Added granularity as a subargument to the options for file storage:

-s file,<dir_or_file>,<size>,<granularity>
Fixes #244



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@2988 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/storage_file.c

@@ -244,18 +244,26 @@ smf_init(struct stevedore *parent, int ac, char * const *av)
 	struct stat st;
 	struct smf_sc *sc;
 	unsigned u;
+	uintmax_t page_size;
 
 	AZ(av[ac]);
 
 	fn = default_filename;
 	size = default_size;
+	page_size = getpagesize();
 
-	if (ac > 2)
+	if (ac > 3)
 		ARGV_ERR("(-sfile) too many arguments\n");
 	if (ac > 0 && *av[0] != '\0')
 		fn = av[0];
 	if (ac > 1 && *av[1] != '\0')
 		size = av[1];
+	if (ac > 2 && *av[2] != '\0') {
+
+		q = str2bytes(av[2], &page_size, 0);
+		if (q != NULL)
+			ARGV_ERR("(-sfile) granularity \"%s\": %s\n", av[2], q);
+	}
 
 	AN(fn);
 	AN(size);
@@ -266,7 +274,7 @@ smf_init(struct stevedore *parent, int ac, char * const *av)
 	for (u = 0; u < NBUCKET; u++)
 		VTAILQ_INIT(&sc->free[u]);
 	VTAILQ_INIT(&sc->used);
-	sc->pagesize = getpagesize();
+	sc->pagesize = page_size;
 
 	parent->priv = sc;
 

bin/varnishd/varnishd.c

@@ -204,6 +204,7 @@ usage(void)
 	fprintf(stderr, FMT, "", "  -s file  [default: use /tmp]");
 	fprintf(stderr, FMT, "", "  -s file,<dir_or_file>");
 	fprintf(stderr, FMT, "", "  -s file,<dir_or_file>,<size>");
+	fprintf(stderr, FMT, "", "  -s file,<dir_or_file>,<size>,<granularity>");
 	fprintf(stderr, FMT, "-t", "Default TTL");
 	fprintf(stderr, FMT, "-T address:port",
 	    "Telnet listen address and port");