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#include <sys/types.h>
#include <fcntl.h>
#include "ndelay.h"
/**
* @file ndelay.c
* @author djb
* @ref qmail
* @brief delaying of IO operations
*/
#ifndef O_NONBLOCK
#define O_NONBLOCK O_NDELAY
#endif
int ndelay_on(int fd)
{
return fcntl(fd,F_SETFL,fcntl(fd,F_GETFL,0) | O_NONBLOCK);
}
int ndelay_off(int fd)
{
return fcntl(fd,F_SETFL,fcntl(fd,F_GETFL,0) & ~O_NONBLOCK);
}
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