Add new trigger object

This just calls a closure at a later point in time.
It will get used for having the splash plugin perform
tasks that will make the daemon defer responding to
the client.

diff --git a/src/libply/Makefile.am b/src/libply/Makefile.am
index 1455a0635df27f9ce0bf2860b58bd7cf853f1f75..75f529230f857432b65b8979fb143084ea5f1c25 100644 (file)
--- a/src/libply/Makefile.am
+++ b/src/libply/Makefile.am
@@ -16,6 +16,7 @@ libply_HEADERS = \
                    ply-image.h                                               \
                    ply-terminal.h                                            \
                    ply-terminal-session.h                                    \
+                   ply-trigger.h                                             \
                    ply-utils.h
 
 libply_la_CFLAGS = $(PLYMOUTH_CFLAGS)
@@ -34,6 +35,7 @@ libply_la_SOURCES = ply-event-loop.c                                          \
                    ply-image.c                                               \
                    ply-terminal.c                                            \
                    ply-terminal-session.c                                    \
+                   ply-trigger.c                                             \
                    ply-utils.c
 
 MAINTAINERCLEANFILES = Makefile.in

diff --git a/src/libply/ply-trigger.c b/src/libply/ply-trigger.c
new file mode 100644 (file)
index 0000000..83131a0
--- /dev/null
+++ b/src/libply/ply-trigger.c
@@ -0,0 +1,78 @@
+/* ply-trigger.c - Calls closure at later time.
+ *
+ * Copyright (C) 2008 Red Hat, Inc.
+ *
+ * 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, 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., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ *
+ * Written by: Ray Strode <rstrode@redhat.com>
+ */
+#include "config.h"
+#include "ply-trigger.h"
+
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "ply-logger.h"
+#include "ply-utils.h"
+
+struct _ply_trigger
+{
+  ply_trigger_handler_t  handler;
+  void                  *user_data;
+  ply_trigger_t         **free_address;
+};
+
+ply_trigger_t *
+ply_trigger_new (ply_trigger_handler_t  handler,
+                 void                 *user_data,
+                 ply_trigger_t       **free_address)
+{
+  ply_trigger_t *trigger;
+
+  trigger = calloc (1, sizeof (ply_trigger_t));
+  trigger->handler = handler;
+  trigger->user_data = user_data;
+  trigger->free_address = free_address;
+
+  return trigger;
+}
+
+void
+ply_trigger_free (ply_trigger_t *trigger)
+{
+  if (trigger == NULL)
+    return;
+
+  if (trigger->free_address != NULL)
+    *trigger->free_address = NULL;
+
+  free (trigger);
+}
+
+void
+ply_trigger_pull (ply_trigger_t *trigger,
+                  const void    *data)
+{
+  assert (trigger != NULL);
+
+  if (trigger->handler != NULL)
+    trigger->handler (trigger->user_data, data, trigger);
+
+  if (trigger->free_address != NULL)
+    ply_trigger_free (trigger);
+}
+/* vim: set ts=4 sw=4 expandtab autoindent cindent cino={.5s,(0: */

diff --git a/src/libply/ply-trigger.h b/src/libply/ply-trigger.h
new file mode 100644 (file)
index 0000000..d7dc936
--- /dev/null
+++ b/src/libply/ply-trigger.h
@@ -0,0 +1,47 @@
+/* ply-trigger.h - Calls closure at later time.
+ *
+ * Copyright (C) 2008 Red Hat, Inc.
+ *
+ * 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, 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., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ *
+ * Written By: Ray Strode <rstrode@redhat.com>
+ */
+#ifndef PLY_TRIGGER_H
+#define PLY_TRIGGER_H
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <unistd.h>
+
+#include "ply-event-loop.h"
+
+typedef struct _ply_trigger ply_trigger_t;
+
+typedef void (* ply_trigger_handler_t) (void          *user_data,
+                                        const void    *trigger_data,
+                                        ply_trigger_t *trigger);
+#ifndef PLY_HIDE_FUNCTION_DECLARATIONS
+ply_trigger_t *ply_trigger_new (ply_trigger_handler_t  handler,
+                                void                 *user_data,
+                                ply_trigger_t       **post_pull_free_address);
+void ply_trigger_free (ply_trigger_t *trigger);
+
+void ply_trigger_pull (ply_trigger_t *trigger,
+                       const void    *data);
+#endif
+
+#endif /* PLY_TRIGGER_H */
+/* vim: set ts=4 sw=4 expandtab autoindent cindent cino={.5s,(0: */