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-rw-r--r--source4/gtk/common/gtk-smb.h3
-rw-r--r--source4/gtk/common/gtk_events.c369
2 files changed, 372 insertions, 0 deletions
diff --git a/source4/gtk/common/gtk-smb.h b/source4/gtk/common/gtk-smb.h
index cbbd44698f..e85eb5be85 100644
--- a/source4/gtk/common/gtk-smb.h
+++ b/source4/gtk/common/gtk-smb.h
@@ -79,5 +79,8 @@ GtkWidget *gtk_select_domain_dialog_new (struct dcerpc_pipe *sam_pipe);
GType gtk_select_domain_dialog_get_type (void);
struct policy_handle gtk_select_domain_dialog_get_handle(GtkSelectDomainDialog *d);
+int gtk_event_loop(void);
+struct event_context;
+struct event_context *gtk_event_context(void);
#endif
diff --git a/source4/gtk/common/gtk_events.c b/source4/gtk/common/gtk_events.c
new file mode 100644
index 0000000000..faa99a780e
--- /dev/null
+++ b/source4/gtk/common/gtk_events.c
@@ -0,0 +1,369 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ main select loop and event handling
+
+ plugin for using a gtk application's event loop
+
+ Copyright (C) Stefan Metzmacher 2005
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "lib/events/events.h"
+#include "lib/events/events_internal.h"
+
+#include "gtk/common/select.h"
+
+/* as gtk_main() doesn't take a parameter nor return one,
+ we need to have a global event context structure for our
+ gtk-bases tools
+ */
+static struct event_context *gtk_event_context_global;
+
+static int gtk_event_context_destructor(void *ptr)
+{
+ gtk_event_context_global = NULL;
+ return 0;
+}
+
+/*
+ create a gtk_event_context structure.
+*/
+static int gtk_event_context_init(struct event_context *ev, void *private_data)
+{
+ talloc_set_destructor(ev, gtk_event_context_destructor);
+ return 0;
+}
+
+struct gtk_fd_event {
+ BOOL running;
+ BOOL free_after_run;
+ GIOChannel *channel;
+ guint fd_id;
+};
+
+static gboolean gtk_event_fd_handler(GIOChannel *source, GIOCondition condition, gpointer data)
+{
+ struct fd_event *fde = talloc_get_type(data, struct fd_event);
+ struct gtk_fd_event *gtk_fd = talloc_get_type(fde->additional_data,
+ struct gtk_fd_event);
+ int flags = 0;
+
+ if (condition & (G_IO_IN|G_IO_PRI|G_IO_ERR|G_IO_HUP))
+ flags |= EVENT_FD_READ;
+ if (condition & G_IO_OUT)
+ flags |= EVENT_FD_WRITE;
+
+ gtk_fd->running = True;
+ fde->handler(fde->event_ctx, fde, flags, fde->private_data);
+ gtk_fd->running = False;
+
+ if (gtk_fd->free_after_run) {
+ talloc_free(fde);
+ return gtk_false();
+ }
+
+ return gtk_true();
+}
+
+/*
+ destroy an fd_event
+*/
+static int gtk_event_fd_destructor(void *ptr)
+{
+ struct fd_event *fde = talloc_get_type(ptr, struct fd_event);
+ struct gtk_fd_event *gtk_fd = talloc_get_type(fde->additional_data,
+ struct gtk_fd_event);
+
+ if (gtk_fd->running) {
+ /* the event is running reject the talloc_free()
+ as it's done by the gtk_event_timed_handler()
+ */
+ gtk_fd->free_after_run = True;
+ return -1;
+ }
+
+ if (fde->flags) {
+ /* only if any flag is set we have really registered an event */
+ g_source_remove(gtk_fd->fd_id);
+ }
+ g_io_channel_unref(gtk_fd->channel);
+
+ return 0;
+}
+
+/*
+ add a fd based event
+ return NULL on failure (memory allocation error)
+*/
+static struct fd_event *gtk_event_add_fd(struct event_context *ev, TALLOC_CTX *mem_ctx,
+ int fd, uint16_t flags,
+ event_fd_handler_t handler,
+ void *private_data)
+{
+ struct fd_event *fde;
+ struct gtk_fd_event *gtk_fd;
+ GIOChannel *channel;
+ guint fd_id = 0;
+ GIOCondition condition = 0;
+
+ fde = talloc(mem_ctx?mem_ctx:ev, struct fd_event);
+ if (!fde) return NULL;
+
+ gtk_fd = talloc(fde, struct gtk_fd_event);
+ if (gtk_fd == NULL) {
+ talloc_free(fde);
+ return NULL;
+ }
+
+ fde->event_ctx = ev;
+ fde->fd = fd;
+ fde->flags = flags;
+ fde->handler = handler;
+ fde->private_data = private_data;
+ fde->additional_data = gtk_fd;
+
+ channel = g_io_channel_unix_new(fde->fd);
+ if (channel == NULL) {
+ talloc_free(fde);
+ return NULL;
+ }
+
+ if (fde->flags & EVENT_FD_READ)
+ condition |= G_IO_IN;
+ if (fde->flags & EVENT_FD_WRITE)
+ condition |= G_IO_OUT;
+
+ if (condition) {
+ /* only register the event when at least one flag is set
+ as condition == 0 means wait for any event and is not the same
+ as fde->flags == 0 !
+ */
+ fd_id = g_io_add_watch(channel, condition, gtk_event_fd_handler, fde);
+ }
+
+ gtk_fd->running = False;
+ gtk_fd->free_after_run = False;
+ gtk_fd->channel = channel;
+ gtk_fd->fd_id = fd_id;
+
+ talloc_set_destructor(fde, gtk_event_fd_destructor);
+
+ return fde;
+}
+
+/*
+ return the fd event flags
+*/
+static uint16_t gtk_event_get_fd_flags(struct fd_event *fde)
+{
+ if (!fde) return 0;
+
+ return fde->flags;
+}
+
+/*
+ set the fd event flags
+*/
+static void gtk_event_set_fd_flags(struct fd_event *fde, uint16_t flags)
+{
+ struct gtk_fd_event *gtk_fd = talloc_get_type(fde->additional_data,
+ struct gtk_fd_event);
+ GIOCondition condition = 0;
+
+ if (!fde) return;
+
+ if (fde->flags == flags) return;
+
+ if (flags & EVENT_FD_READ)
+ condition |= G_IO_IN;
+ if (flags & EVENT_FD_WRITE)
+ condition |= G_IO_OUT;
+
+ /* only register the event when at least one flag is set
+ as condition == 0 means wait for any event and is not the same
+ as fde->flags == 0 !
+ */
+ if (fde->flags) {
+ g_source_remove(gtk_fd->fd_id);
+ }
+ if (condition) {
+ gtk_fd->fd_id = g_io_add_watch(gtk_fd->channel, condition, gtk_event_fd_handler, fde);
+ }
+
+ fde->flags = flags;
+}
+
+struct gtk_timed_event {
+ BOOL running;
+ guint te_id;
+};
+
+static gboolean gtk_event_timed_handler(gpointer data)
+{
+ struct timed_event *te = talloc_get_type(data, struct timed_event);
+ struct gtk_timed_event *gtk_te = talloc_get_type(te->additional_data,
+ struct gtk_timed_event);
+ struct timeval t = timeval_current();
+
+ gtk_te->running = True;
+ te->handler(te->event_ctx, te, t, te->private_data);
+ gtk_te->running = False;
+
+ talloc_free(te);
+
+ /* return FALSE mean this event should be removed */
+ return gtk_false();
+}
+
+/*
+ destroy a timed event
+*/
+static int gtk_event_timed_destructor(void *ptr)
+{
+ struct timed_event *te = talloc_get_type(ptr, struct timed_event);
+ struct gtk_timed_event *gtk_te = talloc_get_type(te->additional_data,
+ struct gtk_timed_event);
+
+ if (gtk_te->running) {
+ /* the event is running reject the talloc_free()
+ as it's done by the gtk_event_timed_handler()
+ */
+ return -1;
+ }
+
+ g_source_remove(gtk_te->te_id);
+
+ return 0;
+}
+
+/*
+ add a timed event
+ return NULL on failure (memory allocation error)
+*/
+static struct timed_event *gtk_event_add_timed(struct event_context *ev, TALLOC_CTX *mem_ctx,
+ struct timeval next_event,
+ event_timed_handler_t handler,
+ void *private_data)
+{
+ struct timed_event *te;
+ struct gtk_timed_event *gtk_te;
+ struct timeval cur_tv, diff_tv;
+ guint timeout;
+
+ te = talloc(mem_ctx?mem_ctx:ev, struct timed_event);
+ if (te == NULL) return NULL;
+
+ gtk_te = talloc(te, struct gtk_timed_event);
+ if (gtk_te == NULL) {
+ talloc_free(te);
+ return NULL;
+ }
+
+ te->event_ctx = ev;
+ te->next_event = next_event;
+ te->handler = handler;
+ te->private_data = private_data;
+ te->additional_data = gtk_te;
+
+ cur_tv = timeval_current();
+ diff_tv = timeval_diff(&next_event, &cur_tv);
+ timeout = ((diff_tv.tv_usec+999)/1000)+(diff_tv.tv_sec*1000);
+
+ gtk_te->te_id = g_timeout_add(timeout, gtk_event_timed_handler, te);
+ gtk_te->running = False;
+
+ talloc_set_destructor(te, gtk_event_timed_destructor);
+
+ return te;
+}
+
+/*
+ do a single event loop
+*/
+static int gtk_event_loop_once(struct event_context *ev)
+{
+ /*
+ * gtk_main_iteration ()
+ *
+ * gboolean gtk_main_iteration (void);
+ *
+ * Runs a single iteration of the mainloop. If no events
+ * are waiting to be processed GTK+ will block until the
+ * next event is noticed. If you don't want to block look
+ * at gtk_main_iteration_do() or check if any events are
+ * pending with gtk_events_pending() first.
+ *
+ * Returns : TRUE if gtk_main_quit() has been called for the innermost mainloop.
+ */
+ gboolean ret;
+
+ ret = gtk_main_iteration();
+ if (ret == gtk_true()) {
+ return -1;
+ }
+
+ return 0;
+}
+
+/*
+ return with 0
+*/
+static int gtk_event_loop_wait(struct event_context *ev)
+{
+ /*
+ * gtk_main ()
+ *
+ * void gtk_main (void);
+ *
+ * Runs the main loop until gtk_main_quit() is called.
+ * You can nest calls to gtk_main(). In that case
+ * gtk_main_quit() will make the innermost invocation
+ * of the main loop return.
+ */
+ gtk_main();
+ return 0;
+}
+
+static const struct event_ops gtk_event_ops = {
+ .context_init = gtk_event_context_init,
+ .add_fd = gtk_event_add_fd,
+ .get_fd_flags = gtk_event_get_fd_flags,
+ .set_fd_flags = gtk_event_set_fd_flags,
+ .add_timed = gtk_event_add_timed,
+ .loop_once = gtk_event_loop_once,
+ .loop_wait = gtk_event_loop_wait,
+};
+
+int gtk_event_loop(void)
+{
+ int ret;
+
+ gtk_event_context_global = event_context_init_ops(NULL, &gtk_event_ops, NULL);
+ if (!gtk_event_context_global) return -1;
+
+ ret = event_loop_wait(gtk_event_context_global);
+
+ talloc_free(gtk_event_context_global);
+
+ return ret;
+}
+
+struct event_context *gtk_event_context(void)
+{
+ return gtk_event_context_global;
+}