Assign VMODS unique numbers, and make the count part of the VGC metadata

lib/libvcc/generate.py

@@ -666,6 +666,8 @@ struct VCL_conf {
 	const char			**srcname;
 	const char			**srcbody;
 
+	unsigned			nvmod;
+
 	vcl_event_f			*event_vcl;
 """)
 

lib/libvcc/vcc_compile.c

@@ -424,6 +424,7 @@ EmitStruct(const struct vcc *tl)
 	Fc(tl, 0, "\t.nsrc = VGC_NSRCS,\n");
 	Fc(tl, 0, "\t.srcname = srcname,\n");
 	Fc(tl, 0, "\t.srcbody = srcbody,\n");
+	Fc(tl, 0, "\t.nvmod = %u,\n", tl->vmod_count);
 #define VCL_MET_MAC(l,u,t,b) \
 	Fc(tl, 0, "\t." #l "_func = VGC_function_vcl_" #l ",\n");
 #include "tbl/vcl_returns.h"

lib/libvcc/vcc_compile.h

@@ -252,7 +252,7 @@ struct vcc {
 	const char		*default_probe;
 
 	unsigned		unique;
-
+	unsigned		vmod_count;
 };
 
 struct method {

lib/libvcc/vcc_vmod.c

@@ -336,6 +336,7 @@ vcc_ParseImport(struct vcc *tl)
 	vcc_json_always(tl, msym);
 
 	Fh(tl, 0, "\n/* --- BEGIN VMOD %.*s --- */\n\n", PF(mod));
+	Fh(tl, 0, "#define VMOD_NUMBER_%.*s %u\n", PF(mod), tl->vmod_count++);
 	Fh(tl, 0, "static struct vmod *VGC_vmod_%.*s;\n", PF(mod));
 	Fh(tl, 0, "static struct vmod_priv vmod_priv_%.*s;\n", PF(mod));
 	Fh(tl, 0, "\n%s\n", vmd->proto);