/**
* Run the gtk event loop.
*
* The same as the standard gtk_main loop except this ensures active
* FD are added to the gtk poll event set.
*/
static void nsgtk_main(void)
{
fd_set read_fd_set, write_fd_set, exc_fd_set;
int max_fd;
GPollFD *fd_list[1000];
unsigned int fd_count;
while (!nsgtk_complete) {
max_fd = -1;
fd_count = 0;
FD_ZERO(&read_fd_set);
FD_ZERO(&write_fd_set);
FD_ZERO(&exc_fd_set);
fetch_fdset(&read_fd_set, &write_fd_set, &exc_fd_set, &max_fd);
for (int i = 0; i <= max_fd; i++) {
if (FD_ISSET(i, &read_fd_set)) {
GPollFD *fd = malloc(sizeof *fd);
fd->fd = i;
fd->events = G_IO_IN | G_IO_HUP | G_IO_ERR;
g_main_context_add_poll(0, fd, 0);
fd_list[fd_count++] = fd;
}
if (FD_ISSET(i, &write_fd_set)) {
GPollFD *fd = malloc(sizeof *fd);
fd->fd = i;
fd->events = G_IO_OUT | G_IO_ERR;
g_main_context_add_poll(0, fd, 0);
fd_list[fd_count++] = fd;
}
if (FD_ISSET(i, &exc_fd_set)) {
GPollFD *fd = malloc(sizeof *fd);
fd->fd = i;
fd->events = G_IO_ERR;
g_main_context_add_poll(0, fd, 0);
fd_list[fd_count++] = fd;
}
}
schedule_run();
gtk_main_iteration();
for (unsigned int i = 0; i != fd_count; i++) {
g_main_context_remove_poll(0, fd_list[i]);
free(fd_list[i]);
}
}
}
void nsbeos_gui_poll(void)
{
fd_set read_fd_set, write_fd_set, exc_fd_set;
int max_fd;
struct timeval timeout;
unsigned int fd_count = 0;
bigtime_t next_schedule = 0;
/* get any active fetcher fd */
fetch_fdset(&read_fd_set, &write_fd_set, &exc_fd_set, &max_fd);
/* run the scheduler */
schedule_run();
// our own event pipe
FD_SET(sEventPipe[0], &read_fd_set);
// max of all the fds in the set, plus one for select()
max_fd = MAX(max_fd, sEventPipe[0]) + 1;
// compute schedule timeout
if (earliest_callback_timeout != B_INFINITE_TIMEOUT) {
next_schedule = earliest_callback_timeout - system_time();
} else {
next_schedule = earliest_callback_timeout;
}
// we're quite late already...
if (next_schedule < 0)
next_schedule = 0;
timeout.tv_sec = (long)(next_schedule / 1000000LL);
timeout.tv_usec = (long)(next_schedule % 1000000LL);
//LOG("gui_poll: select(%d, ..., %Ldus", max_fd, next_schedule);
fd_count = select(max_fd, &read_fd_set, &write_fd_set, &exc_fd_set,
&timeout);
//LOG("select: %d\n", fd_count);
if (fd_count > 0 && FD_ISSET(sEventPipe[0], &read_fd_set)) {
BMessage *message;
int len = read(sEventPipe[0], &message, sizeof(void *));
//LOG("gui_poll: BMessage ? %d read", len);
if (len == sizeof(void *)) {
//LOG("gui_poll: BMessage.what %-4.4s\n", &(message->what));
nsbeos_dispatch_event(message);
}
}
}