usr/src/cmd/fs.d/cachefs/common/subr.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  * Copyright (c) 1996-1998, by Sun Microsystems, Inc.
  24  * All Rights Reserved.
  25  */
  26
  27 #ifndef _SUBR_H
  28 #define _SUBR_H
  29
  30 #pragma ident   "%Z%%M% %I%     %E% SMI"
  31
  32 /*
  33  *
  34  *                      subr.h
  35  *
  36  * Function prototypes for subr.c
  37  */
  38
  39 #include <ftw.h>
  40
  41 /* size to make a buffer for holding a pathname */
  42 #define CACHEFS_XMAXPATH (PATH_MAX + MAXNAMELEN + 2)
  43
  44 #ifdef __cplusplus
  45 extern "C" {
  46 #endif
  47
  48 /* resource file info */
  49 struct cachefs_rinfo {
  50         int     r_fsize;        /* total file size */
  51         int     r_ptroffset;    /* offset to pointers area */
  52         int     r_ptrsize;      /* size of pointers area */
  53         int     r_identoffset;  /* offset to idents area */
  54         int     r_identsize;    /* size of idents area */
  55 };
  56
  57 struct cachefs_user_values {
  58         int uv_maxblocks;
  59         int uv_minblocks;
  60         int uv_threshblocks;
  61         int uv_maxfiles;
  62         int uv_minfiles;
  63         int uv_threshfiles;
  64         int uv_maxfilesize;
  65         int uv_hiblocks;
  66         int uv_lowblocks;
  67         int uv_hifiles;
  68         int uv_lowfiles;
  69 };
  70
  71 int cachefs_dir_lock(const char *cachedirp, int shared);
  72 int cachefs_dir_unlock(int fd);
  73 int cachefs_label_file_get(const char *filep, struct cache_label *clabelp);
  74 int cachefs_label_file_put(const char *filep, struct cache_label *clabelp);
  75 int cachefs_inuse(const char *cachedirp);
  76 int cachefs_label_file_vcheck(char *filep, struct cache_label *clabelp);
  77 void cachefs_resource_size(int maxinodes, struct cachefs_rinfo *rinfop);
  78 int cachefs_create_cache(char *dirp, struct cachefs_user_values *,
  79     struct cache_label *);
  80 int cachefs_delete_all_cache(char *dirp);
  81 int cachefs_delete_cache(char *dirp, char *namep);
  82 int cachefs_delete_file(const char *namep, const struct stat64 *statp, int flg,
  83     struct FTW *ftwp);
  84 int cachefs_convert_uv2cl(const struct cachefs_user_values *uvp,
  85     struct cache_label *clp, const char *dirp);
  86 int cachefs_convert_cl2uv(const struct cache_label *clp,
  87     struct cachefs_user_values *uvp, const char *dirp);
  88 char *cachefs_file_to_dir(const char *);
  89 int cachefs_clean_flag_test(const char *cachedirp);
  90 void pr_err(char *fmt, ...);
  91 time32_t get_boottime(void);
  92
  93 #ifdef __cplusplus
  94 }
  95 #endif
  96
  97 #endif /* _SUBR_H */