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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:49:52 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:49:52 +0000
commit55944e5e40b1be2afc4855d8d2baf4b73d1876b5 (patch)
tree33f869f55a1b149e9b7c2b7e201867ca5dd52992 /src/udev/udev-ctrl.h
parentInitial commit. (diff)
downloadsystemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.tar.xz
systemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.zip
Adding upstream version 255.4.upstream/255.4
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/udev/udev-ctrl.h')
-rw-r--r--src/udev/udev-ctrl.h78
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);