MINOR: compression: Use a memory pool to allocate compression states

Instead of doing a malloc/free to each HTTP transaction to allocate the
compression state (when the HTTP compression is enabled), we use a memory pool.

diff --git a/src/flt_http_comp.c b/src/flt_http_comp.c
index 54ffeedb1d4f5808402ee4335e709907cf69831b..64c669d54ddc5f5621f2fb07f0d913ed5c5bd0fe 100644 (file)
--- a/src/flt_http_comp.c
+++ b/src/flt_http_comp.c
@@ -32,6 +32,10 @@ static const char *http_comp_flt_id = "compression filter";
 
 struct flt_ops comp_ops;
 
+
+/* Pools used to allocate comp_state structs */
+static struct pool_head *pool2_comp_state = NULL;
+
 static struct buffer *tmpbuf = &buf_empty;
 static struct buffer *zbuf   = &buf_empty;
 
@@ -87,7 +91,8 @@ comp_start_analyze(struct stream *s, struct filter *filter, struct channel *chn)
        if (filter->ctx == NULL) {
                struct comp_state *st;
 
-               if (!(st = malloc(sizeof(*st))))
+               st = pool_alloc_dirty(pool2_comp_state);
+               if (st == NULL)
                        return -1;
 
                st->comp_algo   = NULL;
@@ -113,7 +118,7 @@ comp_end_analyze(struct stream *s, struct filter *filter, struct channel *chn)
        /* release any possible compression context */
        if (st->comp_algo)
                st->comp_algo->end(&st->comp_ctx);
-       free(st);
+       pool_free2(pool2_comp_state, st);
        filter->ctx = NULL;
  end:
        return 1;
@@ -966,4 +971,5 @@ __flt_http_comp_init(void)
        cfg_register_keywords(&cfg_kws);
        flt_register_keywords(&filter_kws);
        sample_register_fetches(&sample_fetch_keywords);
+       pool2_comp_state = create_pool("comp_state", sizeof(struct comp_state), MEM_F_SHARED);
 }