Get the number of bytes outstanding in the send queue.
#include <sys/sockio.h> #define FIONWRITE _IOR('f', 121, int)
Argument | Value |
---|---|
fd | A file descriptor that you obtained by opening the device |
request | FIONWRITE |
Additional argument | A pointer to an int |
This command gets the number of bytes outstanding in the send queue.
None.
The number of bytes.
ioctl() in the QNX Neutrino C Library Reference