94 lines
2.7 KiB
C
94 lines
2.7 KiB
C
/*
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* bmon/history.h History Management
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*
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* Copyright (c) 2001-2013 Thomas Graf <tgraf@suug.ch>
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* Copyright (c) 2013 Red Hat, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifndef __BMON_HISTORY_H_
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#define __BMON_HISTORY_H_
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#include <bmon/bmon.h>
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#include <bmon/attr.h>
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#define HISTORY_UNKNOWN ((uint64_t) -1)
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#define HBEAT_TRIGGER 60.0f
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enum {
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HISTORY_TYPE_8 = 1,
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HISTORY_TYPE_16 = 2,
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HISTORY_TYPE_32 = 4,
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HISTORY_TYPE_64 = 8,
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};
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struct history_def
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{
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char * hd_name;
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int hd_size,
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hd_type;
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float hd_interval;
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struct list_head hd_list;
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};
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struct history_store
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{
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/* TODO? store error ratio? */
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void * hs_data;
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uint64_t hs_prev_total;
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};
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struct history
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{
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/* index to current entry in data array */
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int h_index;
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struct history_def * h_definition;
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/* time of last history update */
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timestamp_t h_last_update;
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struct list_head h_list;
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float h_min_interval,
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h_max_interval;
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struct history_store h_rx,
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h_tx;
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};
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extern struct history_def * history_def_lookup(const char *);
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extern struct history_def * history_def_alloc(const char *);
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extern uint64_t history_data(struct history *,
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struct history_store *, int);
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extern void history_update(struct attr *,
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struct history *, timestamp_t *);
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extern struct history * history_alloc(struct history_def *);
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extern void history_free(struct history *);
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extern void history_attach(struct attr *);
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extern struct history_def * history_select_first(void);
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extern struct history_def * history_select_last(void);
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extern struct history_def * history_select_next(void);
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extern struct history_def * history_select_prev(void);
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extern struct history_def * history_current(void);
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#endif
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