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/*
* Copyright (c) 2013 Red Hat.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include <pcp/pmapi.h>
#include <pcp/mmv_stats.h>
static mmv_instances_t products[] = {
{ .internal = 0, .external = "Anvils" },
{ .internal = 1, .external = "Rockets" },
{ .internal = 2, .external = "Giant_Rubber_Bands" },
};
#define ACME_PRODUCTS_INDOM 61
#define ACME_PRODUCTS_COUNT (sizeof(products)/sizeof(products[0]))
static mmv_indom_t indoms[] = {
{ .serial = ACME_PRODUCTS_INDOM,
.count = ACME_PRODUCTS_COUNT,
.instances = products,
.shorttext = "Acme products",
.helptext = "Most popular products produced by the Acme Corporation",
},
};
static mmv_metric_t metrics[] = {
{ .name = "products.count",
.item = 7,
.type = MMV_TYPE_U64,
.semantics = MMV_SEM_COUNTER,
.dimension = MMV_UNITS(0,0,1,0,0,PM_COUNT_ONE),
.indom = ACME_PRODUCTS_INDOM,
.shorttext = "Acme factory product throughput",
.helptext =
"Monotonic increasing counter of products produced in the Acme Corporation\n"
"factory since starting the Acme production application. Quality guaranteed.",
},
{ .name = "products.time",
.item = 8,
.type = MMV_TYPE_U64,
.semantics = MMV_SEM_COUNTER,
.dimension = MMV_UNITS(0,1,0,0,PM_TIME_USEC,0),
.indom = ACME_PRODUCTS_INDOM,
.shorttext = "Machine time spent producing Acme products",
.helptext =
"Machine time spent producing Acme Corporation products. Does not include\n"
"time in queues waiting for production machinery.",
},
{ .name = "products.queuetime",
.item = 10,
.type = MMV_TYPE_U64,
.semantics = MMV_SEM_COUNTER,
.dimension = MMV_UNITS(0,1,0,0,PM_TIME_USEC,0),
.indom = ACME_PRODUCTS_INDOM,
.shorttext = "Queued time while producing Acme products",
.helptext =
"Time spent in the queue waiting to build Acme Corporation products,\n"
"while some other Acme product was being built instead of this one.",
},
};
#define INDOM_COUNT (sizeof(indoms)/sizeof(indoms[0]))
#define METRIC_COUNT (sizeof(metrics)/sizeof(metrics[0]))
#define ACME_CLUSTER 321 /* PMID cluster identifier */
int
main(int argc, char * argv[])
{
void *base;
pmAtomValue *count[ACME_PRODUCTS_COUNT];
pmAtomValue *machine[ACME_PRODUCTS_COUNT];
pmAtomValue *inqueue[ACME_PRODUCTS_COUNT];
unsigned int working;
unsigned int product;
unsigned int i;
base = mmv_stats_init("acme", ACME_CLUSTER, 0,
metrics, METRIC_COUNT, indoms, INDOM_COUNT);
if (!base) {
perror("mmv_stats_init");
return 1;
}
for (i = 0; i < ACME_PRODUCTS_COUNT; i++) {
count[i] = mmv_lookup_value_desc(base,
"products.count", products[i].external);
machine[i] = mmv_lookup_value_desc(base,
"products.time", products[i].external);
inqueue[i] = mmv_lookup_value_desc(base,
"products.queuetime", products[i].external);
}
while (1) {
/* choose a random number between 0-N -> product */
product = rand() % ACME_PRODUCTS_COUNT;
/* assign a time spent "working" on this product */
working = rand() % 50000;
/* pretend to "work" so process doesn't burn CPU */
usleep(working);
/* update the memory mapped values for this one: */
/* one more product produced and work time spent */
mmv_inc_value(base, machine[product], working); /* API */
count[product]->ull += 1; /* or direct mmap update */
/* all other products are "queued" for this time */
for (i = 0; i < ACME_PRODUCTS_COUNT; i++)
if (i != product)
mmv_inc_value(base, inqueue[i], working);
}
mmv_stats_stop("acme", base);
return 0;
}
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