diff options
Diffstat (limited to 'zfs/lib/libumem/umem_base.h')
| -rw-r--r-- | zfs/lib/libumem/umem_base.h | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/zfs/lib/libumem/umem_base.h b/zfs/lib/libumem/umem_base.h new file mode 100644 index 000000000..ad3cc1ef0 --- /dev/null +++ b/zfs/lib/libumem/umem_base.h @@ -0,0 +1,143 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License, Version 1.0 only + * (the "License"). You may not use this file except in compliance + * with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 2004 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _UMEM_BASE_H +#define _UMEM_BASE_H + +/* #pragma ident "@(#)umem_base.h 1.4 05/06/08 SMI" */ + +#include <umem_impl.h> + +#ifdef __cplusplus +extern "C" { +#endif + +#include "misc.h" + +extern size_t pagesize; +#undef PAGESIZE +#define PAGESIZE pagesize + +/* + * umem.c: non-tunables + */ +extern vmem_t *umem_memalign_arena; + +extern int umem_ready; +extern thread_t umem_init_thr; /* the thread doing the init */ + +extern int umem_init(void); /* do umem's initialization */ +/* #pragma rarely_called(umem_init) */ + +extern umem_log_header_t *umem_transaction_log; +extern umem_log_header_t *umem_content_log; +extern umem_log_header_t *umem_failure_log; +extern umem_log_header_t *umem_slab_log; + +extern mutex_t umem_init_lock; + +extern mutex_t umem_cache_lock; +extern umem_cache_t umem_null_cache; + +extern mutex_t umem_flags_lock; + +extern mutex_t umem_update_lock; +extern cond_t umem_update_cv; +extern volatile thread_t umem_st_update_thr; +extern thread_t umem_update_thr; +extern struct timeval umem_update_next; + +extern volatile hrtime_t umem_reap_next; +extern volatile uint32_t umem_reaping; +#define UMEM_REAP_DONE 0x00000000 /* inactive */ +#define UMEM_REAP_ADDING 0x00000001 /* umem_reap() is active */ +#define UMEM_REAP_ACTIVE 0x00000002 /* update thread is reaping */ + +/* + * umem.c: tunables + */ +extern uint32_t umem_max_ncpus; + +extern uint32_t umem_stack_depth; +extern uint32_t umem_reap_interval; +extern uint32_t umem_update_interval; +extern uint32_t umem_depot_contention; +extern uint32_t umem_abort; +extern uint32_t umem_output; +extern uint32_t umem_logging; +extern uint32_t umem_mtbf; +extern size_t umem_transaction_log_size; +extern size_t umem_content_log_size; +extern size_t umem_failure_log_size; +extern size_t umem_slab_log_size; +extern size_t umem_content_maxsave; +extern size_t umem_lite_minsize; +extern size_t umem_lite_maxalign; +extern size_t umem_maxverify; +extern size_t umem_minfirewall; + +extern uint32_t umem_flags; + +/* + * umem.c: Internal aliases (to avoid PLTs) + */ +extern void *_umem_alloc(size_t size, int umflags); +extern void *_umem_zalloc(size_t size, int umflags); +extern void _umem_free(void *buf, size_t size); + +extern void *_umem_cache_alloc(umem_cache_t *cache, int flags); +extern void _umem_cache_free(umem_cache_t *cache, void *buffer); + +/* + * umem.c: private interfaces + */ +extern void umem_type_init(caddr_t, size_t, size_t); +extern int umem_get_max_ncpus(void); +extern void umem_process_updates(void); +extern void umem_cache_applyall(void (*)(umem_cache_t *)); +extern void umem_cache_update(umem_cache_t *); + +/* + * umem_fork.c: private interfaces + */ +extern void umem_forkhandler_init(void); + +/* + * umem_update_thread.c + */ +extern int umem_create_update_thread(void); + +/* + * envvar.c: + */ +void umem_setup_envvars(int); +void umem_process_envvars(void); + +#ifdef __cplusplus +} +#endif + +#endif /* _UMEM_BASE_H */ |