From: Gordon Hecker <gh@emlix.com>
Date: Mon, 6 Dec 2010 08:32:13 +0000 (+0100)
Subject: cache: provide api for enabling/disabling cache
X-Git-Tag: e2factory-2.3.9pre1~3
X-Git-Url: https://git.e2factory.org/?a=commitdiff_plain;h=8b8ebbbe039b0ceb36118ee920e4518b45033d83;p=e2factory.git

cache: provide api for enabling/disabling cache

Signed-off-by: Gordon Hecker <gh@emlix.com>
---

diff --git a/generic/cache.lua b/generic/cache.lua
index 8afd5f3..0d54a5d 100644
--- a/generic/cache.lua
+++ b/generic/cache.lua
@@ -493,3 +493,28 @@ function file_path(cache, server, location, flags)
 	end
 	return path, nil
 end
+
+--- enable/disable writeback for a server
+-- @param cache the cache data structure
+-- @param server the server where the file is located
+-- @param value boolean: the new setting
+-- @return boolean
+-- @return an error object on failure
+function set_writeback(cache, server, value)
+        e2lib.log(4, string.format("set_writeback(): %s %s %s",
+                                        cache.name, server, tostring(value)))
+	if type(value) ~= "boolean" then
+		return false, new_error(
+				"cache.set_writeback(): value is not boolean")
+	end
+	local rc, re = cache:valid_server(server)
+	if not rc then
+		return false, re
+	end
+	local ce, re = cache:ce_by_server(server)
+	if not rc then
+		return false, re
+	end
+	ce.flags.writeback = value
+	return true, nil
+end