From ef431f56a6cfd1361bc1f37006532137cf49a165 Mon Sep 17 00:00:00 2001
From: Florian Forster <ff@octo.it>
Date: Wed, 23 Jun 2010 08:37:36 +0200
Subject: [PATCH] src/graph_instance.[ch]: Implement "inst_matches_field".

---
 src/graph_instance.c | 40 ++++++++++++++++++++++++++++++++++++++++
 src/graph_instance.h |  4 ++++
 2 files changed, 44 insertions(+)

diff --git a/src/graph_instance.c b/src/graph_instance.c
index e560527..109316f 100644
--- a/src/graph_instance.c
+++ b/src/graph_instance.c
@@ -415,6 +415,46 @@ _Bool inst_matches_string (graph_config_t *cfg, /* {{{ */
   return (1);
 } /* }}} _Bool inst_matches_string */
 
+_Bool inst_matches_field (graph_instance_t *inst, /* {{{ */
+    graph_ident_field_t field, const char *field_value)
+{
+  const char *selector_field;
+  size_t i;
+
+  if ((inst == NULL) || (field_value == NULL))
+    return (0);
+
+  selector_field = ident_get_field (inst->select, field);
+  if (selector_field == NULL)
+    return (0);
+
+  assert (!IS_ANY (selector_field));
+  if (!IS_ALL (selector_field))
+  {
+    if (strcasecmp (selector_field, field_value) == 0)
+      return (1);
+    else
+      return (0);
+  }
+
+  /* The selector field is an ALL selector
+   * => we need to check the files to see if the instance matches. */
+  for (i = 0; i < inst->files_num; i++)
+  {
+    selector_field = ident_get_field (inst->files[i], field);
+    if (selector_field == NULL)
+      continue;
+
+    assert (!IS_ANY (selector_field));
+    assert (!IS_ALL (selector_field));
+
+    if (strcasecmp (selector_field, field_value) == 0)
+      return (1);
+  } /* for files */
+
+  return (0);
+} /* }}} _Bool inst_matches_field */
+
 int inst_describe (graph_config_t *cfg, graph_instance_t *inst, /* {{{ */
     char *buffer, size_t buffer_size)
 {
diff --git a/src/graph_instance.h b/src/graph_instance.h
index f0425d2..1baccc6 100644
--- a/src/graph_instance.h
+++ b/src/graph_instance.h
@@ -4,6 +4,7 @@
 #include <time.h>
 
 #include "graph_types.h"
+#include "graph_ident.h"
 #include "utils_array.h"
 
 /*
@@ -33,6 +34,9 @@ _Bool inst_matches_ident (graph_instance_t *inst, const graph_ident_t *ident);
 _Bool inst_matches_string (graph_config_t *cfg, graph_instance_t *inst,
     const char *term);
 
+_Bool inst_matches_field (graph_instance_t *inst,
+    graph_ident_field_t field, const char *field_value);
+
 int inst_describe (graph_config_t *cfg, graph_instance_t *inst,
     char *buffer, size_t buffer_size);
 
-- 
2.11.0