diff options
Diffstat (limited to 'apps/Orbix-Examples/Event_Comm/libsrc/Notifier_i.cpp')
-rw-r--r-- | apps/Orbix-Examples/Event_Comm/libsrc/Notifier_i.cpp | 324 |
1 files changed, 0 insertions, 324 deletions
diff --git a/apps/Orbix-Examples/Event_Comm/libsrc/Notifier_i.cpp b/apps/Orbix-Examples/Event_Comm/libsrc/Notifier_i.cpp deleted file mode 100644 index 59d311c50d7..00000000000 --- a/apps/Orbix-Examples/Event_Comm/libsrc/Notifier_i.cpp +++ /dev/null @@ -1,324 +0,0 @@ - -// $Id$ - -#include "Notification_Receiver_i.h" -#include "Notifier_i.h" - -#if defined (ACE_HAS_ORBIX) && (ACE_HAS_ORBIX != 0) - -class Notification_Receiver_Entry - // = TITLE - // Keeps track of context information associated with - // a <Event_Comm::Notification_Receiver> entry. - // - // = DESCRIPTION - // -{ -public: - Notification_Receiver_Entry (Event_Comm::Notification_Receiver *notification_receiver, - const char *filtering_criteria); - ~Notification_Receiver_Entry (void); - - // = Set/get filtering criteria. - void criteria (const char *criteria); - const char *criteria (void); - - // = Set/get Event_Comm::Notification_Receiver object reference. - Event_Comm::Notification_Receiver *receiver (void); - void receiver (Event_Comm::Notification_Receiver *); - - // = Set/get the compiled regular expression buffer. - const char *regexp (void); - void regexp (char *); - -private: - const char *filtering_criteria_; - // String containing the filtering criteria. - - char *compiled_regexp_; - // Compiled representation of the regular expression (see - // regexpr(3g)). - - Event_Comm::Notification_Receiver *receiver_; - // Object reference for the Event_Comm::Notification_Receiver. -}; - -// = Set/get filtering criteria. - -void -Notification_Receiver_Entry::criteria (const char *criteria) -{ - ACE_OS::free (ACE_MALLOC_T (this->filtering_criteria_)); - this->filtering_criteria_ = ACE_OS::strdup (criteria); -} - -const char * -Notification_Receiver_Entry::criteria (void) -{ - return this->filtering_criteria_; -} - -// = Set/get Event_Comm::Notification_Receiver object reference. - -Event_Comm::Notification_Receiver * -Notification_Receiver_Entry::receiver (void) -{ - return this->receiver_; -} - -void -Notification_Receiver_Entry::receiver (Event_Comm::Notification_Receiver *receiver) -{ - this->receiver_ = receiver; -} - -const char * -Notification_Receiver_Entry::regexp (void) -{ - return this->compiled_regexp_; -} - -void -Notification_Receiver_Entry::regexp (char *regexp) -{ - ACE_OS::free (ACE_MALLOC_T (this->compiled_regexp_)); - this->compiled_regexp_ = regexp; -} - -Notification_Receiver_Entry::Notification_Receiver_Entry (Event_Comm::Notification_Receiver *receiver, - const char *filtering_criteria) - : receiver_ (receiver), - filtering_criteria_ (0), - compiled_regexp_ (0) -{ - char *compile_buffer = 0; - - this->criteria (filtering_criteria); - ACE_ASSERT (this->criteria ()); - - // Check for wildcard case first. - if (ACE_OS::strcmp (filtering_criteria, "") == 0) - compile_buffer = ACE_OS::strdup (""); - else // Compile the regular expression (the 0's cause ACE_OS::compile to allocate space). - compile_buffer = ACE_OS::compile (filtering_criteria, 0, 0); - - // Should throw an exception here! - ACE_ASSERT (compile_buffer != 0); - - this->regexp (compile_buffer); - ACE_ASSERT (this->regexp ()); - - // Increment the reference count since we are keeping a copy of - // this... - this->receiver_->_duplicate (this->receiver_); -} - -Notification_Receiver_Entry::~Notification_Receiver_Entry (void) -{ - ACE_OS::free (this->filtering_criteria_); - ACE_OS::free (this->compiled_regexp_); - // Decrement the object reference count. - CORBA::release (this->receiver_); -} - -Notifier_i::Notifier_i (size_t size) - : map_ (size) -{ -} - -// Add a new receiver to the table, being careful to check for -// duplicate entries. A receiver is considered a duplicate under -// the following circumstances: -// 1. It has the same marker name and the same filtering criteria -// 2. It has the same marker name and its filtering criteria is "" (the wild card). - -void -Notifier_i::subscribe (Event_Comm::Notification_Receiver *receiver_ref, - const char *filtering_criteria, - CORBA::Environment &IT_env) -{ - ACE_DEBUG ((LM_DEBUG, - "in Notifier_i::subscribe for %s with filtering criteria \"%s\"\n", - receiver_ref->_marker (), filtering_criteria)); - ACE_SString key (receiver_ref->_marker ()); - MAP_ITERATOR mi (this->map_); - - // Try to locate an entry using its marker name (which should be - // unique across the system). If we don't find the entry, or if the - // filtering criteria is different that is good news since we - // currently don't allow duplicates... In particular, if @@ Should - // duplicates be allowed? - - for (MAP_ENTRY *me = 0; mi.next (me) != 0; mi.advance ()) - { - Notification_Receiver_Entry *nr_entry = me->int_id_; - - // Check for a duplicate entry. - if (key == me->ext_id_ - && (ACE_OS::strcmp (filtering_criteria, "") == 0 - || ACE_OS::strcmp (filtering_criteria, nr_entry->criteria ()) == 0)) - { - // Inform the caller that the - // Event_Comm::Notification_Receiver * is already being - // used. - - errno = EADDRINUSE; - ACE_ERROR ((LM_ERROR, - "duplicate entry for receiver %s with criteria \"%s\"", - receiver_ref->_marker (), filtering_criteria)); - // Raise exception here??? - return; - } - } - - // If we get this far then we didn't find a duplicate, so add the - // new entry! - Notification_Receiver_Entry *nr_entry = - new Notification_Receiver_Entry (receiver_ref, filtering_criteria); - - if (nr_entry == 0) - { - errno = ENOMEM; - ACE_ERROR ((LM_ERROR, "%p\n", "new failed")); - // Raise exception here... - } - // Try to add new <Notification_Receiver_Entry> to the map. - else if (this->map_.bind (key, nr_entry) == -1) - { - // Prevent memory leaks. - delete nr_entry; - // Raise exception here... - ACE_ERROR ((LM_ERROR, "%p\n", "bind failed")); - } -} - -// Remove a receiver from the table. - -void -Notifier_i::unsubscribe (Event_Comm::Notification_Receiver *receiver_ref, - const char *filtering_criteria, - CORBA::Environment &IT_env) -{ - ACE_DEBUG ((LM_DEBUG, "in Notifier_i::unsubscribe for %s\n", - receiver_ref->_marker ())); - Notification_Receiver_Entry *nr_entry = 0; - ACE_SString key; - MAP_ITERATOR mi (this->map_); - int found = 0; - - // Don't make a copy since we are deleting... - key.rep ((char *) receiver_ref->_marker ()); - - // Locate <Notification_Receiver_Entry> and free up resources. @@ - // Note, we don't properly handle deallocation of KEYS! - - for (MAP_ENTRY *me = 0; mi.next (me) != 0; mi.advance ()) - { - if (key == me->ext_id_ - && (ACE_OS::strcmp (filtering_criteria, "") == 0 - || ACE_OS::strcmp (filtering_criteria, nr_entry->criteria ()) == 0)) - { - ACE_DEBUG ((LM_DEBUG, "removed entry %s with criteria \"%s\"\n", - receiver_ref->_marker (), filtering_criteria)); - found = 1; - // @@ This is a hack, we need a better approach! - if (this->map_.unbind (key, nr_entry) == -1) - ACE_ERROR ((LM_ERROR, "unbind failed for %s\n", - receiver_ref->_marker ())); - else - delete nr_entry; - } - } - - if (found == 0) - ACE_ERROR ((LM_ERROR, "entry %s with criteria \"%s\" not found\n", - receiver_ref->_marker (), filtering_criteria)); -} - -// Disconnect all the receivers, giving them the <reason>. - -void -Notifier_i::send_disconnect (const char *reason, - CORBA::Environment &IT_env) -{ - ACE_DEBUG ((LM_DEBUG, "in Notifier_i::send_disconnect = %s\n", reason)); - - MAP_ITERATOR mi (this->map_); - int count = 0; - - // Notify all the receivers, taking into account the filtering criteria. - - for (MAP_ENTRY *me = 0; mi.next (me) != 0; mi.advance ()) - { - Event_Comm::Notification_Receiver *receiver_ref = me->int_id_->receiver (); - ACE_ASSERT (receiver_ref->_marker () != 0); - ACE_DEBUG ((LM_DEBUG, "disconnecting client %s\n", receiver_ref->_marker ())); - TRY { - receiver_ref->disconnect (reason, IT_X); - } - CATCHANY { - cerr << "Unexpected exception " << IT_X << endl; - } - ENDTRY; - delete me->int_id_; - delete me->ext_id_.rep (); - count++; - } - - this->map_.close (); - if (count == 1) - ACE_DEBUG ((LM_DEBUG, "there was 1 receiver\n")); - else - ACE_DEBUG ((LM_DEBUG, "there were %d receivers\n", count)); -} - -// Notify all receivers whose filtering criteria match the event. - -void -Notifier_i::send_notification (const Event_Comm::Notification ¬ification, - CORBA::Environment &IT_env) -{ - ACE_DEBUG ((LM_DEBUG, "in Notifier_i::send_notification = %s\n", - notification.tag_)); - MAP_ITERATOR mi (this->map_); - int count = 0; - - // Notify all the receivers. - // @@ Later on we need to consider the filtering_criteria! - - for (MAP_ENTRY *me = 0; mi.next (me) != 0; mi.advance ()) - { - Event_Comm::Notification_Receiver *receiver_ref = me->int_id_->receiver (); - ACE_ASSERT (receiver_ref->_marker () != 0); - const char *regexp = me->int_id_->regexp (); - const char *criteria = me->int_id_->criteria (); - ACE_ASSERT (regexp); - ACE_ASSERT (criteria); - - // Do a regular expression comparison to determine matching. - if (ACE_OS::strcmp ("", criteria) == 0 // Everything matches the wildcard. -// || ACE_OS::strcmp (notification.tag_, regexp) == 0) - || ACE_OS::step (notification.tag_, regexp) != 0) - { - ACE_DEBUG ((LM_DEBUG, "string %s matched regexp \"%s\" for client %s\n", - notification.tag_, me->int_id_->criteria (), - receiver_ref->_marker ())); - TRY { - receiver_ref->receive_notification (notification, IT_X); - } - CATCHANY { - cerr << "Unexpected exception " << IT_X << endl; - continue; - } - ENDTRY; - count++; - } - } - - if (count == 1) - ACE_DEBUG ((LM_DEBUG, "there was 1 receiver\n")); - else - ACE_DEBUG ((LM_DEBUG, "there were %d receivers\n", count)); -} - -#endif /* ACE_HAS_ORBIX */ |