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_add(grpc_chttp2_incoming_metadata_buffer * buffer,grpc_mdelem elem)30 grpc_error* grpc_chttp2_incoming_metadata_buffer_add(
31 grpc_chttp2_incoming_metadata_buffer* buffer, grpc_mdelem elem) {
32 buffer->size += GRPC_MDELEM_LENGTH(elem);
33 grpc_linked_mdelem* storage;
34 if (buffer->count < buffer->kPreallocatedMDElem) {
35 storage = &buffer->preallocated_mdelems[buffer->count];
36 buffer->count++;
37 } else {
38 storage = static_cast<grpc_linked_mdelem*>(
39 buffer->arena->Alloc(sizeof(grpc_linked_mdelem)));
40 }
41 storage->md = elem;
42 return grpc_metadata_batch_link_tail(&buffer->batch, storage);
43 }
44
grpc_chttp2_incoming_metadata_buffer_replace_or_add(grpc_chttp2_incoming_metadata_buffer * buffer,grpc_mdelem elem)45 grpc_error* grpc_chttp2_incoming_metadata_buffer_replace_or_add(
46 grpc_chttp2_incoming_metadata_buffer* buffer, grpc_mdelem elem) {
47 for (grpc_linked_mdelem* l = buffer->batch.list.head; l != nullptr;
48 l = l->next) {
49 if (grpc_slice_eq(GRPC_MDKEY(l->md), GRPC_MDKEY(elem))) {
50 GRPC_MDELEM_UNREF(l->md);
51 l->md = elem;
52 return GRPC_ERROR_NONE;
53 }
54 }
55 return grpc_chttp2_incoming_metadata_buffer_add(buffer, elem);
56 }
57
grpc_chttp2_incoming_metadata_buffer_set_deadline(grpc_chttp2_incoming_metadata_buffer * buffer,grpc_millis deadline)58 void grpc_chttp2_incoming_metadata_buffer_set_deadline(
59 grpc_chttp2_incoming_metadata_buffer* buffer, grpc_millis deadline) {
60 buffer->batch.deadline = deadline;
61 }
62
grpc_chttp2_incoming_metadata_buffer_publish(grpc_chttp2_incoming_metadata_buffer * buffer,grpc_metadata_batch * batch)63 void grpc_chttp2_incoming_metadata_buffer_publish(
64 grpc_chttp2_incoming_metadata_buffer* buffer, grpc_metadata_batch* batch) {
65 grpc_metadata_batch_move(&buffer->batch, batch);
66 }
67