1 /* 2 * bmon/history.h History Management 3 * 4 * Copyright (c) 2001-2013 Thomas Graf <tgraf@suug.ch> 5 * Copyright (c) 2013 Red Hat, Inc. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the "Software"), 9 * to deal in the Software without restriction, including without limitation 10 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11 * and/or sell copies of the Software, and to permit persons to whom the 12 * Software is furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included 15 * in all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 23 * DEALINGS IN THE SOFTWARE. 24 */ 25 26 #ifndef __BMON_HISTORY_H_ 27 #define __BMON_HISTORY_H_ 28 29 #include <bmon/bmon.h> 30 #include <bmon/attr.h> 31 32 #define HISTORY_UNKNOWN ((uint64_t) -1) 33 #define HBEAT_TRIGGER 60.0f 34 35 enum { 36 HISTORY_TYPE_8 = 1, 37 HISTORY_TYPE_16 = 2, 38 HISTORY_TYPE_32 = 4, 39 HISTORY_TYPE_64 = 8, 40 }; 41 42 struct history_def 43 { 44 char * hd_name; 45 int hd_size, 46 hd_type; 47 float hd_interval; 48 49 struct list_head hd_list; 50 }; 51 52 struct history_store 53 { 54 /* TODO? store error ratio? */ 55 void * hs_data; 56 uint64_t hs_prev_total; 57 }; 58 59 struct history 60 { 61 /* index to current entry in data array */ 62 int h_index; 63 struct history_def * h_definition; 64 /* time of last history update */ 65 timestamp_t h_last_update; 66 struct list_head h_list; 67 68 float h_min_interval, 69 h_max_interval; 70 71 struct history_store h_rx, 72 h_tx; 73 74 }; 75 76 extern struct history_def * history_def_lookup(const char *); 77 extern struct history_def * history_def_alloc(const char *); 78 79 extern uint64_t history_data(struct history *, 80 struct history_store *, int); 81 extern void history_update(struct attr *, 82 struct history *, timestamp_t *); 83 extern struct history * history_alloc(struct history_def *); 84 extern void history_free(struct history *); 85 extern void history_attach(struct attr *); 86 87 extern struct history_def * history_select_first(void); 88 extern struct history_def * history_select_last(void); 89 extern struct history_def * history_select_next(void); 90 extern struct history_def * history_select_prev(void); 91 extern struct history_def * history_current(void); 92 93 #endif 94