File 04-track-live-dataset-size.patch of Package ruby-railsexpress

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File 04-track-live-dataset-size.patch of Package ruby-railsexpress

diff --git a/gc.c b/gc.c
index 7673687..4d9ca88 100644
--- gc.c.orig
+++ gc.c
@@ -248,7 +248,6 @@ getrusage_time(void)
     } while(0)
 #endif
 
-
 #if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__CYGWIN__)
 #pragma pack(push, 1) /* magic for reducing sizeof(RVALUE): 24 -> 20 */
 #endif
@@ -355,6 +354,7 @@ typedef struct rb_objspace {
     unsigned LONG_LONG gc_num_allocations;
     unsigned long live_objects;
     unsigned LONG_LONG allocated_objects;
+    unsigned long heap_slots_live_after_last_gc;
 } rb_objspace_t;
 
 #if defined(ENABLE_VM_OBJSPACE) && ENABLE_VM_OBJSPACE
@@ -388,6 +388,7 @@ int *ruby_initial_gc_stress_ptr = &rb_objspace.gc_stress;
 #define gc_num_allocations      objspace->gc_num_allocations
 #define live_objects            objspace->live_objects
 #define allocated_objects       objspace->allocated_objects
+#define heap_slots_live_after_last_gc objspace->heap_slots_live_after_last_gc
 #define finalizer_table 	objspace->final.table
 #define deferred_final_list	objspace->final.deferred
 #define mark_stack		objspace->markstack.buffer
@@ -1410,6 +1411,24 @@ rb_gc_time()
 #endif
 }
 
+/*
+ *  call-seq:
+ *     GC.heap_slots_live_after_last_gc    => Integer
+ *
+ *  Returns the number of heap slots which were live after the last garbage collection.
+ *
+ *     GC.heap_slots_live_after_last_gc    #=> 231223
+ *
+ */
+VALUE
+rb_gc_heap_slots_live_after_last_gc()
+{
+    rb_objspace_t *objspace = &rb_objspace;
+    return ULONG2NUM(heap_slots_live_after_last_gc);
+}
+
+
+
 VALUE rb_mGC;
 
 void
@@ -2616,6 +2635,7 @@ gc_sweep(rb_objspace_t *objspace)
     }
     during_gc = 0;
     live_objects = live;
+    heap_slots_live_after_last_gc = live;
 
     /* log gc stats if requested */
     if (do_gc_stats) {
@@ -3961,6 +3981,7 @@ Init_GC(void)
     rb_define_singleton_method(rb_mGC, "allocated_size", rb_gc_allocated_size, 0);
     rb_define_singleton_method(rb_mGC, "num_allocations", rb_gc_num_allocations, 0);
     rb_define_singleton_method(rb_mGC, "heap_slots", rb_gc_heap_slots, 0);
+    rb_define_singleton_method(rb_mGC, "heap_slots_live_after_last_gc", rb_gc_heap_slots_live_after_last_gc, 0);
     rb_define_const(rb_mGC, "HEAP_SLOT_SIZE", INT2FIX(sizeof(RVALUE)));
 
     rb_define_singleton_method(rb_mGC, "log", rb_gc_log, 1);

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File 04-track-live-dataset-size.patch of Package ruby-railsexpress

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