From: Tollef Fog Heen <tfheen@err.no>
Date: Wed, 26 Nov 2008 00:31:44 +0000 (+0100)
Subject: Initial foo
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fheads%2Fdns_director;p=varnish

Initial foo
---

diff --git a/varnish-cache/bin/varnishd/cache_dir_dns.c b/varnish-cache/bin/varnishd/cache_dir_dns.c
new file mode 100644
index 00000000..fb6d6bc6
--- /dev/null
+++ b/varnish-cache/bin/varnishd/cache_dir_dns.c
@@ -0,0 +1,117 @@
+/*-
+ * Copyright (c) 2006 Verdens Gang AS
+ * Copyright (c) 2006-2008 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.
+ *
+ * $Id$
+ *
+ */
+
+#include "config.h"
+
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "shmlog.h"
+#include "cache.h"
+#include "cache_backend.h"
+#include "vrt.h"
+
+/*--------------------------------------------------------------------*/
+
+struct vdi_dns {
+	unsigned		magic;
+#define VDI_DNS_MAGIC		0x443B3CDC
+	struct director		dir;
+	struct backend		*backend;
+	unsigned		dns_ttl;
+};
+
+static struct vbe_conn *
+vdi_dns_getfd(struct sess *sp)
+{
+	struct vdi_dns *vs;
+
+	CHECK_OBJ_NOTNULL(sp, SESS_MAGIC);
+	CHECK_OBJ_NOTNULL(sp->director, DIRECTOR_MAGIC);
+	CAST_OBJ_NOTNULL(vs, sp->director->priv, VDI_DNS_MAGIC);
+	return (VBE_GetVbe(sp, vs->backend));
+}
+
+static unsigned
+vdi_dns_healthy(const struct sess *sp)
+{
+	struct vdi_dns *vs;
+
+	CHECK_OBJ_NOTNULL(sp, SESS_MAGIC);
+	CHECK_OBJ_NOTNULL(sp->director, DIRECTOR_MAGIC);
+	CAST_OBJ_NOTNULL(vs, sp->director->priv, VDI_DNS_MAGIC);
+	return 1;
+}
+
+/*lint -e{818} not const-able */
+static void
+vdi_dns_fini(struct director *d)
+{
+	struct vdi_dns *vs;
+
+	CHECK_OBJ_NOTNULL(d, DIRECTOR_MAGIC);
+	CAST_OBJ_NOTNULL(vs, d->priv, VDI_DNS_MAGIC);
+
+	VBE_DropRef(vs->backend);
+	free(vs->dir.vcl_name);
+	vs->dir.magic = 0;
+	FREE_OBJ(vs);
+}
+
+void
+VRT_init_dir_dns(struct cli *cli, struct director **bp,
+    const struct vrt_dir_simple *t)
+{
+	struct vdi_simple *vs;
+
+	(void)cli;
+
+	ALLOC_OBJ(vs, VDI_DNS_MAGIC);
+	XXXAN(vs);
+	vs->dir.magic = DIRECTOR_MAGIC;
+	vs->dir.priv = vs;
+	vs->dir.name = "dns";
+	REPLACE(vs->dir.vcl_name, t->host->vcl_name);
+	vs->dir.getfd = vdi_dns_getfd;
+	vs->dir.fini = vdi_dns_fini;
+	vs->dir.healthy = vdi_dns_healthy;
+
+	vs->dns_ttl = t->dns_ttl;
+
+	*bp = &vs->dir;
+}