diff options
Diffstat (limited to 'usr/src/lib/libc/port/stdio/flush.c')
| -rw-r--r-- | usr/src/lib/libc/port/stdio/flush.c | 54 |
1 files changed, 50 insertions, 4 deletions
diff --git a/usr/src/lib/libc/port/stdio/flush.c b/usr/src/lib/libc/port/stdio/flush.c index fb8d058e4c..7d3549ca0d 100644 --- a/usr/src/lib/libc/port/stdio/flush.c +++ b/usr/src/lib/libc/port/stdio/flush.c @@ -20,15 +20,12 @@ */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 1988, 2010, Oracle and/or its affiliates. All rights reserved. */ /* Copyright (c) 1988 AT&T */ /* All Rights Reserved */ -#pragma ident "%Z%%M% %I% %E% SMI" - #include "lint.h" #include "mtlib.h" #include "file64.h" @@ -723,6 +720,55 @@ fclose(FILE *iop) return (res); } +/* close all open streams */ +int +fcloseall(void) +{ + FPDECL(iop); + + struct _link_ *lp; + rmutex_t *lk; + + if (__libc_threaded) + cancel_safe_mutex_lock(&_first_link_lock); + + lp = &__first_link; + + do { + int i; + + FIRSTFP(lp, iop); + for (i = lp->niob; --i >= 0; NEXTFP(iop)) { + /* code stolen from fclose(), above */ + + FLOCKFILE(lk, iop); + if (iop->_flag == 0) { + FUNLOCKFILE(lk); + continue; + } + + /* Not unbuffered and opened for read and/or write? */ + if (!(iop->_flag & _IONBF) && + (iop->_flag & (_IOWRT | _IOREAD | _IORW))) + (void) _fflush_u(iop); + (void) close(GET_FD(iop)); + if (iop->_flag & _IOMYBUF) + free((char *)iop->_base - PUSHBACK); + iop->_base = NULL; + iop->_ptr = NULL; + iop->_cnt = 0; + iop->_flag = 0; /* marks it as available */ + FUNLOCKFILE(lk); + fcloses++; + } + } while ((lp = lp->next) != NULL); + + if (__libc_threaded) + cancel_safe_mutex_unlock(&_first_link_lock); + + return (0); +} + /* flush buffer, close fd but keep the stream used by freopen() */ int close_fd(FILE *iop) |