Bool
W_CheckIdleHandlers(void)
{
IdleHandler *handler;
WMArray *handlerCopy;
WMArrayIterator iter;
if (!idleHandler || WMGetArrayItemCount(idleHandler)==0) {
W_FlushIdleNotificationQueue();
/* make sure an observer in queue didn't added an idle handler */
return (idleHandler!=NULL && WMGetArrayItemCount(idleHandler)>0);
}
handlerCopy = WMDuplicateArray(idleHandler);
WM_ITERATE_ARRAY(handlerCopy, handler, iter) {
/* check if the handler still exist or was removed by a callback */
if (WMGetFirstInArray(idleHandler, handler) == WANotFound)
continue;
(*handler->callback)(handler->clientData);
WMDeleteIdleHandler(handler);
}
WMFreeArray(handlerCopy);
W_FlushIdleNotificationQueue();
/* this is not necesarrily False, because one handler can re-add itself */
return (WMGetArrayItemCount(idleHandler)>0);
}
static void makeShortcutCommand(WMenu * menu, WMenuEntry * entry)
{
WWindow *wwin = (WWindow *) entry->clientdata;
WScreen *scr = wwin->screen_ptr;
int index = entry->order - wlengthof(menu_options_entries);
/* Parameter not used, but tell the compiler that it is ok */
(void) menu;
if (scr->shortcutWindows[index]) {
WMFreeArray(scr->shortcutWindows[index]);
scr->shortcutWindows[index] = NULL;
}
if (wwin->flags.selected && scr->selected_windows) {
scr->shortcutWindows[index] = WMDuplicateArray(scr->selected_windows);
/*WMRemoveFromArray(scr->shortcutWindows[index], wwin);
WMInsertInArray(scr->shortcutWindows[index], 0, wwin); */
} else {
scr->shortcutWindows[index] = WMCreateArray(4);
WMAddToArray(scr->shortcutWindows[index], wwin);
}
wSelectWindow(wwin, !wwin->flags.selected);
XFlush(dpy);
wusleep(3000);
wSelectWindow(wwin, !wwin->flags.selected);
XFlush(dpy);
}
/*
* This functions will handle input events on all registered file descriptors.
* Input:
* - waitForInput - True if we want the function to wait until an event
* appears on a file descriptor we watch, False if we
* want the function to immediately return if there is
* no data available on the file descriptors we watch.
* - inputfd - Extra input file descriptor to watch for input.
* This is only used when called from wevent.c to watch
* on ConnectionNumber(dpy) to avoid blocking of X events
* if we wait for input from other file handlers.
* Output:
* if waitForInput is False, the function will return False if there are no
* input handlers registered, or if there is no data
* available on the registered ones, and will return True
* if there is at least one input handler that has data
* available.
* if waitForInput is True, the function will return False if there are no
* input handlers registered, else it will block until an
* event appears on one of the file descriptors it watches
* and then it will return True.
*
* If the retured value is True, the input handlers for the corresponding file
* descriptors are also called.
*
* Parametersshould be passed like this:
* - from wevent.c:
* waitForInput - apropriate value passed by the function who called us
* inputfd = ConnectionNumber(dpy)
* - from wutil.c:
* waitForInput - apropriate value passed by the function who called us
* inputfd = -1
*
*/
Bool
W_HandleInputEvents(Bool waitForInput, int inputfd)
{
#if defined(HAVE_POLL) && defined(HAVE_POLL_H) && !defined(HAVE_SELECT)
struct poll fd *fds;
InputHandler *handler;
int count, timeout, nfds, i, extrafd;
extrafd = (inputfd < 0) ? 0 : 1;
if (inputHandler)
nfds = WMGetArrayItemCount(inputHandler);
else
nfds = 0;
if (!extrafd && nfds==0) {
W_FlushASAPNotificationQueue();
return False;
}
fds = wmalloc((nfds+extrafd) * sizeof(struct pollfd));
if (extrafd) {
/* put this to the end of array to avoid using ranges from 1 to nfds+1 */
fds[nfds].fd = inputfd;
fds[nfds].events = POLLIN;
}
/* use WM_ITERATE_ARRAY() here */
for (i = 0; i<nfds; i++) {
handler = WMGetFromArray(inputHandler, i);
fds[i].fd = handler->fd;
fds[i].events = 0;
if (handler->mask & WIReadMask)
fds[i].events |= POLLIN;
if (handler->mask & WIWriteMask)
fds[i].events |= POLLOUT;
#if 0 /* FIXME */
if (handler->mask & WIExceptMask)
FD_SET(handler->fd, &eset);
#endif
}
/*
* Setup the timeout to the estimated time until the
* next timer expires.
*/
if (!waitForInput) {
timeout = 0;
} else if (timerPending()) {
struct timeval tv;
delayUntilNextTimerEvent(&tv);
timeout = tv.tv_sec * 1000 + tv.tv_usec / 1000;
} else {
timeout = -1;
}
count = poll(fds, nfds+extrafd, timeout);
if (count>0 && nfds>0) {
WMArray *handlerCopy = WMDuplicateArray(inputHandler);
int mask;
/* use WM_ITERATE_ARRAY() here */
for (i=0; i<nfds; i++) {
handler = WMGetFromArray(handlerCopy, i);
/* check if the handler still exist or was removed by a callback */
if (WMGetFirstInArray(inputHandler, handler) == WANotFound)
continue;
mask = 0;
if ((handler->mask & WIReadMask) &&
(fds[i].revents & (POLLIN|POLLRDNORM|POLLRDBAND|POLLPRI)))
mask |= WIReadMask;
if ((handler->mask & WIWriteMask) &&
(fds[i].revents & (POLLOUT | POLLWRBAND)))
mask |= WIWriteMask;
if ((handler->mask & WIExceptMask) &&
(fds[i].revents & (POLLHUP | POLLNVAL | POLLERR)))
mask |= WIExceptMask;
if (mask!=0 && handler->callback) {
(*handler->callback)(handler->fd, mask,
handler->clientData);
}
}
WMFreeArray(handlerCopy);
}
wfree(fds);
W_FlushASAPNotificationQueue();
return (count > 0);
#else
#ifdef HAVE_SELECT
struct timeval timeout;
struct timeval *timeoutPtr;
fd_set rset, wset, eset;
int maxfd, nfds, i;
int count;
InputHandler *handler;
if (inputHandler)
nfds = WMGetArrayItemCount(inputHandler);
else
nfds = 0;
if (inputfd<0 && nfds==0) {
W_FlushASAPNotificationQueue();
return False;
}
FD_ZERO(&rset);
FD_ZERO(&wset);
FD_ZERO(&eset);
if (inputfd < 0) {
maxfd = 0;
} else {
FD_SET(inputfd, &rset);
maxfd = inputfd;
}
/* use WM_ITERATE_ARRAY() here */
for (i=0; i<nfds; i++) {
handler = WMGetFromArray(inputHandler, i);
if (handler->mask & WIReadMask)
FD_SET(handler->fd, &rset);
if (handler->mask & WIWriteMask)
FD_SET(handler->fd, &wset);
if (handler->mask & WIExceptMask)
FD_SET(handler->fd, &eset);
if (maxfd < handler->fd)
maxfd = handler->fd;
}
/*
* Setup the timeout to the estimated time until the
* next timer expires.
*/
if (!waitForInput) {
SET_ZERO(timeout);
timeoutPtr = &timeout;
} else if (timerPending()) {
delayUntilNextTimerEvent(&timeout);
timeoutPtr = &timeout;
} else {
timeoutPtr = (struct timeval*)0;
}
count = select(1 + maxfd, &rset, &wset, &eset, timeoutPtr);
if (count>0 && nfds>0) {
WMArray *handlerCopy = WMDuplicateArray(inputHandler);
int mask;
/* use WM_ITERATE_ARRAY() here */
for (i=0; i<nfds; i++) {
handler = WMGetFromArray(handlerCopy, i);
/* check if the handler still exist or was removed by a callback */
if (WMGetFirstInArray(inputHandler, handler) == WANotFound)
continue;
mask = 0;
if ((handler->mask & WIReadMask) && FD_ISSET(handler->fd, &rset))
mask |= WIReadMask;
if ((handler->mask & WIWriteMask) && FD_ISSET(handler->fd, &wset))
mask |= WIWriteMask;
if ((handler->mask & WIExceptMask) && FD_ISSET(handler->fd, &eset))
mask |= WIExceptMask;
if (mask!=0 && handler->callback) {
(*handler->callback)(handler->fd, mask,
handler->clientData);
}
}
WMFreeArray(handlerCopy);
}
W_FlushASAPNotificationQueue();
return (count > 0);
#else /* not HAVE_SELECT, not HAVE_POLL */
# error Neither select nor poll. You lose.
#endif /* HAVE_SELECT */
#endif /* HAVE_POLL */
}
