usr/src/cmd/fm/fmd/common/fmd_buf.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22
  23 /*
  24  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  25  * Use is subject to license terms.
  26  */
  27
  28 #ifndef _FMD_BUF_H
  29 #define _FMD_BUF_H
  30
  31 #pragma ident   "%Z%%M% %I%     %E% SMI"
  32
  33 #include <sys/types.h>
  34
  35 #ifdef  __cplusplus
  36 extern "C" {
  37 #endif
  38
  39 typedef struct fmd_buf {
  40         char *buf_name;                 /* name of this buffer */
  41         struct fmd_buf *buf_next;       /* next buffer in hash chain */
  42         void *buf_data;                 /* buffer data storage */
  43         size_t buf_size;                /* buffer size */
  44         uint_t buf_flags;               /* buffer flags (see below) */
  45 } fmd_buf_t;
  46
  47 #define FMD_BUF_DIRTY   0x1             /* buffer is dirty (needs checkpoint) */
  48
  49 typedef void fmd_buf_f(fmd_buf_t *, void *);
  50
  51 typedef struct fmd_buf_hash {
  52         fmd_buf_t **bh_hash;            /* hash bucket array for buffers */
  53         uint_t bh_hashlen;              /* length of hash bucket array */
  54         uint_t bh_count;                /* number of buffers in hash */
  55 } fmd_buf_hash_t;
  56
  57 extern void fmd_buf_hash_create(fmd_buf_hash_t *);
  58 extern size_t fmd_buf_hash_destroy(fmd_buf_hash_t *);
  59 extern void fmd_buf_hash_apply(fmd_buf_hash_t *, fmd_buf_f *, void *);
  60 extern void fmd_buf_hash_commit(fmd_buf_hash_t *);
  61 extern uint_t fmd_buf_hash_count(fmd_buf_hash_t *);
  62
  63 extern fmd_buf_t *fmd_buf_insert(fmd_buf_hash_t *, const char *, size_t);
  64 extern fmd_buf_t *fmd_buf_lookup(fmd_buf_hash_t *, const char *);
  65 extern void fmd_buf_delete(fmd_buf_hash_t *, const char *);
  66
  67 #ifdef  __cplusplus
  68 }
  69 #endif
  70
  71 #endif  /* _FMD_BUF_H */