FD.io VPP  v19.08-27-gf4dcae4
Vector Packet Processing
trace.h
Go to the documentation of this file.
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  * trace.h: VLIB trace buffer.
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_trace_h
41 #define included_vlib_trace_h
42 
43 #include <vppinfra/pool.h>
44 
45 typedef struct
46 {
47  /* CPU time stamp trace was made. */
49 
50  /* Node which generated this trace. */
52 
53  /* Number of data words in this trace. */
55 
56  /* Trace data follows. */
57  u8 data[0];
59 
60 typedef struct
61 {
62  /* Current number of traces in buffer. */
64 
65  /* Max. number of traces to be added to buffer. */
68 
69 /* Callback type for post-processing the vlib trace buffer */
70 struct vlib_main_t;
71 struct vlib_trace_main_t;
72 typedef void (vlib_trace_buffer_callback_t) (struct vlib_main_t *,
73  struct vlib_trace_main_t *);
74 
75 /* Callback type for alternate handling of vlib_add_trace internals */
76 struct vlib_node_runtime_t;
77 struct vlib_buffer_t;
78 typedef void *(vlib_add_trace_callback_t) (struct vlib_main_t *,
79  struct vlib_node_runtime_t * r,
80  struct vlib_buffer_t * b,
81  u32 n_data_bytes);
82 
83 typedef struct
84 {
85  /* Pool of trace buffers. */
87 
91 #define FILTER_FLAG_NONE 0
92 #define FILTER_FLAG_INCLUDE 1
93 #define FILTER_FLAG_EXCLUDE 2
95 
96  /* set on trace add, cleared on clear trace */
98 
99  /* Per node trace counts. */
101 
102  /* verbosity */
103  int verbose;
104 
105  /* a callback to enable customized consumption of the trace buffer content */
107 
108  /* a callback to enable customized addition of a new trace */
110 
112 
114 
115 #endif /* included_vlib_trace_h */
116 
117 /*
118  * fd.io coding-style-patch-verification: ON
119  *
120  * Local Variables:
121  * eval: (c-set-style "gnu")
122  * End:
123  */
u32 filter_flag
Definition: trace.h:90
vlib_trace_node_t * nodes
Definition: trace.h:100
unsigned long u64
Definition: types.h:89
Fixed length block allocator.
u8 data[128]
Definition: ipsec.api:249
u8 *( format_function_t)(u8 *s, va_list *args)
Definition: format.h:48
vlib_trace_buffer_callback_t * trace_buffer_callback
Definition: trace.h:106
void( vlib_trace_buffer_callback_t)(struct vlib_main_t *, struct vlib_trace_main_t *)
Definition: trace.h:72
unsigned char u8
Definition: types.h:56
u32 filter_node_index
Definition: trace.h:89
vlib_trace_header_t ** trace_buffer_pool
Definition: trace.h:86
u32 last_main_loop_count
Definition: trace.h:88
u32 trace_enable
Definition: trace.h:97
unsigned int u32
Definition: types.h:88
void *( vlib_add_trace_callback_t)(struct vlib_main_t *, struct vlib_node_runtime_t *r, struct vlib_buffer_t *b, u32 n_data_bytes)
Definition: trace.h:78
format_function_t format_vlib_trace
Definition: trace.h:113
vlib_add_trace_callback_t * add_trace_callback
Definition: trace.h:109
u32 filter_count
Definition: trace.h:94
VLIB buffer representation.
Definition: buffer.h:102