diff options
Diffstat (limited to 'ACE/ace/Hash_Cache_Map_Manager_T.cpp')
| -rw-r--r-- | ACE/ace/Hash_Cache_Map_Manager_T.cpp | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/ACE/ace/Hash_Cache_Map_Manager_T.cpp b/ACE/ace/Hash_Cache_Map_Manager_T.cpp new file mode 100644 index 00000000000..5baac0ae1a0 --- /dev/null +++ b/ACE/ace/Hash_Cache_Map_Manager_T.cpp @@ -0,0 +1,232 @@ +// $Id$ + +#ifndef ACE_HASH_CACHE_MAP_MANAGER_T_CPP +#define ACE_HASH_CACHE_MAP_MANAGER_T_CPP + +#include "ace/Hash_Cache_Map_Manager_T.h" + +#if !defined (ACE_LACKS_PRAGMA_ONCE) +#pragma once +#endif /* ACE_LACKS_PRAGMA_ONCE */ + +#if !defined (__ACE_INLINE__) +#include "ace/Hash_Cache_Map_Manager_T.inl" +#endif /* __ACE_INLINE__ */ + +ACE_BEGIN_VERSIONED_NAMESPACE_DECL + +ACE_ALLOC_HOOK_DEFINE(ACE_Hash_Cache_Map_Manager) + +#define ACE_T1 class KEY, class VALUE, class HASH_KEY, class COMPARE_KEYS, class CACHING_STRATEGY, class ATTRIBUTES +#define ACE_T2 KEY, VALUE, HASH_KEY, COMPARE_KEYS, CACHING_STRATEGY, ATTRIBUTES + +template <ACE_T1> +ACE_Hash_Cache_Map_Manager<ACE_T2>::ACE_Hash_Cache_Map_Manager (CACHING_STRATEGY &caching_s, + size_t size, + ACE_Allocator *alloc) + : ACE_HCMM_BASE (caching_s, + size, + alloc) +{ +} + +template <ACE_T1> +ACE_Hash_Cache_Map_Manager<ACE_T2>::~ACE_Hash_Cache_Map_Manager (void) +{ +} + +template <ACE_T1> int +ACE_Hash_Cache_Map_Manager<ACE_T2>:: bind (const KEY &key, + const VALUE &value, + CACHE_ENTRY *&entry) +{ + // Insert a entry which has the <key> and the <cache_value> which is + // the combination of the <value> and the attributes of the caching + // strategy. + CACHE_VALUE cache_value (value, + this->caching_strategy_.attributes ()); + + int bind_result = this->map_.bind (key, + cache_value, + entry); + + if (bind_result != -1) + { + + int result = this->caching_strategy_.notify_bind (bind_result, + cache_value.second ()); + + if (result == -1) + { + + this->map_.unbind (key); + + // Unless the notification goes thru the bind operation is + // not complete. + bind_result = -1; + + } + } + + return bind_result; +} + +template <ACE_T1> int +ACE_Hash_Cache_Map_Manager<ACE_T2>::rebind (const KEY &key, + const VALUE &value, + CACHE_ENTRY *&entry) +{ + CACHE_VALUE cache_value (value, + this->caching_strategy_.attributes ()); + + int rebind_result = this->map_.rebind (key, + cache_value, + entry); + + if (rebind_result != -1) + { + + int result = this->caching_strategy_.notify_rebind (rebind_result, + cache_value.second ()); + + if (result == -1) + { + + // Make sure the unbind operation is done only when the + // notification fails after a bind which is denoted by + // rebind_result = 0 + if (rebind_result == 0) + this->map_.unbind (key); + + // Unless the notification goes thru the rebind operation is + // not complete. + rebind_result = -1; + + } + + } + + return rebind_result; +} + +template <ACE_T1> int +ACE_Hash_Cache_Map_Manager<ACE_T2>::trybind (const KEY &key, + VALUE &value, + CACHE_ENTRY *&entry) +{ + CACHE_VALUE cache_value (value, + this->caching_strategy_.attributes ()); + + int trybind_result = this->map_.trybind (key, + cache_value, + entry); + + if (trybind_result != -1) + { + int result = this->caching_strategy_.notify_trybind (trybind_result, + cache_value.second ()); + + if (result == -1) + { + + // If the entry has got inserted into the map, it is removed + // due to failure. + if (trybind_result == 0) + this->map_.unbind (key); + + trybind_result = -1; + + } + else + { + + // If an attempt is made to bind an existing entry the value + // is overwritten with the value from the map. + if (trybind_result == 1) + value = cache_value.first (); + + } + + } + + return trybind_result; +} + +template <ACE_T1> int +ACE_Hash_Cache_Map_Manager<ACE_T2>::find (const KEY &key, + CACHE_ENTRY *&entry) +{ + // Lookup the key and populate the <value>. + int find_result = this->map_.find (key, + entry); + + if (find_result != -1) + { + + int result = this->caching_strategy_.notify_find (find_result, + entry->int_id_.second ()); + + // Unless the find and notification operations go thru, this + // method is not successful. + if (result == -1) + find_result = -1; + else + find_result = 0; + + } + + return find_result; +} + +template <ACE_T1> int +ACE_Hash_Cache_Map_Manager<ACE_T2>::find (const KEY &key, + VALUE &value) +{ + CACHE_ENTRY *entry = 0; + + int result = this->find (key, + entry); + + if (result != -1) + { + value = entry->int_id_.first (); + } + + return result; +} + +template <ACE_T1> int +ACE_Hash_Cache_Map_Manager<ACE_T2>::find (const KEY &key) +{ + CACHE_ENTRY *entry = 0; + + return this->find (key, + entry); +} + +template <ACE_T1> int +ACE_Hash_Cache_Map_Manager<ACE_T2>::unbind (CACHE_ENTRY *entry) +{ + // Remove the entry from the cache. + int unbind_result = this->map_.unbind (entry); + + if (unbind_result != -1) + { + + int result = this->caching_strategy_.notify_unbind (unbind_result, + entry->int_id_.second ()); + + if (result == -1) + unbind_result = -1; + + } + + return unbind_result; +} + +ACE_END_VERSIONED_NAMESPACE_DECL + +#undef ACE_T1 +#undef ACE_T2 + +#endif /* ACE_HASH_CACHE_MAP_MANAGER_T_CPP */ |