added a code comment that clarify the use of the logic in ngx_chain_u…

…pdate_chains.
openresty · May 8, 2014 · f67e11c · f67e11c
1 parent 001f8a8
commit f67e11c
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/ngx_http_replace_filter_module.c b/src/ngx_http_replace_filter_module.c
@@ -590,6 +590,10 @@ ngx_http_replace_output(ngx_http_request_t *r, ngx_http_replace_ctx_t *ctx)
 
     rc = ngx_http_next_body_filter(r, ctx->out);
 
+    /* we are essentially duplicating the logic of
+     * ngx_chain_update_chains below,
+     * with our own optimizations */
+
     if (ctx->busy == NULL) {
         ctx->busy = ctx->out;