Yu Watanabe
bdb492b2ed
As we usually do, remove old unix socket before bind. Note that systemd-udevd-control.socket has `RemoveOnStop=yes`. So, it is not necessary to be removed when the service exits. Replaces #20584 and #20588.
79 lines
2.5 KiB
C
79 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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#include "sd-event.h"
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#include "macro.h"
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#include "time-util.h"
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typedef struct UdevCtrl UdevCtrl;
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typedef enum UdevCtrlMessageType {
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_UDEV_CTRL_END_MESSAGES,
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UDEV_CTRL_SET_LOG_LEVEL,
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UDEV_CTRL_STOP_EXEC_QUEUE,
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UDEV_CTRL_START_EXEC_QUEUE,
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UDEV_CTRL_RELOAD,
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UDEV_CTRL_SET_ENV,
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UDEV_CTRL_SET_CHILDREN_MAX,
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UDEV_CTRL_PING,
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UDEV_CTRL_EXIT,
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} UdevCtrlMessageType;
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typedef union UdevCtrlMessageValue {
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int intval;
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char buf[256];
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} UdevCtrlMessageValue;
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typedef int (*udev_ctrl_handler_t)(UdevCtrl *udev_ctrl, UdevCtrlMessageType type,
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const UdevCtrlMessageValue *value, void *userdata);
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int udev_ctrl_new_from_fd(UdevCtrl **ret, int fd);
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static inline int udev_ctrl_new(UdevCtrl **ret) {
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return udev_ctrl_new_from_fd(ret, -1);
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}
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int udev_ctrl_enable_receiving(UdevCtrl *uctrl);
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UdevCtrl *udev_ctrl_ref(UdevCtrl *uctrl);
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UdevCtrl *udev_ctrl_unref(UdevCtrl *uctrl);
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int udev_ctrl_attach_event(UdevCtrl *uctrl, sd_event *event);
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int udev_ctrl_start(UdevCtrl *uctrl, udev_ctrl_handler_t callback, void *userdata);
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sd_event_source *udev_ctrl_get_event_source(UdevCtrl *uctrl);
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int udev_ctrl_wait(UdevCtrl *uctrl, usec_t timeout);
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int udev_ctrl_send(UdevCtrl *uctrl, UdevCtrlMessageType type, int intval, const char *buf);
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static inline int udev_ctrl_send_set_log_level(UdevCtrl *uctrl, int priority) {
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return udev_ctrl_send(uctrl, UDEV_CTRL_SET_LOG_LEVEL, priority, NULL);
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}
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static inline int udev_ctrl_send_stop_exec_queue(UdevCtrl *uctrl) {
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return udev_ctrl_send(uctrl, UDEV_CTRL_STOP_EXEC_QUEUE, 0, NULL);
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}
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static inline int udev_ctrl_send_start_exec_queue(UdevCtrl *uctrl) {
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return udev_ctrl_send(uctrl, UDEV_CTRL_START_EXEC_QUEUE, 0, NULL);
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}
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static inline int udev_ctrl_send_reload(UdevCtrl *uctrl) {
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return udev_ctrl_send(uctrl, UDEV_CTRL_RELOAD, 0, NULL);
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}
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static inline int udev_ctrl_send_set_env(UdevCtrl *uctrl, const char *key) {
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return udev_ctrl_send(uctrl, UDEV_CTRL_SET_ENV, 0, key);
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}
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static inline int udev_ctrl_send_set_children_max(UdevCtrl *uctrl, int count) {
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return udev_ctrl_send(uctrl, UDEV_CTRL_SET_CHILDREN_MAX, count, NULL);
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}
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static inline int udev_ctrl_send_ping(UdevCtrl *uctrl) {
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return udev_ctrl_send(uctrl, UDEV_CTRL_PING, 0, NULL);
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}
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static inline int udev_ctrl_send_exit(UdevCtrl *uctrl) {
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return udev_ctrl_send(uctrl, UDEV_CTRL_EXIT, 0, NULL);
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}
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DEFINE_TRIVIAL_CLEANUP_FUNC(UdevCtrl*, udev_ctrl_unref);
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