Initial checkin of gRPC to third_party/

third_party/grpc/src/core/transport/chttp2/frame_data.h

Index: third_party/grpc/src/core/transport/chttp2/frame_data.h
diff --git a/third_party/grpc/src/core/transport/chttp2/frame_data.h b/third_party/grpc/src/core/transport/chttp2/frame_data.h
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index 0000000000000000000000000000000000000000..936b7a25899cb6e73a0749cc8b61ed2d85e40b3d
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+++ b/third_party/grpc/src/core/transport/chttp2/frame_data.h
@@ -0,0 +1,101 @@
+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef GRPC_INTERNAL_CORE_TRANSPORT_CHTTP2_FRAME_DATA_H
+#define GRPC_INTERNAL_CORE_TRANSPORT_CHTTP2_FRAME_DATA_H
+
+/* Parser for GRPC streams embedded in DATA frames */
+
+#include "src/core/iomgr/exec_ctx.h"
+#include <grpc/support/slice.h>
+#include <grpc/support/slice_buffer.h>
+#include "src/core/transport/byte_stream.h"
+#include "src/core/transport/chttp2/frame.h"
+
+typedef enum {
+  GRPC_CHTTP2_DATA_FH_0,
+  GRPC_CHTTP2_DATA_FH_1,
+  GRPC_CHTTP2_DATA_FH_2,
+  GRPC_CHTTP2_DATA_FH_3,
+  GRPC_CHTTP2_DATA_FH_4,
+  GRPC_CHTTP2_DATA_FRAME
+} grpc_chttp2_stream_state;
+
+typedef struct grpc_chttp2_incoming_byte_stream
+    grpc_chttp2_incoming_byte_stream;
+
+typedef struct grpc_chttp2_incoming_frame_queue {
+  grpc_chttp2_incoming_byte_stream *head;
+  grpc_chttp2_incoming_byte_stream *tail;
+} grpc_chttp2_incoming_frame_queue;
+
+typedef struct {
+  grpc_chttp2_stream_state state;
+  uint8_t is_last_frame;
+  uint8_t frame_type;
+  uint32_t frame_size;
+
+  int is_frame_compressed;
+  grpc_chttp2_incoming_frame_queue incoming_frames;
+  grpc_chttp2_incoming_byte_stream *parsing_frame;
+} grpc_chttp2_data_parser;
+
+void grpc_chttp2_incoming_frame_queue_merge(
+    grpc_chttp2_incoming_frame_queue *head_dst,
+    grpc_chttp2_incoming_frame_queue *tail_src);
+grpc_byte_stream *grpc_chttp2_incoming_frame_queue_pop(
+    grpc_chttp2_incoming_frame_queue *q);
+
+/* initialize per-stream state for data frame parsing */
+grpc_chttp2_parse_error grpc_chttp2_data_parser_init(
+    grpc_chttp2_data_parser *parser);
+
+void grpc_chttp2_data_parser_destroy(grpc_exec_ctx *exec_ctx,
+                                     grpc_chttp2_data_parser *parser);
+
+/* start processing a new data frame */
+grpc_chttp2_parse_error grpc_chttp2_data_parser_begin_frame(
+    grpc_chttp2_data_parser *parser, uint8_t flags);
+
+/* handle a slice of a data frame - is_last indicates the last slice of a
+   frame */
+grpc_chttp2_parse_error grpc_chttp2_data_parser_parse(
+    grpc_exec_ctx *exec_ctx, void *parser,
+    grpc_chttp2_transport_parsing *transport_parsing,
+    grpc_chttp2_stream_parsing *stream_parsing, gpr_slice slice, int is_last);
+
+void grpc_chttp2_encode_data(uint32_t id, gpr_slice_buffer *inbuf,
+                             uint32_t write_bytes, int is_eof,
+                             gpr_slice_buffer *outbuf);
+
+#endif /* GRPC_INTERNAL_CORE_TRANSPORT_CHTTP2_FRAME_DATA_H */