2 * Copyright (c) 2016 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:
7 * http://www.apache.org/licenses/LICENSE-2.0
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.
15 #include <vlib/vlib.h>
17 #include <vppinfra/serialize.h>
20 * Serialize a vlib_node_main_t. Appends the result to vector.
21 * Pass 0 to create a new vector, use vec_reset_length(vector)
22 * to recycle a vector / avoid memory allocation, etc.
23 * Switch heaps before/after to serialize into API client shared memory.
26 u8 * vlib_node_serialize (vlib_node_main_t *nm, u8 * vector)
28 serialize_main_t _sm, *sm=&_sm;
33 serialize_open_vector (sm, vector);
35 serialize_likely_small_unsigned_integer (sm, vec_len(nm->nodes));
36 for (i = 0; i < vec_len (nm->nodes); i++)
39 vec_reset_length (cstemp);
40 cstemp = vec_dup(node->name);
42 serialize_cstring (sm, (char *)cstemp);
43 serialize_likely_small_unsigned_integer (sm, vec_len(node->next_nodes));
44 for (j = 0; j < vec_len (node->next_nodes); j++)
45 serialize_likely_small_unsigned_integer (sm, node->next_nodes[j]);
49 return (serialize_close_vector (sm));
52 vlib_node_t ** vlib_node_unserialize (u8 * vector)
54 serialize_main_t _sm, *sm=&_sm;
57 vlib_node_t ** nodes = 0;
60 serialize_open_vector (sm, vector);
62 nnodes = unserialize_likely_small_unsigned_integer (sm);
64 vec_validate (nodes, nnodes-1);
66 for (i = 0; i < nnodes; i++)
69 vec_validate (node,0);
71 unserialize_cstring (sm, (char **)&node->name);
73 nnexts = unserialize_likely_small_unsigned_integer (sm);
75 vec_validate (node->next_nodes, nnexts-1);
76 for (j = 0; j < vec_len (node->next_nodes); j++)
78 unserialize_likely_small_unsigned_integer (sm);
87 test_node_serialize_command_fn (vlib_main_t * vm,
88 unformat_input_t * input,
89 vlib_cli_command_t * cmd)
91 vlib_node_main_t * nm = &vm->node_main;
95 vlib_node_t * next_node;
99 * Keep the number of memcpy ops to a minimum (e.g. 1).
100 * The current size of the serialized vector is
103 vec_validate (vector, 4095);
104 vec_reset_length (vector);
106 vector = vlib_node_serialize (nm, vector);
108 nodes = vlib_node_unserialize (vector);
112 for (i = 0; i < vec_len(nodes); i++)
116 vlib_cli_output (vm, "[%d] %s", i, node->name);
117 for (j = 0; j < vec_len (node->next_nodes); j++)
119 if (node->next_nodes[j] != ~0)
120 next_node = nodes[node->next_nodes[j]];
121 vlib_cli_output (vm, " [%d] %s", j, next_node->name);
125 for (i = 0; i < vec_len(nodes); i++)
127 vec_free (nodes[i]->name);
128 vec_free (nodes[i]->next_nodes);
136 VLIB_CLI_COMMAND (test_node_serialize_node, static) = {
137 .path = "test node serialize",
138 .short_help = "test node serialize",
139 .function = test_node_serialize_command_fn,