diff options
Diffstat (limited to 'StdLib/LibC/Stdio/setvbuf.c')
| -rw-r--r-- | StdLib/LibC/Stdio/setvbuf.c | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/StdLib/LibC/Stdio/setvbuf.c b/StdLib/LibC/Stdio/setvbuf.c deleted file mode 100644 index 9e01ea9dc1..0000000000 --- a/StdLib/LibC/Stdio/setvbuf.c +++ /dev/null @@ -1,180 +0,0 @@ -/** @file
- Implementation of setvbuf as declared in <stdio.h>.
-
- Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
- This program and the accompanying materials are licensed and made available
- under the terms and conditions of the BSD License that accompanies this
- distribution. The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.
-
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
- Copyright (c) 1990, 1993
- The Regents of the University of California. All rights reserved.
-
- This code is derived from software contributed to Berkeley by
- Chris Torek.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
- - Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- - Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in the
- documentation and/or other materials provided with the distribution.
- - Neither the name of the University nor the names of its contributors
- may be used to endorse or promote products derived from this software
- without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
- LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- POSSIBILITY OF SUCH DAMAGE.
-
- NetBSD: setvbuf.c,v 1.17 2003/08/07 16:43:31 agc Exp
- setvbuf.c 8.2 (Berkeley) 11/16/93
-**/
-#include <LibConfig.h>
-
-#include <assert.h>
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <wchar.h>
-#include "reentrant.h"
-#include "local.h"
-#include <MainData.h>
-
-/*
- * Set one of the three kinds of buffering, optionally including
- * a buffer.
- */
-int
-setvbuf(FILE *fp, char *buf, int mode, size_t size)
-{
- int ret, flags;
- size_t iosize;
- int ttyflag;
-
- _DIAGASSERT(fp != NULL);
- /* buf may be NULL */
- if(fp == NULL) {
- errno = EINVAL;
- return (EOF);
- }
-
- /*
- * Verify arguments. The `int' limit on `size' is due to this
- * particular implementation. Note, buf and size are ignored
- * when setting _IONBF.
- */
- if (mode != _IONBF)
- if ((mode != _IOFBF && mode != _IOLBF) || (int)size < 0)
- return (-1);
-
- FLOCKFILE(fp);
- /*
- * Write current buffer, if any. Discard unread input (including
- * ungetc data), cancel line buffering, and free old buffer if
- * malloc()ed. We also clear any eof condition, as if this were
- * a seek.
- */
- ret = 0;
- (void)__sflush(fp);
- if (HASUB(fp))
- FREEUB(fp);
- WCIO_FREE(fp);
- fp->_r = fp->_lbfsize = 0;
- flags = fp->_flags;
- if (flags & __SMBF)
- free((void *)fp->_bf._base);
- flags &= ~(__SLBF | __SNBF | __SMBF | __SOPT | __SNPT | __SEOF);
-
- /* If setting unbuffered mode, skip all the hard work. */
- if (mode == _IONBF)
- goto nbf;
-
- /*
- * Find optimal I/O size for seek optimization. This also returns
- * a `tty flag' to suggest that we check isatty(fd), but we do not
- * care since our caller told us how to buffer.
- */
- flags |= __swhatbuf(fp, &iosize, &ttyflag);
- if (size == 0) {
- buf = NULL; /* force local allocation */
- size = iosize;
- }
-
- /* Allocate buffer if needed. */
- if (buf == NULL) {
- if ((buf = malloc(size)) == NULL) {
- /*
- * Unable to honor user's request. We will return
- * failure, but try again with file system size.
- */
- ret = -1;
- if (size != iosize) {
- size = iosize;
- buf = malloc(size);
- }
- }
- if (buf == NULL) {
- /* No luck; switch to unbuffered I/O. */
-nbf:
- fp->_flags = (unsigned short)(flags | __SNBF);
- fp->_w = 0;
- fp->_bf._base = fp->_p = fp->_nbuf;
- fp->_bf._size = 1;
- FUNLOCKFILE(fp);
- return (ret);
- }
- flags |= __SMBF;
- }
-
- /*
- * Kill any seek optimization if the buffer is not the
- * right size.
- *
- * SHOULD WE ALLOW MULTIPLES HERE (i.e., ok iff (size % iosize) == 0)?
- */
- if (size != iosize)
- flags |= __SNPT;
-
- /*
- * Fix up the FILE fields, and set gMD->cleanup for output flush on
- * exit (since we are buffered in some way).
- */
- if (mode == _IOLBF)
- flags |= __SLBF;
- fp->_flags = (unsigned short)flags;
- fp->_bf._base = fp->_p = (unsigned char *)buf;
- fp->_bf._size = (int)size;
- /* fp->_lbfsize is still 0 */
- if (flags & __SWR) {
- /*
- * Begin or continue writing: see __swsetup(). Note
- * that __SNBF is impossible (it was handled earlier).
- */
- if (flags & __SLBF) {
- fp->_w = 0;
- fp->_lbfsize = -fp->_bf._size;
- } else
- fp->_w = (int)size;
- } else {
- /* begin/continue reading, or stay in intermediate state */
- fp->_w = 0;
- }
- gMD->cleanup = _cleanup;
-
- FUNLOCKFILE(fp);
- return (ret);
-}
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