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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/r/rdchk.html on line 1
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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/r/rdchk.html on line 8
Check to see if a read is likely to succeed
#include <unix.h>
int rdchk( int fd );
- fd
- The file descriptor that you want to check.
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
|
This function is in libc.a, but not in libc.so
(in order to save space). |
The rdchk() function checks to see if a read from the
file descriptor, fd, is likely to succeed.
The number of characters waiting to be read, or -1 if an error occurred
(errno is set).
- ENOTTY
- The fd argument isn't the file descriptor for a
character device.
Unix
Safety: | |
Cancellation point |
No |
Interrupt handler |
No |
Signal handler |
Yes |
Thread |
Yes |
tcischars()
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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/r/rdchk.html on line 130