From 523d42269ff89490b9dad25565121ea5e7696881 Mon Sep 17 00:00:00 2001 From: Andrew Clayton Date: Fri, 29 Nov 2024 15:43:11 +0000 Subject: http: compress: Add a couple of helper functions This adds two helper functions that will be used in subsequent commits. nxt_http_comp_compress() does the actual compression. nxt_http_comp_bound() returns the maximum compressed size for the given size. Signed-off-by: Andrew Clayton --- src/nxt_http_compression.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) (limited to 'src') diff --git a/src/nxt_http_compression.c b/src/nxt_http_compression.c index e6083ec3..6bd13fc9 100644 --- a/src/nxt_http_compression.c +++ b/src/nxt_http_compression.c @@ -137,6 +137,35 @@ static const nxt_http_comp_type_t nxt_http_comp_compressors[] = { }; +static ssize_t +nxt_http_comp_compress(uint8_t *dst, size_t dst_size, const uint8_t *src, + size_t src_size, bool last) +{ + nxt_http_comp_ctx_t *ctx = nxt_http_comp_ctx(); + nxt_http_comp_compressor_t *compressor; + const nxt_http_comp_operations_t *cops; + + compressor = &nxt_http_comp_enabled_compressors[ctx->idx]; + cops = compressor->type->cops; + + return cops->deflate(&ctx->ctx, src, src_size, dst, dst_size, last); +} + + +static size_t +nxt_http_comp_bound(size_t size) +{ + nxt_http_comp_ctx_t *ctx = nxt_http_comp_ctx(); + nxt_http_comp_compressor_t *compressor; + const nxt_http_comp_operations_t *cops; + + compressor = &nxt_http_comp_enabled_compressors[ctx->idx]; + cops = compressor->type->cops; + + return cops->bound(&ctx->ctx, size); +} + + bool nxt_http_comp_wants_compression(void) { -- cgit