(self):
"""
Return none is there are no processes awaiting result collection, otherwise
collect the process exit codes and close the information pipe.
"""
try:
pid, status = os.waitpid(-1, os.WNOHANG)
if pid == 0 or os.WIFSTOPPED(status):
return None
except OSError:
return None
workerlog_write("Exit code of %s for pid %s\n" % (status, pid))
if os.WIFEXITED(status):
status = os.WEXITSTATUS(status)
elif os.WIFSIGNALED(status):
# Per shell conventions for $?, when a process exits due to
# a signal, we return an exit code of 128 + SIGNUM
status = 128 + os.WTERMSIG(status)
task = self.build_pids[pid]
del self.build_pids[pid]
self.build_pipes[pid].close()
del self.build_pipes[pid]
worker_fire_prepickled("<exitcode>" + pickle.dumps((task, status)) + "</exitcode>")
def handle_finishnow(self, _):
if self.build_pids:
logger.info("Sending SIGTERM to remaining %s tasks", len(self.build_pids))
for k, v in self.build_pids.iteritems():
try:
os.kill(-k, signal.SIGTERM)
os.waitpid(-1, 0)
except:
pass
for pipe in self.build_pipes:
self.build_pipes[pipe].read()
try:
worker = BitbakeWorker(sys.stdin)
worker.serve()
except BaseException as e:
if not normalexit:
import traceback
sys.stderr.write(traceback.format_exc())
sys.stderr.write(str(e))
while len(worker_queue):
worker_flush()
workerlog_write("exitting")
sys.exit(0)