Class: Zookeeper::CZookeeper
- Inherits:
-
Object
- Object
- Zookeeper::CZookeeper
- Includes:
- Constants, Exceptions, Forked, Logger
- Defined in:
- ext/c_zookeeper.rb,
ext/zookeeper_c.c
Defined Under Namespace
Classes: ClientId, GotNilEventException
Constant Summary collapse
- DEFAULT_SESSION_TIMEOUT_MSEC =
10000
Constants included from Exceptions
Constants included from Constants
Zookeeper::Constants::CONNECTED_EVENT_VALUES, Zookeeper::Constants::EVENT_TYPE_NAMES, Zookeeper::Constants::STATE_NAMES, Zookeeper::Constants::ZAPIERROR, Zookeeper::Constants::ZAUTHFAILED, Zookeeper::Constants::ZBADARGUMENTS, Zookeeper::Constants::ZBADVERSION, Zookeeper::Constants::ZCLOSING, Zookeeper::Constants::ZCONNECTIONLOSS, Zookeeper::Constants::ZDATAINCONSISTENCY, Zookeeper::Constants::ZINVALIDACL, Zookeeper::Constants::ZINVALIDCALLBACK, Zookeeper::Constants::ZINVALIDSTATE, Zookeeper::Constants::ZKRB_GLOBAL_CB_REQ, Zookeeper::Constants::ZMARSHALLINGERROR, Zookeeper::Constants::ZNOAUTH, Zookeeper::Constants::ZNOCHILDRENFOREPHEMERALS, Zookeeper::Constants::ZNODEEXISTS, Zookeeper::Constants::ZNONODE, Zookeeper::Constants::ZNOTEMPTY, Zookeeper::Constants::ZNOTHING, Zookeeper::Constants::ZOK, Zookeeper::Constants::ZOO_ASSOCIATING_STATE, Zookeeper::Constants::ZOO_AUTH_FAILED_STATE, Zookeeper::Constants::ZOO_CHANGED_EVENT, Zookeeper::Constants::ZOO_CHILD_EVENT, Zookeeper::Constants::ZOO_CLOSED_STATE, Zookeeper::Constants::ZOO_CONNECTED_STATE, Zookeeper::Constants::ZOO_CONNECTING_STATE, Zookeeper::Constants::ZOO_CREATED_EVENT, Zookeeper::Constants::ZOO_DELETED_EVENT, Zookeeper::Constants::ZOO_EPHEMERAL, Zookeeper::Constants::ZOO_EXPIRED_SESSION_STATE, Zookeeper::Constants::ZOO_LOG_LEVEL_DEBUG, Zookeeper::Constants::ZOO_LOG_LEVEL_ERROR, Zookeeper::Constants::ZOO_LOG_LEVEL_INFO, Zookeeper::Constants::ZOO_LOG_LEVEL_WARN, Zookeeper::Constants::ZOO_NOTWATCHING_EVENT, Zookeeper::Constants::ZOO_SEQUENCE, Zookeeper::Constants::ZOO_SESSION_EVENT, Zookeeper::Constants::ZOPERATIONTIMEOUT, Zookeeper::Constants::ZRUNTIMEINCONSISTENCY, Zookeeper::Constants::ZSESSIONEXPIRED, Zookeeper::Constants::ZSESSIONMOVED, Zookeeper::Constants::ZSYSTEMERROR, Zookeeper::Constants::ZUNIMPLEMENTED
Constants included from ACLs::Constants
ACLs::Constants::ZOO_ANYONE_ID_UNSAFE, ACLs::Constants::ZOO_AUTH_IDS, ACLs::Constants::ZOO_CREATOR_ALL_ACL, ACLs::Constants::ZOO_OPEN_ACL_UNSAFE, ACLs::Constants::ZOO_PERM_ADMIN, ACLs::Constants::ZOO_PERM_ALL, ACLs::Constants::ZOO_PERM_CREATE, ACLs::Constants::ZOO_PERM_DELETE, ACLs::Constants::ZOO_PERM_READ, ACLs::Constants::ZOO_PERM_WRITE, ACLs::Constants::ZOO_READ_ACL_UNSAFE
Instance Attribute Summary collapse
-
#original_pid ⇒ Object
Returns the value of attribute original_pid.
Class Method Summary collapse
-
.get_debug_level ⇒ Object
assume we’re at debug level.
- .set_debug_level(value) ⇒ Object
Instance Method Summary collapse
- #associating? ⇒ Boolean
- #close ⇒ Object
- #closed? ⇒ Boolean
- #connected? ⇒ Boolean
- #connecting? ⇒ Boolean
-
#initialize(host, event_queue, opts = {}) ⇒ CZookeeper
constructor
A new instance of CZookeeper.
- #running? ⇒ Boolean
- #shutting_down? ⇒ Boolean
- #state ⇒ Object
-
#wait_until_connected(timeout = 10) ⇒ Object
this implementation is gross, but i don’t really see another way of doing it without more grossness.
Methods included from Logger
Methods included from Exceptions
Methods included from Constants
#event_by_value, #state_by_value
Methods included from Forked
Constructor Details
#initialize(host, event_queue, opts = {}) ⇒ CZookeeper
Returns a new instance of CZookeeper.
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 |
# File 'ext/c_zookeeper.rb', line 33 def initialize(host, event_queue, opts={}) @host = host @event_queue = event_queue # keep track of the pid that created us update_pid! # used by the C layer. CZookeeper sets this to true when the init method # has completed. once this is set to true, it stays true. # # you should grab the @start_stop_mutex before messing with this flag @_running = nil # This is set to true after destroy_zkrb_instance has been called and all # CZookeeper state has been cleaned up @_closed = false # also used by the C layer # set by the ruby side to indicate we are in shutdown mode used by method_get_next_event @_shutting_down = false # the actual C data is stashed in this ivar. never *ever* touch this @_data = nil @_session_timeout_msec = DEFAULT_SESSION_TIMEOUT_MSEC if cid = opts[:client_id] raise ArgumentError, "opts[:client_id] must be a CZookeeper::ClientId" unless cid.kind_of?(ClientId) raise ArgumentError, "session_id must not be nil" if cid.session_id.nil? end @_client_id = opts[:client_id] @start_stop_mutex = Monitor.new # used to signal that we're running @running_cond = @start_stop_mutex.new_cond # used to signal we've received the connected event @connected_cond = @start_stop_mutex.new_cond @event_thread = nil setup_event_thread! zkrb_init(@host) logger.debug { "init returned!" } end |
Instance Attribute Details
#original_pid ⇒ Object
Returns the value of attribute original_pid.
21 22 23 |
# File 'ext/c_zookeeper.rb', line 21 def original_pid @original_pid end |
Class Method Details
.get_debug_level ⇒ Object
assume we’re at debug level
24 25 26 |
# File 'ext/c_zookeeper.rb', line 24 def self.get_debug_level @debug_level ||= ZOO_LOG_LEVEL_INFO end |
.set_debug_level(value) ⇒ Object
28 29 30 31 |
# File 'ext/c_zookeeper.rb', line 28 def self.set_debug_level(value) @debug_level = value set_zkrb_debug_level(value) end |
Instance Method Details
#associating? ⇒ Boolean
102 103 104 |
# File 'ext/c_zookeeper.rb', line 102 def associating? state == ZOO_ASSOCIATING_STATE end |
#close ⇒ Object
106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 |
# File 'ext/c_zookeeper.rb', line 106 def close return if closed? fn_close = proc do if !@_closed and @_data logger.debug { "CALLING CLOSE HANDLE!!" } close_handle end end if forked? fn_close.call else shut_down! stop_event_thread! @start_stop_mutex.synchronize(&fn_close) end nil end |
#closed? ⇒ Boolean
82 83 84 |
# File 'ext/c_zookeeper.rb', line 82 def closed? @start_stop_mutex.synchronize { !!@_closed } end |
#connected? ⇒ Boolean
94 95 96 |
# File 'ext/c_zookeeper.rb', line 94 def connected? state == ZOO_CONNECTED_STATE end |
#connecting? ⇒ Boolean
98 99 100 |
# File 'ext/c_zookeeper.rb', line 98 def connecting? state == ZOO_CONNECTING_STATE end |
#running? ⇒ Boolean
86 87 88 |
# File 'ext/c_zookeeper.rb', line 86 def running? @start_stop_mutex.synchronize { !!@_running } end |
#shutting_down? ⇒ Boolean
90 91 92 |
# File 'ext/c_zookeeper.rb', line 90 def shutting_down? @start_stop_mutex.synchronize { !!@_shutting_down } end |
#state ⇒ Object
127 128 129 130 |
# File 'ext/c_zookeeper.rb', line 127 def state return ZOO_CLOSED_STATE if closed? zkrb_state end |
#wait_until_connected(timeout = 10) ⇒ Object
this implementation is gross, but i don’t really see another way of doing it without more grossness
returns true if we’re connected, false if we’re not
if timeout is nil, we never time out, and wait forever for CONNECTED state
139 140 141 142 143 144 145 146 |
# File 'ext/c_zookeeper.rb', line 139 def wait_until_connected(timeout=10) @start_stop_mutex.synchronize do wait_until_running(timeout) @connected_cond.wait(timeout) unless connected? end connected? end |