diff options
Diffstat (limited to 'stdio-common/vfprintf.c')
| -rw-r--r-- | stdio-common/vfprintf.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/stdio-common/vfprintf.c b/stdio-common/vfprintf.c index f167058d17..902a70df40 100644 --- a/stdio-common/vfprintf.c +++ b/stdio-common/vfprintf.c @@ -1886,6 +1886,10 @@ buffered_vfprintf (register _IO_FILE *s, const CHAR_T *format, /* Now print to helper instead. */ result = vfprintf (hp, format, args); + /* Lock stream. */ + __libc_cleanup_region_start ((void (*) (void *)) &_IO_funlockfile, s); + _IO_flockfile (s); + /* Now flush anything from the helper to the S. */ #ifdef COMPILE_WPRINTF if ((to_flush = (hp->_wide_data->_IO_write_ptr @@ -1893,16 +1897,20 @@ buffered_vfprintf (register _IO_FILE *s, const CHAR_T *format, { if ((int) _IO_sputn (s, hp->_wide_data->_IO_write_base, to_flush) != to_flush) - return -1; + result = -1; } #else if ((to_flush = hp->_IO_write_ptr - hp->_IO_write_base) > 0) { if ((int) _IO_sputn (s, hp->_IO_write_base, to_flush) != to_flush) - return -1; + result = -1; } #endif + /* Unlock the stream. */ + _IO_funlockfile (s); + __libc_cleanup_region_end (0); + return result; } |