[gnome-builder] ctags: get some insight into ctags performance with counters

[Christian Hergert <chergert src gnome org>]

commit dd7d64f2aa9e42d3f48299f43249f6a77e14aaec
Author: Christian Hergert <christian hergert me>
Date:   Sat May 16 01:48:14 2015 -0700

    ctags: get some insight into ctags performance with counters

 libide/ctags/ide-ctags-completion-item.c |   17 +++++++++++++++++
 libide/ctags/ide-ctags-index.c           |   16 ++++++++++++++++
 2 files changed, 33 insertions(+), 0 deletions(-)
---
diff --git a/libide/ctags/ide-ctags-completion-item.c b/libide/ctags/ide-ctags-completion-item.c
index 0c65204..8077a2c 100644
--- a/libide/ctags/ide-ctags-completion-item.c
+++ b/libide/ctags/ide-ctags-completion-item.c
@@ -20,9 +20,14 @@
 
 #include <glib/gi18n.h>
 
+#include "egg-counter.h"
+
 #include "ide-ctags-completion-item.h"
 #include "ide-ctags-index.h"
 
+EGG_DEFINE_COUNTER (instances, "IdeCtagsCompletionItem", "Instances",
+                    "Number of IdeCtagsCompletionItems")
+
 struct _IdeCtagsCompletionItem
 {
   GObject                     parent_instance;
@@ -65,13 +70,25 @@ ide_ctags_completion_item_compare (IdeCtagsCompletionItem *itema,
 }
 
 static void
+ide_ctags_completion_item_finalize (GObject *object)
+{
+  G_OBJECT_CLASS (ide_ctags_completion_item_parent_class)->finalize (object);
+
+  EGG_COUNTER_DEC (instances);
+}
+
+static void
 ide_ctags_completion_item_class_init (IdeCtagsCompletionItemClass *klass)
 {
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->finalize = ide_ctags_completion_item_finalize;
 }
 
 static void
 ide_ctags_completion_item_init (IdeCtagsCompletionItem *self)
 {
+  EGG_COUNTER_INC (instances);
 }
 
 static gchar *
diff --git a/libide/ctags/ide-ctags-index.c b/libide/ctags/ide-ctags-index.c
index dea733d..cd4891b 100644
--- a/libide/ctags/ide-ctags-index.c
+++ b/libide/ctags/ide-ctags-index.c
@@ -50,6 +50,8 @@ G_DEFINE_TYPE_WITH_CODE (IdeCtagsIndex, ide_ctags_index, IDE_TYPE_OBJECT,
                                                 async_initable_iface_init))
 
 EGG_DEFINE_COUNTER (instances, "IdeCtagsIndex", "Instances", "Number of IdeCtagsIndex instances.")
+EGG_DEFINE_COUNTER (index_entries, "IdeCtagsIndex", "N Entries", "Number of entries in indexes.")
+EGG_DEFINE_COUNTER (heap_size, "IdeCtagsIndex", "Heap Size", "Size of index string heaps.")
 
 static GParamSpec *gParamSpecs [LAST_PROP];
 
@@ -238,6 +240,9 @@ ide_ctags_index_build_index (GTask        *task,
   self->index = index;
   self->buffer = g_bytes_new_take (contents, length);
 
+  EGG_COUNTER_ADD (index_entries, (gint64)index->len);
+  EGG_COUNTER_ADD (heap_size, (gint64)length);
+
   g_task_return_boolean (task, TRUE);
 
   IDE_EXIT;
@@ -319,11 +324,22 @@ ide_ctags_index_finalize (GObject *object)
 {
   IdeCtagsIndex *self = (IdeCtagsIndex *)object;
 
+  if (self->index != NULL)
+    EGG_COUNTER_SUB (index_entries, (gint64)self->index->len);
+
+  if (self->buffer != NULL)
+    {
+      gsize len = g_bytes_get_size (self->buffer);
+      EGG_COUNTER_SUB (heap_size, (gint64)len);
+    }
+
   g_clear_object (&self->file);
   g_clear_pointer (&self->index, g_array_unref);
   g_clear_pointer (&self->buffer, g_bytes_unref);
 
   G_OBJECT_CLASS (ide_ctags_index_parent_class)->finalize (object);
+
+  EGG_COUNTER_DEC (instances);
 }
 
 static void