diff options
Diffstat (limited to 'trunk/TAO/TAO_IDL/util/utl_list.cpp')
| -rw-r--r-- | trunk/TAO/TAO_IDL/util/utl_list.cpp | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/trunk/TAO/TAO_IDL/util/utl_list.cpp b/trunk/TAO/TAO_IDL/util/utl_list.cpp new file mode 100644 index 00000000000..a52dd4bde8f --- /dev/null +++ b/trunk/TAO/TAO_IDL/util/utl_list.cpp @@ -0,0 +1,198 @@ +// $Id$ + +/* + +COPYRIGHT + +Copyright 1992, 1993, 1994 Sun Microsystems, Inc. Printed in the United +States of America. All Rights Reserved. + +This product is protected by copyright and distributed under the following +license restricting its use. + +The Interface Definition Language Compiler Front End (CFE) is made +available for your use provided that you include this license and copyright +notice on all media and documentation and the software program in which +this product is incorporated in whole or part. You may copy and extend +functionality (but may not remove functionality) of the Interface +Definition Language CFE without charge, but you are not authorized to +license or distribute it to anyone else except as part of a product or +program developed by you or with the express written consent of Sun +Microsystems, Inc. ("Sun"). + +The names of Sun Microsystems, Inc. and any of its subsidiaries or +affiliates may not be used in advertising or publicity pertaining to +distribution of Interface Definition Language CFE as permitted herein. + +This license is effective until terminated by Sun for failure to comply +with this license. Upon termination, you shall destroy or return all code +and documentation for the Interface Definition Language CFE. + +INTERFACE DEFINITION LANGUAGE CFE IS PROVIDED AS IS WITH NO WARRANTIES OF +ANY KIND INCLUDING THE WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS +FOR A PARTICULAR PURPOSE, NONINFRINGEMENT, OR ARISING FROM A COURSE OF +DEALING, USAGE OR TRADE PRACTICE. + +INTERFACE DEFINITION LANGUAGE CFE IS PROVIDED WITH NO SUPPORT AND WITHOUT +ANY OBLIGATION ON THE PART OF Sun OR ANY OF ITS SUBSIDIARIES OR AFFILIATES +TO ASSIST IN ITS USE, CORRECTION, MODIFICATION OR ENHANCEMENT. + +SUN OR ANY OF ITS SUBSIDIARIES OR AFFILIATES SHALL HAVE NO LIABILITY WITH +RESPECT TO THE INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY +INTERFACE DEFINITION LANGUAGE CFE OR ANY PART THEREOF. + +IN NO EVENT WILL SUN OR ANY OF ITS SUBSIDIARIES OR AFFILIATES BE LIABLE FOR +ANY LOST REVENUE OR PROFITS OR OTHER SPECIAL, INDIRECT AND CONSEQUENTIAL +DAMAGES, EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. + +Use, duplication, or disclosure by the government is subject to +restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in +Technical Data and Computer Software clause at DFARS 252.227-7013 and FAR +52.227-19. + +Sun, Sun Microsystems and the Sun logo are trademarks or registered +trademarks of Sun Microsystems, Inc. + +SunSoft, Inc. +2550 Garcia Avenue +Mountain View, California 94043 + +NOTE: + +SunOS, SunSoft, Sun, Solaris, Sun Microsystems or the Sun logo are +trademarks or registered trademarks of Sun Microsystems, Inc. + +*/ + +// Implementation of generic single-linked list. + +// NOTE: This list class only works correctly because we use single public +// inheritance, as opposed to multiple inheritance or public virtual. +// It relies on a type-unsafe cast from UTL_List to subclasses, which +// will cease to operate correctly if you use either multiple or +// public virtual inheritance. + +#include "utl_list.h" +#include "ace/OS_Memory.h" + +ACE_RCSID (util, + utl_list, + "$Id$") + +UTL_List::UTL_List (UTL_List *c) + : pd_cdr_data (c) +{ +} + +UTL_List::~UTL_List (void) +{ +} + +// Compute list length. +long +UTL_List::list_length (long n) +{ + if (this->pd_cdr_data == 0) + { + return n; + } + else + { + return this->pd_cdr_data->list_length (n + 1); + } +} + +// Smash last cdr with l. +void +UTL_List::nconc (UTL_List *l) +{ + if (this->pd_cdr_data == 0) + { + this->pd_cdr_data = l; + } + else + { + this->pd_cdr_data->nconc (l); + } +} + +// Override this operation to copy lists of other types. +UTL_List * +UTL_List::copy (void) +{ + UTL_List *retval = 0; + + if (this->pd_cdr_data == 0) + { + ACE_NEW_RETURN (retval, + UTL_List (0), + 0); + } + else + { + ACE_NEW_RETURN (retval, + UTL_List (this->pd_cdr_data->copy ()), + 0); + } + + return retval; +} + +// Get next list. +UTL_List * +UTL_List::tail (void) +{ + return pd_cdr_data; +} + +// Set next list. +void +UTL_List::set_tail (UTL_List *l) +{ + this->pd_cdr_data->destroy (); + delete this->pd_cdr_data; + this->pd_cdr_data = l; +} + +// Compute list length. +long +UTL_List::length (void) +{ + return list_length (1); +} + +void +UTL_List::destroy (void) +{ + if (this->pd_cdr_data != 0) + { + this->pd_cdr_data->destroy (); + delete this->pd_cdr_data; + this->pd_cdr_data = 0; + } +} + +// UTL_List active iterator. + +UTL_ListActiveIterator::UTL_ListActiveIterator (UTL_List *s) + : source (s) +{ +} + +// Is iterator done? +bool +UTL_ListActiveIterator::is_done (void) +{ + return (this->source == 0) ? true : false; +} + +// Advance to next item. +void +UTL_ListActiveIterator::next (void) +{ + if (this->source != 0) + { + this->source = this->source->tail (); + } +} + |