def release_suite_access( self):
server = lockserver( self.host, port=self.port ).get()
result = server.release_suite_access( self.suite_dir, self.suite )
if not result:
return False
else:
return True
def request_suite_access( self, exclusive=True ):
# suite config files should specify whether or not a suite is
# 'exclusive' - i.e. is it possible to run multiple copies (with
# different registered group names) of the entire suite at
# once?
# GET A NEW CONNECTION WITH EACH REQUEST
# TODO - OR GET A SINGLE CONNECTION IN INIT
server = lockserver( self.host, port=self.port ).get()
(result, reason) = server.get_suite_access( self.suite_dir, self.suite, self.cylc_mode, exclusive )
if not result:
print >> sys.stderr, 'ERROR, failed to get suite access:'
print >> sys.stderr, reason
return False
else:
return True
def release(self):
if not self.use_lock_server:
#print >> sys.stderr, "WARNING: you are not using the cylc lockserver."
return True
# Owner required here because cylc suites can run tasks as other
# users - but the lockserver is owned by the suite owner:
server = lockserver(self.host, owner=self.owner, port=self.port).get()
if server.is_locked(self.task_id, self.suite):
if server.release(self.task_id, self.suite):
print "Released task lock"
return True
else:
print >> sys.stderr, "Failed to release task lock"
return False
else:
print >> sys.stderr, "WARNING", self.suite + ':' + self.task_id, "was not locked!"
return True
def release(self):
if not self.use_lock_server:
# print >> sys.stderr, "WARNING: you are not using the cylc lockserver."
return True
# Owner required here because cylc suites can run tasks as other
# users - but the lockserver is owned by the suite owner:
server = lockserver(self.host, owner=self.owner, port=self.port).get()
if server.is_locked(self.task_id, self.suite):
if server.release(self.task_id, self.suite):
print "Released task lock"
return True
else:
print >> sys.stderr, "Failed to release task lock"
return False
else:
print >> sys.stderr, "WARNING", self.suite + ":" + self.task_id, "was not locked!"
return True
def acquire( self ):
# print statements here will go to task stdout and stderr
if not self.use_lock_server:
#print >> sys.stderr, "WARNING: you are not using the cylc lockserver."
return True
# Owner required here because cylc suites can run tasks as other
# users - but the lockserver is owned by the suite owner:
server = lockserver( self.host, owner=self.owner, port=self.port ).get()
if server.acquire( self.task_id, self.suite ):
print "Acquired task lock"
return True
else:
print >> sys.stderr, "Failed to acquire task lock"
if server.is_locked( self.task_id, self.suite ):
print >> sys.stderr, self.suite + ':' + self.task_id, "is already locked!"
return False
def acquire(self):
# print statements here will go to task stdout and stderr
if not self.use_lock_server:
#print >> sys.stderr, "WARNING: you are not using the cylc lockserver."
return True
# Owner required here because cylc suites can run tasks as other
# users - but the lockserver is owned by the suite owner:
server = lockserver(self.host, owner=self.owner, port=self.port).get()
if server.acquire(self.task_id, self.suite):
print "Acquired task lock"
return True
else:
print >> sys.stderr, "Failed to acquire task lock"
if server.is_locked(self.task_id, self.suite):
print >> sys.stderr, self.suite + ':' + self.task_id, "is already locked!"
return False
