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