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2004-03-09 Thomas Pfaff <tpfaff@gmx.net> 

* libc/stdio/findfp.c (__sfp): Rename lock to __sfp_lock.
        Change __sfp_lock to static global.
        (__fp_lock): New static function.
        (__fp_unlock): Ditto.
        (__fp_lock_all): New function.
        (__fp_unlock_all): Ditto.
This commit is contained in:
Jeff Johnston 2004-03-09 21:27:37 +00:00
parent 58e9df0f91
commit 41c3da6ae1
2 changed files with 55 additions and 5 deletions
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9
newlib/ChangeLog
View File

@ -1,3 +1,12 @@
2004-03-09 Thomas Pfaff <tpfaff@gmx.net>
* libc/stdio/findfp.c (__sfp): Rename lock to __sfp_lock.
Change __sfp_lock to static global.
(__fp_lock): New static function.
(__fp_unlock): Ditto.
(__fp_lock_all): New function.
(__fp_unlock_all): Ditto.
2004-02-10 Christopher Faylor <cgf@redhat.com>
* libm/mathfp/er_gamma.c (gamma): Add new non-reentrant function.

51
newlib/libc/stdio/findfp.c
View File

@ -25,6 +25,10 @@
#include <sys/lock.h>
#include "local.h"
#ifndef __SINGLE_THREAD__
__LOCK_INIT(static, __sfp_lock);
#endif
static void
std (ptr, flags, file, data)
FILE *ptr;
@ -87,9 +91,7 @@ __sfp (d)
struct _glue *g;
#ifndef __SINGLE_THREAD__
__LOCK_INIT(static, lock);
__lock_acquire(lock);
__lock_acquire(__sfp_lock);
#endif
if (!_GLOBAL_REENT->__sdidinit)
@ -104,7 +106,7 @@ __sfp (d)
break;
}
#ifndef __SINGLE_THREAD__
__lock_release(lock);
__lock_release(__sfp_lock);
#endif
d->_errno = ENOMEM;
return NULL;
@ -112,7 +114,7 @@ __sfp (d)
found:
fp->_flags = 1; /* reserve this slot; caller sets real flags */
#ifndef __SINGLE_THREAD__
__lock_release(lock);
__lock_release(__sfp_lock);
#endif
fp->_p = NULL; /* no current pointer */
fp->_w = 0; /* nothing to read or write */
@ -192,3 +194,42 @@ __sinit (s)
std (s->_stderr, __SWR | __SNBF, 2, s);
}
#ifndef __SINGLE_THREAD__
/* Walkable file locking routine. */
static int
__fp_lock (ptr)
FILE * ptr;
{
_flockfile(ptr);
return 0;
}
/* Walkable file unlocking routine. */
static int
__fp_unlock (ptr)
FILE * ptr;
{
_funlockfile(ptr);
return 0;
}
void
__fp_lock_all ()
{
__lock_acquire(__sfp_lock);
(void) _fwalk (_REENT, __fp_lock);
}
void
__fp_unlock_all ()
{
(void) _fwalk (_REENT, __fp_unlock);
__lock_release(__sfp_lock);
}
#endif