Revision 4e07ec8c lib/locking.py
| b/lib/locking.py | ||
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Args: |
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shared: whether to acquire in shared mode. By default an exclusive lock |
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will be acquired. |
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blocking: whether to block while trying to acquire or to operate in try-lock mode.
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this locking mode is not supported yet. |
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blocking: whether to block while trying to acquire or to operate in |
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try-lock mode. this locking mode is not supported yet.
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""" |
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if not blocking: |
| ... | ... | |
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(special lock names, or instance/node names) |
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shared: whether to acquire in shared mode. By default an exclusive lock |
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will be acquired. |
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blocking: whether to block while trying to acquire or to operate in try-lock mode.
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this locking mode is not supported yet. |
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blocking: whether to block while trying to acquire or to operate in |
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try-lock mode. this locking mode is not supported yet.
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|
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Returns: |
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True: when all the locks are successfully acquired |
| ... | ... | |
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# just one of them be the already wrong |
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for lname in names: |
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try: |
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lock = self.__lockdict[lname] # raises KeyError if the lock is not there
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lock = self.__lockdict[lname] # raises KeyError if lock is not there |
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acquire_list.append((lname, lock)) |
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except (KeyError): |
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if self.__lock._is_owned(): |
| ... | ... | |
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def __init__(self, nodes=None, instances=None): |
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"""Constructs a new GanetiLockManager object. |
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There should be only a |
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GanetiLockManager object at any time, so this function raises an error if this |
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is not the case. |
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There should be only a GanetiLockManager object at any time, so this |
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function raises an error if this is not the case. |
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Args: |
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nodes: list of node names |
| ... | ... | |
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(special lock names, or instance/node names) |
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shared: whether to acquire in shared mode. By default an exclusive lock |
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will be acquired. |
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blocking: whether to block while trying to acquire or to operate in try-lock mode.
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this locking mode is not supported yet. |
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blocking: whether to block while trying to acquire or to operate in |
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try-lock mode. this locking mode is not supported yet.
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|
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""" |
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assert level in LEVELS, "Invalid locking level %s" % level |
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