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/*
*
*/
/* XXX Remove */
#define _GNU_SOURCE
#include <unistd.h>
#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>
#include <brotli/encode.h>
#include <nxt_http_compression.h>
static void nxt_brotli_free(const nxt_http_comp_compressor_ctx_t *ctx)
{
BrotliEncoderState *brotli = ctx->brotli_ctx;
BrotliEncoderDestroyInstance(brotli);
}
static void nxt_brotli_init(nxt_http_comp_compressor_ctx_t *ctx)
{
BrotliEncoderState **brotli = &ctx->brotli_ctx;
*brotli = BrotliEncoderCreateInstance(NULL, NULL, NULL);
BrotliEncoderSetParameter(*brotli, BROTLI_PARAM_QUALITY, ctx->level);
printf("%7d %s: brotli compression level [%d]\n", gettid(), __func__,
ctx->level);
}
static size_t nxt_brotli_compressed_size(const nxt_http_comp_compressor_ctx_t *ctx,
size_t in_len)
{
return BrotliEncoderMaxCompressedSize(in_len);
}
static ssize_t nxt_brotli_compress(nxt_http_comp_compressor_ctx_t *ctx,
const uint8_t *in_buf, size_t in_len,
uint8_t *out_buf, size_t out_len, bool last)
{
bool ok;
size_t out_bytes;
uint8_t *outp;
BrotliEncoderState *brotli = ctx->brotli_ctx;
printf("%7d %s: last/%s\n", gettid(), __func__, last ? "true" : "false");
printf("%7d %s: in_len [%lu] out_len [%lu]\n", gettid(), __func__,
in_len, out_len);
outp = out_buf;
ok = BrotliEncoderCompressStream(brotli, BROTLI_OPERATION_PROCESS,
&in_len, &in_buf, &out_bytes, &outp,
NULL);
ok = BrotliEncoderCompressStream(brotli, BROTLI_OPERATION_FLUSH,
&in_len, &in_buf, &out_bytes, &outp,
NULL);
printf("%7d %s: in_len [%lu] out_len [%lu] out_bytes [%lu]\n", gettid(),
__func__, in_len, out_len, out_bytes);
if (last) {
ok = BrotliEncoderCompressStream(brotli, BROTLI_OPERATION_FINISH,
&in_len, &in_buf, &out_bytes, &outp,
NULL);
nxt_brotli_free(ctx);
}
printf("%7d %s: in_len [%lu] out_len [%lu] out_bytes [%lu]\n", gettid(),
__func__, in_len, out_len, out_bytes);
printf("%7d %s: buf [%p] outp [%p]\n", gettid(), __func__, out_buf, outp);
return out_len - out_bytes;
}
const nxt_http_comp_operations_t nxt_comp_brotli_ops = {
.init = nxt_brotli_init,
.compressed_size = nxt_brotli_compressed_size,
.deflate = nxt_brotli_compress,
.free_ctx = nxt_brotli_free,
};
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