#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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