1 files changed, 48 insertions, 0 deletions
diff --git a/man/glib-event-glue.c b/man/glib-event-glue.c
new file mode 100644
index 0000000..61e8bf6
--- /dev/null
+++ b/man/glib-event-glue.c
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: MIT-0 */
+
+#include <stdlib.h>
+#include <glib.h>
+#include <systemd/sd-event.h>
+
+typedef struct SDEventSource {
+  GSource source;
+  GPollFD pollfd;
+  sd_event *event;
+} SDEventSource;
+
+static gboolean event_prepare(GSource *source, gint *timeout_) {
+  return sd_event_prepare(((SDEventSource *)source)->event) > 0;
+}
+
+static gboolean event_check(GSource *source) {
+  return sd_event_wait(((SDEventSource *)source)->event, 0) > 0;
+}
+
+static gboolean event_dispatch(GSource *source, GSourceFunc callback, gpointer user_data) {
+  return sd_event_dispatch(((SDEventSource *)source)->event) > 0;
+}
+
+static void event_finalize(GSource *source) {
+  sd_event_unref(((SDEventSource *)source)->event);
+}
+
+static GSourceFuncs event_funcs = {
+  .prepare = event_prepare,
+  .check = event_check,
+  .dispatch = event_dispatch,
+  .finalize = event_finalize,
+};
+
+GSource *g_sd_event_create_source(sd_event *event) {
+  SDEventSource *source;
+
+  source = (SDEventSource *)g_source_new(&event_funcs, sizeof(SDEventSource));
+
+  source->event = sd_event_ref(event);
+  source->pollfd.fd = sd_event_get_fd(event);
+  source->pollfd.events = G_IO_IN | G_IO_HUP | G_IO_ERR;
+
+  g_source_add_poll((GSource *)source, &source->pollfd);
+
+  return (GSource *)source;
+}