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Diffstat (limited to 'newlib/libc/time/tzlock.c')
-rw-r--r-- | newlib/libc/time/tzlock.c | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/newlib/libc/time/tzlock.c b/newlib/libc/time/tzlock.c deleted file mode 100644 index ccfef7891..000000000 --- a/newlib/libc/time/tzlock.c +++ /dev/null @@ -1,56 +0,0 @@ -/* -FUNCTION -<<__tz_lock>>, <<__tz_unlock>>---lock time zone global variables - -INDEX - __tz_lock -INDEX - __tz_unlock - -ANSI_SYNOPSIS - #include "local.h" - void __tz_lock (void); - void __tz_unlock (void); - -TRAD_SYNOPSIS - void __tz_lock(); - void __tz_unlock(); - -DESCRIPTION -The <<tzset>> facility functions call these functions when they need to -ensure the values of global variables. The version of these routines -supplied in the library use the lock API defined in sys/lock.h. If multiple -threads of execution can call the time functions and give up scheduling in -the middle, then you you need to define your own versions of these functions -in order to safely lock the time zone variables during a call. If you do -not, the results of <<localtime>>, <<mktime>>, <<ctime>>, and <<strftime>> -are undefined. - -The lock <<__tz_lock>> may not be called recursively; that is, -a call <<__tz_lock>> will always lock all subsequent <<__tz_lock>> calls -until the corresponding <<__tz_unlock>> call on the same thread is made. -*/ - -#include <_ansi.h> -#include "local.h" -#include <sys/lock.h> - -#ifndef __SINGLE_THREAD__ -__LOCK_INIT(static, __tz_lock_object); -#endif - -_VOID -_DEFUN_VOID (__tz_lock) -{ -#ifndef __SINGLE_THREAD__ - __lock_acquire(__tz_lock_object); -#endif -} - -_VOID -_DEFUN_VOID (__tz_unlock) -{ -#ifndef __SINGLE_THREAD__ - __lock_release(__tz_lock_object); -#endif -} |