Implementation of _get_sbh_threshold and _set_sbh_threshold

dlls/msvcrt/heap.c

@@ -39,6 +39,8 @@ static int MSVCRT_new_mode;
 
 /* FIXME - According to documentation it should be 8*1024, at runtime it returns 16 */ 
 static unsigned int MSVCRT_amblksiz = 16;
+/* FIXME - According to documentation it should be 480 bytes, at runtime default is 0 */
+static size_t MSVCRT_sbh_threshold = 0;
 
 /*********************************************************************
  *		??2@YAPAXI@Z (MSVCRT.@)
@@ -291,3 +293,23 @@ unsigned int* __p__amblksiz(void)
 {
   return &MSVCRT_amblksiz;
 }
+
+/*********************************************************************
+ *		_get_sbh_threshold (MSVCRT.@)
+ */
+size_t _get_sbh_threshold(void)
+{
+  return MSVCRT_sbh_threshold;
+}
+
+/*********************************************************************
+ *		_set_sbh_threshold (MSVCRT.@)
+ */
+int _set_sbh_threshold(size_t threshold)
+{
+  if(threshold > 1016)
+     return 0;
+  else
+     MSVCRT_sbh_threshold = threshold;
+  return 1;
+}

dlls/msvcrt/msvcrt.spec

@@ -248,7 +248,7 @@
 @ cdecl _futime(long ptr)
 @ cdecl _gcvt(double long str)
 @ cdecl _get_osfhandle(long)
-@ stub _get_sbh_threshold #()
+@ cdecl _get_sbh_threshold()
 @ cdecl _getch()
 @ cdecl _getche()
 @ cdecl _getcwd(str long)
@@ -424,7 +424,7 @@
 @ cdecl _searchenv(str str ptr)
 @ stdcall -i386 _seh_longjmp_unwind(ptr)
 @ cdecl _set_error_mode(long)
-@ stub _set_sbh_threshold #(long)
+@ cdecl _set_sbh_threshold(long)
 @ cdecl _seterrormode(long)
 @ cdecl -i386 _setjmp(ptr) MSVCRT__setjmp
 @ cdecl -i386 _setjmp3(ptr long) MSVCRT__setjmp3

include/msvcrt/malloc.h

@@ -71,6 +71,9 @@ void        free(void*);
 void*       malloc(size_t);
 void*       realloc(void*,size_t);
 
+size_t _get_sbh_threshold(void);
+int _set_sbh_threshold(size_t size);
+
 #ifdef __cplusplus
 }
 #endif