vpp - Vector Packet Processing

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Diffstat (limited to 'src/vppinfra/heap.c')

0 files changed, 0 insertions, 0 deletions

/* * 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 <time.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; uint64_t timeout; } 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 uint64_t _time_now_nsec (void) { struct timespec ts; clock_gettime (CLOCK_REALTIME, &ts); return 1e9 * ts.tv_sec + ts.tv_nsec; } static inline void * stat_segment_adjust (stat_client_main_t * sm, void *data) { void *p = (void *) ((char *) sm->shared_header + ((char *) data - (char *) sm->shared_header->base)); if ((char *) p > (char *) sm->shared_header && (((char *) p + sizeof (p)) < ((char *) sm->shared_header + sm->memory_size))) return p; return 0; } /* * Returns 0 on success, -1 on failure (timeout) */ static inline int stat_segment_access_start (stat_segment_access_t * sa, stat_client_main_t * sm) { stat_segment_shared_header_t *shared_header = sm->shared_header; uint64_t max_time; sa->epoch = shared_header->epoch; if (sm->timeout) { max_time = _time_now_nsec () + sm->timeout; while (shared_header->in_progress != 0 && _time_now_nsec () < max_time) ; } else { while (shared_header->in_progress != 0) ; } sm->directory_vector = (stat_segment_directory_entry_t *) stat_segment_adjust (sm, (void *) sm->shared_header->directory_vector); if (sm->timeout) return _time_now_nsec () < max_time ? 0 : -1; return 0; } /* * set maximum number of nano seconds to wait for in_progress state */ static inline void stat_segment_set_timeout_nsec (stat_client_main_t * sm, uint64_t timeout) { sm->timeout = timeout; } /* * set maximum number of nano seconds to wait for in_progress state * this function can be called directly by module using shared stat * segment */ static inline void stat_segment_set_timeout (uint64_t timeout) { stat_client_main_t *sm = &stat_client_main; stat_segment_set_timeout_nsec (sm, timeout); } 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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