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/*
* Copyright (c) 2015 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* counter.c: simple and packet/byte counters
*
* Copyright (c) 2008 Eliot Dresselhaus
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <vlib/vlib.h>
#include <vlib/stat_weak_inlines.h>
void
vlib_clear_simple_counters (vlib_simple_counter_main_t * cm)
{
counter_t *my_counters;
uword i, j;
for (i = 0; i < vec_len (cm->counters); i++)
{
my_counters = cm->counters[i];
for (j = 0; j < vec_len (my_counters); j++)
{
my_counters[j] = 0;
}
}
}
void
vlib_clear_combined_counters (vlib_combined_counter_main_t * cm)
{
vlib_counter_t *my_counters;
uword i, j;
for (i = 0; i < vec_len (cm->counters); i++)
{
my_counters = cm->counters[i];
for (j = 0; j < vec_len (my_counters); j++)
{
my_counters[j].packets = 0;
my_counters[j].bytes = 0;
}
}
}
void
vlib_validate_simple_counter (vlib_simple_counter_main_t * cm, u32 index)
{
vlib_thread_main_t *tm = vlib_get_thread_main ();
int i, resized = 0;
void *oldheap = vlib_stats_push_heap (cm->counters);
vec_validate (cm->counters, tm->n_vlib_mains - 1);
for (i = 0; i < tm->n_vlib_mains; i++)
if (index >= vec_len (cm->counters[i]))
{
if (vec_resize_will_expand (cm->counters[i],
index - vec_len (cm->counters[i]) +
1 /* length_increment */))
resized++;
vec_validate_aligned (cm->counters[i], index, CLIB_CACHE_LINE_BYTES);
}
/* Avoid the epoch increase when there was no counter vector resize. */
if (resized)
vlib_stats_pop_heap (cm, oldheap, index,
2 /* STAT_DIR_TYPE_COUNTER_VECTOR_SIMPLE */);
else
clib_mem_set_heap (oldheap);
}
void
vlib_free_simple_counter (vlib_simple_counter_main_t * cm)
{
int i;
vlib_stats_delete_cm (cm);
void *oldheap = vlib_stats_push_heap (cm->counters);
for (i = 0; i < vec_len (cm->counters); i++)
vec_free (cm->counters[i]);
vec_free (cm->counters);
clib_mem_set_heap (oldheap);
}
void
vlib_validate_combined_counter (vlib_combined_counter_main_t * cm, u32 index)
{
vlib_thread_main_t *tm = vlib_get_thread_main ();
int i, resized = 0;
void *oldheap = vlib_stats_push_heap (cm->counters);
vec_validate (cm->counters, tm->n_vlib_mains - 1);
for (i = 0; i < tm->n_vlib_mains; i++)
if (index >= vec_len (cm->counters[i]))
{
if (vec_resize_will_expand (cm->counters[i],
index - vec_len (cm->counters[i]) +
1 /* length_increment */))
resized++;
vec_validate_aligned (cm->counters[i], index, CLIB_CACHE_LINE_BYTES);
}
/* Avoid the epoch increase when there was no counter vector resize. */
if (resized)
vlib_stats_pop_heap (cm, oldheap, index,
3 /*STAT_DIR_TYPE_COUNTER_VECTOR_COMBINED */);
else
clib_mem_set_heap (oldheap);
}
int
vlib_validate_combined_counter_will_expand
(vlib_combined_counter_main_t * cm, u32 index)
{
vlib_thread_main_t *tm = vlib_get_thread_main ();
int i;
void *oldheap = vlib_stats_push_heap (cm->counters);
/* Possibly once in recorded history */
if (PREDICT_FALSE (vec_len (cm->counters) == 0))
{
clib_mem_set_heap (oldheap);
return 1;
}
for (i = 0; i < tm->n_vlib_mains; i++)
{
/* Trivially OK, and proves that index >= vec_len(...) */
if (index < vec_len (cm->counters[i]))
continue;
if (vec_resize_will_expand (cm->counters[i],
index - vec_len (cm->counters[i]) +
1 /* length_increment */))
{
clib_mem_set_heap (oldheap);
return 1;
}
}
clib_mem_set_heap (oldheap);
return 0;
}
void
vlib_free_combined_counter (vlib_combined_counter_main_t * cm)
{
int i;
vlib_stats_delete_cm (cm);
void *oldheap = vlib_stats_push_heap (cm->counters);
for (i = 0; i < vec_len (cm->counters); i++)
vec_free (cm->counters[i]);
vec_free (cm->counters);
clib_mem_set_heap (oldheap);
}
u32
vlib_combined_counter_n_counters (const vlib_combined_counter_main_t * cm)
{
ASSERT (cm->counters);
return (vec_len (cm->counters[0]));
}
u32
vlib_simple_counter_n_counters (const vlib_simple_counter_main_t * cm)
{
ASSERT (cm->counters);
return (vec_len (cm->counters[0]));
}
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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