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/*
* stat_client.h - Library for access to VPP statistics segment
*
* Copyright (c) 2018 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.
*/
#ifndef included_stat_client_h
#define included_stat_client_h
#define STAT_VERSION_MAJOR 1
#define STAT_VERSION_MINOR 2
#include <stdint.h>
#include <unistd.h>
#include <vlib/counter_types.h>
#include <stdbool.h>
#include <vpp/stats/stat_segment_shared.h>
/* Default socket to exchange segment fd */
/* TODO: Get from runtime directory */
#define STAT_SEGMENT_SOCKET_FILE "/run/vpp/stats.sock"
#define STAT_SEGMENT_SOCKET_FILENAME "stats.sock"
typedef struct
{
char *name;
stat_directory_type_t type;
union
{
double scalar_value;
counter_t *error_vector;
counter_t **simple_counter_vec;
vlib_counter_t **combined_counter_vec;
uint8_t **name_vector;
};
} stat_segment_data_t;
typedef struct
{
uint64_t current_epoch;
stat_segment_shared_header_t *shared_header;
stat_segment_directory_entry_t *directory_vector;
ssize_t memory_size;
} stat_client_main_t;
extern stat_client_main_t stat_client_main;
stat_client_main_t *stat_client_get (void);
void stat_client_free (stat_client_main_t * sm);
int stat_segment_connect_r (const char *socket_name, stat_client_main_t * sm);
int stat_segment_connect (const char *socket_name);
void stat_segment_disconnect_r (stat_client_main_t * sm);
void stat_segment_disconnect (void);
uint8_t **stat_segment_string_vector (uint8_t ** string_vector,
const char *string);
int stat_segment_vec_len (void *vec);
void stat_segment_vec_free (void *vec);
uint32_t *stat_segment_ls_r (uint8_t ** patterns, stat_client_main_t * sm);
uint32_t *stat_segment_ls (uint8_t ** pattern);
stat_segment_data_t *stat_segment_dump_r (uint32_t * stats,
stat_client_main_t * sm);
stat_segment_data_t *stat_segment_dump (uint32_t * counter_vec);
stat_segment_data_t *stat_segment_dump_entry_r (uint32_t index,
stat_client_main_t * sm);
stat_segment_data_t *stat_segment_dump_entry (uint32_t index);
void stat_segment_data_free (stat_segment_data_t * res);
double stat_segment_heartbeat_r (stat_client_main_t * sm);
double stat_segment_heartbeat (void);
char *stat_segment_index_to_name_r (uint32_t index, stat_client_main_t * sm);
char *stat_segment_index_to_name (uint32_t index);
uint64_t stat_segment_version (void);
uint64_t stat_segment_version_r (stat_client_main_t * sm);
typedef struct
{
uint64_t epoch;
} stat_segment_access_t;
static inline void
stat_segment_access_start (stat_segment_access_t * sa,
stat_client_main_t * sm)
{
stat_segment_shared_header_t *shared_header = sm->shared_header;
sa->epoch = shared_header->epoch;
while (shared_header->in_progress != 0)
;
sm->directory_vector = (stat_segment_directory_entry_t *)
stat_segment_pointer (sm->shared_header,
sm->shared_header->directory_offset);
}
static inline bool
stat_segment_access_end (stat_segment_access_t * sa, stat_client_main_t * sm)
{
stat_segment_shared_header_t *shared_header = sm->shared_header;
if (shared_header->epoch != sa->epoch || shared_header->in_progress)
return false;
return true;
}
#endif /* included_stat_client_h */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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