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Diffstat (limited to 'src/core/lib/transport/chttp2/varint.h')
| -rw-r--r-- | src/core/lib/transport/chttp2/varint.h | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/src/core/lib/transport/chttp2/varint.h b/src/core/lib/transport/chttp2/varint.h deleted file mode 100644 index e4a0ae3c22..0000000000 --- a/src/core/lib/transport/chttp2/varint.h +++ /dev/null @@ -1,75 +0,0 @@ -/* - * - * Copyright 2015-2016, 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_CORE_LIB_TRANSPORT_CHTTP2_VARINT_H -#define GRPC_CORE_LIB_TRANSPORT_CHTTP2_VARINT_H - -#include <grpc/support/port_platform.h> - -/* Helpers for hpack varint encoding */ - -/* length of a value that needs varint tail encoding (it's bigger than can be - bitpacked into the opcode byte) - returned value includes the length of the - opcode byte */ -uint32_t grpc_chttp2_hpack_varint_length(uint32_t tail_value); - -void grpc_chttp2_hpack_write_varint_tail(uint32_t tail_value, uint8_t* target, - uint32_t tail_length); - -/* maximum value that can be bitpacked with the opcode if the opcode has a - prefix - of length prefix_bits */ -#define GRPC_CHTTP2_MAX_IN_PREFIX(prefix_bits) \ - ((uint32_t)((1 << (8 - (prefix_bits))) - 1)) - -/* length required to bitpack a value */ -#define GRPC_CHTTP2_VARINT_LENGTH(n, prefix_bits) \ - ((n) < GRPC_CHTTP2_MAX_IN_PREFIX(prefix_bits) \ - ? 1u \ - : grpc_chttp2_hpack_varint_length( \ - (n)-GRPC_CHTTP2_MAX_IN_PREFIX(prefix_bits))) - -#define GRPC_CHTTP2_WRITE_VARINT(n, prefix_bits, prefix_or, target, length) \ - do { \ - uint8_t* tgt = target; \ - if ((length) == 1u) { \ - (tgt)[0] = (uint8_t)((prefix_or) | (n)); \ - } else { \ - (tgt)[0] = \ - (prefix_or) | (uint8_t)GRPC_CHTTP2_MAX_IN_PREFIX(prefix_bits); \ - grpc_chttp2_hpack_write_varint_tail( \ - (n)-GRPC_CHTTP2_MAX_IN_PREFIX(prefix_bits), (tgt) + 1, (length)-1); \ - } \ - } while (0) - -#endif /* GRPC_CORE_LIB_TRANSPORT_CHTTP2_VARINT_H */ |