os_type.c
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:1k
- /*-
- * See the file LICENSE for redistribution information.
- *
- * Copyright (c) 1998-2002
- * Sleepycat Software. All rights reserved.
- */
- #include "db_config.h"
- #ifndef lint
- static const char revid[] = "$Id: os_type.c,v 11.6 2002/01/11 15:53:08 bostic Exp $";
- #endif /* not lint */
- /*
- * __os_is_winnt --
- * Return 1 if Windows/NT, otherwise 0.
- *
- * PUBLIC: int __os_is_winnt __P((void));
- */
- int
- __os_is_winnt()
- {
- static int __os_type = -1;
- /*
- * The value of __os_type is computed only once, and cached to
- * avoid the overhead of repeated calls to GetVersion().
- */
- if (__os_type == -1) {
- if ((GetVersion() & 0x80000000) == 0)
- __os_type = 1;
- else
- __os_type = 0;
- }
- return (__os_type);
- }