baset.h
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上传日期:2007-01-12
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- /*
- * The contents of this file are subject to the Mozilla Public
- * License Version 1.1 (the "License"); you may not use this file
- * except in compliance with the License. You may obtain a copy of
- * the License at http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS
- * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- * implied. See the License for the specific language governing
- * rights and limitations under the License.
- *
- * The Original Code is the Netscape security libraries.
- *
- * The Initial Developer of the Original Code is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1994-2000 Netscape Communications Corporation. All
- * Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL"), in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your
- * version of this file only under the terms of the GPL and not to
- * allow others to use your version of this file under the MPL,
- * indicate your decision by deleting the provisions above and
- * replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient
- * may use your version of this file under either the MPL or the
- * GPL.
- */
- #ifndef BASET_H
- #define BASET_H
- #ifdef DEBUG
- static const char BASET_CVS_ID[] = "@(#) $RCSfile: baset.h,v $ $Revision: 1.1 $ $Date: 2000/03/31 19:50:09 $ $Name: NSS_3_1_1_RTM $";
- #endif /* DEBUG */
- /*
- * baset.h
- *
- * This file contains definitions for the basic types used throughout
- * nss but not available publicly.
- */
- #ifndef NSSBASET_H
- #include "nssbaset.h"
- #endif /* NSSBASET_H */
- #include "plhash.h"
- PR_BEGIN_EXTERN_C
- /*
- * nssArenaMark
- *
- * This type is used to mark the current state of an NSSArena.
- */
- struct nssArenaMarkStr;
- typedef struct nssArenaMarkStr nssArenaMark;
- #ifdef DEBUG
- /*
- * ARENA_THREADMARK
- *
- * Optionally, this arena implementation can be compiled with some
- * runtime checking enabled, which will catch the situation where
- * one thread "marks" the arena, another thread allocates memory,
- * and then the mark is released. Usually this is a surprise to
- * the second thread, and this leads to weird runtime errors.
- * Define ARENA_THREADMARK to catch these cases; we define it for all
- * (internal and external) debug builds.
- */
- #define ARENA_THREADMARK
- /*
- * ARENA_DESTRUCTOR_LIST
- *
- * Unfortunately, our pointer-tracker facility, used in debug
- * builds to agressively fight invalid pointers, requries that
- * pointers be deregistered when objects are destroyed. This
- * conflicts with the standard arena usage where "memory-only"
- * objects (that don't hold onto resources outside the arena)
- * can be allocated in an arena, and never destroyed other than
- * when the arena is destroyed. Therefore we have added a
- * destructor-registratio facility to our arenas. This was not
- * a simple decision, since we're getting ever-further away from
- * the original arena philosophy. However, it was felt that
- * adding this in debug builds wouldn't be so bad; as it would
- * discourage them from being used for "serious" purposes.
- * This facility requires ARENA_THREADMARK to be defined.
- */
- #ifdef ARENA_THREADMARK
- #define ARENA_DESTRUCTOR_LIST
- #endif /* ARENA_THREADMARK */
- #endif /* DEBUG */
- /*
- * nssPointerTracker
- *
- * This type is used in debug builds (both external and internal) to
- * track our object pointers. Objects of this type must be statically
- * allocated, which means the structure size must be available to the
- * compiler. Therefore we must expose the contents of this structure.
- * But please don't access elements directly; use the accessors.
- */
- #ifdef DEBUG
- struct nssPointerTrackerStr {
- PRCallOnceType once;
- PRLock *lock;
- PLHashTable *table;
- };
- typedef struct nssPointerTrackerStr nssPointerTracker;
- #endif /* DEBUG */
- /*
- * nssStringType
- *
- * There are several types of strings in the real world. We try to
- * use only UTF8 and avoid the rest, but that's not always possible.
- * So we have a couple converter routines to go to and from the other
- * string types. We have to be able to specify those string types,
- * so we have this enumeration.
- */
- enum nssStringTypeEnum {
- nssStringType_DirectoryString,
- nssStringType_TeletexString, /* Not "teletext" with trailing 't' */
- nssStringType_PrintableString,
- nssStringType_UniversalString,
- nssStringType_BMPString,
- nssStringType_UTF8String,
- nssStringType_PHGString,
- nssStringType_GeneralString,
- nssStringType_Unknown = -1
- };
- typedef enum nssStringTypeEnum nssStringType;
- PR_END_EXTERN_C
- #endif /* BASET_H */