88 lines
3.1 KiB
C
88 lines
3.1 KiB
C
#ifndef _SYS_INOTIFY_H
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#define _SYS_INOTIFY_H 1
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#include <stdint.h>
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/* Structure describing an inotify event. */
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struct inotify_event
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{
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int wd; /* Watch descriptor. */
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uint32_t mask; /* Watch mask. */
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uint32_t cookie; /* Cookie to synchronize two events. */
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uint32_t len; /* Length (including NULs) of name. */
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char name __flexarr; /* Name. */
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};
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/* the following are legal, implemented events that user-space can watch for */
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#define IN_ACCESS 0x00000001 /* File was accessed */
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#define IN_MODIFY 0x00000002 /* File was modified */
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#define IN_ATTRIB 0x00000004 /* Metadata changed */
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#define IN_CLOSE_WRITE 0x00000008 /* Writtable file was closed */
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#define IN_CLOSE_NOWRITE 0x00000010 /* Unwrittable file closed */
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#define IN_OPEN 0x00000020 /* File was opened */
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#define IN_MOVED_FROM 0x00000040 /* File was moved from X */
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#define IN_MOVED_TO 0x00000080 /* File was moved to Y */
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#define IN_CREATE 0x00000100 /* Subfile was created */
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#define IN_DELETE 0x00000200 /* Subfile was deleted */
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#define IN_DELETE_SELF 0x00000400 /* Self was deleted */
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#define IN_MOVE_SELF 0x00000800 /* Self was moved */
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/* the following are legal events. they are sent as needed to any watch */
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#define IN_UNMOUNT 0x00002000 /* Backing fs was unmounted */
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#define IN_Q_OVERFLOW 0x00004000 /* Event queued overflowed */
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#define IN_IGNORED 0x00008000 /* File was ignored */
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/* helper events */
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#define IN_CLOSE (IN_CLOSE_WRITE | IN_CLOSE_NOWRITE) /* close */
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#define IN_MOVE (IN_MOVED_FROM | IN_MOVED_TO) /* moves */
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/* special flags */
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#define IN_ONLYDIR 0x01000000 /* only watch the path if it is a directory */
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#define IN_DONT_FOLLOW 0x02000000 /* don't follow a sym link */
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#define IN_MASK_ADD 0x20000000 /* add to the mask of an already existing watch */
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#define IN_ISDIR 0x40000000 /* event occurred against dir */
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#define IN_ONESHOT 0x80000000 /* only send event once */
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/*
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* All of the events - we build the list by hand so that we can add flags in
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* the future and not break backward compatibility. Apps will get only the
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* events that they originally wanted. Be sure to add new events here!
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*/
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#define IN_ALL_EVENTS (IN_ACCESS | IN_MODIFY | IN_ATTRIB | IN_CLOSE_WRITE | \
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IN_CLOSE_NOWRITE | IN_OPEN | IN_MOVED_FROM | \
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IN_MOVED_TO | IN_DELETE | IN_CREATE | IN_DELETE_SELF | \
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IN_MOVE_SELF)
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/* needed until Inotify! syscalls reach glibc */
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#include <sys/syscall.h>
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#ifndef __NR_inotify_init
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#if defined(__i386__)
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# define __NR_inotify_init 291
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# define __NR_inotify_add_watch 292
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# define __NR_inotify_rm_watch 293
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#elif defined(__x86_64__)
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# define __NR_inotify_init 253
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# define __NR_inotify_add_watch 254
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# define __NR_inotify_rm_watch 255
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#else
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#warning "inotify unsupported on this architecture!"
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#endif
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#endif /* __NR_inotify_init */
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static inline int inotify_init(void)
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{
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return syscall(__NR_inotify_init);
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}
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static inline int inotify_add_watch(int fd, const char *name, uint32_t mask)
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{
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return syscall(__NR_inotify_add_watch, fd, name, mask);
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}
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static inline int inotify_rm_watch(int fd, uint32_t wd)
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{
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return syscall(__NR_inotify_rm_watch, fd, wd);
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}
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#endif /* sys/inotify.h */
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