mirror of
https://github.com/mozilla/gecko-dev.git
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36000fce8e
--HG-- rename : security/coreconf/AIX.mk => security/nss/coreconf/AIX.mk rename : security/coreconf/Android.mk => security/nss/coreconf/Android.mk rename : security/coreconf/BSD_OS.mk => security/nss/coreconf/BSD_OS.mk rename : security/coreconf/BeOS.mk => security/nss/coreconf/BeOS.mk rename : security/coreconf/Darwin.mk => security/nss/coreconf/Darwin.mk rename : security/coreconf/FreeBSD.mk => security/nss/coreconf/FreeBSD.mk rename : security/coreconf/HP-UX.mk => security/nss/coreconf/HP-UX.mk rename : security/coreconf/HP-UXA.09.03.mk => security/nss/coreconf/HP-UXA.09.03.mk rename : security/coreconf/HP-UXA.09.07.mk => security/nss/coreconf/HP-UXA.09.07.mk rename : security/coreconf/HP-UXA.09.mk => security/nss/coreconf/HP-UXA.09.mk rename : security/coreconf/HP-UXB.10.01.mk => security/nss/coreconf/HP-UXB.10.01.mk rename : security/coreconf/HP-UXB.10.10.mk => security/nss/coreconf/HP-UXB.10.10.mk rename : security/coreconf/HP-UXB.10.20.mk => security/nss/coreconf/HP-UXB.10.20.mk rename : security/coreconf/HP-UXB.10.30.mk => security/nss/coreconf/HP-UXB.10.30.mk rename : security/coreconf/HP-UXB.10.mk => security/nss/coreconf/HP-UXB.10.mk rename : security/coreconf/HP-UXB.11.00.mk => security/nss/coreconf/HP-UXB.11.00.mk rename : security/coreconf/HP-UXB.11.11.mk => security/nss/coreconf/HP-UXB.11.11.mk rename : security/coreconf/HP-UXB.11.20.mk => security/nss/coreconf/HP-UXB.11.20.mk rename : security/coreconf/HP-UXB.11.22.mk => security/nss/coreconf/HP-UXB.11.22.mk rename : security/coreconf/HP-UXB.11.23.mk => security/nss/coreconf/HP-UXB.11.23.mk rename : security/coreconf/HP-UXB.11.mk => security/nss/coreconf/HP-UXB.11.mk rename : security/coreconf/IRIX.mk => security/nss/coreconf/IRIX.mk rename : security/coreconf/IRIX5.2.mk => security/nss/coreconf/IRIX5.2.mk rename : security/coreconf/IRIX5.3.mk => security/nss/coreconf/IRIX5.3.mk rename : security/coreconf/IRIX5.mk => security/nss/coreconf/IRIX5.mk rename : security/coreconf/IRIX6.2.mk => security/nss/coreconf/IRIX6.2.mk rename : security/coreconf/IRIX6.3.mk => security/nss/coreconf/IRIX6.3.mk rename : security/coreconf/IRIX6.5.mk => security/nss/coreconf/IRIX6.5.mk rename : security/coreconf/IRIX6.mk => security/nss/coreconf/IRIX6.mk rename : security/coreconf/Linux.mk => security/nss/coreconf/Linux.mk rename : security/coreconf/Makefile => security/nss/coreconf/Makefile rename : security/coreconf/NCR3.0.mk => security/nss/coreconf/NCR3.0.mk rename : security/coreconf/NEC4.2.mk => security/nss/coreconf/NEC4.2.mk rename : security/coreconf/NetBSD.mk => security/nss/coreconf/NetBSD.mk rename : security/coreconf/OS2.mk => security/nss/coreconf/OS2.mk rename : security/coreconf/OSF1.mk => security/nss/coreconf/OSF1.mk rename : security/coreconf/OSF1V3.0.mk => security/nss/coreconf/OSF1V2.0.mk rename : security/coreconf/OSF1V3.0.mk => security/nss/coreconf/OSF1V3.0.mk rename : security/coreconf/OSF1V3.2.mk => security/nss/coreconf/OSF1V3.2.mk rename : security/coreconf/OSF1V4.0.mk => security/nss/coreconf/OSF1V4.0.mk rename : security/coreconf/OSF1V4.0B.mk => security/nss/coreconf/OSF1V4.0B.mk rename : security/coreconf/OSF1V4.0D.mk => security/nss/coreconf/OSF1V4.0D.mk rename : security/coreconf/OSF1V5.0.mk => security/nss/coreconf/OSF1V5.0.mk rename : security/coreconf/OSF1V5.1.mk => security/nss/coreconf/OSF1V5.1.mk rename : security/coreconf/OpenBSD.mk => security/nss/coreconf/OpenBSD.mk rename : security/coreconf/OpenUNIX.mk => security/nss/coreconf/OpenUNIX.mk rename : security/coreconf/QNX.mk => security/nss/coreconf/QNX.mk rename : security/coreconf/README => security/nss/coreconf/README rename : security/coreconf/RISCOS.mk => security/nss/coreconf/RISCOS.mk rename : security/coreconf/ReliantUNIX.mk => security/nss/coreconf/ReliantUNIX.mk rename : security/coreconf/ReliantUNIX5.4.mk => security/nss/coreconf/ReliantUNIX5.4.mk rename : security/coreconf/SCOOS5.0.mk => security/nss/coreconf/SCOOS5.0.mk rename : security/coreconf/SCO_SV3.2.mk => security/nss/coreconf/SCO_SV3.2.mk rename : security/coreconf/SunOS4.1.3_U1.mk => security/nss/coreconf/SunOS4.1.3_U1.mk rename : security/coreconf/UNIX.mk => security/nss/coreconf/UNIX.mk rename : security/coreconf/UNIXWARE2.1.mk => security/nss/coreconf/UNIXWARE2.1.mk rename : security/coreconf/WIN95.mk => security/nss/coreconf/WIN95.mk rename : security/coreconf/WINNT.mk => security/nss/coreconf/WINNT.mk rename : security/coreconf/arch.mk => security/nss/coreconf/arch.mk rename : security/coreconf/command.mk => security/nss/coreconf/command.mk rename : security/coreconf/coreconf.pl => security/nss/coreconf/coreconf.pl rename : security/coreconf/cpdist.pl => security/nss/coreconf/cpdist.pl rename : security/coreconf/headers.mk => security/nss/coreconf/headers.mk rename : security/coreconf/import.pl => security/nss/coreconf/import.pl rename : security/coreconf/jdk.mk => security/nss/coreconf/jdk.mk rename : security/coreconf/jniregen.pl => security/nss/coreconf/jniregen.pl rename : security/coreconf/location.mk => security/nss/coreconf/location.mk rename : security/coreconf/mkdepend/Makefile => security/nss/coreconf/mkdepend/Makefile rename : security/coreconf/mkdepend/cppsetup.c => security/nss/coreconf/mkdepend/cppsetup.c rename : security/coreconf/mkdepend/def.h => security/nss/coreconf/mkdepend/def.h rename : security/coreconf/mkdepend/ifparser.c => security/nss/coreconf/mkdepend/ifparser.c rename : security/coreconf/mkdepend/ifparser.h => security/nss/coreconf/mkdepend/ifparser.h rename : security/coreconf/mkdepend/imakemdep.h => security/nss/coreconf/mkdepend/imakemdep.h rename : security/coreconf/mkdepend/include.c => security/nss/coreconf/mkdepend/include.c rename : security/coreconf/mkdepend/main.c => security/nss/coreconf/mkdepend/main.c rename : security/coreconf/mkdepend/mkdepend.man => security/nss/coreconf/mkdepend/mkdepend.man rename : security/coreconf/mkdepend/parse.c => security/nss/coreconf/mkdepend/parse.c rename : security/coreconf/mkdepend/pr.c => security/nss/coreconf/mkdepend/pr.c rename : security/coreconf/module.mk => security/nss/coreconf/module.mk rename : security/coreconf/nsinstall/Makefile => security/nss/coreconf/nsinstall/Makefile rename : security/coreconf/nsinstall/nsinstall.c => security/nss/coreconf/nsinstall/nsinstall.c rename : security/coreconf/nsinstall/pathsub.c => security/nss/coreconf/nsinstall/pathsub.c rename : security/coreconf/nsinstall/pathsub.h => security/nss/coreconf/nsinstall/pathsub.h rename : security/coreconf/nsinstall/sunos4.h => security/nss/coreconf/nsinstall/sunos4.h rename : security/coreconf/outofdate.pl => security/nss/coreconf/outofdate.pl rename : security/coreconf/prefix.mk => security/nss/coreconf/prefix.mk rename : security/coreconf/release.pl => security/nss/coreconf/release.pl rename : security/coreconf/rules.mk => security/nss/coreconf/rules.mk rename : security/coreconf/ruleset.mk => security/nss/coreconf/ruleset.mk rename : security/coreconf/source.mk => security/nss/coreconf/source.mk rename : security/coreconf/suffix.mk => security/nss/coreconf/suffix.mk rename : security/coreconf/tree.mk => security/nss/coreconf/tree.mk rename : security/coreconf/version.mk => security/nss/coreconf/version.mk rename : security/coreconf/version.pl => security/nss/coreconf/version.pl rename : security/dbm/config/config.mk => security/nss/lib/dbm/config/config.mk rename : dbm/include/cdefs.h => security/nss/lib/dbm/include/cdefs.h rename : dbm/include/extern.h => security/nss/lib/dbm/include/extern.h rename : dbm/include/hash.h => security/nss/lib/dbm/include/hash.h rename : dbm/include/search.h => security/nss/lib/dbm/include/hsearch.h rename : dbm/include/mcom_db.h => security/nss/lib/dbm/include/mcom_db.h rename : dbm/include/mpool.h => security/nss/lib/dbm/include/mpool.h rename : dbm/include/ncompat.h => security/nss/lib/dbm/include/ncompat.h rename : dbm/include/page.h => security/nss/lib/dbm/include/page.h rename : dbm/include/queue.h => security/nss/lib/dbm/include/queue.h rename : dbm/include/search.h => security/nss/lib/dbm/include/search.h rename : dbm/include/winfile.h => security/nss/lib/dbm/include/winfile.h rename : dbm/src/db.c => security/nss/lib/dbm/src/db.c rename : security/dbm/src/dirent.c => security/nss/lib/dbm/src/dirent.c rename : security/dbm/src/dirent.h => security/nss/lib/dbm/src/dirent.h rename : dbm/src/h_bigkey.c => security/nss/lib/dbm/src/h_bigkey.c rename : dbm/src/h_func.c => security/nss/lib/dbm/src/h_func.c rename : dbm/src/h_log2.c => security/nss/lib/dbm/src/h_log2.c rename : dbm/src/h_page.c => security/nss/lib/dbm/src/h_page.c rename : dbm/src/hash.c => security/nss/lib/dbm/src/hash.c rename : dbm/src/hash_buf.c => security/nss/lib/dbm/src/hash_buf.c rename : dbm/src/memmove.c => security/nss/lib/dbm/src/memmove.c rename : dbm/src/mktemp.c => security/nss/lib/dbm/src/mktemp.c rename : dbm/src/snprintf.c => security/nss/lib/dbm/src/snprintf.c rename : dbm/src/strerror.c => security/nss/lib/dbm/src/strerror.c rename : dbm/tests/dbmtest.pkg => security/nss/lib/dbm/tests/dbmtest.pkg rename : dbm/tests/lots.c => security/nss/lib/dbm/tests/lots.c extra : rebase_source : 119dad5f824e8e760182047fd32e2a0d0f944172 extra : amend_source : 98e24aa51f9044d9091a26f013b643925e8f9dcf
406 lines
8.7 KiB
C
406 lines
8.7 KiB
C
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifdef DEBUG
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static const char CVS_ID[] = "@(#) $RCSfile$ $Revision$ $Date$";
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#endif /* DEBUG */
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/*
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* list.c
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*
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* This contains the implementation of NSS's thread-safe linked list.
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*/
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#ifndef BASE_H
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#include "base.h"
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#endif /* BASE_H */
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struct nssListElementStr {
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PRCList link;
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void *data;
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};
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typedef struct nssListElementStr nssListElement;
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struct nssListStr {
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NSSArena *arena;
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PZLock *lock;
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nssListElement *head;
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PRUint32 count;
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nssListCompareFunc compareFunc;
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nssListSortFunc sortFunc;
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PRBool i_alloced_arena;
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};
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struct nssListIteratorStr {
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PZLock *lock;
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nssList *list;
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nssListElement *current;
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};
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#define NSSLIST_LOCK_IF(list) \
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if ((list)->lock) PZ_Lock((list)->lock)
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#define NSSLIST_UNLOCK_IF(list) \
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if ((list)->lock) PZ_Unlock((list)->lock)
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static PRBool
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pointer_compare(void *a, void *b)
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{
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return (PRBool)(a == b);
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}
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static nssListElement *
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nsslist_get_matching_element(nssList *list, void *data)
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{
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PRCList *link;
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nssListElement *node;
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node = list->head;
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if (!node) {
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return NULL;
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}
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link = &node->link;
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while (node) {
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/* using a callback slows things down when it's just compare ... */
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if (list->compareFunc(node->data, data)) {
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break;
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}
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link = &node->link;
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if (link == PR_LIST_TAIL(&list->head->link)) {
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node = NULL;
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break;
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}
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node = (nssListElement *)PR_NEXT_LINK(&node->link);
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}
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return node;
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}
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NSS_IMPLEMENT nssList *
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nssList_Create
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(
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NSSArena *arenaOpt,
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PRBool threadSafe
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)
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{
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NSSArena *arena;
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nssList *list;
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PRBool i_alloced;
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if (arenaOpt) {
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arena = arenaOpt;
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i_alloced = PR_FALSE;
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} else {
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arena = nssArena_Create();
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i_alloced = PR_TRUE;
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}
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if (!arena) {
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return (nssList *)NULL;
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}
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list = nss_ZNEW(arena, nssList);
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if (!list) {
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if (!arenaOpt) {
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NSSArena_Destroy(arena);
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}
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return (nssList *)NULL;
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}
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if (threadSafe) {
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list->lock = PZ_NewLock(nssILockOther);
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if (!list->lock) {
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if (arenaOpt) {
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nss_ZFreeIf(list);
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} else {
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NSSArena_Destroy(arena);
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}
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return (nssList *)NULL;
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}
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}
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list->arena = arena;
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list->i_alloced_arena = i_alloced;
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list->compareFunc = pointer_compare;
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return list;
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}
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NSS_IMPLEMENT PRStatus
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nssList_Destroy(nssList *list)
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{
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if (!list->i_alloced_arena) {
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nssList_Clear(list, NULL);
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}
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if (list->lock) {
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(void)PZ_DestroyLock(list->lock);
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}
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if (list->i_alloced_arena) {
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NSSArena_Destroy(list->arena);
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list = NULL;
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}
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nss_ZFreeIf(list);
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return PR_SUCCESS;
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}
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NSS_IMPLEMENT void
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nssList_SetCompareFunction(nssList *list, nssListCompareFunc compareFunc)
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{
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list->compareFunc = compareFunc;
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}
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NSS_IMPLEMENT void
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nssList_SetSortFunction(nssList *list, nssListSortFunc sortFunc)
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{
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/* XXX if list already has elements, sort them */
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list->sortFunc = sortFunc;
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}
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NSS_IMPLEMENT nssListCompareFunc
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nssList_GetCompareFunction(nssList *list)
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{
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return list->compareFunc;
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}
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NSS_IMPLEMENT void
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nssList_Clear(nssList *list, nssListElementDestructorFunc destructor)
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{
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PRCList *link;
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nssListElement *node, *tmp;
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NSSLIST_LOCK_IF(list);
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node = list->head;
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list->head = NULL;
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while (node && list->count > 0) {
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if (destructor) (*destructor)(node->data);
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link = &node->link;
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tmp = (nssListElement *)PR_NEXT_LINK(link);
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PR_REMOVE_LINK(link);
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nss_ZFreeIf(node);
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node = tmp;
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--list->count;
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}
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NSSLIST_UNLOCK_IF(list);
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}
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static PRStatus
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nsslist_add_element(nssList *list, void *data)
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{
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nssListElement *node = nss_ZNEW(list->arena, nssListElement);
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if (!node) {
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return PR_FAILURE;
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}
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PR_INIT_CLIST(&node->link);
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node->data = data;
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if (list->head) {
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if (list->sortFunc) {
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PRCList *link;
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nssListElement *currNode;
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currNode = list->head;
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/* insert in ordered list */
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while (currNode) {
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link = &currNode->link;
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if (list->sortFunc(data, currNode->data) <= 0) {
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/* new element goes before current node */
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PR_INSERT_BEFORE(&node->link, link);
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/* reset head if this is first */
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if (currNode == list->head) list->head = node;
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break;
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}
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if (link == PR_LIST_TAIL(&list->head->link)) {
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/* reached end of list, append */
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PR_INSERT_AFTER(&node->link, link);
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break;
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}
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currNode = (nssListElement *)PR_NEXT_LINK(&currNode->link);
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}
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} else {
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/* not sorting */
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PR_APPEND_LINK(&node->link, &list->head->link);
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}
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} else {
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list->head = node;
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}
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++list->count;
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return PR_SUCCESS;
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}
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NSS_IMPLEMENT PRStatus
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nssList_Add(nssList *list, void *data)
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{
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PRStatus nssrv;
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NSSLIST_LOCK_IF(list);
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nssrv = nsslist_add_element(list, data);
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NSSLIST_UNLOCK_IF(list);
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return PR_SUCCESS;
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}
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NSS_IMPLEMENT PRStatus
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nssList_AddUnique(nssList *list, void *data)
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{
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PRStatus nssrv;
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nssListElement *node;
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NSSLIST_LOCK_IF(list);
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node = nsslist_get_matching_element(list, data);
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if (node) {
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/* already in, finish */
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NSSLIST_UNLOCK_IF(list);
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return PR_SUCCESS;
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}
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nssrv = nsslist_add_element(list, data);
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NSSLIST_UNLOCK_IF(list);
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return nssrv;
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}
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NSS_IMPLEMENT PRStatus
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nssList_Remove(nssList *list, void *data)
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{
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nssListElement *node;
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NSSLIST_LOCK_IF(list);
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node = nsslist_get_matching_element(list, data);
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if (node) {
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if (node == list->head) {
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list->head = (nssListElement *)PR_NEXT_LINK(&node->link);
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}
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PR_REMOVE_LINK(&node->link);
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nss_ZFreeIf(node);
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if (--list->count == 0) {
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list->head = NULL;
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}
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}
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NSSLIST_UNLOCK_IF(list);
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return PR_SUCCESS;
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}
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NSS_IMPLEMENT void *
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nssList_Get(nssList *list, void *data)
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{
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nssListElement *node;
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NSSLIST_LOCK_IF(list);
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node = nsslist_get_matching_element(list, data);
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NSSLIST_UNLOCK_IF(list);
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return (node) ? node->data : NULL;
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}
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NSS_IMPLEMENT PRUint32
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nssList_Count(nssList *list)
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{
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return list->count;
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}
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NSS_IMPLEMENT PRStatus
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nssList_GetArray(nssList *list, void **rvArray, PRUint32 maxElements)
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{
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nssListElement *node;
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PRUint32 i = 0;
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PR_ASSERT(maxElements > 0);
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node = list->head;
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if (!node) {
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return PR_SUCCESS;
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}
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NSSLIST_LOCK_IF(list);
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while (node) {
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rvArray[i++] = node->data;
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if (i == maxElements) break;
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node = (nssListElement *)PR_NEXT_LINK(&node->link);
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if (node == list->head) {
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break;
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}
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}
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NSSLIST_UNLOCK_IF(list);
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return PR_SUCCESS;
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}
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NSS_IMPLEMENT nssList *
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nssList_Clone(nssList *list)
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{
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nssList *rvList;
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nssListElement *node;
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rvList = nssList_Create(NULL, (list->lock != NULL));
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if (!rvList) {
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return NULL;
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}
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NSSLIST_LOCK_IF(list);
|
|
if (list->count > 0) {
|
|
node = list->head;
|
|
while (PR_TRUE) {
|
|
nssList_Add(rvList, node->data);
|
|
node = (nssListElement *)PR_NEXT_LINK(&node->link);
|
|
if (node == list->head) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
NSSLIST_UNLOCK_IF(list);
|
|
return rvList;
|
|
}
|
|
|
|
NSS_IMPLEMENT nssListIterator *
|
|
nssList_CreateIterator(nssList *list)
|
|
{
|
|
nssListIterator *rvIterator;
|
|
rvIterator = nss_ZNEW(NULL, nssListIterator);
|
|
if (!rvIterator) {
|
|
return NULL;
|
|
}
|
|
rvIterator->list = nssList_Clone(list);
|
|
if (!rvIterator->list) {
|
|
nss_ZFreeIf(rvIterator);
|
|
return NULL;
|
|
}
|
|
rvIterator->current = rvIterator->list->head;
|
|
if (list->lock) {
|
|
rvIterator->lock = PZ_NewLock(nssILockOther);
|
|
if (!rvIterator->lock) {
|
|
nssList_Destroy(rvIterator->list);
|
|
nss_ZFreeIf(rvIterator);
|
|
rvIterator = NULL;
|
|
}
|
|
}
|
|
return rvIterator;
|
|
}
|
|
|
|
NSS_IMPLEMENT void
|
|
nssListIterator_Destroy(nssListIterator *iter)
|
|
{
|
|
if (iter->lock) {
|
|
(void)PZ_DestroyLock(iter->lock);
|
|
}
|
|
nssList_Destroy(iter->list);
|
|
nss_ZFreeIf(iter);
|
|
}
|
|
|
|
NSS_IMPLEMENT void *
|
|
nssListIterator_Start(nssListIterator *iter)
|
|
{
|
|
NSSLIST_LOCK_IF(iter);
|
|
if (iter->list->count == 0) {
|
|
return NULL;
|
|
}
|
|
iter->current = iter->list->head;
|
|
return iter->current->data;
|
|
}
|
|
|
|
NSS_IMPLEMENT void *
|
|
nssListIterator_Next(nssListIterator *iter)
|
|
{
|
|
nssListElement *node;
|
|
PRCList *link;
|
|
if (iter->list->count == 1 || iter->current == NULL) {
|
|
/* Reached the end of the list. Don't change the state, force to
|
|
* user to call nssList_Finish to clean up.
|
|
*/
|
|
return NULL;
|
|
}
|
|
node = (nssListElement *)PR_NEXT_LINK(&iter->current->link);
|
|
link = &node->link;
|
|
if (link == PR_LIST_TAIL(&iter->list->head->link)) {
|
|
/* Signal the end of the list. */
|
|
iter->current = NULL;
|
|
return node->data;
|
|
}
|
|
iter->current = node;
|
|
return node->data;
|
|
}
|
|
|
|
NSS_IMPLEMENT PRStatus
|
|
nssListIterator_Finish(nssListIterator *iter)
|
|
{
|
|
iter->current = iter->list->head;
|
|
return (iter->lock) ? PZ_Unlock(iter->lock) : PR_SUCCESS;
|
|
}
|
|
|