[4.1] 94a5f27 Add a debug.sleep(DURATION) synchronization helper

[Dridi Boukelmoune]

commit 94a5f275aed3bfd1a49b486e76be31d4a64ac0c3
Author: Dridi Boukelmoune <dridi.boukelmoune at gmail.com>
Date:   Mon Jul 6 08:24:54 2015 +0200

    Add a debug.sleep(DURATION) synchronization helper

diff --git a/lib/libvmod_debug/vmod.vcc b/lib/libvmod_debug/vmod.vcc
index 67edd62..305deaa 100644
--- a/lib/libvmod_debug/vmod.vcc
+++ b/lib/libvmod_debug/vmod.vcc
@@ -105,3 +105,7 @@ Register the vmod to receive expiry callbacks
 $Function VOID init_fail()
 
 Function to fail vcl_init{}
+
+$Function VOID sleep(DURATION)
+
+Block the current worker thread.
diff --git a/lib/libvmod_debug/vmod_debug.c b/lib/libvmod_debug/vmod_debug.c
index f9f3361..ce2e22b 100644
--- a/lib/libvmod_debug/vmod_debug.c
+++ b/lib/libvmod_debug/vmod_debug.c
@@ -36,6 +36,7 @@
 #include "vcl.h"
 #include "vrt.h"
 #include "vsb.h"
+#include "vtim.h"
 #include "vcc_if.h"
 
 struct priv_vcl {
@@ -269,3 +270,11 @@ event_function(VRT_CTX, struct vmod_priv *priv, enum vcl_event_e e)
 	priv->free = priv_vcl_free;
 	return (0);
 }
+
+VCL_VOID __match_proto__(td_debug_sleep)
+vmod_sleep(VRT_CTX, VCL_DURATION t)
+{
+
+	CHECK_OBJ_ORNULL(ctx, VRT_CTX_MAGIC);
+	VTIM_sleep(t);
+}