diff options
Diffstat (limited to 'vlib-api/vlibapi/node_serialize.c')
| -rw-r--r-- | vlib-api/vlibapi/node_serialize.c | 399 |
1 files changed, 0 insertions, 399 deletions
diff --git a/vlib-api/vlibapi/node_serialize.c b/vlib-api/vlibapi/node_serialize.c deleted file mode 100644 index 4dc1a7d2272..00000000000 --- a/vlib-api/vlibapi/node_serialize.c +++ /dev/null @@ -1,399 +0,0 @@ -/* - * Copyright (c) 2016 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. - */ -#include <vlib/vlib.h> - -#include <vppinfra/serialize.h> - -extern void vl_msg_api_barrier_sync (void); -extern void vl_msg_api_barrier_release (void); - -/* serialized representation of state strings */ - -#define foreach_state_string_code \ -_(STATE_DONE, "done") \ -_(STATE_DISABLED, "disabled") \ -_(STATE_TIME_WAIT, "time wait") \ -_(STATE_EVENT_WAIT, "event wait") \ -_(STATE_ANY_WAIT, "any wait") \ -_(STATE_POLLING, "polling") \ -_(STATE_INTERRUPT_WAIT, "interrupt wait") \ -_(STATE_INTERNAL, "internal") - -typedef enum -{ -#define _(a,b) a, - foreach_state_string_code -#undef _ -} state_string_enum_t; - -static char *state_strings[] = { -#define _(a,b) b, - foreach_state_string_code -#undef _ -}; - -/* - * Serialize a vlib_node_main_t. Appends the result to vector. - * Pass 0 to create a new vector, use vec_reset_length(vector) - * to recycle a vector / avoid memory allocation, etc. - * Switch heaps before/after to serialize into API client shared memory. - */ - -u8 * -vlib_node_serialize (vlib_node_main_t * nm, u8 * vector, - u32 max_threads, int include_nexts, int include_stats) -{ - serialize_main_t _sm, *sm = &_sm; - vlib_main_t *vm = vlib_get_main (); - vlib_node_t *n; - static vlib_node_t ***node_dups; - vlib_node_t **nodes; - static vlib_main_t **stat_vms; - vlib_main_t *stat_vm; - u8 *namep; - u32 name_bytes; - uword i, j, k; - u64 l, v, c, d; - state_string_enum_t state_code; - u32 threads_to_serialize; - - vec_reset_length (node_dups); - - if (vec_len (stat_vms) == 0) - { - if (vec_len (vlib_mains) == 0) - vec_add1 (stat_vms, vm); - else - { - for (i = 0; i < vec_len (vlib_mains); i++) - { - stat_vm = vlib_mains[i]; - if (stat_vm) - vec_add1 (stat_vms, stat_vm); - } - } - } - - threads_to_serialize = clib_min (max_threads, vec_len (stat_vms)); - - /* - * Barrier sync across stats scraping. - * Otherwise, the counts will be grossly inaccurate. - */ - vl_msg_api_barrier_sync (); - - for (j = 0; j < threads_to_serialize; j++) - { - stat_vm = stat_vms[j]; - nm = &stat_vm->node_main; - - if (include_stats) - { - for (i = 0; i < vec_len (nm->nodes); i++) - { - n = nm->nodes[i]; - vlib_node_sync_stats (stat_vm, n); - } - } - - nodes = vec_dup (nm->nodes); - - vec_add1 (node_dups, nodes); - } - vl_msg_api_barrier_release (); - - serialize_open_vector (sm, vector); - - serialize_likely_small_unsigned_integer (sm, vec_len (stat_vms)); - - for (j = 0; j < vec_len (stat_vms); j++) - { - stat_vm = stat_vms[j]; - nodes = node_dups[j]; - - serialize_likely_small_unsigned_integer (sm, vec_len (nodes)); - - for (i = 0; i < vec_len (nodes); i++) - { - n = nodes[i]; - - l = n->stats_total.clocks - n->stats_last_clear.clocks; - v = n->stats_total.vectors - n->stats_last_clear.vectors; - c = n->stats_total.calls - n->stats_last_clear.calls; - d = n->stats_total.suspends - n->stats_last_clear.suspends; - - state_code = STATE_INTERNAL; - - if (n->type == VLIB_NODE_TYPE_PROCESS) - { - vlib_process_t *p = vlib_get_process_from_node (vm, n); - - switch (p->flags - & (VLIB_PROCESS_IS_SUSPENDED_WAITING_FOR_CLOCK - | VLIB_PROCESS_IS_SUSPENDED_WAITING_FOR_EVENT)) - { - default: - if (!(p->flags & VLIB_PROCESS_IS_RUNNING)) - state_code = STATE_DONE; - break; - - case VLIB_PROCESS_IS_SUSPENDED_WAITING_FOR_CLOCK: - state_code = STATE_TIME_WAIT; - break; - - case VLIB_PROCESS_IS_SUSPENDED_WAITING_FOR_EVENT: - state_code = STATE_EVENT_WAIT; - break; - - case (VLIB_PROCESS_IS_SUSPENDED_WAITING_FOR_EVENT | VLIB_PROCESS_IS_SUSPENDED_WAITING_FOR_CLOCK): - state_code = - STATE_ANY_WAIT; - break; - } - } - else if (n->type != VLIB_NODE_TYPE_INTERNAL) - { - state_code = STATE_POLLING; - if (n->state == VLIB_NODE_STATE_DISABLED) - state_code = STATE_DISABLED; - else if (n->state == VLIB_NODE_STATE_INTERRUPT) - state_code = STATE_INTERRUPT_WAIT; - } - - /* See unserialize_cstring */ - name_bytes = vec_len (n->name); - serialize_likely_small_unsigned_integer (sm, name_bytes); - namep = serialize_get (sm, name_bytes); - memcpy (namep, n->name, name_bytes); - - serialize_likely_small_unsigned_integer (sm, (u64) state_code); - serialize_likely_small_unsigned_integer (sm, n->type); - - if (include_nexts) - { - serialize_likely_small_unsigned_integer - (sm, vec_len (n->next_nodes)); - for (k = 0; k < vec_len (n->next_nodes); k++) - serialize_likely_small_unsigned_integer (sm, - n->next_nodes[k]); - } - else - serialize_likely_small_unsigned_integer (sm, 0); - - if (include_stats) - { - /* stats present */ - serialize_likely_small_unsigned_integer (sm, 1); - /* total clocks */ - serialize_integer (sm, l, 8); - /* Total calls */ - serialize_integer (sm, c, 8); - /* Total vectors */ - serialize_integer (sm, v, 8); - /* Total suspends */ - serialize_integer (sm, d, 8); - } - else /* no stats */ - serialize_likely_small_unsigned_integer (sm, 0); - } - vec_free (nodes); - } - return (serialize_close_vector (sm)); -} - -vlib_node_t *** -vlib_node_unserialize (u8 * vector) -{ - serialize_main_t _sm, *sm = &_sm; - u32 nnodes, nnexts; - u32 nstat_vms; - vlib_node_t *node; - vlib_node_t **nodes; - vlib_node_t ***nodes_by_thread = 0; - int i, j, k; - u64 l, v, c, d; - state_string_enum_t state_code; - int stats_present; - - serialize_open_vector (sm, vector); - - nstat_vms = unserialize_likely_small_unsigned_integer (sm); - - vec_validate (nodes_by_thread, nstat_vms - 1); - _vec_len (nodes_by_thread) = 0; - - for (i = 0; i < nstat_vms; i++) - { - nnodes = unserialize_likely_small_unsigned_integer (sm); - - nodes = 0; - vec_validate (nodes, nnodes - 1); - vec_add1 (nodes_by_thread, nodes); - - for (j = 0; j < nnodes; j++) - { - node = 0; - vec_validate (node, 0); - nodes[j] = node; - - unserialize_cstring (sm, (char **) &(node->name)); - state_code = unserialize_likely_small_unsigned_integer (sm); - node->state_string = (u8 *) state_strings[state_code]; - - node->type = unserialize_likely_small_unsigned_integer (sm); - nnexts = unserialize_likely_small_unsigned_integer (sm); - if (nnexts > 0) - vec_validate (node->next_nodes, nnexts - 1); - for (k = 0; k < nnexts; k++) - node->next_nodes[k] = - unserialize_likely_small_unsigned_integer (sm); - - stats_present = unserialize_likely_small_unsigned_integer (sm); - - if (stats_present) - { - /* total clocks */ - unserialize_integer (sm, &l, 8); - node->stats_total.clocks = l; - node->stats_last_clear.clocks = 0; - - /* Total calls */ - unserialize_integer (sm, &c, 8); - node->stats_total.calls = c; - - /* Total vectors */ - unserialize_integer (sm, &v, 8); - node->stats_total.vectors = v; - - /* Total suspends */ - unserialize_integer (sm, &d, 8); - node->stats_total.suspends = d; - } - } - } - return nodes_by_thread; -} - -#if CLIB_DEBUG > 0 - -static clib_error_t * -test_node_serialize_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) -{ - vlib_node_main_t *nm = &vm->node_main; - u8 *vector = 0; - vlib_node_t ***nodes_by_thread; - vlib_node_t **nodes; - vlib_node_t *node; - vlib_node_t *next_node; - int i, j, k; - u32 max_threads = (u32) ~ 0; - int include_nexts = 0; - int include_stats = 0; - - while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) - { - if (unformat (input, "max-threads %d", &max_threads)) - ; - else if (unformat (input, "stats")) - include_stats = 1; - else if (unformat (input, "nexts")) - include_nexts = 1; - else - break; - } - - /* - * Keep the number of memcpy ops to a minimum (e.g. 1). - * The current size of the serialized vector is - * slightly under 4K. - */ - vec_validate (vector, 16383); - vec_reset_length (vector); - - vector = vlib_node_serialize (nm, vector, max_threads, - include_nexts, include_stats); - - vlib_cli_output (vm, "result vector %d bytes", vec_len (vector)); - - nodes_by_thread = vlib_node_unserialize (vector); - - vec_free (vector); - - for (i = 0; i < vec_len (nodes_by_thread); i++) - { - nodes = nodes_by_thread[i]; - - vlib_cli_output (vm, "thread %d", i); - - for (j = 0; j < vec_len (nodes); j++) - { - node = nodes[j]; - - vlib_cli_output (vm, "[%d] %s state %s", j, node->name, - node->state_string); - - vlib_cli_output - (vm, " clocks %lld calls %lld suspends" - " %lld vectors %lld", - node->stats_total.clocks, - node->stats_total.calls, - node->stats_total.suspends, node->stats_total.vectors); - - for (k = 0; k < vec_len (node->next_nodes); k++) - { - if (node->next_nodes[k] != ~0) - { - next_node = nodes[node->next_nodes[k]]; - vlib_cli_output (vm, " [%d] %s", k, next_node->name); - } - } - } - } - - for (j = 0; j < vec_len (nodes_by_thread); j++) - { - nodes = nodes_by_thread[j]; - - for (i = 0; i < vec_len (nodes); i++) - { - vec_free (nodes[i]->name); - vec_free (nodes[i]->next_nodes); - vec_free (nodes[i]); - } - vec_free (nodes); - } - vec_free (nodes_by_thread); - - return 0; -} - -/* *INDENT-OFF* */ -VLIB_CLI_COMMAND (test_node_serialize_node, static) = { - .path = "test node serialize", - .short_help = "test node serialize [max-threads NN] nexts stats", - .function = test_node_serialize_command_fn, -}; -/* *INDENT-ON* */ -#endif - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |