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libmount/src/monitor.h
50 строк
2 KB
Karel Zak
libmount: (monitor) add next-fs API
06 авг 2025, 15:52
06 авг 2025, 15:52
dbd9c51
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/* SPDX-License-Identifier: LGPL-2.1-or-later */ #ifndef _MNTMONITOR_PRIVATE_H #define _MNTMONITOR_PRIVATE_H #include "c.h" #include <stdbool.h> struct monitor_opers; struct monitor_entry { int fd; /* private entry file descriptor */ int id; /* external identifier (-1 for undefined) */ char *path; /* path to the monitored file */ int type; /* MNT_MONITOR_TYPE_* */ uint32_t events; /* wanted epoll events */ const struct monitor_opers *opers; void *data; /* private type-specific data */ bool enabled, /* monitoring fd */ active; /* ready for mnt_monitor_next_change() */ struct list_head ents; }; struct libmnt_monitor { int refcount; int fd; /* public monitor file descriptor */ struct list_head ents; struct monitor_entry *last; /* last active returned by mnt_monitor_next_change() */ bool kernel_veiled; }; struct monitor_opers { int (*op_get_fd)(struct libmnt_monitor *, struct monitor_entry *); int (*op_close_fd)(struct libmnt_monitor *, struct monitor_entry *); int (*op_free_data)(struct monitor_entry *); int (*op_process_event)(struct libmnt_monitor *, struct monitor_entry *); int (*op_next_fs)(struct libmnt_monitor *, struct monitor_entry *, struct libmnt_fs *); }; int monitor_modify_epoll(struct libmnt_monitor *mn, struct monitor_entry *me, int enable); struct monitor_entry *monitor_get_entry(struct libmnt_monitor *mn, int type, int id); struct monitor_entry *monitor_new_entry(struct libmnt_monitor *mn); void free_monitor_entry(struct monitor_entry *me); #endif /* _MNTMONITOR_PRIVATE_H */