plresolv.h

Netscape NSPR库源码

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 
 * 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 Portable Runtime (NSPR).
 * 
 * The Initial Developer of the Original Code is Netscape
 * Communications Corporation.  Portions created by Netscape are 
 * Copyright (C) 1998-2000 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.
 */

/*
 * plresolv.h - asynchronous name resolution using DNS 
 */

#ifndef _PLRESOLV_H_
#define _PLRESOLV_H_

/*
** THIS IS WORK IN PROGRESS. DO NOT ATTEMPT TO USE ANY PORTION OF THIS
** API UNTIL THIS MESSAGE NO LONGER EXISTS. IF YOU DO, THEN YOU SURRENDER
** THE RIGHT TO COMPLAIN ABOUT ANY CONTENT.
*/

#if defined(XP_UNIX)

#include <prtypes.h>
#include <prnetdb.h>

NSPR_BEGIN_EXTERN_C

#define PL_RESOLVE_MAXHOSTENTBUF        1024
#define PL_RESOLVE_DEFAULT_TIMEOUT      0

/* Error return codes */
#define PL_RESOLVE_OK            0
#define PL_RESOLVE_EWINIT        1           /* Failed to initialize window */
#define PL_RESOLVE_EMAKE         2           /* Failed to create request */
#define PL_RESOLVE_ELAUNCH       3           /* Error launching Async request */
#define PL_RESOLVE_ETIMEDOUT     4           /* Request timed-out */
#define PL_RESOLVE_EINVAL        5           /* Invalid argument */
#define PL_RESOLVE_EOVERFLOW     6           /* Buffer Overflow */
#define PL_RESOLVE_EUNKNOWN      7           /* berzerk error */

/* ----------- Function Prototypes ----------------*/

PR_EXTERN(PRStatus) PL_ResolveName(
    const char *name, unsigned char *buf,
    PRIntn bufsize, PRIntervalTime timeout,
    PRHostEnt *hostentry, PRIntervalTime *ttl);

PR_EXTERN(PRStatus) PL_ResolveAddr(
    const PRNetAddr *address, unsigned char *buf,
    PRIntn bufsize, PRIntervalTime timeout,
    PRHostEnt *hostentry, PRIntervalTime *ttl);

typedef struct PLResolveStats {
    int re_errors;
    int re_nu_look;
    int re_na_look;
    int re_replies;
    int re_requests;
    int re_resends;
    int re_sent;
    int re_timeouts;
} PLResolveStats;

typedef struct PLResoveInfo {
    PRBool enabled;
    PRUint32 numNameLookups;
    PRUint32 numAddrLookups;
    PRUint32 numLookupsInProgress;
    PLResolveStats stats;
} PLResoveInfo;

PR_EXTERN(void) PL_ResolveInfo(PLResoveInfo *info);

NSPR_END_EXTERN_C

#endif /* defined(XP_UNIX) */

#endif /* _PLRESOLV_H_ */