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/* Definitions for the nspoll io activity waiter
*
* Copyright 2009 Rainer Gerhards and Adiscon GmbH.
*
* This file is part of the rsyslog runtime library.
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
* -or-
* see COPYING.ASL20 in the source distribution
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef INCLUDED_NSPOLL_H
#define INCLUDED_NSPOLL_H
#include "netstrms.h"
/* some operations to be portable when we do not have epoll() available */
#define NSDPOLL_ADD 1
#define NSDPOLL_DEL 2
/* and some mode specifiers for waiting on input/output */
#define NSDPOLL_IN 1 /* EPOLLIN */
#define NSDPOLL_OUT 2 /* EPOLLOUT */
/* next is 4, 8, 16, ... - must be bit values, as they are ored! */
/* the nspoll object */
struct nspoll_s {
BEGINobjInstance; /* Data to implement generic object - MUST be the first data element! */
nsd_t *pDrvrData; /**< the driver's data elements */
uchar *pBaseDrvrName; /**< nsd base driver name to use, or NULL if system default */
uchar *pDrvrName; /**< full base driver name (set when driver is loaded) */
nsdpoll_if_t Drvr; /**< our stream driver */
};
/* interface */
BEGINinterface(nspoll) /* name must also be changed in ENDinterface macro! */
rsRetVal (*Construct)(nspoll_t **ppThis);
rsRetVal (*ConstructFinalize)(nspoll_t *pThis);
rsRetVal (*Destruct)(nspoll_t **ppThis);
rsRetVal (*Wait)(nspoll_t *pNsdpoll, int timeout, int *numEntries, nsd_epworkset_t workset[]);
rsRetVal (*Ctl)(nspoll_t *pNsdpoll, netstrm_t *pStrm, int id, void *pUsr, int mode, int op);
rsRetVal (*IsEPollSupported)(void); /* static method */
/* v3 - 2013-09-17 by rgerhards */
rsRetVal (*SetDrvrName)(nspoll_t *pThis, uchar *name);
ENDinterface(nspoll)
#define nspollCURR_IF_VERSION 3 /* increment whenever you change the interface structure! */
/* interface change in v2 is that wait supports multiple return objects */
/* prototypes */
PROTOTYPEObj(nspoll);
/* the name of our library binary */
#define LM_NSPOLL_FILENAME LM_NETSTRMS_FILENAME
#endif /* #ifndef INCLUDED_NSPOLL_H */
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