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tcflush(3c) [opensolaris man page]

tcflush(3C)						   Standard C Library Functions 					       tcflush(3C)

NAME
tcflush - flush non-transmitted output data, non-read input data or both SYNOPSIS
#include <termios.h> int tcflush(int fildes, int queue_selector); DESCRIPTION
Upon successful completion, tcflush() discards data written to the object referred to by fildes (an open file descriptor associated with a terminal) but not transmitted, or data received but not read, depending on the value of queue_selector: o If queue_selector is TCIFLUSH it flushes data received but not read. o If queue_selector is TCOFLUSH it flushes data written but not transmitted. o If queue_selector is TCIOFLUSH it flushes both data received but not read and data written but not transmitted. Attempts to use tcflush() from a process which is a member of a background process group on a fildes associated with its controlling termi- nal, will cause the process group to be sent a SIGTTOU signal. If the calling process is blocking or ignoring SIGTTOU signals, the process is allowed to perform the operation, and no signal is sent. RETURN VALUES
Upon successful completion, 0 is returned. Otherwise, -1 is returned and errno is set to indicate the error. ERRORS
The tcflush() function will fail if: EBADF The fildes argument is not a valid file descriptor. EINVAL The queue_selector argument is not a supported value. ENOTTY The file associated with fildes is not a terminal. The tcflush() function may fail if: EIO The process group of the writing process is orphaned, and the writing process is not ignoring or blocking SIGTTOU. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-------------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-------------------------------+ |Interface Stability |Standard | +-----------------------------+-------------------------------+ |MT-Level |MT-Safe, and Async-Signal-Safe | +-----------------------------+-------------------------------+ SEE ALSO
tcdrain(3C), attributes(5), standards(5), termio(7I) SunOS 5.11 14 Aug 2002 tcflush(3C)

Check Out this Related Man Page

TCFLUSH(3P)						     POSIX Programmer's Manual						       TCFLUSH(3P)

PROLOG
This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the correspond- ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux. NAME
tcflush -- flush non-transmitted output data, non-read input data, or both SYNOPSIS
#include <termios.h> int tcflush(int fildes, int queue_selector); DESCRIPTION
Upon successful completion, tcflush() shall discard data written to the object referred to by fildes (an open file descriptor associated with a terminal) but not transmitted, or data received but not read, depending on the value of queue_selector: * If queue_selector is TCIFLUSH, it shall flush data received but not read. * If queue_selector is TCOFLUSH, it shall flush data written but not transmitted. * If queue_selector is TCIOFLUSH, it shall flush both data received but not read and data written but not transmitted. Attempts to use tcflush() from a process which is a member of a background process group on a fildes associated with its controlling termi- nal shall cause the process group to be sent a SIGTTOU signal. If the calling thread is blocking SIGTTOU signals or the process is ignor- ing SIGTTOU signals, the process shall be allowed to perform the operation, and no signal is sent. RETURN VALUE
Upon successful completion, 0 shall be returned. Otherwise, -1 shall be returned and errno set to indicate the error. ERRORS
The tcflush() function shall fail if: EBADF The fildes argument is not a valid file descriptor. EINVAL The queue_selector argument is not a supported value. EIO The process group of the writing process is orphaned, the calling thread is not blocking SIGTTOU, and the process is not ignoring SIGTTOU. ENOTTY The file associated with fildes is not a terminal. The following sections are informative. EXAMPLES
None. APPLICATION USAGE
None. RATIONALE
None. FUTURE DIRECTIONS
None. SEE ALSO
tcdrain() The Base Definitions volume of POSIX.1-2008, Chapter 11, General Terminal Interface, <termios.h> COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition, Standard for Information Technol- ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C) 2013 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Stan- dard is the referee document. The original Standard can be obtained online at http://www.unix.org/online.html . Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source files to man page format. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html . IEEE
/The Open Group 2013 TCFLUSH(3P)
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