2001-09-29 00:14:13 +04:00
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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1998-11-05 11:57:24 +03:00
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*
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2001-09-29 00:14:13 +04:00
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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1998-11-05 11:57:24 +03:00
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*
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2001-09-29 00:14:13 +04:00
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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1998-11-05 11:57:24 +03:00
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*
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1999-11-06 05:47:15 +03:00
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* The Original Code is mozilla.org code.
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*
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2001-09-29 00:14:13 +04:00
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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1999-11-06 05:47:15 +03:00
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*
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2001-09-29 00:14:13 +04:00
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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1998-11-05 11:57:24 +03:00
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/*
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* JavaScript Debugging support - Atom support
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*/
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#include "jsd.h"
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/* #define TEST_ATOMS 1 */
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#ifdef TEST_ATOMS
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static void
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_testAtoms(JSDContext*jsdc)
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{
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JSDAtom* atom0 = jsd_AddAtom(jsdc, "foo");
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JSDAtom* atom1 = jsd_AddAtom(jsdc, "foo");
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JSDAtom* atom2 = jsd_AddAtom(jsdc, "bar");
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JSDAtom* atom3 = jsd_CloneAtom(jsdc, atom1);
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JSDAtom* atom4 = jsd_CloneAtom(jsdc, atom2);
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const char* c0 = JSD_ATOM_TO_STRING(atom0);
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const char* c1 = JSD_ATOM_TO_STRING(atom1);
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const char* c2 = JSD_ATOM_TO_STRING(atom2);
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const char* c3 = JSD_ATOM_TO_STRING(atom3);
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const char* c4 = JSD_ATOM_TO_STRING(atom4);
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jsd_DropAtom(jsdc, atom0);
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jsd_DropAtom(jsdc, atom1);
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jsd_DropAtom(jsdc, atom2);
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jsd_DropAtom(jsdc, atom3);
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jsd_DropAtom(jsdc, atom4);
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}
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#endif
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JS_STATIC_DLL_CALLBACK(intN)
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_atom_smasher(JSHashEntry *he, intN i, void *arg)
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{
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JS_ASSERT(he);
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JS_ASSERT(he->value);
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JS_ASSERT(((JSDAtom*)(he->value))->str);
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free(((JSDAtom*)(he->value))->str);
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free(he->value);
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he->value = NULL;
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he->key = NULL;
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return HT_ENUMERATE_NEXT;
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}
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JS_STATIC_DLL_CALLBACK(intN)
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_compareAtomKeys(const void *v1, const void *v2)
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{
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return 0 == strcmp((const char*)v1, (const char*)v2);
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}
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JS_STATIC_DLL_CALLBACK(intN)
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_compareAtoms(const void *v1, const void *v2)
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{
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return 0 == strcmp(((JSDAtom*)v1)->str, ((JSDAtom*)v2)->str);
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}
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JSBool
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jsd_CreateAtomTable(JSDContext* jsdc)
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{
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jsdc->atoms = JS_NewHashTable(256, JS_HashString,
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_compareAtomKeys, _compareAtoms,
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NULL, NULL);
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#ifdef TEST_ATOMS
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_testAtoms(jsdc);
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#endif
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return (JSBool) jsdc->atoms;
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}
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void
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jsd_DestroyAtomTable(JSDContext* jsdc)
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{
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if( jsdc->atoms )
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{
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JS_HashTableEnumerateEntries(jsdc->atoms, _atom_smasher, NULL);
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JS_HashTableDestroy(jsdc->atoms);
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jsdc->atoms = NULL;
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}
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}
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JSDAtom*
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jsd_AddAtom(JSDContext* jsdc, const char* str)
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{
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JSDAtom* atom;
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if(!str)
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{
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JS_ASSERT(0);
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return NULL;
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}
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JSD_LOCK_ATOMS(jsdc);
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atom = (JSDAtom*) JS_HashTableLookup(jsdc->atoms, str);
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if( atom )
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atom->refcount++;
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else
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{
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atom = (JSDAtom*) malloc(sizeof(JSDAtom));
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if( atom )
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{
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atom->str = strdup(str);
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atom->refcount = 1;
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if(!JS_HashTableAdd(jsdc->atoms, atom->str, atom))
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{
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free(atom->str);
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free(atom);
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atom = NULL;
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}
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}
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}
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JSD_UNLOCK_ATOMS(jsdc);
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return atom;
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}
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JSDAtom*
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jsd_CloneAtom(JSDContext* jsdc, JSDAtom* atom)
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{
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JSD_LOCK_ATOMS(jsdc);
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atom->refcount++;
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JSD_UNLOCK_ATOMS(jsdc);
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return atom;
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}
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void
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jsd_DropAtom(JSDContext* jsdc, JSDAtom* atom)
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{
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JSD_LOCK_ATOMS(jsdc);
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if(! --atom->refcount)
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{
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JS_HashTableRemove(jsdc->atoms, atom->str);
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free(atom->str);
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free(atom);
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}
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JSD_UNLOCK_ATOMS(jsdc);
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}
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