1 files changed, 79 insertions, 0 deletions
diff --git a/src/fdev-systemd.c b/src/fdev-systemd.c
new file mode 100644
index 00000000..0f4a03cd
--- /dev/null
+++ b/src/fdev-systemd.c
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2018 "IoT.bzh"
+ * Author José Bollo <jose.bollo@iot.bzh>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <errno.h>
+
+#include <systemd/sd-event.h>
+
+#define FDEV_PROVIDER
+#include "fdev.h"
+#include "fdev-systemd.h"
+
+static int handler(sd_event_source *s, int fd, uint32_t revents, void *userdata)
+{
+	struct fdev *fdev = userdata;
+	fdev_dispatch(fdev, revents);
+	return 0;
+}
+
+static void unref(void *closure)
+{
+	sd_event_source *source = closure;
+	sd_event_source_unref(source);
+}
+
+static void disable(void *closure, const struct fdev *fdev)
+{
+	sd_event_source *source = closure;
+	sd_event_source_set_enabled(source, SD_EVENT_OFF);
+}
+
+static void enable(void *closure, const struct fdev *fdev)
+{
+	sd_event_source *source = closure;
+	sd_event_source_set_io_events(source, fdev_events(fdev));
+	sd_event_source_set_enabled(source, SD_EVENT_ON);
+}
+
+static struct fdev_itf itf =
+{
+	.unref = unref,
+	.disable = disable,
+	.enable = enable
+};
+
+struct fdev *fdev_systemd_create(struct sd_event *eloop, int fd)
+{
+	int rc;
+	sd_event_source *source;
+	struct fdev *fdev;
+
+	fdev = fdev_create(fd);
+	if (fdev) {
+		rc = sd_event_add_io(eloop, &source, fd, 0, handler, fdev);
+		if (rc < 0) {
+			fdev_unref(fdev);
+			fdev = 0;
+			errno = -rc;
+		} else {
+			sd_event_source_set_enabled(source, SD_EVENT_OFF);
+			fdev_set_itf(fdev, &itf, source);
+		}
+	}
+	return fdev;
+}
+