mirror of https://github.com/grpc/grpc.git
yang-g
9 years ago
commit
5e700f3d1f
51 changed files with 498 additions and 237 deletions
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/*
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* |
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* Copyright 2015, Google Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following disclaimer |
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* in the documentation and/or other materials provided with the |
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* distribution. |
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* * Neither the name of Google Inc. nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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/* generates constant table for metadata.c */ |
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#include <stdio.h> |
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#include <string.h> |
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static unsigned char legal_bits[256 / 8]; |
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static void legal(int x) { |
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int byte = x / 8; |
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int bit = x % 8; |
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legal_bits[byte] |= 1 << bit; |
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} |
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static void dump(void) { |
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int i; |
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printf("static const gpr_uint8 legal_header_bits[256/8] = "); |
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for (i = 0; i < 256 / 8; i++) |
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printf("%c 0x%02x", i ? ',' : '{', legal_bits[i]); |
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printf(" };\n"); |
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} |
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static void clear(void) { memset(legal_bits, 0, sizeof(legal_bits)); } |
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int main(void) { |
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int i; |
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clear(); |
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for (i = 'a'; i <= 'z'; i++) legal(i); |
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for (i = '0'; i <= '9'; i++) legal(i); |
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legal('-'); |
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legal('_'); |
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dump(); |
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clear(); |
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for (i = 32; i <= 126; i++) legal(i); |
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dump(); |
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return 0; |
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} |
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