NetBSD/sys/dev/raidframe/rf_callback.c

96 lines
2.5 KiB
C

/* $NetBSD: rf_callback.c,v 1.8 2002/10/25 03:14:37 oster Exp $ */
/*
* Copyright (c) 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Jim Zelenka
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
/*****************************************************************************************
*
* callback.c -- code to manipulate callback descriptor
*
****************************************************************************************/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: rf_callback.c,v 1.8 2002/10/25 03:14:37 oster Exp $");
#include <dev/raidframe/raidframevar.h>
#include <sys/pool.h>
#include "rf_archs.h"
#include "rf_threadstuff.h"
#include "rf_callback.h"
#include "rf_debugMem.h"
#include "rf_freelist.h"
#include "rf_shutdown.h"
static struct pool rf_callback_pool;
#define RF_MAX_FREE_CALLBACK 64
#define RF_CALLBACK_INC 4
#define RF_CALLBACK_INITIAL 32
static void rf_ShutdownCallback(void *);
static void
rf_ShutdownCallback(ignored)
void *ignored;
{
pool_destroy(&rf_callback_pool);
}
int
rf_ConfigureCallback(listp)
RF_ShutdownList_t **listp;
{
int rc;
pool_init(&rf_callback_pool, sizeof(RF_CallbackDesc_t), 0, 0,
RF_CALLBACK_INITIAL, "rf_callbackpl", NULL);
pool_sethiwat(&rf_callback_pool, RF_MAX_FREE_CALLBACK);
rc = rf_ShutdownCreate(listp, rf_ShutdownCallback, NULL);
if (rc) {
rf_print_unable_to_add_shutdown(__FILE__,__LINE__, rc);
rf_ShutdownCallback(NULL);
return (rc);
}
return (0);
}
RF_CallbackDesc_t *
rf_AllocCallbackDesc()
{
RF_CallbackDesc_t *p;
p = pool_get(&rf_callback_pool, PR_NOWAIT);
return (p);
}
void
rf_FreeCallbackDesc(p)
RF_CallbackDesc_t *p;
{
pool_put(&rf_callback_pool, p);
}