#include <Cached_Connect_Strategy_T.h>
Inheritance diagram for ACE_Cached_Connect_Strategy_Ex< SVC_HANDLER,, CACHING_STRATEGY, ATTRIBUTES, MUTEX >:


Public Types | |
| typedef ACE_Refcounted_Hash_Recyclable< ACE_PEER_CONNECTOR_ADDR > | REFCOUNTED_HASH_RECYCLABLE_ADDRESS |
| typedef ACE_Hash_Cache_Map_Manager< REFCOUNTED_HASH_RECYCLABLE_ADDRESS, SVC_HANDLER *, ACE_Hash< REFCOUNTED_HASH_RECYCLABLE_ADDRESS >, ACE_Equal_To< REFCOUNTED_HASH_RECYCLABLE_ADDRESS >, CACHING_STRATEGY, ATTRIBUTES > | CONNECTION_CACHE |
| typedef CONNECTION_CACHE::CACHE_ENTRY | CONNECTION_CACHE_ENTRY |
| typedef CONNECTION_CACHE::key_type | KEY |
| typedef CONNECTION_CACHE::mapped_type | VALUE |
| typedef ACE_Recyclable_Handler_Cleanup_Strategy< REFCOUNTED_HASH_RECYCLABLE_ADDRESS, ACE_Pair< SVC_HANDLER *, ATTRIBUTES >, ACE_Hash_Map_Manager_Ex< REFCOUNTED_HASH_RECYCLABLE_ADDRESS, ACE_Pair< SVC_HANDLER *, ATTRIBUTES >, ACE_Hash< REFCOUNTED_HASH_RECYCLABLE_ADDRESS >, ACE_Equal_To< REFCOUNTED_HASH_RECYCLABLE_ADDRESS >, MUTEX > > | CLEANUP_STRATEGY |
| typedef ACE_Cached_Connect_Strategy< SVC_HANDLER, ACE_PEER_CONNECTOR_2, MUTEX > | CCSBASE |
Public Member Functions | |
| ACE_Cached_Connect_Strategy_Ex (CACHING_STRATEGY &caching_s, ACE_Creation_Strategy< SVC_HANDLER > *cre_s=0, ACE_Concurrency_Strategy< SVC_HANDLER > *con_s=0, ACE_Recycling_Strategy< SVC_HANDLER > *rec_s=0, MUTEX *lock=0, int delete_lock=0) | |
| Constructor. | |
| virtual | ~ACE_Cached_Connect_Strategy_Ex (void) |
| Destructor. | |
| virtual int | purge_connections (void) |
| Explicit purging of connection entries from the connection cache. | |
| virtual int | mark_as_closed_i (const void *recycling_act) |
| void | cleanup (void) |
| CACHING_STRATEGY & | caching_strategy (void) |
Protected Member Functions | |
| int | find (ACE_Refcounted_Hash_Recyclable< ACE_PEER_CONNECTOR_ADDR > &search_addr, ACE_Hash_Map_Entry< ACE_Refcounted_Hash_Recyclable< ACE_PEER_CONNECTOR_ADDR >, ACE_Pair< SVC_HANDLER *, ATTRIBUTES > > *&entry) |
| Find an idle handle. | |
| virtual int | purge_i (const void *recycling_act) |
| Remove from cache (non-locking version). | |
| virtual int | cache_i (const void *recycling_act) |
| Add to cache (non-locking version). | |
| virtual int | recycle_state_i (const void *recycling_act, ACE_Recyclable_State new_state) |
| Get/Set (non-locking version). | |
| virtual ACE_Recyclable_State | recycle_state_i (const void *recycling_act) const |
| Get (non-locking version). | |
| virtual int | cleanup_hint_i (const void *recycling_act, void **act_holder) |
| Cleanup hint and reset <*act_holder> to zero if <act_holder != 0>. | |
| int | check_hint_i (SVC_HANDLER *&sh, const ACE_PEER_CONNECTOR_ADDR &remote_addr, ACE_Time_Value *timeout, const ACE_PEER_CONNECTOR_ADDR &local_addr, int reuse_addr, int flags, int perms, ACE_Hash_Map_Entry< ACE_Refcounted_Hash_Recyclable< ACE_PEER_CONNECTOR_ADDR >, ACE_Pair< SVC_HANDLER *, ATTRIBUTES > > *&entry, int &found) |
| virtual int | find_or_create_svc_handler_i (SVC_HANDLER *&sh, const ACE_PEER_CONNECTOR_ADDR &remote_addr, ACE_Time_Value *timeout, const ACE_PEER_CONNECTOR_ADDR &local_addr, int reuse_addr, int flags, int perms, ACE_Hash_Map_Entry< ACE_Refcounted_Hash_Recyclable< ACE_PEER_CONNECTOR_ADDR >, ACE_Pair< SVC_HANDLER *, ATTRIBUTES > > *&entry, int &found) |
| virtual int | connect_svc_handler_i (SVC_HANDLER *&sh, const ACE_PEER_CONNECTOR_ADDR &remote_addr, ACE_Time_Value *timeout, const ACE_PEER_CONNECTOR_ADDR &local_addr, int reuse_addr, int flags, int perms, int &found) |
| virtual int | cached_connect (SVC_HANDLER *&sh, const ACE_PEER_CONNECTOR_ADDR &remote_addr, ACE_Time_Value *timeout, const ACE_PEER_CONNECTOR_ADDR &local_addr, int reuse_addr, int flags, int perms) |
Protected Attributes | |
| CONNECTION_CACHE | connection_cache_ |
| Table that maintains the cache of connected s. | |
is intended to be used as a plug-in connection strategy for ACE_Strategy_Connector. It's added value is re-use of established connections and tweaking the role of the cache as per the caching strategy.
Definition at line 48 of file Cached_Connect_Strategy_T.h.
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Definition at line 102 of file Cached_Connect_Strategy_T.h. |
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Definition at line 99 of file Cached_Connect_Strategy_T.h. |
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Definition at line 87 of file Cached_Connect_Strategy_T.h. |
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Definition at line 89 of file Cached_Connect_Strategy_T.h. |
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Reimplemented from ACE_Cached_Connect_Strategy< SVC_HANDLER, ACE_PEER_CONNECTOR_2, MUTEX >. Reimplemented in ACE_Bounded_Cached_Connect_Strategy< SVC_HANDLER,, CACHING_STRATEGY, ATTRIBUTES, MUTEX >. Definition at line 80 of file Cached_Connect_Strategy_T.h. |
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Definition at line 90 of file Cached_Connect_Strategy_T.h. |
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Constructor.
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Destructor.
Definition at line 42 of file Cached_Connect_Strategy_T.cpp. References ACE_Cached_Connect_Strategy_Ex< SVC_HANDLER,, CACHING_STRATEGY, ATTRIBUTES, MUTEX >::cleanup().
00043 {
00044 cleanup ();
00045 }
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Add to cache (non-locking version).
Reimplemented from ACE_Cached_Connect_Strategy< SVC_HANDLER, ACE_PEER_CONNECTOR_2, MUTEX >. Definition at line 374 of file Cached_Connect_Strategy_T.cpp. References ACE_RECYCLABLE_IDLE_AND_PURGABLE, and ACE_Cached_Connect_Strategy_Ex< SVC_HANDLER,, CACHING_STRATEGY, ATTRIBUTES, MUTEX >::CONNECTION_CACHE_ENTRY.
00375 {
00376 // The wonders and perils of ACT
00377 CONNECTION_CACHE_ENTRY *entry = (CONNECTION_CACHE_ENTRY *) recycling_act;
00378
00379 // Mark the <svc_handler> in the cache as not being <in_use>.
00380 // Therefore recyclable is IDLE.
00381 entry->ext_id_.recycle_state (ACE_RECYCLABLE_IDLE_AND_PURGABLE);
00382
00383 return 0;
00384 }
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Connection of the svc_handler with the remote host. This method also encapsulates the connection done with auto_purging under the hood. If the connect failed due to the process running out of file descriptors then, auto_purging of some connections are done from the CONNECTION_CACHE. This frees the descriptors which get used in the connect process and hence the connect operation can succeed. |
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Definition at line 468 of file Cached_Connect_Strategy_T.cpp. References ACE_Cached_Connect_Strategy_Ex< SVC_HANDLER,, CACHING_STRATEGY, ATTRIBUTES, MUTEX >::connection_cache_.
00469 {
00470 return this->connection_cache_.caching_strategy ();
00471 }
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Since g++ version < 2.8 arent happy with templates, this special method had to be devised to avoid memory leaks and perform cleanup of the . Definition at line 527 of file Cached_Connect_Strategy_T.cpp. References ACE_GUARD, ACE_Cached_Connect_Strategy_Ex< SVC_HANDLER,, CACHING_STRATEGY, ATTRIBUTES, MUTEX >::connection_cache_, ACE_Cached_Connect_Strategy_Ex< SVC_HANDLER,, CACHING_STRATEGY, ATTRIBUTES, MUTEX >::CONNECTION_CACHE_ENTRY, and ACE_Cached_Connect_Strategy_Ex< SVC_HANDLER,, CACHING_STRATEGY, ATTRIBUTES, MUTEX >::purge_i(). Referenced by ACE_Cached_Connect_Strategy_Ex< SVC_HANDLER,, CACHING_STRATEGY, ATTRIBUTES, MUTEX >::~ACE_Cached_Connect_Strategy_Ex().
00528 {
00529 // Excluded other threads from changing the cache while we cleanup
00530 ACE_GUARD (MUTEX, ace_mon, *this->lock_);
00531
00532 // Close down all cached service handlers.
00533 typename CONNECTION_CACHE::ITERATOR iter = this->connection_cache_.begin ();
00534 while (iter != this->connection_cache_.end ())
00535 {
00536 if ((*iter).second () != 0)
00537 {
00538 // save entry for future use
00539 CONNECTION_CACHE_ENTRY *entry = (CONNECTION_CACHE_ENTRY *)
00540 (*iter).second ()->recycling_act ();
00541
00542 // close handler
00543 (*iter).second ()->recycler (0, 0);
00544 (*iter).second ()->close ();
00545
00546 // remember next iter
00547 typename CONNECTION_CACHE::ITERATOR next_iter = iter;
00548 ++next_iter;
00549
00550 // purge the item from the hash
00551 this->purge_i (entry);
00552
00553 // assign next iter
00554 iter = next_iter;
00555 }
00556 else
00557 ++iter;
00558 }
00559 }
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Cleanup hint and reset <*act_holder> to zero if <act_holder != 0>.
Reimplemented from ACE_Cached_Connect_Strategy< SVC_HANDLER, ACE_PEER_CONNECTOR_2, MUTEX >. Definition at line 434 of file Cached_Connect_Strategy_T.cpp. References ACE_RECYCLABLE_CLOSED, ACE_Cached_Connect_Strategy_Ex< SVC_HANDLER,, CACHING_STRATEGY, ATTRIBUTES, MUTEX >::CONNECTION_CACHE_ENTRY, and ACE_Cached_Connect_Strategy_Ex< SVC_HANDLER,, CACHING_STRATEGY, ATTRIBUTES, MUTEX >::purge_i().
00436 {
00437 // Reset the <*act_holder> in the confines and protection of the
00438 // lock.
00439 if (act_holder)
00440 *act_holder = 0;
00441
00442 // The wonders and perils of ACT
00443 CONNECTION_CACHE_ENTRY *entry = (CONNECTION_CACHE_ENTRY *) recycling_act;
00444
00445 // Decrement the refcount on the <svc_handler>.
00446 int refcount = entry->ext_id_.decrement ();
00447
00448 // If the svc_handler state is closed and the refcount == 0, call
00449 // close() on svc_handler.
00450 if (entry->ext_id_.recycle_state () == ACE_RECYCLABLE_CLOSED &&
00451 refcount == 0)
00452 {
00453 entry->int_id_.first ()->recycler (0, 0);
00454 entry->int_id_.first ()->close ();
00455 this->purge_i (entry);
00456 }
00457
00458 return 0;
00459 }
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Reimplemented from ACE_Cached_Connect_Strategy< SVC_HANDLER, ACE_PEER_CONNECTOR_2, MUTEX >. |
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Find an idle handle.
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Reimplemented in ACE_Bounded_Cached_Connect_Strategy< SVC_HANDLER,, CACHING_STRATEGY, ATTRIBUTES, MUTEX >. |
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Mark as closed (non-locking version). This is used during the cleanup of the connections purged. Reimplemented from ACE_Cached_Connect_Strategy< SVC_HANDLER, ACE_PEER_CONNECTOR_2, MUTEX >. Definition at line 422 of file Cached_Connect_Strategy_T.cpp. References ACE_RECYCLABLE_CLOSED, and ACE_Cached_Connect_Strategy_Ex< SVC_HANDLER,, CACHING_STRATEGY, ATTRIBUTES, MUTEX >::CONNECTION_CACHE_ENTRY.
00423 {
00424 // The wonders and perils of ACT
00425 CONNECTION_CACHE_ENTRY *entry = (CONNECTION_CACHE_ENTRY *) recycling_act;
00426
00427 // Mark the <svc_handler> in the cache as CLOSED.
00428 entry->ext_id_.recycle_state (ACE_RECYCLABLE_CLOSED);
00429
00430 return 0;
00431 }
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Explicit purging of connection entries from the connection cache.
Definition at line 462 of file Cached_Connect_Strategy_T.cpp. References ACE_Cached_Connect_Strategy_Ex< SVC_HANDLER,, CACHING_STRATEGY, ATTRIBUTES, MUTEX >::connection_cache_.
00463 {
00464 return this->connection_cache_.purge ();
00465 }
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Remove from cache (non-locking version).
Reimplemented from ACE_Cached_Connect_Strategy< SVC_HANDLER, ACE_PEER_CONNECTOR_2, MUTEX >. Definition at line 412 of file Cached_Connect_Strategy_T.cpp. References ACE_Cached_Connect_Strategy_Ex< SVC_HANDLER,, CACHING_STRATEGY, ATTRIBUTES, MUTEX >::connection_cache_, ACE_Cached_Connect_Strategy_Ex< SVC_HANDLER,, CACHING_STRATEGY, ATTRIBUTES, MUTEX >::CONNECTION_CACHE_ENTRY, and ACE_Hash_Cache_Map_Manager< KEY, VALUE, HASH_KEY, COMPARE_KEYS, CACHING_STRATEGY, ATTRIBUTES >::unbind(). Referenced by ACE_Cached_Connect_Strategy_Ex< SVC_HANDLER,, CACHING_STRATEGY, ATTRIBUTES, MUTEX >::cleanup(), and ACE_Cached_Connect_Strategy_Ex< SVC_HANDLER,, CACHING_STRATEGY, ATTRIBUTES, MUTEX >::cleanup_hint_i().
00413 {
00414 // The wonders and perils of ACT
00415 CONNECTION_CACHE_ENTRY *entry = (CONNECTION_CACHE_ENTRY *) recycling_act;
00416
00417 return this->connection_cache_.unbind (entry);
00418 }
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Get (non-locking version).
Reimplemented from ACE_Cached_Connect_Strategy< SVC_HANDLER, ACE_PEER_CONNECTOR_2, MUTEX >. Definition at line 401 of file Cached_Connect_Strategy_T.cpp. References ACE_Cached_Connect_Strategy_Ex< SVC_HANDLER,, CACHING_STRATEGY, ATTRIBUTES, MUTEX >::CONNECTION_CACHE_ENTRY.
00402 {
00403 // The wonders and perils of ACT
00404 CONNECTION_CACHE_ENTRY *entry = (CONNECTION_CACHE_ENTRY *) recycling_act;
00405
00406 // Mark the <svc_handler> in the cache as not being <in_use>.
00407 // Therefore recyclable is IDLE.
00408 return entry->ext_id_.recycle_state ();
00409 }
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Get/Set (non-locking version).
Reimplemented from ACE_Cached_Connect_Strategy< SVC_HANDLER, ACE_PEER_CONNECTOR_2, MUTEX >. Definition at line 387 of file Cached_Connect_Strategy_T.cpp. References ACE_Cached_Connect_Strategy_Ex< SVC_HANDLER,, CACHING_STRATEGY, ATTRIBUTES, MUTEX >::CONNECTION_CACHE_ENTRY.
00389 {
00390 // The wonders and perils of ACT
00391 CONNECTION_CACHE_ENTRY *entry = (CONNECTION_CACHE_ENTRY *) recycling_act;
00392
00393 // Mark the <svc_handler> in the cache as not being <in_use>.
00394 // Therefore recyclable is IDLE.
00395 entry->ext_id_.recycle_state (new_state);
00396
00397 return 0;
00398 }
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1.3.6