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c8e2bb5605
The syscall is quite simple:
int watch_file(const char* path, int path_length);
It returns a file descriptor referring to a "InodeWatcher" object in the
kernel. It becomes readable whenever something changes about the inode.
Currently this is implemented by hooking the "metadata dirty bit" in
Inode which isn't perfect, but it's a start. :^)
73 lines
1.3 KiB
C
73 lines
1.3 KiB
C
#pragma once
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#include <sys/cdefs.h>
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#include <sys/types.h>
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__BEGIN_DECLS
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#define F_DUPFD 0
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#define F_GETFD 1
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#define F_SETFD 2
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#define F_GETFL 3
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#define F_SETFL 4
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#define FD_CLOEXEC 1
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#define O_RDONLY 0
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#define O_WRONLY 1
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#define O_RDWR 2
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#define O_CREAT 0100
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#define O_EXCL 0200
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#define O_NOCTTY 0400
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#define O_TRUNC 01000
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#define O_APPEND 02000
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#define O_NONBLOCK 04000
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#define O_DIRECTORY 00200000
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#define O_NOFOLLOW 00400000
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#define O_CLOEXEC 02000000
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#define S_IFMT 0170000
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#define S_IFDIR 0040000
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#define S_IFCHR 0020000
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#define S_IFBLK 0060000
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#define S_IFREG 0100000
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#define S_IFIFO 0010000
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#define S_IFLNK 0120000
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#define S_IFSOCK 0140000
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#define S_ISUID 04000
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#define S_ISGID 02000
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#define S_ISVTX 01000
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#define S_IRUSR 0400
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#define S_IWUSR 0200
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#define S_IXUSR 0100
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#define S_IRGRP 0040
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#define S_IWGRP 0020
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#define S_IXGRP 0010
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#define S_IROTH 0004
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#define S_IWOTH 0002
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#define S_IXOTH 0001
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#define S_IRWXU (S_IRUSR | S_IWUSR | S_IXUSR)
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#define S_IRWXG (S_IRWXU >> 3)
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#define S_IRWXO (S_IRWXG >> 3)
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int fcntl(int fd, int cmd, ...);
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int watch_file(const char* path, int path_length);
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#define F_RDLCK 0
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#define F_WRLCK 1
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#define F_UNLCK 2
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#define F_SETLKW 7
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struct flock {
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short l_type;
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short l_whence;
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off_t l_start;
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off_t l_len;
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pid_t l_pid;
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};
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__END_DECLS
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