void MwSelect (void)
{
struct MW_UID_MESSAGE m;
int rc;
unsigned int timeout = 0;
/* perform pre-select duties, if any*/
if (scrdev.PreSelect)
scrdev.PreSelect (&scrdev);
/* Set up the timeout for the main select().
* If the mouse is captured we're probably moving a window,
* so poll quickly to allow other windows to repaint while
* checking for more event input.
*/
if (!dragwp) {
timeout = MwGetNextTimeoutValue (); /* returns ms*/
if (timeout < 10)
timeout = 10; /* 10ms required for vt fb switch*/
}
/* let's make sure that the type is invalid */
m.type = MV_UID_INVALID;
/* wait up to 100 milisecons for events */
rc = uid_read_message (&m, timeout);
/* return if timed-out or something went wrong */
if (rc < 0) {
if ( errno != ETIMEDOUT )
EPRINTF (" rc= %d, errno=%d\n", rc, errno);
else {
MwHandleTimers ();
}
return;
}
/* let's pass the event up to microwindows */
switch (m.type) {
case MV_UID_REL_POS: /* Mouse or Touch Screen event */
case MV_UID_ABS_POS:
m_mou = m;
while (MwCheckMouseEvent ()) continue;
break;
case MV_UID_KBD: /* KBD event */
m_kbd = m;
MwCheckKeyboardEvent();
break;
case MV_UID_TIMER: /* Microwindows does nothing with these.. */
case MV_UID_INVALID:
default:
break;
}
}
void
MwSelect(void)
{
/* If mouse data present, service it*/
if(mousedev.Poll())
while(MwCheckMouseEvent())
continue;
/* If keyboard data present, service it*/
if(kbddev.Poll())
while(MwCheckKeyboardEvent())
continue;
MwHandleTimers();
}
void
MwSelect(void)
{
fd_set rfds;
fd_set wfds;
fd_set efds;
int fd;
int e;
int setsize = 0;
UINT timeout;
struct timeval to;
/* perform pre-select duties, if any*/
if(scrdev.PreSelect)
scrdev.PreSelect(&scrdev);
/* Set up the FDs for use in the main select(): */
FD_ZERO(&rfds);
FD_ZERO(&wfds);
FD_ZERO(&efds);
if(mouse_fd >= 0) {
FD_SET(mouse_fd, &rfds);
if(mouse_fd > setsize)
setsize = mouse_fd;
}
if(keyb_fd >= 0) {
FD_SET(keyb_fd, &rfds);
if(keyb_fd > setsize)
setsize = keyb_fd;
}
/* handle registered file descriptors */
fd = userregfd_head;
while (fd != -1) {
if (userregfd[fd].read) FD_SET(fd, &rfds);
if (userregfd[fd].write) FD_SET(fd, &wfds);
if (userregfd[fd].except) FD_SET(fd, &efds);
if(fd > setsize) setsize = fd;
fd = userregfd[fd].next;
}
++setsize;
/* Set up the timeout for the main select(). If
* the mouse is captured we're probably moving a window,
* so poll quickly to allow other windows to repaint while
* checking for more event input.
*/
if(dragwp)
timeout = to.tv_sec = to.tv_usec = 0L;
else {
timeout = MwGetNextTimeoutValue(); /* returns ms*/
#if ANIMATEPALETTE
if(fade < 100)
timeout = 40;
#endif
if (!timeout) timeout = 10; /* temp kluge required for mdemo to run ok*/
#if MW_FEATURE_TIMERS
GdGetNextTimeout(&to, timeout);
#else /* if ! MW_FEATURE_TIMERS */
to.tv_sec = timeout / 1000;
to.tv_usec = (timeout % 1000) * 1000;
#endif /* ! MW_FEATURE_TIMERS */
}
/* Wait for some input on any of the fds in the set or a timeout: */
if((e = select(setsize, &rfds, &wfds, &efds, &to)) > 0) {
/* If data is present on the mouse fd, service it: */
if(mouse_fd >= 0 && FD_ISSET(mouse_fd, &rfds))
while(MwCheckMouseEvent())
continue;
/* If data is present on the keyboard fd, service it: */
if(keyb_fd >= 0 && FD_ISSET(keyb_fd, &rfds))
while(MwCheckKeyboardEvent())
continue;
/* If registered descriptor, handle it */
fd = userregfd_head;
while (fd != -1) {
if (userregfd[fd].read && FD_ISSET(fd, &rfds))
PostMessage(userregfd[fd].read, WM_FDINPUT, fd, 0);
if (userregfd[fd].write && FD_ISSET(fd, &wfds))
PostMessage(userregfd[fd].write, WM_FDOUTPUT, fd, 0);
if (userregfd[fd].except && FD_ISSET(fd, &efds))
PostMessage(userregfd[fd].except, WM_FDEXCEPT, fd, 0);
fd = userregfd[fd].next;
}
}
else if(e == 0) {
/* timeout has occured*/
#if MW_FEATURE_TIMERS
if(GdTimeout() == FALSE)
return;
#endif /* MW_FEATURE_TIMERS */
#if ANIMATEPALETTE
if(fade <= 100) {
setfadelevel(&scrdev, fade);
fade += 5;
}
#endif
MwHandleTimers();
} else
if(errno != EINTR)
EPRINTF("Select() call in main failed\n");
}
