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/* $Header: /pjproject-0.3/pjlib/src/pj/sock_select.c 4 10/14/05 12:26a Bennylp $ */
/* $Log: /pjproject-0.3/pjlib/src/pj/sock_select.c $
*
* 4 10/14/05 12:26a Bennylp
* Finished error code framework, some fixes in ioqueue, etc. Pretty
* major.
*
* 3 9/21/05 1:39p Bennylp
* Periodic checkin for backup.
*
* 2 9/17/05 10:37a Bennylp
* Major reorganization towards version 0.3.
*
* 1 9/15/05 8:40p Bennylp
* Created.
*/
#include <pj/sock_select.h>
#include <pj/compat/socket.h>
#include <pj/os.h>
#include <pj/assert.h>
#include <pj/errno.h>
#ifdef _MSC_VER
# pragma warning(disable: 4018) // Signed/unsigned mismatch in FD_*
#endif
#define PART_FDSET(p_fdsetp) ((fd_set*)&p_fdsetp->data[1])
#define PART_COUNT(p_fdsetp) (p_fdsetp->data[0])
PJ_DEF(void) PJ_FD_ZERO(pj_fd_set_t *fdsetp)
{
PJ_CHECK_STACK();
pj_assert(sizeof(pj_fd_set_t)-sizeof(pj_sock_t) >= sizeof(fd_set));
FD_ZERO(PART_FDSET(fdsetp));
PART_COUNT(fdsetp) = 0;
}
PJ_DEF(void) PJ_FD_SET(pj_sock_t fd, pj_fd_set_t *fdsetp)
{
PJ_CHECK_STACK();
pj_assert(sizeof(pj_fd_set_t)-sizeof(pj_sock_t) >= sizeof(fd_set));
if (!PJ_FD_ISSET(fd, fdsetp))
++PART_COUNT(fdsetp);
FD_SET(fd, PART_FDSET(fdsetp));
}
PJ_DEF(void) PJ_FD_CLR(pj_sock_t fd, pj_fd_set_t *fdsetp)
{
PJ_CHECK_STACK();
pj_assert(sizeof(pj_fd_set_t)-sizeof(pj_sock_t) >= sizeof(fd_set));
if (PJ_FD_ISSET(fd, fdsetp))
--PART_COUNT(fdsetp);
FD_CLR(fd, PART_FDSET(fdsetp));
}
PJ_DEF(pj_bool_t) PJ_FD_ISSET(pj_sock_t fd, const pj_fd_set_t *fdsetp)
{
PJ_CHECK_STACK();
PJ_ASSERT_RETURN(sizeof(pj_fd_set_t)-sizeof(pj_sock_t) >= sizeof(fd_set),
0);
return FD_ISSET(fd, PART_FDSET(fdsetp));
}
PJ_DEF(pj_size_t) PJ_FD_COUNT(const pj_fd_set_t *fdsetp)
{
return PART_COUNT(fdsetp);
}
PJ_DEF(int) pj_sock_select( int n,
pj_fd_set_t *readfds,
pj_fd_set_t *writefds,
pj_fd_set_t *exceptfds,
const pj_time_val *timeout)
{
struct timeval os_timeout, *p_os_timeout;
PJ_CHECK_STACK();
PJ_ASSERT_RETURN(sizeof(pj_fd_set_t)-sizeof(pj_sock_t) >= sizeof(fd_set),
PJ_EBUG);
if (timeout) {
os_timeout.tv_sec = timeout->sec;
os_timeout.tv_usec = timeout->msec * 1000;
p_os_timeout = &os_timeout;
} else {
p_os_timeout = NULL;
}
return select(n, PART_FDSET(readfds), PART_FDSET(writefds),
PART_FDSET(exceptfds), p_os_timeout);
}
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