1 files changed, 109 insertions, 0 deletions
diff --git a/src/examples/helpertest/helpertest.c b/src/examples/helpertest/helpertest.c
new file mode 100644
index 0000000..9106000
--- /dev/null
+++ b/src/examples/helpertest/helpertest.c
@@ -0,0 +1,109 @@
+/*
+ * libmowgli: A collection of useful routines for programming.
+ * echoserver.c: Testing of the I/O system
+ *
+ * Copyright (c) 2012 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>
+
+int helper_count = 0;
+
+void timer_oneshot(mowgli_eventloop_helper_proc_t *helper)
+{
+	mowgli_writef(helper->out_fd, "oneshot timer hit\n");
+}
+
+void timer_tick(mowgli_eventloop_helper_proc_t *helper)
+{
+	static int ticks = 0;
+
+	mowgli_writef(helper->out_fd, "tick: %d\n", ++ticks);
+
+	if (ticks > 10)
+		mowgli_eventloop_break(helper->eventloop);
+}
+
+void helper_start(mowgli_eventloop_helper_proc_t *helper, void *userdata)
+{
+	mowgli_eventloop_t *eventloop = helper->eventloop;
+
+	mowgli_writef(helper->out_fd, "hi from pid %d\n", getpid());
+
+	mowgli_timer_add(eventloop, "timer_tick", (mowgli_event_dispatch_func_t *) timer_tick, helper, 1);
+	mowgli_timer_add_once(eventloop, "timer_oneshot", (mowgli_event_dispatch_func_t *) timer_oneshot, helper, 5);
+
+	mowgli_eventloop_run(eventloop);
+
+	mowgli_writef(helper->out_fd, "eventloop halted\n");
+
+	mowgli_eventloop_destroy(eventloop);
+}
+
+void helper_read(mowgli_eventloop_t *eventloop, mowgli_eventloop_io_t *io, mowgli_eventloop_io_dir_t dir, void *userdata);
+
+void helper_spawn(mowgli_eventloop_t *eventloop)
+{
+	mowgli_eventloop_helper_proc_t *helper;
+
+	if (helper_count >= 100)
+		return;
+
+	helper = mowgli_helper_create(eventloop, helper_start, "Spawned helper", NULL);
+	mowgli_helper_set_read_cb(eventloop, helper, helper_read);
+
+	helper_count++;
+}
+
+void helper_read(mowgli_eventloop_t *eventloop, mowgli_eventloop_io_t *io, mowgli_eventloop_io_dir_t dir, void *userdata)
+{
+	size_t r;
+	char buf[16384];
+	mowgli_eventloop_helper_proc_t *helper = mowgli_eventloop_io_helper(io);
+
+	bzero(buf, sizeof buf);
+	r = read(helper->in_fd, buf, sizeof buf);
+
+	if (r > 0)
+		printf("helper %p [%d/%d]: %s", helper, helper->child->pid, helper->in_fd, buf);
+	else if (r <= 0)
+	{
+		helper_count--;
+		mowgli_helper_destroy(eventloop, helper);
+	}
+
+	if ((rand() % helper_count) == 0)
+		helper_spawn(eventloop);
+}
+
+int main(int argc, char *argv[])
+{
+	mowgli_eventloop_t *base_eventloop;
+
+	/* Bleh this is needed to ensure some systems can set the process title */
+	argv = mowgli_proctitle_init(argc, argv);
+
+	base_eventloop = mowgli_eventloop_create();
+
+	helper_spawn(base_eventloop);
+
+	mowgli_eventloop_run(base_eventloop);
+
+	return EXIT_SUCCESS;
+}