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bff334e090
2002-06-17 Jakub Jelinek <jakub@redhat.com> * elf/dl-lookup.c (_dl_debug_bindings): Use type_class 4 for TLS lookups. * elf/rtld.c (dl_main): Move TLS setup code before LD_TRACE_PRELINKING code. Print TLS modid and offset for modules containing PT_TLS segments. 2002-06-09 Jakub Jelinek <jakub@redhat.com> * sysdeps/unix/sysv/linux/i386/dl-brk.c: Move... * sysdeps/unix/sysv/linux/dl-brk.c: ...here. * sysdeps/unix/sysv/linux/i386/dl-sbrk.c: Move... * sysdeps/unix/sysv/linux/dl-sbrk.c: ...here. 2002-06-07 Jakub Jelinek <jakub@redhat.com> * nss/getXXbyYY_r.c (NEW, NEW1): Define. (NEW (REENTRANT_NAME)): Strong alias to INTERNAL (REENTRANT_NAME). (REENTRANT_NAME@@GLIBC_2.1.2): Use NEW (REENTRANT_NAME). * nss/getXXent_r.c (NEW, NEW1): Define. (NEW (REENTRANT_GETNAME)): Strong alias to INTERNAL (REENTRANT_GETNAME). (REENTRANT_GETNAME@@GLIBC_2.1.2): Use NEW (REENTRANT_GETNAME). 2002-06-21 Ulrich Drepper <drepper@redhat.com> * libio/fileops.c (_IO_file_setbuf_mmap): New function. (_IO_file_jumps_mmap): Use it. * libio/iosetvbuf.c: Don't call _IO_WSETBUF. * libio/libioP.h: Remove _IO_wdefault_setbuf and _IO_wdefault_setbuf_internal prorotypes. Add _IO_file_setbuf_mmap prototype. * libio/wfileops.c (_IO_wfile_setbuf): Removed. (_IO_wfile_jumps_mmap): Don't use it anymore. * libio/wgenops.c (_IO_wdefault_setbuf): Removed. * libio/memstream.c (_IO_wmem_jumps): Use _IO_default_setbuf not _IO_wdefault_setbuf. * libio/vswprintf.c (_IO_wstrn_jumps): Likewise. * libio/wstrops.c (_IO_wstr_jumps): Likewise. * stdio-common/vfprintf.c (_IO_helper_jumps): Likewise. 2002-06-05 Jakub Jelinek <jakub@redhat.com> * libio/Makefile (tests): Add tst-mmap-setvbuf. * libio/tst-mmap-setvbuf.c: New test.
108 lines
3.3 KiB
C
108 lines
3.3 KiB
C
/* Copyright (C) 1993,96,97,98,99,2000,2001,2002 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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As a special exception, if you link the code in this file with
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files compiled with a GNU compiler to produce an executable,
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that does not cause the resulting executable to be covered by
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the GNU Lesser General Public License. This exception does not
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however invalidate any other reasons why the executable file
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might be covered by the GNU Lesser General Public License.
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This exception applies to code released by its copyright holders
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in files containing the exception. */
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#include "libioP.h"
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#define _IOFBF 0 /* Fully buffered. */
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#define _IOLBF 1 /* Line buffered. */
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#define _IONBF 2 /* No buffering. */
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int
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_IO_setvbuf (fp, buf, mode, size)
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_IO_FILE *fp;
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char *buf;
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int mode;
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_IO_size_t size;
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{
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int result;
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CHECK_FILE (fp, EOF);
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_IO_cleanup_region_start ((void (*) (void *)) _IO_funlockfile, fp);
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_IO_flockfile (fp);
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switch (mode)
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{
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case _IOFBF:
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fp->_IO_file_flags &= ~_IO_LINE_BUF|_IO_UNBUFFERED;
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if (buf == NULL)
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{
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if (fp->_IO_buf_base == NULL)
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{
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/* There is no flag to distinguish between "fully buffered
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mode has been explicitly set" as opposed to "line
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buffering has not been explicitly set". In both
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cases, _IO_LINE_BUF is off. If this is a tty, and
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_IO_filedoalloc later gets called, it cannot know if
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it should set the _IO_LINE_BUF flag (because that is
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the default), or not (because we have explicitly asked
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for fully buffered mode). So we make sure a buffer
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gets allocated now, and explicitly turn off line
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buffering.
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A possibly cleaner alternative would be to add an
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extra flag, but then flags are a finite resource. */
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if (_IO_DOALLOCATE (fp) < 0)
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{
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result = EOF;
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goto unlock_return;
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}
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fp->_IO_file_flags &= ~_IO_LINE_BUF;
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}
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result = 0;
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goto unlock_return;
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}
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break;
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case _IOLBF:
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fp->_IO_file_flags &= ~_IO_UNBUFFERED;
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fp->_IO_file_flags |= _IO_LINE_BUF;
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if (buf == NULL)
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{
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result = 0;
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goto unlock_return;
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}
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break;
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case _IONBF:
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fp->_IO_file_flags &= ~_IO_LINE_BUF;
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fp->_IO_file_flags |= _IO_UNBUFFERED;
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buf = NULL;
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size = 0;
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break;
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default:
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result = EOF;
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goto unlock_return;
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}
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result = _IO_SETBUF (fp, buf, size) == NULL ? EOF : 0;
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unlock_return:
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_IO_funlockfile (fp);
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_IO_cleanup_region_end (0);
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return result;
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}
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INTDEF(_IO_setvbuf)
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#ifdef weak_alias
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weak_alias (_IO_setvbuf, setvbuf)
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#endif
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