1 files changed, 78 insertions, 0 deletions
diff --git a/src/udev/udev-ctrl.h b/src/udev/udev-ctrl.h
new file mode 100644
index 0000000..11fc0b6
--- /dev/null
+++ b/src/udev/udev-ctrl.h
@@ -0,0 +1,78 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#pragma once
+
+#include "sd-event.h"
+
+#include "macro.h"
+#include "time-util.h"
+
+typedef struct UdevCtrl UdevCtrl;
+
+typedef enum UdevCtrlMessageType {
+        _UDEV_CTRL_END_MESSAGES,
+        UDEV_CTRL_SET_LOG_LEVEL,
+        UDEV_CTRL_STOP_EXEC_QUEUE,
+        UDEV_CTRL_START_EXEC_QUEUE,
+        UDEV_CTRL_RELOAD,
+        UDEV_CTRL_SET_ENV,
+        UDEV_CTRL_SET_CHILDREN_MAX,
+        UDEV_CTRL_PING,
+        UDEV_CTRL_EXIT,
+} UdevCtrlMessageType;
+
+typedef union UdevCtrlMessageValue {
+        int intval;
+        char buf[256];
+} UdevCtrlMessageValue;
+
+typedef int (*udev_ctrl_handler_t)(UdevCtrl *udev_ctrl, UdevCtrlMessageType type,
+                                   const UdevCtrlMessageValue *value, void *userdata);
+
+int udev_ctrl_new_from_fd(UdevCtrl **ret, int fd);
+static inline int udev_ctrl_new(UdevCtrl **ret) {
+        return udev_ctrl_new_from_fd(ret, -1);
+}
+
+int udev_ctrl_enable_receiving(UdevCtrl *uctrl);
+UdevCtrl *udev_ctrl_ref(UdevCtrl *uctrl);
+UdevCtrl *udev_ctrl_unref(UdevCtrl *uctrl);
+int udev_ctrl_attach_event(UdevCtrl *uctrl, sd_event *event);
+int udev_ctrl_start(UdevCtrl *uctrl, udev_ctrl_handler_t callback, void *userdata);
+sd_event_source *udev_ctrl_get_event_source(UdevCtrl *uctrl);
+
+int udev_ctrl_wait(UdevCtrl *uctrl, usec_t timeout);
+
+int udev_ctrl_send(UdevCtrl *uctrl, UdevCtrlMessageType type, const void *data);
+static inline int udev_ctrl_send_set_log_level(UdevCtrl *uctrl, int priority) {
+        return udev_ctrl_send(uctrl, UDEV_CTRL_SET_LOG_LEVEL, INT_TO_PTR(priority));
+}
+
+static inline int udev_ctrl_send_stop_exec_queue(UdevCtrl *uctrl) {
+        return udev_ctrl_send(uctrl, UDEV_CTRL_STOP_EXEC_QUEUE, NULL);
+}
+
+static inline int udev_ctrl_send_start_exec_queue(UdevCtrl *uctrl) {
+        return udev_ctrl_send(uctrl, UDEV_CTRL_START_EXEC_QUEUE, NULL);
+}
+
+static inline int udev_ctrl_send_reload(UdevCtrl *uctrl) {
+        return udev_ctrl_send(uctrl, UDEV_CTRL_RELOAD, NULL);
+}
+
+static inline int udev_ctrl_send_set_env(UdevCtrl *uctrl, const char *key) {
+        return udev_ctrl_send(uctrl, UDEV_CTRL_SET_ENV, key);
+}
+
+static inline int udev_ctrl_send_set_children_max(UdevCtrl *uctrl, int count) {
+        return udev_ctrl_send(uctrl, UDEV_CTRL_SET_CHILDREN_MAX, INT_TO_PTR(count));
+}
+
+static inline int udev_ctrl_send_ping(UdevCtrl *uctrl) {
+        return udev_ctrl_send(uctrl, UDEV_CTRL_PING, NULL);
+}
+
+static inline int udev_ctrl_send_exit(UdevCtrl *uctrl) {
+        return udev_ctrl_send(uctrl, UDEV_CTRL_EXIT, NULL);
+}
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(UdevCtrl*, udev_ctrl_unref);