From bb036145679e3e2db213fd12d46afe4aae31707a Mon Sep 17 00:00:00 2001
From: Florian Forster <octo@noris.net>
Date: Wed, 22 Sep 2010 15:56:26 +0200
Subject: [PATCH] src/graph_config.[ch]: Implement the "CacheFile" config
 option.

---
 share/collection.conf |  2 ++
 src/graph_config.c    | 17 ++++++++++++++++-
 src/graph_config.h    |  2 ++
 3 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/share/collection.conf b/share/collection.conf
index 06387d3..855d15f 100644
--- a/share/collection.conf
+++ b/share/collection.conf
@@ -1,3 +1,5 @@
+CacheFile "/tmp/collection4.json"
+
 <DataProvider "rrdtool">
   DataDir "/var/lib/collectd/rrd"
 </DataProvider>
diff --git a/src/graph_config.c b/src/graph_config.c
index 6d2402b..5d275f0 100644
--- a/src/graph_config.c
+++ b/src/graph_config.c
@@ -40,7 +40,13 @@
 # define CONFIGFILE "/etc/collection.conf"
 #endif
 
-time_t last_read_mtime = 0;
+#ifndef CACHEFILE
+# define CACHEFILE "/tmp/collection4.json"
+#endif
+
+static time_t last_read_mtime = 0;
+
+static char *cache_file = NULL;
 
 static int dispatch_config (const oconfig_item_t *ci) /* {{{ */
 {
@@ -55,6 +61,8 @@ static int dispatch_config (const oconfig_item_t *ci) /* {{{ */
       graph_config_add (child);
     else if (strcasecmp ("DataProvider", child->key) == 0)
       data_provider_config (child);
+    else if (strcasecmp ("CacheFile", child->key) == 0)
+      graph_config_get_string (child, &cache_file);
     else
     {
       DEBUG ("Unknown config option: %s", child->key);
@@ -142,4 +150,11 @@ int graph_config_get_bool (const oconfig_item_t *ci, /* {{{ */
   return (0);
 } /* }}} int graph_config_get_bool */
 
+const char *graph_config_get_cache_file (void) /* {{{ */
+{
+  if (cache_file == NULL)
+    return (CACHEFILE);
+  return (cache_file);
+} /* }}} char graph_config_get_cache_file */
+
 /* vim: set sw=2 sts=2 et fdm=marker : */
diff --git a/src/graph_config.h b/src/graph_config.h
index 5ccfadf..877bebc 100644
--- a/src/graph_config.h
+++ b/src/graph_config.h
@@ -31,5 +31,7 @@ int graph_read_config (void);
 int graph_config_get_string (const oconfig_item_t *ci, char **ret_str);
 int graph_config_get_bool (const oconfig_item_t *ci, _Bool *ret_bool);
 
+const char *graph_config_get_cache_file (void);
+
 /* vim: set sw=2 sts=2 et fdm=marker : */
 #endif /* GRAPH_CONFIG_H */
-- 
2.11.0