aslcommon/asl_mini_memory.h

   1 /*
   2  * Copyright (c) 2007-2008 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 #ifndef __asl_mini_memory_H__
  25 #define __asl_mini_memory_H__
  26 #include <stdint.h>
  27 #include <asl.h>
  28
  29 #define ASL_MINI_MSG_FLAG_SEARCH_MATCH 0x80
  30 #define ASL_MINI_MSG_FLAG_SEARCH_CLEAR 0x7f
  31
  32 typedef struct
  33 {
  34         uint32_t hash;
  35         uint32_t refcount;
  36         char str[];
  37 } mini_mem_string_t;
  38
  39 typedef struct
  40 {
  41         uint32_t mid;
  42         uint64_t time;
  43         uint8_t level;
  44         uint8_t flags;
  45         uint32_t pid;
  46         uint32_t uid;
  47         uint32_t gid;
  48         uint32_t kvcount;
  49         mini_mem_string_t *sender;
  50         mini_mem_string_t *facility;
  51         mini_mem_string_t *message;
  52         mini_mem_string_t **kvlist;
  53 } mini_mem_record_t;
  54
  55 typedef struct
  56 {
  57         uint32_t next_id;
  58         uint32_t string_count;
  59         void **string_cache;
  60         uint32_t record_count;
  61         uint32_t record_first;
  62         mini_mem_record_t **record;
  63         mini_mem_record_t *buffer_record;
  64 } asl_mini_memory_t;
  65
  66 uint32_t asl_mini_memory_open(uint32_t max_records, asl_mini_memory_t **s);
  67 uint32_t asl_mini_memory_close(asl_mini_memory_t *s);
  68 uint32_t asl_mini_memory_statistics(asl_mini_memory_t *s, aslmsg *msg);
  69
  70 uint32_t asl_mini_memory_save(asl_mini_memory_t *s, aslmsg msg, uint64_t *mid);
  71 uint32_t asl_mini_memory_fetch(asl_mini_memory_t *s, uint64_t mid, aslmsg *msg);
  72
  73 uint32_t asl_mini_memory_match(asl_mini_memory_t *s, aslresponse query, aslresponse *res, uint64_t *last_id, uint64_t start_id, uint32_t count, int32_t direction);
  74
  75 #endif __asl_mini_memory_H__