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Diffstat (limited to 'TAO/orbsvcs/orbsvcs/Naming/Persistent_Context_Index.h')
| -rw-r--r-- | TAO/orbsvcs/orbsvcs/Naming/Persistent_Context_Index.h | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/TAO/orbsvcs/orbsvcs/Naming/Persistent_Context_Index.h b/TAO/orbsvcs/orbsvcs/Naming/Persistent_Context_Index.h deleted file mode 100644 index 2b60b3ede0f..00000000000 --- a/TAO/orbsvcs/orbsvcs/Naming/Persistent_Context_Index.h +++ /dev/null @@ -1,150 +0,0 @@ -/* -*- C++ -*- */ -// $Id$ - -// ============================================================================ -// -// = LIBRARY -// cos -// -// = FILENAME -// Persistent_Context_Index.h -// -// = AUTHOR -// Marina Spivak <marina@cs.wustl.edu> -// -// ============================================================================ - -#ifndef TAO_PERSISTENT_CONTEXT_INDEX_H -#define TAO_PERSISTENT_CONTEXT_INDEX_H - -#include "Persistent_Entries.h" - -class TAO_ORBSVCS_Export TAO_Persistent_Context_Index -{ - // = TITLE - // This class facilitates implementation of Persistent - // Naming Service. It keeps track, centrally, of several pieces of - // info for each Persistent Naming Context, allowing to perform the - // initialization necessary for each Naming Context to - // restore the state of the Naming Service from persistent storage - // on server start-up. - // - // = DESCRIPTION - // This class creates a memory-mapped file, allocates a hash - // table from that file, and uses the hash table to store POA id, - // and table and counter pointers for each Persistent Naming - // Context. There are methods for adding and deleting entries - // from this hash table as new Persistent Naming Contexts are - // created and old ones are destroyed. This hash table - // facilitates Persistent Naming Context servant initialization - // upon Naming Server start-up. -public: - // = Some typedefs for convenience. - - typedef ACE_Hash_Map_With_Allocator<TAO_Persistent_Index_ExtId, - TAO_Persistent_Index_IntId> CONTEXT_INDEX; - // Hash map in which we will store info about each Persistent Naming Context. - - typedef ACE_Hash_Map_With_Allocator<TAO_Persistent_ExtId, - TAO_Persistent_IntId> CONTEXT; - // Hash map used by Persistent Naming Context to keep its state. - - typedef ACE_Allocator_Adapter <ACE_Malloc <ACE_MMAP_MEMORY_POOL, ACE_SYNCH_MUTEX> - > ALLOCATOR; - // Allocator we will be using to make the Naming Service persistent. - - // = Initialization and termination methods. - - TAO_Persistent_Context_Index (CORBA::ORB_ptr orb, - PortableServer::POA_ptr poa); - // Constructor. - - int open (LPCTSTR file_name, - void * base_address = ACE_DEFAULT_BASE_ADDR); - // Create ACE_Allocator, open/create memory-mapped file with the - // specified file name/base address. Find or allocate <index_>. - // Return 0 on success or -1 on failure. - - int init (size_t context_size); - // If <index_> contains no entries (i.e., was just created), create - // a root Persistent Naming Context servant with table of size - // <context_size>, and make an entry for it - // in the <index_>. If <index_> contains entries, create a - // Persistent Naming Context servant for each entry. Return 0 on - // success and -1 on failure. - - ~TAO_Persistent_Context_Index (void); - // Destructor. The memory mapped file that was opened/created is - // not deleted, since we want it to keep the state of the Naming - // Service until the next run. - - // = Methods for adding/removing entries. - - int bind (const char *poa_id, - ACE_UINT32 *&counter, - CONTEXT *hash_map); - // Create an entry for a Persistent Naming Context in <index_>, - // i.e., a context with <poa_id>, <counter> and <hash_map> has just - // been created, and is registering with us. - - int unbind (const char *poa_id); - // Remove an entry for the Persistent Naming Context with <poa_id> - // from <index_> (i.e., this context has just been destroyed). - - // = Accessors. - - ACE_Allocator *allocator (void); - // Return allocator. - - CORBA::ORB_ptr orb (void); - // Return orb pointer. - - char *root_ior (void); - // Return ior of the root Naming Context (returns a copy - must be - // deallocated by the user). - -private: - - int recreate_all (void); - // Helper for the <init> method. Iterates over <index_>, and - // creates a servant for each entry. - - int create_index (void); - // Helper for the <open> method. - - int create_index_helper (void *buffer); - // Helper for <create_index> method: places hash table into an - // allocated space. - - ACE_SYNCH_MUTEX lock_; - // Lock to prevent multiple threads from modifying entries in the - // <index_> simultanneously. - - ALLOCATOR *allocator_; - // Allocator that deals out memory from a memory-mapped file. We - // use it here, and in TAO_Persistent_Naming_Context, whenever we - // deal with data that should be kept in persistent store. - - CONTEXT_INDEX *index_; - // Hash map where we keep entries for all Persistent Naming - // Contexts. - - LPCTSTR index_file_; - // Name of the memory-mapped file used by <allocator_>. - - void *base_address_; - // Base address for the memory-mapped file. - - CORBA::ORB_var orb_; - // ORB. We use it for several object_to_string conversions, and - // keep it around for Persistent Naming Contexts' use. - - PortableServer::POA_var poa_; - // POA under which to register Persistent Naming Context servants - // during start-up. - - CORBA::String_var root_ior_; - // The ior of the root Naming Context. -}; - -#endif /* TAO_PERSISTENT_CONTEXT_INDEX_H */ |