From 2e9718883e8ae22445ca2cd6e493923533c5ec4f Mon Sep 17 00:00:00 2001
From: phk <phk@d4fa192b-c00b-0410-8231-f00ffab90ce4>
Date: Tue, 18 Apr 2006 07:34:24 +0000
Subject: [PATCH] Add trivial malloc backed storage backend.

git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@140 d4fa192b-c00b-0410-8231-f00ffab90ce4
---
 varnish-cache/bin/varnishd/Makefile.am      |  1 +
 varnish-cache/bin/varnishd/cache.h          | 22 +++++++++
 varnish-cache/bin/varnishd/storage_malloc.c | 53 +++++++++++++++++++++
 3 files changed, 76 insertions(+)
 create mode 100644 varnish-cache/bin/varnishd/storage_malloc.c

diff --git a/varnish-cache/bin/varnishd/Makefile.am b/varnish-cache/bin/varnishd/Makefile.am
index 9380faf9..29a35f4f 100644
--- a/varnish-cache/bin/varnishd/Makefile.am
+++ b/varnish-cache/bin/varnishd/Makefile.am
@@ -17,6 +17,7 @@ varnishd_SOURCES = \
 	cli_event.c \
 	hash_simple_list.c \
 	mgt_child.c \
+	storage_malloc.c \
 	tcp.c \
 	varnishd.c
 
diff --git a/varnish-cache/bin/varnishd/cache.h b/varnish-cache/bin/varnishd/cache.h
index 58ed922a..f42ce40b 100644
--- a/varnish-cache/bin/varnishd/cache.h
+++ b/varnish-cache/bin/varnishd/cache.h
@@ -30,6 +30,28 @@ struct hash_slinger {
 
 extern struct hash_slinger hsl_slinger;
 
+/* Storage -----------------------------------------------------------*/
+
+struct storage {
+	TAILQ_ENTRY(storage)	list;
+	void			*ptr;
+	unsigned		len;
+	void			*priv;
+};
+
+typedef void storage_init_f(void);
+typedef struct storage *storage_alloc_f(unsigned size);
+typedef void storage_free_f(struct storage *);
+
+struct stevedore {
+	const char		*name;
+	storage_init_f		*init;
+	storage_alloc_f		*alloc;
+	storage_free_f		*free;
+};
+
+extern struct stevedore sma_stevedore;
+
 /* Prototypes etc ----------------------------------------------------*/
 
 
diff --git a/varnish-cache/bin/varnishd/storage_malloc.c b/varnish-cache/bin/varnishd/storage_malloc.c
new file mode 100644
index 00000000..4baf37dc
--- /dev/null
+++ b/varnish-cache/bin/varnishd/storage_malloc.c
@@ -0,0 +1,53 @@
+/*
+ * $Id$
+ *
+ * Storage method based on malloc(3)
+ */
+
+#include <assert.h>
+#include <stdlib.h>
+#include <sys/queue.h>
+#include <pthread.h>
+
+#include "vcl_lang.h"
+#include "cache.h"
+
+struct sma {
+	struct storage		s;
+};
+
+static void
+sma_init(void)
+{
+}
+
+static struct storage *
+sma_alloc(unsigned size)
+{
+	struct sma *sma;
+
+	sma = calloc(sizeof *sma, 1);
+	assert(sma != NULL);
+	sma->s.priv = sma;
+	sma->s.ptr = malloc(size);
+	assert(sma->s.ptr != NULL);
+	sma->s.len = size;
+	return (&sma->s);
+}
+
+static void
+sma_free(struct storage *s)
+{
+	struct sma *sma;
+
+	sma = s->priv;
+	free(sma->s.ptr);
+	free(sma);
+}
+
+struct stevedore sma_stevedore = {
+	"Malloc",
+	sma_init,
+	sma_alloc,
+	sma_free
+};
-- 
2.39.5