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+/*
+ * Copyright (c) 2015 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_stats_h__
+#define __included_stats_h__
+
+#include <time.h>
+#include <vlib/vlib.h>
+#include <vnet/vnet.h>
+#include <vnet/interface.h>
+#include <pthread.h>
+#include <vlib/threads.h>
+#include <vnet/fib/fib_table.h>
+#include <vlib/unix/unix.h>
+#include <vlibmemory/api.h>
+#include <vlibmemory/unix_shared_memory_queue.h>
+#include <vlibapi/api_helper_macros.h>
+
+typedef struct
+{
+ volatile u32 lock;
+ volatile u32 release_hint;
+ u32 thread_index;
+ u32 count;
+ int tag;
+} data_structure_lock_t;
+
+/**
+ * @brief stats request registration indexes
+ *
+ */
+/* from .../vnet/vnet/ip/lookup.c. Yuck */
+typedef CLIB_PACKED (struct
+ {
+ ip4_address_t address;
+u32 address_length: 6;
+u32 index: 26;
+ }) ip4_route_t;
+
+/* see interface.api */
+typedef struct
+{
+ u32 sw_if_index;
+ u64 drop;
+ u64 punt;
+ u64 rx_ip4;
+ u64 rx_ip6;
+ u64 rx_no_buffer;
+ u64 rx_miss;
+ u64 rx_error;
+ u64 tx_error;
+ u64 rx_mpls;
+} vnet_simple_counter_t;
+
+typedef struct
+{
+ u32 sw_if_index;
+ u64 rx_packets; /**< packet counter */
+ u64 rx_bytes; /**< byte counter */
+ u64 tx_packets; /**< packet counter */
+ u64 tx_bytes; /**< byte counter */
+} vnet_combined_counter_t;
+
+typedef struct
+{
+ ip6_address_t address;
+ u32 address_length;
+ u32 index;
+} ip6_route_t;
+
+
+typedef struct
+{
+ ip4_route_t *ip4routes;
+ ip6_route_t *ip6routes;
+ fib_table_t **fibs;
+ hash_pair_t **pvec;
+ uword *results;
+} do_ip46_fibs_t;
+
+typedef struct
+{
+ u16 msg_id;
+ u32 size;
+ u32 client_index;
+ u32 context;
+ i32 retval;
+} client_registration_reply_t;
+
+typedef enum
+{
+#define stats_reg(n) IDX_##n,
+#include <vpp/stats/stats.reg>
+#undef stats_reg
+ STATS_REG_N_IDX,
+} stats_reg_index_t;
+
+typedef struct
+{
+ //Standard client information
+ uword *client_hash;
+ vpe_client_registration_t *clients;
+ u32 item;
+
+} vpe_client_stats_registration_t;
+
+
+typedef struct
+{
+ void *mheap;
+ pthread_t thread_self;
+ pthread_t thread_handle;
+
+ u32 stats_poll_interval_in_seconds;
+ u32 enable_poller;
+
+ /*
+ * stats_registrations is a vector, indexed by
+ * IDX_xxxx_COUNTER generated for each streaming
+ * stat a client can register for. (see stats.reg)
+ *
+ * The values in the vector refer to pools.
+ *
+ * The pool is of type vpe_client_stats_registration_t
+ *
+ * This typedef consists of:
+ *
+ * u32 item: This is the instance of the IDX_xxxx_COUNTER a
+ * client is interested in.
+ * vpe_client_registration_t *clients: The list of clients interested.
+ *
+ * e.g.
+ * stats_registrations[IDX_INTERFACE_SIMPLE_COUNTERS] refers to a pool
+ * containing elements:
+ *
+ * u32 item = sw_if_index1
+ * clients = ["clienta","clientb"]
+ *
+ * When clients == NULL the pool element is freed. When the pool is empty
+ *
+ * ie
+ * 0 == pool_elts(stats_registrations[IDX_INTERFACE_SIMPLE_COUNTERS]
+ *
+ * then there is no need to process INTERFACE_SIMPLE_COUNTERS
+ *
+ * Note that u32 item = ~0 is the simple case for ALL interfaces or fibs.
+ *
+ */
+
+ uword **stats_registration_hash;
+ vpe_client_stats_registration_t **stats_registrations;
+
+ /* control-plane data structure lock */
+ data_structure_lock_t *data_structure_lock;
+
+ /* bail out of FIB walk if set */
+ clib_longjmp_t jmp_buf;
+
+ /* Vectors for Distribution funcs: do_ip4_fibs and do_ip6_fibs. */
+ do_ip46_fibs_t do_ip46_fibs;
+
+ /*
+ Working vector vars so as to not thrash memory allocator.
+ Has effect of making "static"
+ */
+ vpe_client_stats_registration_t **regs_tmp;
+ vpe_client_registration_t **clients_tmp;
+
+ /* convenience */
+ vlib_main_t *vlib_main;
+ vnet_main_t *vnet_main;
+ vnet_interface_main_t *interface_main;
+ api_main_t *api_main;
+} stats_main_t;
+
+stats_main_t stats_main;
+
+void dslock (stats_main_t * sm, int release_hint, int tag);
+void dsunlock (stats_main_t * sm);
+
+#endif /* __included_stats_h__ */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */