1 /* $NetBSD: rf_callback.c,v 1.16 2004/03/07 22:15:19 oster Exp $ */ 2 /* 3 * Copyright (c) 1995 Carnegie-Mellon University. 4 * All rights reserved. 5 * 6 * Author: Jim Zelenka 7 * 8 * Permission to use, copy, modify and distribute this software and 9 * its documentation is hereby granted, provided that both the copyright 10 * notice and this permission notice appear in all copies of the 11 * software, derivative works or modified versions, and any portions 12 * thereof, and that both notices appear in supporting documentation. 13 * 14 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 15 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 16 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 17 * 18 * Carnegie Mellon requests users of this software to return to 19 * 20 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 21 * School of Computer Science 22 * Carnegie Mellon University 23 * Pittsburgh PA 15213-3890 24 * 25 * any improvements or extensions that they make and grant Carnegie the 26 * rights to redistribute these changes. 27 */ 28 29 /***************************************************************************** 30 * 31 * callback.c -- code to manipulate callback descriptor 32 * 33 ****************************************************************************/ 34 35 36 #include <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: rf_callback.c,v 1.16 2004/03/07 22:15:19 oster Exp $"); 38 39 #include <dev/raidframe/raidframevar.h> 40 #include <sys/pool.h> 41 42 #include "rf_archs.h" 43 #include "rf_threadstuff.h" 44 #include "rf_callback.h" 45 #include "rf_debugMem.h" 46 #include "rf_general.h" 47 #include "rf_shutdown.h" 48 #include "rf_netbsd.h" 49 50 #define RF_MAX_FREE_CALLBACK 64 51 #define RF_MIN_FREE_CALLBACK 32 52 53 static void rf_ShutdownCallback(void *); 54 static void 55 rf_ShutdownCallback(void *ignored) 56 { 57 pool_destroy(&rf_pools.callback); 58 } 59 60 int 61 rf_ConfigureCallback(listp) 62 RF_ShutdownList_t **listp; 63 { 64 65 rf_pool_init(&rf_pools.callback, sizeof(RF_CallbackDesc_t), 66 "rf_callbackpl", RF_MIN_FREE_CALLBACK, RF_MAX_FREE_CALLBACK); 67 rf_ShutdownCreate(listp, rf_ShutdownCallback, NULL); 68 69 return (0); 70 } 71 72 RF_CallbackDesc_t * 73 rf_AllocCallbackDesc() 74 { 75 RF_CallbackDesc_t *p; 76 77 p = pool_get(&rf_pools.callback, PR_WAITOK); 78 return (p); 79 } 80 81 void 82 rf_FreeCallbackDesc(p) 83 RF_CallbackDesc_t *p; 84 { 85 pool_put(&rf_pools.callback, p); 86 } 87