diff options
Diffstat (limited to 'src/web/server/h2o/libh2o/lib/handler/compress/brotli.cc')
-rw-r--r-- | src/web/server/h2o/libh2o/lib/handler/compress/brotli.cc | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/src/web/server/h2o/libh2o/lib/handler/compress/brotli.cc b/src/web/server/h2o/libh2o/lib/handler/compress/brotli.cc deleted file mode 100644 index d4d06e9c4..000000000 --- a/src/web/server/h2o/libh2o/lib/handler/compress/brotli.cc +++ /dev/null @@ -1,138 +0,0 @@ -/* - * Copyright (c) 2016 DeNA Co., Ltd., 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 <cassert> -#include <cstdlib> -#include <vector> -#include <zlib.h> -#include "h2o.h" -#include "encode.h" - -namespace { - class brotli_context : public h2o_compress_context_t { - protected: - brotli::BrotliCompressor *brotli_; - brotli::BrotliParams params_; - std::vector<h2o_iovec_t> bufs_; // all bufs_[nnn].base must be free(3)ed - public: - brotli_context(int quality, size_t estimated_content_length) : brotli_(NULL) { - name = h2o_iovec_init(H2O_STRLIT("br")); - transform = _compress; - params_.quality = quality; - if (estimated_content_length != std::numeric_limits<size_t>::max()) - _update_lgwin(params_, estimated_content_length); - } - ~brotli_context() { - _clear_bufs(); - delete brotli_; - } - static void dispose(void *_self) { - brotli_context *self = static_cast<brotli_context *>(_self); - self->~brotli_context(); - } - private: - void _clear_bufs(); - void _emit(bool is_last, bool force_flush); - void _compress(h2o_iovec_t *inbufs, size_t inbufcnt, int is_final, h2o_iovec_t **outbufs, size_t *outbufcnt); - static void _compress(h2o_compress_context_t *self, h2o_iovec_t *inbufs, size_t inbufcnt, h2o_send_state_t state, - h2o_iovec_t **outbufs, size_t *outbufcnt) { - static_cast<brotli_context*>(self)->_compress(inbufs, inbufcnt, !h2o_send_state_is_in_progress(state), outbufs, outbufcnt); - } - static void _update_lgwin(brotli::BrotliParams ¶ms, size_t estimated_content_length); - }; -} - -void brotli_context::_clear_bufs() -{ - for (std::vector<h2o_iovec_t>::iterator i = bufs_.begin(); i != bufs_.end(); ++i) - free(i->base); - bufs_.clear(); -} - -void brotli_context::_emit(bool is_last, bool force_flush) -{ - uint8_t *output; - size_t out_size; - bool ret = brotli_->WriteBrotliData(is_last, force_flush, &out_size, &output); - assert(ret); - (void)ret; - if (out_size != 0) - bufs_.push_back(h2o_strdup(NULL, reinterpret_cast<const char *>(output), out_size)); -} - -void brotli_context::_compress(h2o_iovec_t *inbufs, size_t inbufcnt, int is_final, h2o_iovec_t **outbufs, size_t *outbufcnt) -{ - if (brotli_ == NULL) { - if (is_final) { - uint64_t len = 0; - for (size_t i = 0; i != inbufcnt; ++i) - len += inbufs[i].len; - if (len < std::numeric_limits<size_t>::max()) - _update_lgwin(params_, len); - } - brotli_ = new brotli::BrotliCompressor(params_); - } - - _clear_bufs(); - - if (inbufcnt != 0) { - size_t inbufindex = 0, offset = 0, block_space = brotli_->input_block_size(); - while (inbufindex != inbufcnt) { - size_t copy_len = std::min(block_space, inbufs[inbufindex].len - offset); - brotli_->CopyInputToRingBuffer(copy_len, reinterpret_cast<const uint8_t *>(inbufs[inbufindex].base) + offset); - offset += copy_len; - if (inbufs[inbufindex].len == offset) { - if (++inbufindex == inbufcnt) - break; - offset = 0; - } - if (block_space == 0) { - _emit(false, false); - block_space = brotli_->input_block_size(); - } - } - _emit(is_final, !is_final); - } else { - if (is_final) - _emit(true, false); - } - - if (is_final) { - delete brotli_; - brotli_ = NULL; - } - - *outbufs = &bufs_.front(); - *outbufcnt = bufs_.size(); -} - -void brotli_context::_update_lgwin(brotli::BrotliParams ¶ms, size_t estimated_content_length) -{ - int bits = estimated_content_length > 1 ? sizeof(unsigned long long) * 8 - __builtin_clzll(estimated_content_length - 1) : 1; - if (bits < params.lgwin) - params.lgwin = std::max(bits, brotli::kMinWindowBits); -} - -h2o_compress_context_t *h2o_compress_brotli_open(h2o_mem_pool_t *pool, int quality, size_t estimated_content_length) -{ - brotli_context *ctx = static_cast<brotli_context *>(h2o_mem_alloc_shared(pool, sizeof(*ctx), brotli_context::dispose)); - return new (ctx) brotli_context(quality, estimated_content_length); -} |