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/* SPDX-License-Identifier: GPL-2.0-or-later */
#pragma once
#include "sd-event.h"
#include "macro.h"
#include "process-util.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,
UDEV_CTRL_SENDER_PID,
} UdevCtrlMessageType;
typedef union UdevCtrlMessageValue {
int intval;
pid_t pid;
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_is_connected(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);
}
static inline int udev_ctrl_send_pid(UdevCtrl *uctrl) {
return udev_ctrl_send(uctrl, UDEV_CTRL_SENDER_PID, PID_TO_PTR(getpid_cached()));
}
DEFINE_TRIVIAL_CLEANUP_FUNC(UdevCtrl*, udev_ctrl_unref);
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