1 files changed, 124 insertions, 0 deletions
diff --git a/src/libmowgli/eventloop/null_pollops.c b/src/libmowgli/eventloop/null_pollops.c
new file mode 100644
index 0000000..8fcabe4
--- /dev/null
+++ b/src/libmowgli/eventloop/null_pollops.c
@@ -0,0 +1,124 @@
+/*
+ * Copyright (c) 2011 William Pitcock <nenolod@dereferenced.org>.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "mowgli.h"
+
+void mowgli_simple_eventloop_timeout_once(mowgli_eventloop_t *eventloop, int timeout)
+{
+	time_t delay, currtime;
+	int t;
+
+	return_if_fail(eventloop != NULL);
+	return_if_fail(eventloop->eventloop_ops != NULL);
+
+	mowgli_eventloop_synchronize(eventloop);
+
+	currtime = mowgli_eventloop_get_time(eventloop);
+	delay = mowgli_eventloop_next_timer(eventloop);
+
+	if (delay <= currtime)
+	{
+		mowgli_eventloop_run_timers(eventloop);
+		mowgli_eventloop_synchronize(eventloop);
+
+		currtime = mowgli_eventloop_get_time(eventloop);
+		delay = mowgli_eventloop_next_timer(eventloop);
+	}
+
+	if (timeout)
+		t = timeout;
+	else
+	{
+		if (delay <= currtime)
+			t = -1;
+		else
+			t = (delay - currtime) * 1000;
+	}
+
+#ifdef DEBUG
+	mowgli_log("delay: %ld, currtime: %ld, select period: %d", delay, currtime, t);
+#endif
+
+	eventloop->eventloop_ops->select(eventloop, t);
+
+}
+
+void mowgli_simple_eventloop_run_once(mowgli_eventloop_t *eventloop)
+{
+	eventloop->eventloop_ops->timeout_once(eventloop, 0);
+}
+
+void mowgli_simple_eventloop_error_handler(mowgli_eventloop_t *eventloop, mowgli_eventloop_io_t *io, mowgli_eventloop_io_dir_t dir, void *userdata)
+{
+	mowgli_eventloop_pollable_t *pollable = mowgli_eventloop_io_pollable(io);
+
+	if (pollable != NULL)
+		mowgli_pollable_destroy(eventloop, pollable);
+}
+
+static void mowgli_null_eventloop_pollsetup(mowgli_eventloop_t *eventloop)
+{
+	return;
+}
+
+static void mowgli_null_eventloop_pollshutdown(mowgli_eventloop_t *eventloop)
+{
+	return;
+}
+
+static void mowgli_null_eventloop_destroy(mowgli_eventloop_t *eventloop, mowgli_eventloop_pollable_t *pollable)
+{
+	return;
+}
+
+static void mowgli_null_eventloop_setselect(mowgli_eventloop_t *eventloop, mowgli_eventloop_pollable_t *pollable, mowgli_eventloop_io_dir_t dir, mowgli_eventloop_io_cb_t *event_function)
+{
+	mowgli_log("null eventloop does not really do polling, events for pollable<%p> will be ignored", pollable);
+
+	switch (dir)
+	{
+	case MOWGLI_EVENTLOOP_IO_READ:
+		pollable->read_function = event_function;
+		break;
+	case MOWGLI_EVENTLOOP_IO_WRITE:
+		pollable->write_function = event_function;
+		break;
+	default:
+		mowgli_log("unhandled pollable direction %d", dir);
+		break;
+	}
+
+	return;
+}
+
+static void mowgli_null_eventloop_select(mowgli_eventloop_t *eventloop, int time)
+{
+	usleep(time);
+}
+
+mowgli_eventloop_ops_t _mowgli_null_pollops = {
+	.timeout_once = mowgli_simple_eventloop_timeout_once,
+	.run_once = mowgli_simple_eventloop_run_once,
+	.pollsetup = mowgli_null_eventloop_pollsetup,
+	.pollshutdown = mowgli_null_eventloop_pollshutdown,
+	.setselect = mowgli_null_eventloop_setselect,
+	.select = mowgli_null_eventloop_select,
+	.destroy = mowgli_null_eventloop_destroy,
+};