1 /* $NetBSD: rf_callback.c,v 1.22 2009/03/15 17:17:23 cegger 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 1.22 2009/03/15 17:17:23 cegger 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(RF_ShutdownList_t **listp) 62 { 63 64 rf_pool_init(&rf_pools.callback, sizeof(RF_CallbackDesc_t), 65 "rf_callbackpl", RF_MIN_FREE_CALLBACK, RF_MAX_FREE_CALLBACK); 66 rf_ShutdownCreate(listp, rf_ShutdownCallback, NULL); 67 68 return (0); 69 } 70 71 RF_CallbackDesc_t * 72 rf_AllocCallbackDesc(void) 73 { 74 RF_CallbackDesc_t *p; 75 76 p = pool_get(&rf_pools.callback, PR_WAITOK); 77 return (p); 78 } 79 80 void 81 rf_FreeCallbackDesc(RF_CallbackDesc_t *p) 82 { 83 pool_put(&rf_pools.callback, p); 84 } 85