[master] 2d53dfe Start moving the backend VCL variables to use busyobj rather than req

[Poul-Henning Kamp]

commit 2d53dfe4006d54ee783f9513c36b55f99789108e
Author: Poul-Henning Kamp <phk at FreeBSD.org>
Date:   Mon Apr 22 10:41:38 2013 +0000

    Start moving the backend VCL variables to use busyobj rather than req

diff --git a/bin/varnishd/cache/cache_vrt_var.c b/bin/varnishd/cache/cache_vrt_var.c
index 16f8c8b..8378095 100644
--- a/bin/varnishd/cache/cache_vrt_var.c
+++ b/bin/varnishd/cache/cache_vrt_var.c
@@ -63,38 +63,47 @@ vrt_do_string(const struct http *hp, int fld,
 
 #define VRT_DO_HDR(obj, hdr, http, fld)				\
 void								\
-VRT_l_##obj##_##hdr(const struct req *req, const char *p, ...)	\
+VRT_l_##obj##_##hdr(const struct CPAR *px, const char *p, ...)	\
 {								\
 	va_list ap;						\
 								\
-	CHECK_OBJ_NOTNULL(req, REQ_MAGIC);			\
+	CHECK_OBJ_NOTNULL(px, CMAGIC);				\
 	va_start(ap, p);					\
 	vrt_do_string(http, fld, #obj "." #hdr, p, ap);		\
 	va_end(ap);						\
 }								\
 								\
 const char *							\
-VRT_r_##obj##_##hdr(const struct req *req)			\
+VRT_r_##obj##_##hdr(const struct CPAR *px)			\
 {								\
-	CHECK_OBJ_NOTNULL(req, REQ_MAGIC);			\
+	CHECK_OBJ_NOTNULL(px, CMAGIC);				\
 	CHECK_OBJ_NOTNULL(http, HTTP_MAGIC);			\
 	return (http->hd[fld].b);				\
 }
 
-VRT_DO_HDR(req,   method,	req->http,		HTTP_HDR_METHOD)
-VRT_DO_HDR(req,   request,	req->http,		HTTP_HDR_METHOD)
-VRT_DO_HDR(req,   url,		req->http,		HTTP_HDR_URL)
-VRT_DO_HDR(req,   proto,	req->http,		HTTP_HDR_PROTO)
-VRT_DO_HDR(bereq, method,	req->busyobj->bereq,	HTTP_HDR_METHOD)
-VRT_DO_HDR(bereq, request,	req->busyobj->bereq,	HTTP_HDR_METHOD)
-VRT_DO_HDR(bereq, url,		req->busyobj->bereq,	HTTP_HDR_URL)
-VRT_DO_HDR(bereq, proto,	req->busyobj->bereq,	HTTP_HDR_PROTO)
-VRT_DO_HDR(obj,   proto,	req->obj->http,		HTTP_HDR_PROTO)
-VRT_DO_HDR(obj,   response,	req->obj->http,		HTTP_HDR_RESPONSE)
-VRT_DO_HDR(resp,  proto,	req->resp,		HTTP_HDR_PROTO)
-VRT_DO_HDR(resp,  response,	req->resp,		HTTP_HDR_RESPONSE)
-VRT_DO_HDR(beresp,  proto,	req->busyobj->beresp,	HTTP_HDR_PROTO)
-VRT_DO_HDR(beresp,  response,	req->busyobj->beresp,	HTTP_HDR_RESPONSE)
+#define CPAR req
+#define CMAGIC REQ_MAGIC
+VRT_DO_HDR(req,    method,	px->http,	HTTP_HDR_METHOD)
+VRT_DO_HDR(req,    request,	px->http,	HTTP_HDR_METHOD)
+VRT_DO_HDR(req,    url,		px->http,	HTTP_HDR_URL)
+VRT_DO_HDR(req,    proto,	px->http,	HTTP_HDR_PROTO)
+VRT_DO_HDR(obj,    proto,	px->obj->http,	HTTP_HDR_PROTO)
+VRT_DO_HDR(obj,    response,	px->obj->http,	HTTP_HDR_RESPONSE)
+VRT_DO_HDR(resp,   proto,	px->resp,	HTTP_HDR_PROTO)
+VRT_DO_HDR(resp,   response,	px->resp,	HTTP_HDR_RESPONSE)
+#undef CPAR 
+#undef CMAGIC
+
+#define CPAR busyobj
+#define CMAGIC BUSYOBJ_MAGIC
+VRT_DO_HDR(bereq,  method,	px->bereq,	HTTP_HDR_METHOD)
+VRT_DO_HDR(bereq,  request,	px->bereq,	HTTP_HDR_METHOD)
+VRT_DO_HDR(bereq,  url,		px->bereq,	HTTP_HDR_URL)
+VRT_DO_HDR(bereq,  proto,	px->bereq,	HTTP_HDR_PROTO)
+VRT_DO_HDR(beresp, proto,	px->beresp,	HTTP_HDR_PROTO)
+VRT_DO_HDR(beresp, response,	px->beresp,	HTTP_HDR_RESPONSE)
+#undef CPAR 
+#undef CMAGIC
 
 /*--------------------------------------------------------------------*/
 
diff --git a/lib/libvcl/generate.py b/lib/libvcl/generate.py
index 5df3fd8..2bd958e 100755
--- a/lib/libvcl/generate.py
+++ b/lib/libvcl/generate.py
@@ -241,25 +241,25 @@ sp_variables = (
 		'STRING',
 		( 'pipe', 'backend_fetch', 'pass', 'miss', 'backend_response',),
 		( 'pipe', 'backend_fetch', 'pass', 'miss', 'backend_response',),
-		'cR'
+		'cB'
 	),
 	('bereq.request',
 		'STRING',
 		( 'pipe', 'backend_fetch', 'pass', 'miss', 'backend_response',),
 		( 'pipe', 'backend_fetch', 'pass', 'miss', 'backend_response',),
-		'cR'
+		'cB'
 	),
 	('bereq.url',
 		'STRING',
 		( 'pipe', 'backend_fetch', 'pass', 'miss', 'backend_response',),
 		( 'pipe', 'backend_fetch', 'pass', 'miss', 'backend_response',),
-		'cR'
+		'cB'
 	),
 	('bereq.proto',
 		'STRING',
 		( 'pipe', 'backend_fetch', 'pass', 'miss', 'backend_response',),
 		( 'pipe', 'backend_fetch', 'pass', 'miss', 'backend_response',),
-		'cR'
+		'cB'
 	),
 	('bereq.http.',
 		'HEADER',
@@ -289,7 +289,7 @@ sp_variables = (
 		'STRING',
 		( 'backend_response',),
 		( 'backend_response',),
-		'cR'
+		'cB'
 	),
 	('beresp.saintmode',
 		'DURATION',
@@ -307,7 +307,7 @@ sp_variables = (
 		'STRING',
 		( 'backend_response',),
 		( 'backend_response',),
-		'cR'
+		'cB'
 	),
 	('beresp.http.',
 		'HEADER',
@@ -859,10 +859,19 @@ def mk_proto(c, r=False):
 	for i in c:
 		if i == "c" and not r:
 			s += " const"
-		if i == "R":
+		elif i == "c":
+			pass
+		elif i == "R":
 			if r:
 				s += " const"
 			s += " struct req *"
+		elif i == "B":
+			if r:
+				s += " const"
+			s += " struct busyobj *"
+		else:
+			print("Unknown args-spec char '%s'" % i)
+			exit(1)
 	return s[1:]
 
 
@@ -873,8 +882,13 @@ def mk_args(c, r=False):
 	for i in c:
 		if i == "c":
 			continue;
-		if i == "R":
+		elif i == "R":
 			s += "req"
+		elif i == "B":
+			s += "bo"
+		else:
+			print("Unknown args-spec char '%s'" % i)
+			exit(1)
 	if s != "" and not r:
 		s += ","
 	return s