Built motion from commit 6a09e18b.|2.6.11

[motion2.git] / legacy-libs / grpc / deps / grpc / src / core / ext / transport / chttp2 / transport / incoming_metadata.h

diff --git a/legacy-libs/grpc/deps/grpc/src/core/ext/transport/chttp2/transport/incoming_metadata.h b/legacy-libs/grpc/deps/grpc/src/core/ext/transport/chttp2/transport/incoming_metadata.h
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+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * 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 GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_INCOMING_METADATA_H
+#define GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_INCOMING_METADATA_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/lib/transport/transport.h"
+
+struct grpc_chttp2_incoming_metadata_buffer {
+  explicit grpc_chttp2_incoming_metadata_buffer(grpc_core::Arena* arena)
+      : arena(arena) {
+    grpc_metadata_batch_init(&batch);
+    batch.deadline = GRPC_MILLIS_INF_FUTURE;
+  }
+  ~grpc_chttp2_incoming_metadata_buffer() {
+    grpc_metadata_batch_destroy(&batch);
+  }
+
+  static constexpr size_t kPreallocatedMDElem = 10;
+
+  grpc_core::Arena* arena;
+  size_t size = 0;   // total size of metadata.
+  size_t count = 0;  // minimum of count of metadata and kPreallocatedMDElem.
+  // These preallocated mdelems are used while count < kPreallocatedMDElem.
+  grpc_linked_mdelem preallocated_mdelems[kPreallocatedMDElem];
+  grpc_metadata_batch batch;
+};
+
+void grpc_chttp2_incoming_metadata_buffer_publish(
+    grpc_chttp2_incoming_metadata_buffer* buffer, grpc_metadata_batch* batch);
+
+grpc_error* grpc_chttp2_incoming_metadata_buffer_add(
+    grpc_chttp2_incoming_metadata_buffer* buffer,
+    grpc_mdelem elem) GRPC_MUST_USE_RESULT;
+grpc_error* grpc_chttp2_incoming_metadata_buffer_replace_or_add(
+    grpc_chttp2_incoming_metadata_buffer* buffer,
+    grpc_mdelem elem) GRPC_MUST_USE_RESULT;
+void grpc_chttp2_incoming_metadata_buffer_set_deadline(
+    grpc_chttp2_incoming_metadata_buffer* buffer, grpc_millis deadline);
+
+#endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_INCOMING_METADATA_H */