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Kernel: Add a mechanism for listening for changes to an inode.
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. :^)
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12 changed files with 200 additions and 3 deletions
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@ -14,4 +14,11 @@ int fcntl(int fd, int cmd, ...)
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int rc = syscall(SC_fcntl, fd, cmd, extra_arg);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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int watch_file(const char* path, int path_length)
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{
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int rc = syscall(SC_watch_file, path, path_length);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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}
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