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Diffstat (limited to 'src/core/transport/chttp2/frame.h')
| -rw-r--r-- | src/core/transport/chttp2/frame.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/src/core/transport/chttp2/frame.h b/src/core/transport/chttp2/frame.h new file mode 100644 index 0000000000..7c0bbe026b --- /dev/null +++ b/src/core/transport/chttp2/frame.h @@ -0,0 +1,74 @@ +/* + * + * Copyright 2014, 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_TRANSPORT_CHTTP2_FRAME_H__ +#define __GRPC_INTERNAL_TRANSPORT_CHTTP2_FRAME_H__ + +#include <grpc/support/port_platform.h> + +/* Common definitions for frame handling in the chttp2 transport */ + +typedef enum { + GRPC_CHTTP2_PARSE_OK, + GRPC_CHTTP2_STREAM_ERROR, + GRPC_CHTTP2_CONNECTION_ERROR +} grpc_chttp2_parse_error; + +typedef struct { + gpr_uint8 end_of_stream; + gpr_uint8 need_flush_reads; + gpr_uint8 metadata_boundary; + gpr_uint8 ack_settings; + gpr_uint8 send_ping_ack; + gpr_uint8 process_ping_reply; + + gpr_uint32 window_update; +} grpc_chttp2_parse_state; + +#define GRPC_CHTTP2_FRAME_DATA 0 +#define GRPC_CHTTP2_FRAME_HEADER 1 +#define GRPC_CHTTP2_FRAME_CONTINUATION 9 +#define GRPC_CHTTP2_FRAME_RST_STREAM 3 +#define GRPC_CHTTP2_FRAME_SETTINGS 4 +#define GRPC_CHTTP2_FRAME_PING 6 +#define GRPC_CHTTP2_FRAME_WINDOW_UPDATE 8 + +#define GRPC_CHTTP2_MAX_PAYLOAD_LENGTH ((1 << 14) - 1) + +#define GRPC_CHTTP2_DATA_FLAG_END_STREAM 1 +#define GRPC_CHTTP2_FLAG_ACK 1 +#define GRPC_CHTTP2_DATA_FLAG_END_HEADERS 4 +#define GRPC_CHTTP2_DATA_FLAG_PADDED 8 +#define GRPC_CHTTP2_FLAG_HAS_PRIORITY 0x20 + +#endif /* __GRPC_INTERNAL_TRANSPORT_CHTTP2_FRAME_H__ */ |