def start(self):
with self.cv:
if self.state in (JobState.STARTING, JobState.RUNNING):
return
if not self.requires <= self.context.provides:
return
self.logger.info('Starting job')
pid = os.fork()
if pid == 0:
os.kill(os.getpid(), signal.SIGSTOP)
if not self.stdout_fd and not self.stderr_fd:
self.stdout_fd = self.stderr_fd = os.open('/var/tmp/{0}.{1}.log'.format(
self.label, os.getpid()),
os.O_WRONLY | os.O_CREAT | os.O_TRUNC,
0o600
)
os.dup2(os.open('/dev/null', os.O_RDONLY), sys.stdin.fileno())
os.dup2(self.stdout_fd, sys.stdout.fileno())
os.dup2(self.stderr_fd, sys.stderr.fileno())
if self.user:
user = pwd.getpwnam(self.user)
os.setuid(user.pw_uid)
if self.user:
group = grp.getgrnam(self.group)
os.setgid(group.gr_gid)
if not self.program_arguments:
self.program_arguments = [self.program]
bsd.closefrom(3)
os.setsid()
env = BASE_ENV.copy()
env.update(self.environment)
try:
os.execvpe(self.program, self.program_arguments, env)
except:
os._exit(254)
self.logger.debug('Started as PID {0}'.format(pid))
self.pid = pid
self.context.track_pid(self.pid)
self.set_state(JobState.STARTING)
os.waitpid(self.pid, os.WUNTRACED)
os.kill(self.pid, signal.SIGCONT)
def start(self):
with self.cv:
if self.state in (JobState.STARTING, JobState.RUNNING):
return
if not self.requires <= self.context.provides:
return
self.logger.info('Starting job')
pid = os.fork()
if pid == 0:
os.kill(os.getpid(), signal.SIGSTOP)
if not self.stdout_fd and not self.stderr_fd:
self.stdout_fd = self.stderr_fd = os.open('/var/tmp/{0}.{1}.log'.format(
self.label, os.getpid()),
os.O_WRONLY | os.O_CREAT | os.O_TRUNC,
0o600
)
os.dup2(os.open('/dev/null', os.O_RDONLY), sys.stdin.fileno())
os.dup2(self.stdout_fd, sys.stdout.fileno())
os.dup2(self.stderr_fd, sys.stderr.fileno())
if self.user:
user = pwd.getpwnam(self.user)
os.setuid(user.pw_uid)
if self.user:
group = grp.getgrnam(self.group)
os.setgid(group.gr_gid)
if not self.program_arguments:
self.program_arguments = [self.program]
bsd.closefrom(3)
os.setsid()
env = BASE_ENV.copy()
env.update(self.environment)
try:
os.execvpe(self.program, self.program_arguments, env)
except:
os._exit(254)
self.logger.debug('Started as PID {0}'.format(pid))
self.pid = pid
self.context.track_pid(self.pid)
self.set_state(JobState.STARTING)
os.waitpid(self.pid, os.WUNTRACED)
os.kill(self.pid, signal.SIGCONT)
def close_fds(low_fd, max_fd=None):
if max_fd is None:
closefrom(low_fd)
else:
common_close_fds(low_fd, max_fd)
def preexec_fn():
bsd.closefrom(3)
def preexec_fn():
bsd.closefrom(3)
