Libc-763.13.tar.gz

[apple/libc.git] / sys / gettimeofday.c

diff --git a/sys/gettimeofday.c b/sys/gettimeofday.c
index eb5bca75eac0c0cca8936283e9a0b7cbf5e2869f..56d9312675909dce8811132af14d6405d55e19cd 100644 (file)
--- a/sys/gettimeofday.c
+++ b/sys/gettimeofday.c
@@ -1,10 +1,8 @@
 /*
- * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2003-2005 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
- * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
@@ -32,61 +30,45 @@
 #include <tzfile.h>
 #include <sys/time.h>
 #include <errno.h>
-#include <sys/syscall.h>
 #include <unistd.h>
 
 #define        __APPLE_API_PRIVATE
 #include <machine/cpu_capabilities.h>
 #undef __APPLE_API_PRIVATE
 
-#ifdef __ppc__
-#define        expand(arg)     strgfy(arg)
-#define        strgfy(arg)     #arg
+extern int __gettimeofday(struct timeval *, struct timezone *);
+extern int __commpage_gettimeofday(struct timeval *);
 
-static __attribute__ ((noinline))
-int    commpage_gettimeofday(struct timeval *tp)
+int gettimeofday (struct timeval *tp, void *vtzp)
 {
-    asm volatile("ba " expand(_COMM_PAGE_GETTIMEOFDAY) );
-    return 1;
-}
-#endif /* __ppc__ */
+       static int validtz = 0;
+       static struct timezone cached_tz = {0};
+       struct timezone *tzp = (struct timezone *)vtzp;
+       struct timeval atv;
 
-int gettimeofday (struct timeval *tp, struct timezone *tzp)
-{
-        static int validtz = 0;
-        static struct timezone cached_tz = {0};
-        struct timeval localtv;
-  
-        if (tp == NULL) {
-            tp = &localtv;
-        }
+       if (tp == NULL) {
+           if (tzp == NULL)
+               return  (0);
+           tp = &atv;
+       }
+
+       if (__commpage_gettimeofday(tp)) {              /* first try commpage */
+               if (__gettimeofday(tp, NULL) < 0) {     /* if it fails, use syscall */
+                       return (-1);
+               }
+       }
 
-#ifdef __ppc__
-        {
-            extern int __ppc_gettimeofday(struct timeval *, struct timezone *);
-    
-            if (commpage_gettimeofday(tp)) {           /* first try commpage */
-                if (__ppc_gettimeofday(tp,tzp)) {      /* if it fails, use syscall */
-                    return (-1);
-                }
-            }
-        }
-#else
-        if (syscall (SYS_gettimeofday, tp, tzp) < 0) {
-                return (-1);
-        }
-#endif
-        if (tzp) {
-            if (validtz == 0)  {
-                struct tm *localtm = localtime ((time_t *)&tp->tv_sec);
-                cached_tz.tz_dsttime = localtm->tm_isdst;
-                cached_tz.tz_minuteswest =
-                    (-localtm->tm_gmtoff / SECSPERMIN) +
-                    (localtm->tm_isdst * MINSPERHOUR);
-                validtz = 1;
-            }
-            tzp->tz_dsttime = cached_tz.tz_dsttime;
-            tzp->tz_minuteswest = cached_tz.tz_minuteswest;
-        }
-        return (0);
+       if (tzp) {
+           if (validtz == 0)  {
+               struct tm *localtm = localtime ((time_t *)&tp->tv_sec);
+               cached_tz.tz_dsttime = localtm->tm_isdst;
+               cached_tz.tz_minuteswest =
+                   (-localtm->tm_gmtoff / SECSPERMIN) +
+                   (localtm->tm_isdst * MINSPERHOUR);
+               validtz = 1;
+           }
+           tzp->tz_dsttime = cached_tz.tz_dsttime;
+           tzp->tz_minuteswest = cached_tz.tz_minuteswest;
+       }
+       return (0);
 }