gecko-dev/security/nss/lib/base/nssbase.h
2008-06-06 08:40:11 -04:00

171 lines
4.6 KiB
C

/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* 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 the Initial Developer are Copyright (C) 1994-2000
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef NSSBASE_H
#define NSSBASE_H
#ifdef DEBUG
static const char NSSBASE_CVS_ID[] = "@(#) $RCSfile: nssbase.h,v $ $Revision: 1.3 $ $Date: 2005/01/20 02:25:45 $";
#endif /* DEBUG */
/*
* nssbase.h
*
* This header file contains the prototypes of the basic public
* NSS routines.
*/
#ifndef NSSBASET_H
#include "nssbaset.h"
#endif /* NSSBASET_H */
PR_BEGIN_EXTERN_C
/*
* NSSArena
*
* The public methods relating to this type are:
*
* NSSArena_Create -- constructor
* NSSArena_Destroy
*/
/*
* NSSArena_Create
*
* This routine creates a new memory arena. This routine may return
* NULL upon error, in which case it will have created an error stack.
*
* The top-level error may be one of the following values:
* NSS_ERROR_NO_MEMORY
*
* Return value:
* NULL upon error
* A pointer to an NSSArena upon success
*/
NSS_EXTERN NSSArena *
NSSArena_Create
(
void
);
extern const NSSError NSS_ERROR_NO_MEMORY;
/*
* NSSArena_Destroy
*
* This routine will destroy the specified arena, freeing all memory
* allocated from it. This routine returns a PRStatus value; if
* successful, it will return PR_SUCCESS. If unsuccessful, it will
* create an error stack and return PR_FAILURE.
*
* The top-level error may be one of the following values:
* NSS_ERROR_INVALID_ARENA
*
* Return value:
* PR_SUCCESS upon success
* PR_FAILURE upon failure
*/
NSS_EXTERN PRStatus
NSSArena_Destroy
(
NSSArena *arena
);
extern const NSSError NSS_ERROR_INVALID_ARENA;
/*
* The error stack
*
* The public methods relating to the error stack are:
*
* NSS_GetError
* NSS_GetErrorStack
*/
/*
* NSS_GetError
*
* This routine returns the highest-level (most general) error set
* by the most recent NSS library routine called by the same thread
* calling this routine.
*
* This routine cannot fail. It may return NSS_ERROR_NO_ERROR, which
* indicates that the previous NSS library call did not set an error.
*
* Return value:
* 0 if no error has been set
* A nonzero error number
*/
NSS_EXTERN NSSError
NSS_GetError
(
void
);
extern const NSSError NSS_ERROR_NO_ERROR;
/*
* NSS_GetErrorStack
*
* This routine returns a pointer to an array of NSSError values,
* containingthe entire sequence or "stack" of errors set by the most
* recent NSS library routine called by the same thread calling this
* routine. NOTE: the caller DOES NOT OWN the memory pointed to by
* the return value. The pointer will remain valid until the calling
* thread calls another NSS routine. The lowest-level (most specific)
* error is first in the array, and the highest-level is last. The
* array is zero-terminated. This routine may return NULL upon error;
* this indicates a low-memory situation.
*
* Return value:
* NULL upon error, which is an implied NSS_ERROR_NO_MEMORY
* A NON-caller-owned pointer to an array of NSSError values
*/
NSS_EXTERN NSSError *
NSS_GetErrorStack
(
void
);
PR_END_EXTERN_C
#endif /* NSSBASE_H */