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-rw-r--r--ace/Token_Manager.cpp277
1 files changed, 0 insertions, 277 deletions
diff --git a/ace/Token_Manager.cpp b/ace/Token_Manager.cpp
deleted file mode 100644
index aff18c45f91..00000000000
--- a/ace/Token_Manager.cpp
+++ /dev/null
@@ -1,277 +0,0 @@
-// Token_Manager.cpp
-// $Id$
-
-#define ACE_BUILD_DLL
-#include "ace/Token_Manager.h"
-#include "ace/Object_Manager.h"
-
-#if !defined (__ACE_INLINE__)
-#include "ace/Token_Manager.i"
-#endif /* __ACE_INLINE__ */
-
-ACE_RCSID(ace, Token_Manager, "$Id$")
-
-// singleton token manager
-ACE_Token_Manager *ACE_Token_Manager::token_manager_ = 0;
-
-ACE_Token_Manager::ACE_Token_Manager ()
-{
- ACE_TRACE ("ACE_Token_Manager::ACE_Token_Manager");
-}
-
-ACE_Token_Manager::~ACE_Token_Manager ()
-{
- ACE_TRACE ("ACE_Token_Manager::~ACE_Token_Manager");
-
- COLLECTION_ITERATOR iterator (collection_);
-
- for (COLLECTION_ENTRY *temp = 0;
- iterator.next (temp) != 0;
- iterator.advance ())
- {
- // @ should I be doing an unbind here?
- delete temp->int_id_;
- // The ext_id_'s delete themselves when the array of
- // COLLECTION_ENTRYs goes away.
- }
-}
-
-ACE_Token_Manager *
-ACE_Token_Manager::instance (void)
-{
- ACE_TRACE ("ACE_Token_Manager::token_manager");
-
- // This first check is to avoid acquiring the mutex in the common
- // case. Double-Check pattern rules.
- if (token_manager_ == 0)
- {
-#if defined (ACE_MT_SAFE) && (ACE_MT_SAFE != 0)
- ACE_TOKEN_CONST::MUTEX *lock =
- ACE_Managed_Object<ACE_TOKEN_CONST::MUTEX>::get_preallocated_object
- (ACE_Object_Manager::ACE_TOKEN_MANAGER_CREATION_LOCK);
- ACE_GUARD_RETURN (ACE_TOKEN_CONST::MUTEX, ace_mon, *lock, 0);
-#endif /* ACE_MT_SAFE */
-
- if (token_manager_ == 0)
- {
- ACE_NEW_RETURN (token_manager_, ACE_Token_Manager, 0);
-
- // Register for destruction with ACE_Object_Manager.
- ACE_Object_Manager::at_exit (token_manager_);
- }
- }
-
- return token_manager_;
-}
-
-void
-ACE_Token_Manager::get_token (ACE_Token_Proxy *proxy,
- const ASYS_TCHAR *token_name)
-{
- ACE_TRACE ("ACE_Token_Manager::get");
- // Hmm. I think this makes sense. We perform our own locking here
- // (see safe_acquire.) We have to make sure that only one thread
- // uses the collection at a time.
-
- ACE_GUARD (ACE_TOKEN_CONST::MUTEX, ace_mon, this->lock_);
-
- TOKEN_NAME name (token_name);
-
- if (collection_.find (name, proxy->token_) == -1)
- // We did not find one in the collection.
- {
- // Make one.
- proxy->token_ = proxy->create_token (token_name);
-
- // Put it in the collection.
- if (collection_.bind (name, proxy->token_) == -1)
- {
- delete proxy->token_;
- proxy->token_ = 0;
- }
- }
-
- if (proxy->token_ != 0)
- proxy->token_->inc_reference ();
-
- // We may be returning proxy->token_ == 0 if new failed, caller must
- // check.
-}
-
-// 0. check_deadlock (TOKEN)
-// 1. if TOKEN->visited (), return 0.
-// 2. mark TOKEN visited.
-// 3. get ALL_OWNERS
-// 4. if CLIENT in ALL_OWNERS, return *DEADLOCK*.
-// 5. for each OWNER in ALL_OWNERS,
-// 6. if OWNER is not waiting for a NEW_TOKEN, continue.
-// 7. else, if check_deadlock (NEW_TOKEN) == 1, return *DEADLOCK*
-// 8. return 0.
-
-int
-ACE_Token_Manager::check_deadlock (ACE_Token_Proxy *proxy)
-{
- ACE_TRACE ("ACE_Token_Manager::check_deadlock");
-
- // Start the recursive deadlock detection algorithm.
- int result = this->check_deadlock (proxy->token_, proxy);
-
- // Whether or not we detect deadlock, we have to unmark all tokens
- // for the next time.
- COLLECTION_ITERATOR iterator (collection_);
- for (COLLECTION_ENTRY *temp = 0;
- iterator.next (temp) != 0;
- iterator.advance ())
- temp->int_id_->visit (0);
-
- return result;
-}
-
-int
-ACE_Token_Manager::check_deadlock (ACE_Tokens *token, ACE_Token_Proxy *proxy)
-{
- ACE_TRACE ("ACE_Token_Manager::check_deadlock");
-
- if (token->visited ())
- return 0;
-
- token->visit (1);
-
- ACE_Tokens::OWNER_STACK owners;
-
- int is_owner = token->owners (owners, proxy->client_id ());
-
- switch (is_owner)
- {
- case -1:
- // Error.
- return -1;
- case 1:
- // The caller is an owner, so we have a deadlock situation.
- if (debug_)
- {
- ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("(%t) Deadlock detected.\n")));
- ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("%s owns %s and is waiting for %s.\n"),
- proxy->client_id (),
- token->name (),
- proxy->token_->name ()));
- }
-
- return 1;
- case 0:
- default:
- // Recurse on each owner.
- while (!owners.is_empty ())
- {
- ACE_TPQ_Entry *e;
- owners.pop (e);
- // If the owner is waiting on another token, recurse.
- ACE_Tokens *twf = this->token_waiting_for (e->client_id ());
- if ((twf != 0) &&
- (this->check_deadlock (twf, proxy) == 1))
- {
- if (debug_)
- {
- ACE_DEBUG ((LM_DEBUG,
- ASYS_TEXT ("%s owns %s and is waiting for %s.\n"),
- e->client_id (),
- token->name (),
- twf->name ()));
- }
- return 1;
- }
- // else, check the next owner.
- }
-
- // We've checked all the owners and found no deadlock.
- return 0;
- }
-}
-
-
-ACE_Tokens *
-ACE_Token_Manager::token_waiting_for (const ASYS_TCHAR *client_id)
-{
- COLLECTION_ITERATOR iterator (collection_);
- for (COLLECTION_ENTRY *temp = 0;
- iterator.next (temp) != 0;
- iterator.advance ())
- {
- if (temp->int_id_->is_waiting_for (client_id))
- return temp->int_id_;
- }
-
- // nothing was found, return NULL.
- return 0;
-}
-
-// Notify the token manager that a token is has been released. If
-// as a result, there is no owner of the token, the token is
-// deleted.
-void
-ACE_Token_Manager::release_token (ACE_Tokens *&token)
-{
- ACE_TRACE ("ACE_Token_Manager::release");
- // again, let's perform our own locking here.
-
- ACE_GUARD (ACE_TOKEN_CONST::MUTEX, ace_mon, this->lock_);
-
- if (token->dec_reference () == 0)
- {
- // No one has the token, so we can delete it and remove it from
- // our collection. First, let's get it from the collection.
- TOKEN_NAME token_name (token->name ());
-
- ACE_Tokens *temp;
-
- if (collection_.unbind (token_name, temp) == -1)
- // we did not find one in the collection
- {
- errno = ENOENT;
- ACE_ERROR ((LM_ERROR, ASYS_TEXT ("Token Manager could not release %s:%d\n"),
- ASYS_MULTIBYTE_STRING (token->name ()), token->type ()));
- // @@ bad
- }
- else
- // we found it
- {
- // sanity pointer comparison. The token referenced by the
- // proxy better be the one we found in the list.
- ACE_ASSERT (token == temp);
- delete token; // or delete temp
- // we set their token to zero. if the calling proxy is
- // still going to be used, it had better check it's token
- // value before calling a method on it!
- token = 0;
- }
- }
- // else
- // someone is still interested in the token, so keep it around.
-}
-
-void
-ACE_Token_Manager::dump (void) const
-{
- ACE_TRACE ("ACE_Token_Manager::dump");
- ACE_DEBUG ((LM_DEBUG, ACE_BEGIN_DUMP, this));
- ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("ACE_Token_Manager::dump:\n")));
- ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("lock_\n")));
- lock_.dump ();
- ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("collection_\n")));
- collection_.dump ();
- ACE_DEBUG ((LM_DEBUG, ACE_END_DUMP));
-}
-
-#if defined (ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION)
-template class ACE_Map_Manager <ACE_Token_Name, ACE_Tokens *, ACE_Null_Mutex>;
-template class ACE_Map_Iterator_Base<ACE_Token_Name, ACE_Tokens *, ACE_Null_Mutex>;
-template class ACE_Map_Iterator<ACE_Token_Name, ACE_Tokens *, ACE_Null_Mutex>;
-template class ACE_Map_Reverse_Iterator<ACE_Token_Name, ACE_Tokens *, ACE_Null_Mutex>;
-template class ACE_Map_Entry <ACE_Token_Name, ACE_Tokens *>;
-#elif defined (ACE_HAS_TEMPLATE_INSTANTIATION_PRAGMA)
-#pragma instantiate ACE_Map_Manager <ACE_Token_Name, ACE_Tokens *, ACE_Null_Mutex>
-#pragma instantiate ACE_Map_Iterator_Base<ACE_Token_Name, ACE_Tokens *, ACE_Null_Mutex>
-#pragma instantiate ACE_Map_Iterator<ACE_Token_Name, ACE_Tokens *, ACE_Null_Mutex>
-#pragma instantiate ACE_Map_Reverse_Iterator<ACE_Token_Name, ACE_Tokens *, ACE_Null_Mutex>
-#pragma instantiate ACE_Map_Entry <ACE_Token_Name, ACE_Tokens *>
-#endif /* ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION */
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