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");
}
void
GsSelect(GR_TIMEOUT timeout)
{
fd_set rfds;
int e;
int setsize = 0;
struct timeval tout;
struct timeval *to;
#if NONETWORK
int fd;
#endif
/* perform pre-select duties, if any*/
if(rootwp->psd->PreSelect)
rootwp->psd->PreSelect(rootwp->psd);
/* Set up the FDs for use in the main select(): */
FD_ZERO(&rfds);
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;
}
#ifdef MW_FEATURE_TWO_KEYBOARDS
if(keyb2_fd >= 0) {
FD_SET(keyb2_fd, &rfds);
if (keyb2_fd > setsize)
setsize = keyb2_fd;
}
#endif
#if NONETWORK
/* handle registered input file descriptors*/
for (fd = 0; fd < regfdmax; fd++) {
if (!FD_ISSET(fd, ®fdset))
continue;
FD_SET(fd, &rfds);
if (fd > setsize) setsize = fd;
}
#else /* not NONETWORK */
/* handle client socket connections*/
FD_SET(un_sock, &rfds);
if (un_sock > setsize) setsize = un_sock;
curclient = root_client;
while(curclient) {
if(curclient->waiting_for_event && curclient->eventhead) {
curclient->waiting_for_event = FALSE;
GrGetNextEventWrapperFinish(curclient->id);
return;
}
FD_SET(curclient->id, &rfds);
if(curclient->id > setsize) setsize = curclient->id;
curclient = curclient->next;
}
#endif /* NONETWORK */
/* Set up the timeout for the main select(): */
if (timeout == (GR_TIMEOUT) -1L) {
/* poll*/
tout.tv_sec = 0;
tout.tv_usec = 0;
to = &tout;
} else {
#if MW_FEATURE_TIMERS
if(GdGetNextTimeout(&tout, timeout) == TRUE)
to = &tout;
else
#endif /* MW_FEATURE_TIMERS */
to = NULL;
}
/* Wait for some input on any of the fds in the set or a timeout: */
if((e = select(setsize+1, &rfds, NULL, NULL, to)) > 0) {
/* If data is present on the mouse fd, service it: */
if(mouse_fd >= 0 && FD_ISSET(mouse_fd, &rfds))
while(GsCheckMouseEvent())
continue;
/* If data is present on the keyboard fd, service it: */
if( (keyb_fd >= 0 && FD_ISSET(keyb_fd, &rfds))
#ifdef MW_FEATURE_TWO_KEYBOARDS
|| (keyb2_fd >= 0 && FD_ISSET(keyb2_fd, &rfds))
#endif
)
while(GsCheckKeyboardEvent())
continue;
#if NONETWORK
/* check for input on registered file descriptors */
for (fd = 0; fd < regfdmax; fd++) {
GR_EVENT_FDINPUT * gp;
if (!FD_ISSET(fd, ®fdset) || !FD_ISSET(fd, &rfds))
continue;
gp =(GR_EVENT_FDINPUT *)GsAllocEvent(curclient);
if(gp) {
gp->type = GR_EVENT_TYPE_FDINPUT;
gp->fd = fd;
}
}
#else /* not NONETWORK */
/* If a client is trying to connect, accept it: */
if(FD_ISSET(un_sock, &rfds))
GsAcceptClient();
/* If a client is sending us a command, handle it: */
curclient = root_client;
while(curclient) {
GR_CLIENT *curclient_next;
/* curclient may be freed in GsDropClient*/
curclient_next = curclient->next;
if(FD_ISSET(curclient->id, &rfds))
GsHandleClient(curclient->id);
curclient = curclient_next;
}
#endif /* NONETWORK */
}
else if (e == 0) {
#if NONETWORK
/*
* Timeout has occured. Currently return
* a timeout event regardless of whether
* client has selected for it.
* Note: this will be changed back to GR_EVENT_TYPE_NONE
* for the GrCheckNextEvent/LINK_APP_TO_SERVER case
*/
#if MW_FEATURE_TIMERS
if(GdTimeout() == TRUE)
#endif
{
GR_EVENT_GENERAL * gp;
gp = (GR_EVENT_GENERAL *)GsAllocEvent(curclient);
if(gp)
gp->type = GR_EVENT_TYPE_TIMEOUT;
}
#else /* not NONETWORK */
#if MW_FEATURE_TIMERS
GdTimeout();
#endif
#endif /* NONETWORK */
} else
if(errno != EINTR)
EPRINTF("Select() call in main failed\n");
}
void
GsSelect (GR_TIMEOUT timeout)
{
struct MW_UID_MESSAGE m;
long uid_timeout;
GR_EVENT_GENERAL *gp;
int rc;
#if MW_FEATURE_TIMERS
struct timeval tout;
#endif
/* perform pre-select duties, if any*/
if (scrdev.PreSelect)
scrdev.PreSelect(&scrdev);
/* let's make sure that the type is invalid */
m.type = MV_UID_INVALID;
/* wait up for events */
if (timeout == (GR_TIMEOUT) -1)
uid_timeout = 0;
else {
#if MW_FEATURE_TIMERS
if (GdGetNextTimeout(&tout, timeout))
uid_timeout = tout.tv_sec * 1000 + (tout.tv_usec + 500) / 1000;
else
#endif
{
if (timeout == 0)
uid_timeout = (unsigned long) -1;
else
uid_timeout = timeout;
}
}
rc = uid_read_message (&m, uid_timeout);
/* return if timed-out or something went wrong */
if (rc < 0)
{
if (errno != ETIMEDOUT)
EPRINTF(" rc= %d, errno=%d\n", rc, errno);
else
{
#if MW_FEATURE_TIMERS
/* check for timer timeouts and service if found*/
if (GdTimeout())
#else
if (timeout != 0)
#endif
{
/*
* Timeout has occured. Currently return a timeout event
* regardless of whether client has selected for it.
*/
if ((gp = (GR_EVENT_GENERAL *)GsAllocEvent(curclient)) != NULL)
gp->type = GR_EVENT_TYPE_TIMEOUT;
}
}
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 (GsCheckMouseEvent())
continue;
break;
case MV_UID_KBD: /* KBD event */
m_kbd = m;
GsCheckKeyboardEvent ();
break;
case MV_UID_TIMER: /* Microwindows does nothing with these.. */
case MV_UID_INVALID:
default:
break;
}
}
void
GsSelect(GR_TIMEOUT timeout)
{
int numevents = 0;
GR_TIMEOUT waittime = 0;
GR_EVENT_GENERAL *gp;
#if MW_FEATURE_TIMERS
struct timeval tout;
if (timeout != (GR_TIMEOUT)-1L)
GdGetNextTimeout(&tout, timeout); /* set initial mainloop timeout*/
#endif
#if EMSCRIPTEN
if (timeout == (GR_TIMEOUT)-1L)
timeout = 1; /* need to give up some CPU in GdDelay even on poll*/
#endif
/* input gathering loop */
while (1)
{
/* perform single update of aggregate screen update region*/
if(scrdev.PreSelect)
scrdev.PreSelect(&scrdev);
/* poll for mouse data and service if found*/
while (GsCheckMouseEvent())
if (++numevents > 10)
break; /* don't handle too many events at one shot*/
/* poll for keyboard data and service if found*/
while (GsCheckKeyboardEvent())
if (++numevents > 10)
break; /* don't handle too many events at one shot*/
/* did we handle any input or were we just polling?*/
if (numevents || timeout == (GR_TIMEOUT)-1L)
return; /* yes - return without sleeping*/
/* give up time-slice & sleep for a bit */
GdDelay(WAITTIME);
waittime += WAITTIME;
/* have we timed out? */
if (waittime >= timeout)
{
#if MW_FEATURE_TIMERS
/* check for timer timeouts and service if found*/
if (GdTimeout())
#else
/* special case: polling when timeout == 0 -- don't send timeout event */
if (timeout != 0)
#endif
{
/* Timeout has occured.
* Currently return a timeout event regardless of whether client
* has selected for it.
*/
if ((gp = (GR_EVENT_GENERAL *)GsAllocEvent(curclient)) != NULL)
gp->type = GR_EVENT_TYPE_TIMEOUT;
}
return;
}
}
}
void
GsSelect(GR_TIMEOUT timeout)
{
fd_set rfds;
int e;
int setsize = 0;
struct timeval tout;
struct timeval *to;
#if NONETWORK
int fd;
#endif
#if HAVE_VNCSERVER
#if VNCSERVER_PTHREADED
int dummy;
#else
rfbClientIteratorPtr i;
rfbClientPtr cl;
#endif
#endif
/* X11/SDL perform single update of aggregate screen update region*/
if (scrdev.PreSelect)
{
/* returns # pending events*/
if (scrdev.PreSelect(&scrdev))
{
/* poll for mouse data and service if found*/
while (GsCheckMouseEvent())
continue;
/* poll for keyboard data and service if found*/
while (GsCheckKeyboardEvent())
continue;
/* events found, return with no sleep*/
return;
}
}
/* Set up the FDs for use in the main select(): */
FD_ZERO(&rfds);
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;
}
#if MW_FEATURE_TWO_KEYBOARDS
if(keyb2_fd >= 0)
{
FD_SET(keyb2_fd, &rfds);
if (keyb2_fd > setsize)
setsize = keyb2_fd;
}
#endif
#if NONETWORK
/* handle registered input file descriptors*/
for (fd = 0; fd < regfdmax; fd++)
{
if (!FD_ISSET(fd, ®fdset))
continue;
FD_SET(fd, &rfds);
if (fd > setsize) setsize = fd;
}
#else /* !NONETWORK */
/* handle client socket connections*/
FD_SET(un_sock, &rfds);
if (un_sock > setsize) setsize = un_sock;
curclient = root_client;
while(curclient)
{
if(curclient->waiting_for_event && curclient->eventhead)
{
curclient->waiting_for_event = FALSE;
GrGetNextEventWrapperFinish(curclient->id);
return;
}
FD_SET(curclient->id, &rfds);
if(curclient->id > setsize) setsize = curclient->id;
curclient = curclient->next;
}
#endif /* NONETWORK */
#if HAVE_VNCSERVER
#if VNCSERVER_PTHREADED
/* Add file vnc thread fd. This is useful to force handling of events generated by the VNC thread*/
FD_SET( vnc_thread_fd, &(rfds) );
if ( vnc_thread_fd > setsize )
setsize = vnc_thread_fd;
#else
/* Add all VNC open sockets to nano-X select set */
FD_SET( rfbScreen->listenSock, &(rfds) );
if ( rfbScreen->listenSock > setsize )
setsize = rfbScreen->listenSock;
FD_SET( rfbScreen->httpListenSock, &(rfds) );
if ( rfbScreen->httpListenSock > setsize )
setsize = rfbScreen->httpListenSock;
i = rfbGetClientIterator(rfbScreen);
cl = rfbClientIteratorNext(i);
while ( cl ) {
if ( cl->sock >= 0 ) {
FD_SET( cl->sock, &(rfds) );
if ( cl->sock > setsize )
setsize = cl->sock;
}
cl = rfbClientIteratorNext(i);
}
rfbReleaseClientIterator(i);
#endif
#endif /* HAVE_VNCSERVER*/
/* setup timeval struct for block or poll in select()*/
tout.tv_sec = tout.tv_usec = 0; /* setup for assumed poll*/
to = &tout;
int poll = (timeout == (GR_TIMEOUT) -1L); /* timeout = -1 means just poll*/
if (!poll)
{
#if MW_FEATURE_TIMERS
/* get next timer or use passed timeout and convert to timeval struct*/
if (!GdGetNextTimeout(&tout, timeout)) /* no app timers or VTSWITCH?*/
#else
if (timeout) /* setup mwin poll timer*/
{
/* convert wait timeout to timeval struct*/
tout.tv_sec = timeout / 1000;
tout.tv_usec = (timeout % 1000) * 1000;
}
else
#endif
{
to = NULL; /* no timers, block*/
}
}
/* some drivers can't block in select as backend is poll based (SDL)*/
if (scrdev.flags & PSF_CANTBLOCK)
{
#define WAITTIME 100
/* check if would block permanently or timeout > WAITTIME*/
if (to == NULL || tout.tv_sec != 0 || tout.tv_usec > WAITTIME)
{
/* override timeouts and wait for max WAITTIME ms*/
to = &tout;
tout.tv_sec = 0;
tout.tv_usec = WAITTIME;
}
}
/* Wait for some input on any of the fds in the set or a timeout*/
#if NONETWORK
SERVER_UNLOCK(); /* allow other threads to run*/
#endif
e = select(setsize+1, &rfds, NULL, NULL, to);
#if NONETWORK
SERVER_LOCK();
#endif
if(e > 0) /* input ready*/
{
/* service mouse file descriptor*/
if(mouse_fd >= 0 && FD_ISSET(mouse_fd, &rfds))
while(GsCheckMouseEvent())
continue;
/* service keyboard file descriptor*/
if( (keyb_fd >= 0 && FD_ISSET(keyb_fd, &rfds))
#if MW_FEATURE_TWO_KEYBOARDS
|| (keyb2_fd >= 0 && FD_ISSET(keyb2_fd, &rfds))
#endif
)
while(GsCheckKeyboardEvent())
continue;
#if HAVE_VNCSERVER && VNCSERVER_PTHREADED
if(vnc_thread_fd >= 0 && FD_ISSET(vnc_thread_fd, &rfds))
/* Read from vnc pipe */
read( vnc_thread_fd, &dummy, sizeof(int));
#endif
#if NONETWORK
/* check for input on registered file descriptors */
for (fd = 0; fd < regfdmax; fd++)
{
GR_EVENT_FDINPUT * gp;
if (!FD_ISSET(fd, ®fdset) || !FD_ISSET(fd, &rfds))
continue;
gp = (GR_EVENT_FDINPUT *)GsAllocEvent(curclient);
if(gp) {
gp->type = GR_EVENT_TYPE_FDINPUT;
gp->fd = fd;
}
}
#else /* !NONETWORK */
/* If a client is trying to connect, accept it: */
if(FD_ISSET(un_sock, &rfds))
GsAcceptClient();
/* If a client is sending us a command, handle it: */
curclient = root_client;
while (curclient)
{
GR_CLIENT *curclient_next;
/* curclient may be freed in GsDropClient*/
curclient_next = curclient->next;
if(FD_ISSET(curclient->id, &rfds))
GsHandleClient(curclient->id);
curclient = curclient_next;
}
#if HAVE_VNCSERVER && !VNCSERVER_PTHREADED
rfbProcessEvents(rfbScreen, 0);
#endif
#endif /* NONETWORK */
}
else if (e == 0) /* timeout*/
{
#if NONETWORK
/*
* Timeout has occured. Currently return a timeout event
* regardless of whether client has selected for it.
* Note: this will be changed back to GR_EVENT_TYPE_NONE
* for the GrCheckNextEvent/LINK_APP_TO_SERVER case
*/
#if MW_FEATURE_TIMERS
if(GdTimeout())
#endif
{
GR_EVENT_GENERAL * gp;
if ((gp = (GR_EVENT_GENERAL *)GsAllocEvent(curclient)) != NULL)
gp->type = GR_EVENT_TYPE_TIMEOUT;
}
#else /* !NONETWORK */
#if MW_FEATURE_TIMERS
/* check for timer timeouts and service if found*/
GdTimeout();
#endif
#endif /* NONETWORK */
} else if(errno != EINTR)
EPRINTF("Select() call in main failed\n");
}
