FD.io VPP  v19.04.4-rc0-5-ge88582fac
Vector Packet Processing
throttle.c
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1 /*
2  * Copyright (c) 2018 Cisco and/or its affiliates.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #include <vnet/util/throttle.h>
17 
18 void
19 throttle_init (throttle_t * t, u32 n_threads, f64 time)
20 {
21  u32 i;
22 
23  t->time = time;
24  vec_validate (t->bitmaps, n_threads);
25  vec_validate (t->seeds, n_threads);
26  vec_validate (t->last_seed_change_time, n_threads);
27 
28  for (i = 0; i < n_threads; i++)
29  vec_validate (t->bitmaps[i], (THROTTLE_BITS / BITS (uword)) - 1);
30 }
31 
32 /*
33  * fd.io coding-style-patch-verification: ON
34  *
35  * Local Variables:
36  * eval: (c-set-style "gnu")
37  * End:
38  */
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment) ...
Definition: vec.h:439
f64 time
Definition: throttle.h:30
void throttle_init(throttle_t *t, u32 n_threads, f64 time)
Definition: throttle.c:19
int i
double f64
Definition: types.h:142
u64 * seeds
Definition: throttle.h:32
unsigned int u32
Definition: types.h:88
A throttle Used in the data plane to decide if a given hash should be throttled, i.e.
Definition: throttle.h:28
uword ** bitmaps
Definition: throttle.h:31
#define THROTTLE_BITS
Definition: throttle.h:36
f64 * last_seed_change_time
Definition: throttle.h:33
u64 uword
Definition: types.h:112
#define BITS(x)
Definition: clib.h:61