New API function (GC_get_hblk_size) to get HBLKSIZE value

Issue #460 (bdwgc).

* include/gc/gc_mark.h (GC_get_hblk_size): New API function (declared
as const).
* misc.c (GC_get_hblk_size): Implement (returns HBLKSIZE).
* tests/gctest.c [GC_PTHREADS] (main): Call GC_get_hblk_size().

1 files changed, 5 insertions, 0 deletions

diff --git a/misc.c b/misc.c
index a3589d11..6ccc196f 100644
--- a/misc.c
+++ b/misc.c
@@ -2659,6 +2659,11 @@ GC_API void GC_CALL GC_abort_on_oom(void)
     EXIT();
 }
 
+GC_API size_t GC_CALL GC_get_hblk_size(void)
+{
+    return (size_t)HBLKSIZE;
+}
+
 #ifdef THREADS
   GC_API void GC_CALL GC_stop_world_external(void)
   {