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Vector Packet Processing
error.h
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1 /*
2  * Copyright (c) 2015 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  * error.h: drop/punt error packets
17  *
18  * Copyright (c) 2008 Eliot Dresselhaus
19  *
20  * Permission is hereby granted, free of charge, to any person obtaining
21  * a copy of this software and associated documentation files (the
22  * "Software"), to deal in the Software without restriction, including
23  * without limitation the rights to use, copy, modify, merge, publish,
24  * distribute, sublicense, and/or sell copies of the Software, and to
25  * permit persons to whom the Software is furnished to do so, subject to
26  * the following conditions:
27  *
28  * The above copyright notice and this permission notice shall be
29  * included in all copies or substantial portions of the Software.
30  *
31  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
32  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
33  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
34  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
35  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
36  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
37  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
38  */
39 
40 #ifndef included_vlib_error_h
41 #define included_vlib_error_h
42 
43 /* Combined 16 bit node & 16 bit code as 32 bit number. */
44 typedef u16 vlib_error_t;
45 
48 {
49  return e >> 6;
50 }
51 
54 {
55  return e & 0x3f;
56 }
57 
59 vlib_error_set (u32 node_index, u32 code)
60 {
61  ASSERT (node_index < (1 << 10));
62  ASSERT (code < (1 << 6));
63  return (node_index << 6) | code;
64 }
65 
68 {
69  ASSERT (vlib_error_get_code (e) == 0);
70  ASSERT (code < (1 << 6));
71  e |= code;
72  return e;
73 }
74 
75 typedef struct
76 {
77  /* Error counters. */
79 
80  /* Counter values as of last counter clear. */
82 
83  /* Error name strings in heap. Heap index
84  indexes counter vector. */
87 
88 /* Per node error registration. */
89 void vlib_register_errors (struct vlib_main_t *vm,
90  u32 node_index,
91  u32 n_errors, char *error_strings[]);
92 
93 #endif /* included_vlib_error_h */
94 
95 /*
96  * fd.io coding-style-patch-verification: ON
97  *
98  * Local Variables:
99  * eval: (c-set-style "gnu")
100  * End:
101  */
unsigned long u64
Definition: types.h:89
u16 vlib_error_t
Definition: error.h:44
u64 * counters_last_clear
Definition: error.h:81
#define always_inline
Definition: clib.h:92
void vlib_register_errors(struct vlib_main_t *vm, u32 node_index, u32 n_errors, char *error_strings[])
Definition: error.c:158
unsigned int u32
Definition: types.h:88
static vlib_error_t vlib_error_set(u32 node_index, u32 code)
Definition: error.h:59
unsigned short u16
Definition: types.h:57
static u32 vlib_error_get_code(vlib_error_t e)
Definition: error.h:53
u64 * counters
Definition: error.h:78
static vlib_error_t vlib_error_set_code(vlib_error_t e, u32 code)
Definition: error.h:67
char ** error_strings_heap
Definition: error.h:85
vlib_main_t * vm
Definition: buffer.c:294
#define ASSERT(truth)
static u32 vlib_error_get_node(vlib_error_t e)
Definition: error.h:47