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-rw-r--r--web/server/h2o/libh2o/deps/golombset/README.md26
-rw-r--r--web/server/h2o/libh2o/deps/golombset/golombset.h162
-rw-r--r--web/server/h2o/libh2o/deps/golombset/test.c58
3 files changed, 0 insertions, 246 deletions
diff --git a/web/server/h2o/libh2o/deps/golombset/README.md b/web/server/h2o/libh2o/deps/golombset/README.md
deleted file mode 100644
index 5bebfb774..000000000
--- a/web/server/h2o/libh2o/deps/golombset/README.md
+++ /dev/null
@@ -1,26 +0,0 @@
-golombset
-===
-
-Golombset is a pure-C, header-file-only implementation of Golomb coded set, which is an compressed form of [Bloom filter](https://en.wikipedia.org/Bloom_filter).
-
-It is compresses every zero-range of Bloom filter (e.g. `0000...1`) using [Golomb coding](https://en.wikipedia.org/wiki/Golomb_coding).
-Please refer to [Golomb-coded sets: smaller than Bloom filters](http://giovanni.bajo.it/post/47119962313/golomb-coded-sets-smaller-than-bloom-filters) for more information about the algorithm.
-
-API
----
-
-__`int golombset_encode(unsigned fixed_bits, const unsigned *keys, size_t num_keys, void *buf, size_t *bufsize);`__
-
-The function encodes an pre-sorted array of keys into given buffer.
-
-The function returns zero if successful, or -1 if otherwise (e.g. the size of the buffer is not sufficient).
-`bufsize` is an input-output parameter.
-Upon calling the function the value of the pointer must specify the size of the buffer being supplied.
-When the function returns successfully, the value is updated the length of the bytes actually used to store the encoded data.
-
-__`int golombset_decode(unsigned fixed_bits, const void *buf, size_t bufsize, unsigned *keys, size_t *num_keys);`__
-
-The function decodes the compressed data into an array of keys.
-
-The function returns zero if successful, or -1 if the size of the `keys` buffer is too small (specified by `*num_keys` when the function is being called).
-Upon successful return, the number of keys decoded will be stored in `*num_keys`.
diff --git a/web/server/h2o/libh2o/deps/golombset/golombset.h b/web/server/h2o/libh2o/deps/golombset/golombset.h
deleted file mode 100644
index 207f0d61c..000000000
--- a/web/server/h2o/libh2o/deps/golombset/golombset.h
+++ /dev/null
@@ -1,162 +0,0 @@
-/*
- * Copyright (c) 2015 Kazuho Oku
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-#ifndef GOLOMBSET_H
-#define GOLOMBSET_H
-
-#include <inttypes.h>
-
-struct st_golombset_encode_t {
- unsigned char *dst;
- unsigned char *dst_max;
- unsigned dst_shift;
-};
-
-struct st_golombset_decode_t {
- const unsigned char *src;
- const unsigned char *src_max;
- unsigned src_shift;
-};
-
-static int golombset_encode_bit(struct st_golombset_encode_t *ctx, int bit)
-{
- if (ctx->dst_shift == 0) {
- if (++ctx->dst == ctx->dst_max)
- return -1;
- *ctx->dst = 0;
- ctx->dst_shift = 8;
- }
- --ctx->dst_shift;
- if (bit)
- *ctx->dst |= 1 << ctx->dst_shift;
- return 0;
-}
-
-static int golombset_encode_bits(struct st_golombset_encode_t *ctx, unsigned bits, uint64_t value)
-{
- if (bits != 0) {
- do {
- --bits;
- if (golombset_encode_bit(ctx, (value >> bits) & 1) != 0)
- return -1;
- } while (bits != 0);
- }
- return 0;
-}
-
-static int golombset_decode_bit(struct st_golombset_decode_t *ctx)
-{
- if (ctx->src_shift == 0) {
- if (++ctx->src == ctx->src_max)
- return -1;
- ctx->src_shift = 8;
- }
- return (*ctx->src >> --ctx->src_shift) & 1;
-}
-
-static int golombset_decode_bits(struct st_golombset_decode_t *ctx, unsigned bits, uint64_t *value)
-{
- int bit;
-
- *value = 0;
- for (; bits != 0; --bits) {
- if ((bit = golombset_decode_bit(ctx)) == -1)
- return -1;
- *value = (*value * 2) + bit;
- }
-
- return 0;
-}
-
-static int golombset_encode_value(struct st_golombset_encode_t *ctx, unsigned fixed_bits, uint64_t value)
-{
- /* emit quontient */
- uint64_t unary_bits = value >> fixed_bits;
- for (; unary_bits != 0; --unary_bits)
- if (golombset_encode_bit(ctx, 0) != 0)
- return -1;
- if (golombset_encode_bit(ctx, 1) != 0)
- return -1;
- /* emit remainder */
- return golombset_encode_bits(ctx, fixed_bits, value);
-}
-
-static int golombset_decode_value(struct st_golombset_decode_t *ctx, unsigned fixed_bits, uint64_t *value)
-{
- uint64_t q;
- int bit;
-
- /* decode quontient */
- for (q = 0; ; ++q) {
- if ((bit = golombset_decode_bit(ctx)) == -1)
- return -1;
- if (bit)
- break;
- }
- /* decode remainder */
- if (golombset_decode_bits(ctx, fixed_bits, value) == -1)
- return -1;
- /* merge q and r */
- *value += q << fixed_bits;
-
- return 0;
-}
-
-static int golombset_encode(unsigned fixed_bits, uint64_t *keys, size_t num_keys, void *buf, size_t *bufsize)
-{
- struct st_golombset_encode_t ctx = {(unsigned char *)buf - 1, (unsigned char *)buf + *bufsize};
- size_t i;
- uint64_t next_min = 0;
-
- for (i = 0; i != num_keys; ++i) {
- if (golombset_encode_value(&ctx, fixed_bits, keys[i] - next_min) != 0)
- return -1;
- next_min = keys[i] + 1;
- }
-
- *bufsize = ctx.dst + 1 - (unsigned char *)buf;
-
- return 0;
-}
-
-static int golombset_decode(unsigned fixed_bits, const void *buf, size_t bufsize, uint64_t *keys, size_t *num_keys)
-{
- struct st_golombset_decode_t ctx = {buf, (unsigned char *)buf + bufsize, 8};
- size_t index = 0;
- uint64_t next_min = 0;
-
- while (1) {
- uint64_t value;
- if (golombset_decode_value(&ctx, fixed_bits, &value) != 0)
- break;
- if (index == *num_keys) {
- /* not enough space */
- return -1;
- }
- value += next_min;
- keys[index++] = value;
- next_min = value + 1;
- }
- *num_keys = index;
- return 0;
-}
-
-#endif
diff --git a/web/server/h2o/libh2o/deps/golombset/test.c b/web/server/h2o/libh2o/deps/golombset/test.c
deleted file mode 100644
index 42a8ac8f4..000000000
--- a/web/server/h2o/libh2o/deps/golombset/test.c
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * Copyright (c) 2015 Kazuho Oku
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-#include <inttypes.h>
-#include <stdio.h>
-#include <string.h>
-#include "golombset.h"
-
-int main(int argc, char **argv)
-{
- uint64_t keys[] = {151, 192, 208, 269, 461, 512, 526, 591, 662, 806, 831, 866, 890,
- 997, 1005, 1017, 1134, 1207, 1231, 1327, 1378, 1393, 1418, 1525, 1627, 1630};
- const size_t num_keys = sizeof(keys) / sizeof(keys[0]);
- unsigned char buf[1024];
- size_t bufsize = sizeof(buf);
-
- if (golombset_encode(6, keys, num_keys, buf, &bufsize) != 0) {
- fprintf(stderr, "golombset_encode failed\n");
- return 111;
- }
- printf("encoded %zu entries into %zu bytes\n", num_keys, bufsize);
-
- uint64_t decoded_keys[num_keys];
- size_t num_decoded_keys = num_keys;
- if (golombset_decode(6, buf, bufsize, decoded_keys, &num_decoded_keys) != 0) {
- fprintf(stderr, "golombset_decode failed\n");
- return 111;
- }
-
- if (num_decoded_keys != num_keys) {
- fprintf(stderr, "unexpected number of outputs\n");
- return 111;
- }
- if (memcmp(keys, decoded_keys, sizeof(keys[0]) * num_keys) != 0) {
- fprintf(stderr, "output mismatch\n");
- return 111;
- }
-
- return 0;
-}
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