From 8c9a97f4cf9f8d55d48981f3d7170f27ce853ce5 Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@gmail.com>
Date: Tue, 14 Jun 2011 16:26:53 -0600
Subject: Add Timers to Python module.

---
 libdimension-python/dimension.pxd | 16 +++++++++++++++
 libdimension-python/dimension.pyx | 43 +++++++++++++++++++++++++++++++++++++++
 libdimension/dimension/timer.h    |  2 ++
 libdimension/timer.c              |  5 ++++-
 4 files changed, 65 insertions(+), 1 deletion(-)

diff --git a/libdimension-python/dimension.pxd b/libdimension-python/dimension.pxd
index 22e9764..f104e9c 100644
--- a/libdimension-python/dimension.pxd
+++ b/libdimension-python/dimension.pxd
@@ -63,6 +63,19 @@ cdef extern from "../libdimension/dimension.h":
   void dmnsn_array_remove(dmnsn_array *array, size_t i)
   void dmnsn_array_apply(dmnsn_array *array, dmnsn_callback_fn *callback)
 
+  ##########
+  # Timers #
+  ##########
+
+  ctypedef struct dmnsn_timer:
+    double real
+    double user
+    double system
+
+  dmnsn_timer *dmnsn_new_timer()
+  void dmnsn_complete_timer(dmnsn_timer *timer)
+  void dmnsn_delete_timer(dmnsn_timer *timer)
+
   ############
   # Geometry #
   ############
@@ -352,6 +365,9 @@ cdef extern from "../libdimension/dimension.h":
     double adc_bailout
     unsigned int nthreads
 
+    dmnsn_timer *bounding_timer
+    dmnsn_timer *render_timer
+
   dmnsn_scene *dmnsn_new_scene()
   void dmnsn_delete_scene(dmnsn_scene *scene)
 
diff --git a/libdimension-python/dimension.pyx b/libdimension-python/dimension.pyx
index 54b7e66..442394b 100644
--- a/libdimension-python/dimension.pyx
+++ b/libdimension-python/dimension.pyx
@@ -27,6 +27,42 @@ import os
 def dieOnWarnings(alwaysDie):
   dmnsn_die_on_warnings(alwaysDie)
 
+##########
+# Timers #
+##########
+
+cdef class Timer:
+  cdef dmnsn_timer *_timer
+
+  def __init__(self):
+    self._timer = dmnsn_new_timer()
+
+  def __dealloc__(self):
+    dmnsn_delete_timer(self._timer)
+
+  def complete(self):
+    dmnsn_complete_timer(self._timer)
+
+  property real:
+    def __get__(self):
+      return self._timer.real
+  property user:
+    def __get__(self):
+      return self._timer.user
+  property system:
+    def __get__(self):
+      return self._timer.system
+
+  def __str__(self):
+    return '%.2fs (user: %.2fs; system: %.2fs)' % \
+           (self._timer.real, self._timer.user, self._timer.system)
+
+cdef _rawTimer(dmnsn_timer *timer):
+  cdef Timer self = Timer.__new__(Timer)
+  self._timer = timer
+  DMNSN_INCREF(self._timer)
+  return self
+
 ############
 # Geometry #
 ############
@@ -887,6 +923,13 @@ cdef class Scene:
     def __set__(self, n):
       self._scene.nthreads = n
 
+  property boundingTimer:
+    def __get__(self):
+      return _rawTimer(self._scene.bounding_timer)
+  property renderTimer:
+    def __get__(self):
+      return _rawTimer(self._scene.render_timer)
+
   def raytrace(self):
     # Ensure the default texture is complete
     cdef Texture default = Texture(Black)
diff --git a/libdimension/dimension/timer.h b/libdimension/dimension/timer.h
index 0a1fde9..bd72a90 100644
--- a/libdimension/dimension/timer.h
+++ b/libdimension/dimension/timer.h
@@ -28,6 +28,8 @@ typedef struct dmnsn_timer {
   double real;   /**< Wall-clock time. */
   double user;   /**< Time spent executing. */
   double system; /**< Time spent waiting for the system. */
+
+  dmnsn_refcount refcount; /**< @internal Reference count. */
 } dmnsn_timer;
 
 /** A standard format string for timers. */
diff --git a/libdimension/timer.c b/libdimension/timer.c
index 0e120ce..ad0fd9b 100644
--- a/libdimension/timer.c
+++ b/libdimension/timer.c
@@ -30,6 +30,7 @@ dmnsn_new_timer(void)
 {
   dmnsn_timer *timer = dmnsn_malloc(sizeof(dmnsn_timer));
   dmnsn_get_times(timer);
+  timer->refcount = 1;
   return timer;
 }
 
@@ -46,5 +47,7 @@ dmnsn_complete_timer(dmnsn_timer *timer)
 void
 dmnsn_delete_timer(dmnsn_timer *timer)
 {
-  dmnsn_free(timer);
+  if (DMNSN_DECREF(timer)) {
+    dmnsn_free(timer);
+  }
 }
-- 
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