gen/asl_store.h

   1 #ifndef __ASL_STORE_H__
   2 #define __ASL_STORE_H__
   3
   4 /*
   5  * Copyright (c) 2007 Apple Inc.  All rights reserved.
   6  *
   7  * @APPLE_LICENSE_HEADER_START@
   8  *
   9  * "Portions Copyright (c) 2007 Apple Inc.  All Rights
  10  * Reserved.  This file contains Original Code and/or Modifications of
  11  * Original Code as defined in and that are subject to the Apple Public
  12  * Source License Version 1.0 (the 'License').  You may not use this file
  13  * except in compliance with the License.  Please obtain a copy of the
  14  * License at http://www.apple.com/publicsource and read it before using
  15  * this file.
  16  *
  17  * The Original Code and all software distributed under the License are
  18  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  19  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  20  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  22  * License for the specific language governing rights and limitations
  23  * under the License."
  24  *
  25  * @APPLE_LICENSE_HEADER_END@
  26  */
  27
  28 #include <stdio.h>
  29 #include <stdint.h>
  30 #include <sys/time.h>
  31 #include <asl.h>
  32 #include <asl_file.h>
  33
  34 #define PATH_ASL_STORE "/var/log/asl"
  35 #define PATH_ASL_ARCHIVE "/var/log/asl.archive"
  36 #define FILE_ASL_STORE_DATA "StoreData"
  37 #define FILE_ASL_STORE_SWEEP_SEMAPHORE "SweepStore"
  38
  39 #define FILE_CACHE_SIZE 64
  40 #define FILE_CACHE_TTL 300
  41
  42 typedef struct
  43 {
  44         time_t ts;
  45         uid_t u;
  46         gid_t g;
  47         time_t bb;
  48         char *path;
  49         asl_file_t *f;
  50 } asl_cached_file_t;
  51
  52 typedef struct
  53 {
  54         char *base_dir;
  55         FILE *storedata;
  56         uint64_t next_id;
  57         asl_cached_file_t file_cache[FILE_CACHE_SIZE];
  58         void *work;
  59         time_t start_today;
  60         time_t start_tomorrow;
  61         time_t last_write;
  62         size_t max_file_size;
  63 } asl_store_t;
  64
  65 uint32_t asl_store_open_write(const char *basedir, asl_store_t **s);
  66 uint32_t asl_store_open_read(const char *basedir, asl_store_t **s);
  67 uint32_t asl_store_close(asl_store_t *s);
  68 uint32_t asl_store_statistics(asl_store_t *s, aslmsg *msg);
  69
  70 uint32_t asl_store_save(asl_store_t *s, aslmsg msg);
  71
  72 uint32_t asl_store_match(asl_store_t *s, aslresponse query, aslresponse *res, uint64_t *last_id, uint64_t start_id, uint32_t count, int32_t direction);
  73 uint32_t asl_store_match_timeout(asl_store_t *s, aslresponse query, aslresponse *res, uint64_t *last_id, uint64_t start_id, uint32_t count, int32_t direction, uint32_t usec);
  74
  75 uint32_t asl_store_match_start(asl_store_t *s, uint64_t start_id, int32_t direction);
  76 uint32_t asl_store_match_next(asl_store_t *s, aslresponse query, aslresponse *res, uint32_t count);
  77
  78 uint32_t asl_store_max_file_size(asl_store_t *s, size_t max);
  79 uint32_t asl_store_signal_sweep(asl_store_t *s);
  80 uint32_t asl_store_sweep_file_cache(asl_store_t *s);
  81
  82 #endif __ASL_STORE_H__