1 /*
2 *
3 * Copyright 2015 gRPC authors.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 */
18
19 #include <grpc/support/port_platform.h>
20
21 #include "src/core/ext/transport/chttp2/transport/incoming_metadata.h"
22
23 #include <string.h>
24
25 #include "src/core/ext/transport/chttp2/transport/internal.h"
26
27 #include <grpc/support/alloc.h>
28 #include <grpc/support/log.h>
29
grpc_chttp2_incoming_metadata_buffer_init(grpc_chttp2_incoming_metadata_buffer * buffer,gpr_arena * arena)30 void grpc_chttp2_incoming_metadata_buffer_init(
31 grpc_chttp2_incoming_metadata_buffer* buffer, gpr_arena* arena) {
32 buffer->arena = arena;
33 grpc_metadata_batch_init(&buffer->batch);
34 buffer->batch.deadline = GRPC_MILLIS_INF_FUTURE;
35 }
36
grpc_chttp2_incoming_metadata_buffer_destroy(grpc_chttp2_incoming_metadata_buffer * buffer)37 void grpc_chttp2_incoming_metadata_buffer_destroy(
38 grpc_chttp2_incoming_metadata_buffer* buffer) {
39 grpc_metadata_batch_destroy(&buffer->batch);
40 }
41
grpc_chttp2_incoming_metadata_buffer_add(grpc_chttp2_incoming_metadata_buffer * buffer,grpc_mdelem elem)42 grpc_error* grpc_chttp2_incoming_metadata_buffer_add(
43 grpc_chttp2_incoming_metadata_buffer* buffer, grpc_mdelem elem) {
44 buffer->size += GRPC_MDELEM_LENGTH(elem);
45 return grpc_metadata_batch_add_tail(
46 &buffer->batch,
47 static_cast<grpc_linked_mdelem*>(
48 gpr_arena_alloc(buffer->arena, sizeof(grpc_linked_mdelem))),
49 elem);
50 }
51
grpc_chttp2_incoming_metadata_buffer_replace_or_add(grpc_chttp2_incoming_metadata_buffer * buffer,grpc_mdelem elem)52 grpc_error* grpc_chttp2_incoming_metadata_buffer_replace_or_add(
53 grpc_chttp2_incoming_metadata_buffer* buffer, grpc_mdelem elem) {
54 for (grpc_linked_mdelem* l = buffer->batch.list.head; l != nullptr;
55 l = l->next) {
56 if (grpc_slice_eq(GRPC_MDKEY(l->md), GRPC_MDKEY(elem))) {
57 GRPC_MDELEM_UNREF(l->md);
58 l->md = elem;
59 return GRPC_ERROR_NONE;
60 }
61 }
62 return grpc_chttp2_incoming_metadata_buffer_add(buffer, elem);
63 }
64
grpc_chttp2_incoming_metadata_buffer_set_deadline(grpc_chttp2_incoming_metadata_buffer * buffer,grpc_millis deadline)65 void grpc_chttp2_incoming_metadata_buffer_set_deadline(
66 grpc_chttp2_incoming_metadata_buffer* buffer, grpc_millis deadline) {
67 buffer->batch.deadline = deadline;
68 }
69
grpc_chttp2_incoming_metadata_buffer_publish(grpc_chttp2_incoming_metadata_buffer * buffer,grpc_metadata_batch * batch)70 void grpc_chttp2_incoming_metadata_buffer_publish(
71 grpc_chttp2_incoming_metadata_buffer* buffer, grpc_metadata_batch* batch) {
72 grpc_metadata_batch_move(&buffer->batch, batch);
73 }
74