Warning: main(/www/www/htdocs/style/globals.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/lib_ref/t/tcischars.html on line 1

Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/globals.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/lib_ref/t/tcischars.html on line 1

Warning: main(/www/www/htdocs/style/header.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/lib_ref/t/tcischars.html on line 8

Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/header.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/lib_ref/t/tcischars.html on line 8

tcischars()

Determine the number of characters waiting to be read

Synopsis:

#include <termios.h>

int tcischars( int filedes );

Arguments:

fildes
A file descriptor that's associated with the device that you want to check.

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

The tcischars() function checks to see how many characters are waiting to be read from the given file descriptor, filedes.

Returns:

The number of characters waiting to be read, or -1 if an error occurred.

Errors:

ENOTTY
The fd argument isn't the file descriptor for a character device.

Classification:

QNX Neutrino

Safety:
Cancellation point No
Interrupt handler No
Signal handler Yes
Thread Yes

Warning: main(/www/www/htdocs/style/footer.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/lib_ref/t/tcischars.html on line 115

Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/footer.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/lib_ref/t/tcischars.html on line 115