src/graph.[ch]: Implement "graph_to_json".

diff --git a/src/graph.c b/src/graph.c
index 92fa02a..f664be1 100644 (file)
--- a/src/graph.c
+++ b/src/graph.c
@@ -606,12 +606,6 @@ int graph_compare (graph_config_t *cfg, const graph_ident_t *ident) /* {{{ */
   return (ident_compare (cfg->select, ident));
 } /* }}} int graph_compare */
 
-static int graph_sort_instances_cb (const void *v0, const void *v1) /* {{{ */
-{
-  return (inst_compare (*(graph_instance_t * const *) v0,
-        *(graph_instance_t * const *) v1));
-} /* }}} int graph_sort_instances_cb */
-
 size_t graph_num_instances (graph_config_t *cfg) /* {{{ */
 {
   if (cfg == NULL)
@@ -620,6 +614,34 @@ size_t graph_num_instances (graph_config_t *cfg) /* {{{ */
   return (cfg->instances_num);
 } /* }}} size_t graph_num_instances */
 
+int graph_to_json (const graph_config_t *cfg,
+    yajl_gen handler)
+{
+  size_t i;
+
+  if ((cfg == NULL) || (handler == NULL))
+    return (EINVAL);
+
+  yajl_gen_map_open (handler);
+  yajl_gen_string (handler,
+      (unsigned char *) "select",
+      (unsigned int) strlen ("select"));
+  ident_to_json (cfg->select, handler);
+  yajl_gen_array_open (handler);
+  for (i = 0; i < cfg->instances_num; i++)
+    inst_to_json (cfg->instances[i], handler);
+  yajl_gen_array_close (handler);
+  yajl_gen_map_close (handler);
+
+  return (0);
+}
+
+static int graph_sort_instances_cb (const void *v0, const void *v1) /* {{{ */
+{
+  return (inst_compare (*(graph_instance_t * const *) v0,
+        *(graph_instance_t * const *) v1));
+} /* }}} int graph_sort_instances_cb */
+
 int graph_sort_instances (graph_config_t *cfg) /* {{{ */
 {
   if (cfg == NULL)

diff --git a/src/graph.h b/src/graph.h
index 7dca2ce..0c4ff76 100644 (file)
--- a/src/graph.h
+++ b/src/graph.h
@@ -24,6 +24,8 @@
 #ifndef GRAPH_H
 #define GRAPH_H 1
 
+#include <yajl/yajl_gen.h>
+
 #include "graph_types.h"
 #include "graph_ident.h"
 #include "oconfig.h"
@@ -105,6 +107,8 @@ int graph_inst_search_field (graph_config_t *cfg,
 
 int graph_compare (graph_config_t *cfg, const graph_ident_t *ident);
 
+int graph_to_json (const graph_config_t *cfg, yajl_gen handler);
+
 size_t graph_num_instances (graph_config_t *cfg);
 
 int graph_sort_instances (graph_config_t *cfg);