diff options
Diffstat (limited to 'libio/memstream.c')
-rw-r--r-- | libio/memstream.c | 35 |
1 files changed, 18 insertions, 17 deletions
diff --git a/libio/memstream.c b/libio/memstream.c index 7fa5245e72..b5eaa5476c 100644 --- a/libio/memstream.c +++ b/libio/memstream.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1995-2016 Free Software Foundation, Inc. +/* Copyright (C) 1995-2018 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -25,15 +25,15 @@ struct _IO_FILE_memstream { _IO_strfile _sf; char **bufloc; - _IO_size_t *sizeloc; + size_t *sizeloc; }; -static int _IO_mem_sync (_IO_FILE* fp) __THROW; -static void _IO_mem_finish (_IO_FILE* fp, int) __THROW; +static int _IO_mem_sync (FILE* fp) __THROW; +static void _IO_mem_finish (FILE* fp, int) __THROW; -static const struct _IO_jump_t _IO_mem_jumps = +static const struct _IO_jump_t _IO_mem_jumps libio_vtable = { JUMP_INIT_DUMMY, JUMP_INIT (finish, _IO_mem_finish), @@ -60,8 +60,8 @@ static const struct _IO_jump_t _IO_mem_jumps = /* Open a stream that writes into a malloc'd buffer that is expanded as necessary. *BUFLOC and *SIZELOC are updated with the buffer's location and the number of characters written on fflush or fclose. */ -_IO_FILE * -__open_memstream (char **bufloc, _IO_size_t *sizeloc) +FILE * +__open_memstream (char **bufloc, size_t *sizeloc) { struct locked_FILE { @@ -80,30 +80,33 @@ __open_memstream (char **bufloc, _IO_size_t *sizeloc) new_f->fp._sf._sbf._f._lock = &new_f->lock; #endif - buf = calloc (1, _IO_BUFSIZ); + buf = calloc (1, BUFSIZ); if (buf == NULL) { free (new_f); return NULL; } - _IO_init (&new_f->fp._sf._sbf._f, 0); + _IO_init_internal (&new_f->fp._sf._sbf._f, 0); _IO_JUMPS_FILE_plus (&new_f->fp._sf._sbf) = &_IO_mem_jumps; - _IO_str_init_static_internal (&new_f->fp._sf, buf, _IO_BUFSIZ, buf); + _IO_str_init_static_internal (&new_f->fp._sf, buf, BUFSIZ, buf); new_f->fp._sf._sbf._f._flags &= ~_IO_USER_BUF; - new_f->fp._sf._s._allocate_buffer = (_IO_alloc_type) malloc; - new_f->fp._sf._s._free_buffer = (_IO_free_type) free; + new_f->fp._sf._s._allocate_buffer_unused = (_IO_alloc_type) malloc; + new_f->fp._sf._s._free_buffer_unused = (_IO_free_type) free; new_f->fp.bufloc = bufloc; new_f->fp.sizeloc = sizeloc; - return (_IO_FILE *) &new_f->fp._sf._sbf; + /* Disable single thread optimization. BZ 21735. */ + new_f->fp._sf._sbf._f._flags2 |= _IO_FLAGS2_NEED_LOCK; + + return (FILE *) &new_f->fp._sf._sbf; } libc_hidden_def (__open_memstream) weak_alias (__open_memstream, open_memstream) static int -_IO_mem_sync (_IO_FILE *fp) +_IO_mem_sync (FILE *fp) { struct _IO_FILE_memstream *mp = (struct _IO_FILE_memstream *) fp; @@ -112,8 +115,6 @@ _IO_mem_sync (_IO_FILE *fp) _IO_str_overflow (fp, '\0'); --fp->_IO_write_ptr; } - else - *fp->_IO_write_ptr = '\0'; *mp->bufloc = fp->_IO_write_base; *mp->sizeloc = fp->_IO_write_ptr - fp->_IO_write_base; @@ -123,7 +124,7 @@ _IO_mem_sync (_IO_FILE *fp) static void -_IO_mem_finish (_IO_FILE *fp, int dummy) +_IO_mem_finish (FILE *fp, int dummy) { struct _IO_FILE_memstream *mp = (struct _IO_FILE_memstream *) fp; |