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/*
*
* nrstats.h
*
* $Source: /Users/ekr/tmp/nrappkit-dump/nrappkit/src/stats/nrstats.h,v $
* $Revision: 1.4 $
* $Date: 2007/06/26 22:37:55 $
*
* API for keeping and sharing statistics
*
*
* Copyright (C) 2003-2005, Network Resonance, Inc.
* Copyright (C) 2006, Network Resonance, Inc.
* All Rights Reserved
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Network Resonance, Inc. nor the name of any
* contributors to this software may be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*
*/
#ifndef __NRSTATS_H__
#define __NRSTATS_H__
#include <sys/types.h>
#ifdef WIN32
#include <time.h>
#else
#include <sys/time.h>
#endif
#include <r_types.h>
#ifndef CAPTURE_USER
#define CAPTURE_USER "pcecap"
#endif
#define NR_MAX_STATS_TYPES 256 /* max number of stats objects */
#define NR_MAX_STATS_TYPE_NAME 26
typedef struct NR_stats_type_ {
char name[NR_MAX_STATS_TYPE_NAME];
int (*reset)(void *stats);
int (*print)(void *stats, char *stat_namespace, void (*output)(void *handle, const char *fmt, ...), void *handle);
int (*get_lib_name)(char **libname);
unsigned int size;
} NR_stats_type;
typedef struct NR_stats_app_ {
time_t last_counter_reset;
time_t last_restart;
UINT8 total_restarts;
char version[64];
} NR_stats_app;
extern NR_stats_type *NR_stats_type_app;
/* everything measured in bytes */
typedef struct NR_stats_memory_ {
UINT8 current_size;
UINT8 max_size;
UINT8 in_use;
UINT8 in_use_max;
} NR_stats_memory;
extern NR_stats_type *NR_stats_type_memory;
/* all functions below return 0 on success, else they return an
* error code */
/* if errprintf is null, warnings and errors will be sent to /dev/null */
extern int NR_stats_startup(char *app_name, char *user_name, void (*errprintf)(void *handle, const char *fmt, ...), void *errhandle);
extern int NR_stats_shutdown(void);
#define NR_STATS_CREATE (1<<0)
extern int NR_stats_get(char *module_name, NR_stats_type *type, int flag, void **stats);
extern int NR_stats_clear(void *stats); /* zeroizes */
extern int NR_stats_reset(void *stats); /* zeros "speedometers" */
extern int NR_stats_register(NR_stats_type *type);
extern int NR_stats_acquire_mutex(void *stats);
extern int NR_stats_release_mutex(void *stats);
// TODO: should _get_names take an app_name argument (0==all)????
extern int NR_stats_get_names(unsigned int *nnames, char ***names);
extern int NR_stats_get_by_name(char *name, NR_stats_type **type, void **stats);
extern int NR_stats_get_lib_name(void *stats, char **lib_name);
extern int NR_stats_rmids(void);
extern char *NR_prefix_to_stats_module(char *prefix);
#define NR_INCREMENT_STAT(stat) do { \
stat++; if(stat>stat##_max) stat##_max=stat; \
} while (0)
#define NR_UPDATE_STAT(stat,newval) do { \
stat=newval; if(stat>stat##_max) stat##_max=stat; \
} while (0)
#endif
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