Add VCL action "esi" and a vrt file to contain it.

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@2069 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/Makefile.am

@@ -34,6 +34,7 @@ varnishd_SOURCES = \
 	cache_vrt.c \
 	cache_vrt_acl.c \
 	cache_vrt_re.c \
+	cache_vrt_esi.c \
 	cache_ws.c \
 	hash_simple_list.c \
 	hash_classic.c \

bin/varnishd/cache_vrt_esi.c

+/*-
+ * Copyright (c) 2006 Verdens Gang AS
+ * Copyright (c) 2006-2007 Linpro AS
+ * All rights reserved.
+ *
+ * Author: Poul-Henning Kamp <phk@phk.freebsd.dk>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $Id: cache_vrt.c 2067 2007-09-30 20:57:30Z phk $
+ *
+ * Runtime support for compiled VCL programs
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdarg.h>
+
+#include "shmlog.h"
+#include "vrt.h"
+#include "vcl.h"
+#include "cache.h"
+
+/*--------------------------------------------------------------------*/
+
+void
+VRT_ESI(struct sess *sp)
+{
+
+	CHECK_OBJ_NOTNULL(sp, SESS_MAGIC);
+	INCOMPL();
+}

include/vrt.h

@@ -113,6 +113,8 @@ void VRT_handling(struct sess *sp, unsigned hand);
 /* Simple stuff */
 int VRT_strcmp(const char *s1, const char *s2);
 
+void VRT_ESI(struct sess *sp);
+
 
 /* Backend related */
 void VRT_init_simple_backend(struct backend **, const struct vrt_simple_backend *);

lib/libvcl/vcc_action.c

@@ -317,6 +317,15 @@ parse_purge_hash(struct tokenlist *tl)
 	Fb(tl, 0, ", 1);\n");
 }
 
+static void
+parse_esi(struct tokenlist *tl)
+{
+
+	vcc_NextToken(tl);
+	Fb(tl, 1, "VRT_ESI(sp);\n");
+	Expect(tl, ';');
+	vcc_NextToken(tl);
+}
 
 /*--------------------------------------------------------------------*/
 
@@ -336,6 +345,7 @@ static struct action_table {
 	{ "remove", 	parse_remove },
 	{ "purge_url",	parse_purge_url },
 	{ "purge_hash",	parse_purge_hash },
+	{ "esi",	parse_esi },
 
 	{ NULL,		NULL }
 };

lib/libvcl/vcc_fixed_token.c

@@ -492,6 +492,8 @@ vcl_output_lang_h(struct vsb *sb)
 	vsb_cat(sb, "/* Simple stuff */\n");
 	vsb_cat(sb, "int VRT_strcmp(const char *s1, const char *s2);\n");
 	vsb_cat(sb, "\n");
+	vsb_cat(sb, "void VRT_ESI(struct sess *sp);\n");
+	vsb_cat(sb, "\n");
 	vsb_cat(sb, "\n");
 	vsb_cat(sb, "/* Backend related */\n");
 	vsb_cat(sb, "void VRT_init_simple_backend(struct backend **, const struct vrt_simple_backend *);\n");