FD.io VPP  v19.01.3-6-g70449b9b9
Vector Packet Processing
stat_segment.h
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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 #ifndef included_stat_segment_h
17 #define included_stat_segment_h
18 
19 #include <stdatomic.h>
20 #include <vlib/vlib.h>
21 #include <vppinfra/socket.h>
23 
24 typedef enum
25 {
37 
38 #define foreach_stat_segment_counter_name \
39  _(VECTOR_RATE, SCALAR_INDEX, vector_rate,) \
40  _(INPUT_RATE, SCALAR_INDEX, input_rate,) \
41  _(LAST_UPDATE, SCALAR_INDEX, last_update,) \
42  _(LAST_STATS_CLEAR, SCALAR_INDEX, last_stats_clear,) \
43  _(HEARTBEAT, SCALAR_INDEX, heartbeat,) \
44  _(NODE_CLOCKS, COUNTER_VECTOR_SIMPLE, clocks, /node) \
45  _(NODE_VECTORS, COUNTER_VECTOR_SIMPLE, vectors, /node) \
46  _(NODE_CALLS, COUNTER_VECTOR_SIMPLE, calls, /node) \
47  _(NODE_SUSPENDS, COUNTER_VECTOR_SIMPLE, suspends, /node)
48 
49 typedef struct
50 {
52  union {
53  uint64_t offset;
54  uint64_t index;
55  uint64_t value;
56  };
57  uint64_t offset_vector;
58  char name[128]; // TODO change this to pointer to "somewhere"
60 
61 /* Default stat segment 32m */
62 #define STAT_SEGMENT_DEFAULT_SIZE (32<<20)
63 
64 /*
65  * Shared header first in the shared memory segment.
66  */
67 typedef struct
68 {
69  atomic_int_fast64_t epoch;
70  atomic_int_fast64_t in_progress;
71  atomic_int_fast64_t directory_offset;
72  atomic_int_fast64_t error_offset;
73  atomic_int_fast64_t stats_offset;
75 
76 static inline uint64_t
77 stat_segment_offset (void *start, void *data)
78 {
79  return (char *) data - (char *) start;
80 }
81 
82 static inline void *
83 stat_segment_pointer (void *start, uint64_t offset)
84 {
85  return ((char *) start + offset);
86 }
87 
88 typedef struct
89 {
90  /* statistics segment */
96  ssize_t memory_size;
98  void *heap;
99  stat_segment_shared_header_t *shared_header; /* pointer to shared memory segment */
100  int memfd;
101 
104 
106 
107 #endif
Definition: stat_segment.h:49
stat_segment_main_t stat_segment_main
Definition: stat_segment.c:25
stat_segment_shared_header_t * shared_header
Definition: stat_segment.h:99
uint64_t index
Definition: stat_segment.h:54
stat_segment_directory_entry_t * directory_vector
Definition: stat_segment.h:92
unsigned long u64
Definition: types.h:89
static uint64_t stat_segment_offset(void *start, void *data)
Definition: stat_segment.h:77
unsigned char u8
Definition: types.h:56
atomic_int_fast64_t in_progress
Definition: stat_segment.h:70
uint64_t value
Definition: stat_segment.h:55
static void * stat_segment_pointer(void *start, uint64_t offset)
Definition: stat_segment.h:83
uint64_t offset
Definition: stat_segment.h:53
stat_segment_counter_t
Definition: stat_segment.h:24
u8 name[64]
Definition: memclnt.api:152
stat_directory_type_t
Definition: stat_client.h:24
uint64_t offset_vector
Definition: stat_segment.h:57
struct _socket_t clib_socket_t
atomic_int_fast64_t epoch
Definition: stat_segment.h:69
template key/value backing page structure
Definition: bihash_doc.h:44
uword * directory_vector_by_name
Definition: stat_segment.h:91
u64 uword
Definition: types.h:112
clib_socket_t * socket
Definition: stat_segment.h:94
atomic_int_fast64_t stats_offset
Definition: stat_segment.h:73
atomic_int_fast64_t error_offset
Definition: stat_segment.h:72
clib_spinlock_t * stat_segment_lockp
Definition: stat_segment.h:93
atomic_int_fast64_t directory_offset
Definition: stat_segment.h:71
stat_directory_type_t type
Definition: stat_segment.h:51