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https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk
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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [stdio/] [fwalk.c] - Rev 551
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/* * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * Redistribution and use in source and binary forms are permitted * provided that the above copyright notice and this paragraph are * duplicated in all such forms and that any documentation, * advertising materials, and other materials related to such * distribution and use acknowledge that the software was developed * by the University of California, Berkeley. The name of the * University may not be used to endorse or promote products derived * from this software without specific prior written permission. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ /* No user fns here. Pesch 15apr92. */ #if defined(LIBC_SCCS) && !defined(lint) static char sccsid[] = "%W% (Berkeley) %G%"; #endif /* LIBC_SCCS and not lint */ #include <_ansi.h> #include <reent.h> #include <stdio.h> #include <stdlib.h> #include <errno.h> #include "local.h" static int _DEFUN(__fwalk, (ptr, function), struct _reent *ptr _AND register int (*function) (FILE *)) { register FILE *fp; register int n, ret = 0; register struct _glue *g; for (g = &ptr->__sglue; g != NULL; g = g->_next) for (fp = g->_iobs, n = g->_niobs; --n >= 0; fp++) if (fp->_flags != 0) { if (fp->_flags != 0 && fp->_file != -1) ret |= (*function) (fp); } return ret; } /* Special version of __fwalk where the function pointer is a reentrant I/O function (e.g. _fclose_r). */ static int _DEFUN(__fwalk_reent, (ptr, reent_function), struct _reent *ptr _AND register int (*reent_function) (struct _reent *, FILE *)) { register FILE *fp; register int n, ret = 0; register struct _glue *g; for (g = &ptr->__sglue; g != NULL; g = g->_next) for (fp = g->_iobs, n = g->_niobs; --n >= 0; fp++) if (fp->_flags != 0) { if (fp->_flags != 0 && fp->_file != -1) ret |= (*reent_function) (ptr, fp); } return ret; } int _DEFUN(_fwalk, (ptr, function), struct _reent *ptr _AND register int (*function)(FILE *)) { register int ret = 0; __sfp_lock_acquire (); /* Must traverse given list for streams. Note that _GLOBAL_REENT only walked once in exit(). */ ret |= __fwalk (ptr, function); __sfp_lock_release (); return ret; } /* Special version of _fwalk which handles a function pointer to a reentrant I/O function (e.g. _fclose_r). */ int _DEFUN(_fwalk_reent, (ptr, reent_function), struct _reent *ptr _AND register int (*reent_function) (struct _reent *, FILE *)) { register int ret = 0; __sfp_lock_acquire (); /* Must traverse given list for streams. Note that _GLOBAL_REENT only walked once in exit(). */ ret |= __fwalk_reent (ptr, reent_function); __sfp_lock_release (); return ret; }
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