/* * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* * @OSF_COPYRIGHT@ * */ /* * HISTORY * * Revision 1.1.1.1 1998/09/22 21:05:34 wsanchez * Import of Mac OS X kernel (~semeria) * * Revision 1.1.1.1 1998/03/07 02:25:54 wsanchez * Import of OSF Mach kernel (~mburg) * * Revision 1.1.2.4 1995/10/09 17:13:55 devrcs * Merged RT3_SHARED version into `mainline.' * [1995/09/13 16:17:31 joe] * * Revision 1.1.2.3 1995/09/18 19:13:40 devrcs * Merged RT3_SHARED version into `mainline.' * [1995/09/13 16:17:31 joe] * * Revision 1.1.2.2 1995/01/10 05:11:19 devrcs * mk6 CR801 - new file for mk6_shared from cnmk_shared. * [1994/12/01 21:11:51 dwm] * * Revision 1.1.2.1 1994/10/21 18:28:53 joe * Initial ETAP submission * [1994/10/20 19:31:35 joe] * * $EndLog$ */ /* * File : etap_pool.h * * The start_data_node structure is primarily needed to hold * start information for read locks (since multiple readers * can acquire a read lock). For consistency, however, the * structure is used for write locks as well. Each complex * lock will maintain a linked list of these structures. */ #ifndef _KERN_ETAP_POOL_H_ #define _KERN_ETAP_POOL_H_ #include <kern/etap_options.h> #include <mach/etap.h> #include <mach/boolean.h> #if ETAP_LOCK_TRACE #include <cpus.h> #include <mach/clock_types.h> #include <mach/kern_return.h> #include <kern/misc_protos.h> struct start_data_node { unsigned int thread_id; /* thread id */ etap_time_t start_hold_time; /* time of last acquisition */ etap_time_t start_wait_time; /* time of first miss */ unsigned int start_pc; /* pc of acquiring function */ unsigned int end_pc; /* pc of relinquishing function */ struct start_data_node *next; /* pointer to next list entry */ }; typedef struct start_data_node* start_data_node_t; /* * The start_data_node pool is statically * allocated and privatly maintained */ #define SD_POOL_ENTRIES (NCPUS * 256) extern void init_start_data_pool(void); extern start_data_node_t get_start_data_node(void); extern void free_start_data_node(start_data_node_t); #else /* ETAP_LOCK_TRACE */ typedef boolean_t start_data_node_t; #define get_start_data_node() #define free_start_start_data_node(node) #endif /* ETAP_LOCK_TRACE */ #define SD_ENTRY_NULL ((start_data_node_t) 0) #endif /* _KERN_ETAP_POOL_H_ */