From 5237c85147c2b342b9dd2e152f027597ef578646 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 function 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 | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/src/nxt_http_compression.c b/src/nxt_http_compression.c index 6f85617a..4f9c0a0b 100644 --- a/src/nxt_http_compression.c +++ b/src/nxt_http_compression.c @@ -151,6 +151,36 @@ static void print_comp_config(size_t n) } } + +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 = &compressor_ctx; + nxt_http_comp_compressor_t *compressor; + const nxt_http_comp_operations_t *cops; + + compressor = &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 = &compressor_ctx; + nxt_http_comp_compressor_t *compressor; + const nxt_http_comp_operations_t *cops; + + compressor = &enabled_compressors[ctx->idx]; + cops = compressor->type->cops; + + return cops->bound(&ctx->ctx, size); +} + + bool nxt_http_comp_wants_compression(void) { -- cgit