GRPC Core  9.0.0
local_subchannel_pool.h
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18 
19 #ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LOCAL_SUBCHANNEL_POOL_H
20 #define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LOCAL_SUBCHANNEL_POOL_H
21 
23 
25 
26 namespace grpc_core {
27 
28 // The local subchannel pool that is owned by a single channel. It doesn't
29 // support subchannel sharing with other channels by nature. Nor does it support
30 // subchannel retention when a subchannel is not used. The only real purpose of
31 // using this subchannel pool is to allow subchannel reuse within the channel
32 // when an incoming resolver update contains some addresses for which the
33 // channel has already created subchannels.
34 // Thread-unsafe.
36  public:
38  ~LocalSubchannelPool() override;
39 
40  // Implements interface methods.
41  // Thread-unsafe. Intended to be invoked within the client_channel combiner.
43  Subchannel* constructed) override;
44  void UnregisterSubchannel(SubchannelKey* key) override;
45  Subchannel* FindSubchannel(SubchannelKey* key) override;
46 
47  private:
48  // The vtable for subchannel operations in an AVL tree.
49  static const grpc_avl_vtable subchannel_avl_vtable_;
50  // A map from subchannel key to subchannel.
51  grpc_avl subchannel_map_;
52 };
53 
54 } // namespace grpc_core
55 
56 #endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LOCAL_SUBCHANNEL_POOL_H */
Definition: local_subchannel_pool.h:35
Subchannel * FindSubchannel(SubchannelKey *key) override
Definition: local_subchannel_pool.cc:57
~LocalSubchannelPool() override
Definition: local_subchannel_pool.cc:31
LocalSubchannelPool()
Definition: local_subchannel_pool.cc:27
void UnregisterSubchannel(SubchannelKey *key) override
Definition: local_subchannel_pool.cc:53
Subchannel * RegisterSubchannel(SubchannelKey *key, Subchannel *constructed) override
Definition: local_subchannel_pool.cc:35
Definition: subchannel.h:176
Definition: subchannel_pool_interface.h:35
Definition: subchannel_pool_interface.h:63
Round Robin Policy.
Definition: backend_metric.cc:24
vtable for the AVL tree The optional user_data is propagated from the top level grpc_avl_XXX API.
Definition: avl.h:41
"pointer" to an AVL tree - this is a reference counted object - use grpc_avl_ref to add a reference,...
Definition: avl.h:58