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Annotation of coherent/g/usr/lib/uucp/tay104/uuconf/free.c, revision 1.1.1.1

1.1       root        1: /* free.c
                      2:    Free a buffer from within a memory block.
                      3: 
                      4:    Copyright (C) 1992 Ian Lance Taylor
                      5: 
                      6:    This file is part of the Taylor UUCP uuconf library.
                      7: 
                      8:    This library is free software; you can redistribute it and/or
                      9:    modify it under the terms of the GNU Library General Public License
                     10:    as published by the Free Software Foundation; either version 2 of
                     11:    the License, or (at your option) any later version.
                     12: 
                     13:    This library is distributed in the hope that it will be useful, but
                     14:    WITHOUT ANY WARRANTY; without even the implied warranty of
                     15:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
                     16:    Library General Public License for more details.
                     17: 
                     18:    You should have received a copy of the GNU Library General Public
                     19:    License along with this library; if not, write to the Free Software
                     20:    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
                     21: 
                     22:    The author of the program may be contacted at [email protected] or
                     23:    c/o Infinity Development Systems, P.O. Box 520, Waltham, MA 02254.
                     24:    */
                     25: 
                     26: #include "uucnfi.h"
                     27: 
                     28: #if USE_RCS_ID
                     29: const char _uuconf_free_rcsid[] = "$Id: free.c,v 1.1 93/07/30 08:07:11 bin Exp Locker: bin $";
                     30: #endif
                     31: 
                     32: #include "alloc.h"
                     33: 
                     34: /* Free memory allocated by uuconf_malloc.  If the memory block is
                     35:    NULL, this just calls free; this is convenient for a number of
                     36:    routines.  Otherwise, this will only do something if this was the
                     37:    last buffer allocated for one of the memory blocks in the list; in
                     38:    other cases, the memory is lost until the entire memory block is
                     39:    freed.  */
                     40: 
                     41: #if UUCONF_ANSI_C
                     42: void
                     43: #endif
                     44: uuconf_free (pblock, pbuf)
                     45:      pointer pblock;
                     46:      pointer pbuf;
                     47: {
                     48:   struct sblock *q = (struct sblock *) pblock;
                     49: 
                     50:   if (pbuf == NULL)
                     51:     return;
                     52: 
                     53:   if (q == NULL)
                     54:     {
                     55:       free (pbuf);
                     56:       return;
                     57:     }
                     58: 
                     59:   for (; q != NULL; q = q->qnext)
                     60:     {
                     61:       if (q->plast == pbuf)
                     62:        {
                     63:          q->ifree = (char *) pbuf - q->u.ab;
                     64:          /* We could reset q->plast here, but it doesn't matter.  */
                     65:          return;
                     66:        }
                     67:     }
                     68: }

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