Standardize on the same lock acquire method definition

It appears the the other drivers have a acquire that does not
take a timeout, but the zookeeper driver has a acquire method that
does take a timeout.

To be more consistent just standardize on the acquire not taking
a timeout paramater and having it provided by the driver options
like the IPC and memcached drivers do.

Change-Id: I86d5197ad57a4c891615e100365347e3e0bdd4c3

tooz/drivers/ipc.py

@@ -112,9 +112,7 @@ class IPCDriver(coordination.CoordinationDriver):
         :param lock_timeout: how many seconds to wait when trying to acquire
                              a lock in blocking mode. None means forever, 0
                              means don't wait, any other value means wait
-                             this amount of seconds. super(IPCDriver,
-                             self).__init__() self.lock_timeout =
-                             lock_timeout
+                             this amount of seconds.
         """
         super(IPCDriver, self).__init__()
         self.lock_timeout = int(options.get('lock_timeout', ['30'])[-1])

tooz/drivers/zookeeper.py

@@ -27,11 +27,13 @@ from tooz import locking
 
 
 class ZooKeeperLock(locking.Lock):
-    def __init__(self, name, lock):
+    def __init__(self, name, lock, timeout):
         super(ZooKeeperLock, self).__init__(name)
         self._lock = lock
+        self.timeout = timeout
 
-    def acquire(self, blocking=True, timeout=None):
+    def acquire(self, blocking=True):
+        timeout = self.timeout if blocking else None
         return self._lock.acquire(blocking=blocking,
                                   timeout=timeout)
 
@@ -40,6 +42,15 @@ class ZooKeeperLock(locking.Lock):
 
 
 class BaseZooKeeperDriver(coordination.CoordinationDriver):
+    """Initialize the IPC driver.
+
+    :param timeout: connection timeout to wait when first connecting to the
+                    zookeeper server
+    :param lock_timeout: how many seconds to wait when trying to acquire
+                         a lock in blocking mode. None means forever, 0
+                         means don't wait, any other value means wait
+                         this amount of seconds.
+    """
 
     _TOOZ_NAMESPACE = b"tooz"
 
@@ -47,6 +58,7 @@ class BaseZooKeeperDriver(coordination.CoordinationDriver):
         super(BaseZooKeeperDriver, self).__init__()
         self._member_id = member_id
         self.timeout = int(options.get('timeout', ['10'])[-1])
+        self.lock_timeout = int(options.get('lock_timeout', ['30'])[-1])
 
     def start(self):
         try:
@@ -334,7 +346,8 @@ class KazooDriver(BaseZooKeeperDriver):
             name,
             self._coord.Lock(
                 self.paths_join(b"/", self._TOOZ_NAMESPACE, b"locks", name),
-                self._member_id.decode('ascii')))
+                self._member_id.decode('ascii')),
+            self.lock_timeout)
 
     def run_watchers(self):
         ret = []

tooz/locking.py

@@ -44,7 +44,7 @@ class Lock(object):
         """
 
     @abc.abstractmethod
-    def acquire(self):
+    def acquire(self, blocking=True):
         """Attempts to acquire the lock.
 
         :returns: returns true if acquired (false if not)