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weston/wayland-glib.c

83 lines
1.7 KiB

#include <stdint.h>
#include <glib/giochannel.h>
#include "wayland-client.h"
#include "wayland-glib.h"
struct _WaylandSource {
GSource source;
GPollFD pfd;
uint32_t mask;
struct wl_display *display;
};
static gboolean
wayland_source_prepare(GSource *base, gint *timeout)
{
WaylandSource *source = (WaylandSource *) base;
*timeout = -1;
/* We have to add/remove the GPollFD if we want to update our
* poll event mask dynamically. Instead, let's just flush all
* write on idle instead, which is what this amounts to. */
while (source->mask & WL_DISPLAY_WRITABLE)
wl_display_iterate(source->display,
WL_DISPLAY_WRITABLE);
return FALSE;
}
static gboolean
wayland_source_check(GSource *base)
{
WaylandSource *source = (WaylandSource *) base;
return source->pfd.revents;
}
static gboolean
wayland_source_dispatch(GSource *base,
GSourceFunc callback,
gpointer data)
{
WaylandSource *source = (WaylandSource *) base;
wl_display_iterate(source->display,
WL_DISPLAY_READABLE);
return TRUE;
}
static GSourceFuncs wayland_source_funcs = {
wayland_source_prepare,
wayland_source_check,
wayland_source_dispatch,
NULL
};
static int
wayland_source_update(uint32_t mask, void *data)
{
WaylandSource *source = data;
source->mask = mask;
return 0;
}
GSource *
wayland_source_new(struct wl_display *display)
{
WaylandSource *source;
source = (WaylandSource *) g_source_new(&wayland_source_funcs,
sizeof (WaylandSource));
source->display = display;
source->pfd.fd = wl_display_get_fd(display,
wayland_source_update, source);
source->pfd.events = G_IO_IN | G_IO_ERR;
g_source_add_poll(&source->source, &source->pfd);
return &source->source;
}