Add two stats counters, counting number of gzip and gunzip operations.

(fix a typo in previous commit)

bin/varnishd/cache_gzip.c

@@ -160,6 +160,7 @@ VGZ_NewUngzip(struct sess *sp, const char *id)
 
 	CHECK_OBJ_NOTNULL(sp, SESS_MAGIC);
 	vg = vgz_alloc_vgz(sp, id);
+	VSC_main->n_gunzip++;
 
 	/*
 	 * Max memory usage according to zonf.h:
@@ -179,6 +180,7 @@ VGZ_NewGzip(struct sess *sp, const char *id)
 
 	CHECK_OBJ_NOTNULL(sp, SESS_MAGIC);
 	vg = vgz_alloc_vgz(sp, id);
+	VSC_main->n_gzip++;
 
 	/*
 	 * From zconf.h:

bin/varnishd/cache_response.c

@@ -253,7 +253,7 @@ res_WriteGunzipObj(struct sess *sp)
 
 	CHECK_OBJ_NOTNULL(sp, SESS_MAGIC);
 
-	vg = VGZ_NewUngzip(sp, "U R -");
+	vg = VGZ_NewUngzip(sp, "U D -");
 
 	VTAILQ_FOREACH(st, &sp->obj->store, list) {
 		CHECK_OBJ_NOTNULL(sp, SESS_MAGIC);

include/vsc_fields.h

@@ -154,9 +154,11 @@ VSC_F(dir_dns_failed,	uint64_t, 0, 'a', "DNS director failed lookups")
 VSC_F(dir_dns_hit,		uint64_t, 0, 'a', "DNS director cached lookups hit")
 VSC_F(dir_dns_cache_full,	uint64_t, 0, 'a', "DNS director full dnscache")
 
-
 VSC_F(vmods,		uint64_t, 0, 'i', "Loaded VMODs")
 
+VSC_F(n_gzip,			uint64_t, 0, 'a', "Gzip operations")
+VSC_F(n_gunzip,			uint64_t, 0, 'a', "Gunzip operations")
+
 #endif
 
 /**********************************************************************/