1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1985-2011 AT&T Intellectual Property * 5 * and is licensed under the * 6 * Eclipse Public License, Version 1.0 * 7 * by AT&T Intellectual Property * 8 * * 9 * A copy of the License is available at * 10 * http://www.eclipse.org/org/documents/epl-v10.html * 11 * (with md5 checksum b35adb5213ca9657e911e9befb180842) * 12 * * 13 * Information and Software Systems Research * 14 * AT&T Research * 15 * Florham Park NJ * 16 * * 17 * Glenn Fowler <gsf@research.att.com> * 18 * David Korn <dgk@research.att.com> * 19 * Phong Vo <kpv@research.att.com> * 20 * * 21 ***********************************************************************/ 22 #include "dthdr.h" 23 24 /* Close a dictionary 25 ** 26 ** Written by Kiem-Phong Vo (11/15/2010) 27 */ 28 #if __STD_C 29 int dtclose(Dt_t* dt) 30 #else 31 int dtclose(dt) 32 Dt_t* dt; 33 #endif 34 { 35 int ev, type; 36 Dt_t pdt; 37 Dtdisc_t *disc = dt->disc; 38 39 if(!dt || dt->nview > 0 ) /* can't close if being viewed */ 40 return -1; 41 42 if(disc && disc->eventf) /* announce closing event */ 43 ev = (*disc->eventf)(dt, DT_CLOSE, (Void_t*)1, disc); 44 else ev = 0; 45 if(ev < 0) /* cannot close */ 46 return -1; 47 48 if(dt->view) /* turn off viewing at this point */ 49 dtview(dt,NIL(Dt_t*)); 50 51 type = dt->data->type; /* save before memory is freed */ 52 memcpy(&pdt, dt, sizeof(Dt_t)); 53 54 if(ev == 0 ) /* release all allocated data */ 55 { (void)(*(dt->meth->searchf))(dt,NIL(Void_t*),DT_CLEAR); 56 (void)(*dt->meth->eventf)(dt, DT_CLOSE, (Void_t*)0); 57 /**/DEBUG_ASSERT(!dt->data); 58 } 59 if(!(type&DT_INDATA) ) 60 (void)free(dt); 61 62 if(disc && disc->eventf) /* announce end of closing activities */ 63 (void)(*disc->eventf)(&pdt, DT_ENDCLOSE, (Void_t*)0, disc); 64 65 return 0; 66 } 67