SSelect.c File Reference

#include "syshdrs.h"

Include dependency graph for SSelect.c:

Go to the source code of this file.

Functions
void	SelectSetInit (SelectSetPtr const ssp, const double timeout)
void	SelectSetAdd (SelectSetPtr const ssp, const int fd)
void	SelectSetRemove (SelectSetPtr const ssp, const int fd)
int	SelectW (SelectSetPtr ssp, SelectSetPtr resultssp)
int	SelectR (SelectSetPtr ssp, SelectSetPtr resultssp)

Function Documentation

SelectR()

int SelectR	(	SelectSetPtr	ssp,
		SelectSetPtr	resultssp
	)

Definition at line 65 of file SSelect.c.

{
    int rc;
 
    do {
        memcpy(resultssp, ssp, sizeof(SelectSet));
        rc = select(resultssp->maxfd, SELECT_TYPE_ARG234 &resultssp->fds, NULL, NULL, SELECT_TYPE_ARG5 &resultssp->timeout);
    } while ((rc < 0) && (errno == EINTR));
    return (rc);
}   /* SelectR */

SelectSetAdd()

void SelectSetAdd	(	SelectSetPtr const	ssp,
		const int	fd
	)

Definition at line 23 of file SSelect.c.

{
    if (fd >= 0) {
        FD_SET(fd, &ssp->fds);
        if (ssp->maxfd < (fd + 1))
            ssp->maxfd = (fd + 1);
        ++ssp->numfds;
    }
}   /* SelectSetAdd */

SelectSetInit()

void SelectSetInit	(	SelectSetPtr const	ssp,
		const double	timeout
	)

Definition at line 4 of file SSelect.c.

{
    double i;
    long l;
 
    /* Inititalize SelectSet, which will clear the fd_set, the
     * timeval, and the maxfd and numfds to 0.
     */
    memset(ssp, 0, sizeof(SelectSet));
    l = (long) timeout;
    i = (double) l;
    ssp->timeout.tv_sec = l;
    ssp->timeout.tv_usec = (long) ((timeout - i) * 1000000.0);
}   /* SelectSetInit */

SelectSetRemove()

void SelectSetRemove	(	SelectSetPtr const	ssp,
		const int	fd
	)

Definition at line 37 of file SSelect.c.

{
    if ((fd >= 0) && (FD_ISSET(fd, &ssp->fds))) {
        FD_CLR(fd, &ssp->fds);
        /* Note that maxfd is left alone, even if maxfd was
         * this one.  That is okay.
         */
        --ssp->numfds;
    }
}   /* SelectSetRemove */

SelectW()

int SelectW	(	SelectSetPtr	ssp,
		SelectSetPtr	resultssp
	)

Definition at line 51 of file SSelect.c.

{
    int rc;
 
    do {
        memcpy(resultssp, ssp, sizeof(SelectSet));
        rc = select(resultssp->maxfd, NULL, SELECT_TYPE_ARG234 &resultssp->fds, NULL, SELECT_TYPE_ARG5 &resultssp->timeout);
    } while ((rc < 0) && (errno == EINTR));
    return (rc);
}   /* SelectW */