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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 
     22 /*
     23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 /*	Copyright (c) 1988 AT&T	*/
     28 /*	  All Rights Reserved  	*/
     29 
     30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     31 
     32 #pragma weak _getc_unlocked = getc_unlocked
     33 
     34 #include "lint.h"
     35 #include "file64.h"
     36 #include "mtlib.h"
     37 #include <sys/types.h>
     38 #include <stdio.h>
     39 #include <thread.h>
     40 #include <synch.h>
     41 #include "stdiom.h"
     42 #include "mse.h"
     43 
     44 #undef getc
     45 #undef getc_unlocked
     46 
     47 int
     48 getc(FILE *iop)
     49 {
     50 	rmutex_t *lk;
     51 	int c;
     52 
     53 	FLOCKFILE(lk, iop);
     54 
     55 	_SET_ORIENTATION_BYTE(iop);
     56 
     57 	c = (--iop->_cnt < 0) ? __filbuf(iop) : *iop->_ptr++;
     58 	FUNLOCKFILE(lk);
     59 	return (c);
     60 }
     61 
     62 
     63 int
     64 getc_unlocked(FILE *iop)
     65 {
     66 	return ((--iop->_cnt < 0) ? __filbuf(iop) : *iop->_ptr++);
     67 }
     68