/// A utility for generating the contents of a seq file. #[repr(transparent)] pubstruct SeqFile {
inner: Opaque<bindings::seq_file>,
_not_send: NotThreadSafe,
}
impl SeqFile { /// Creates a new [`SeqFile`] from a raw pointer. /// /// # Safety /// /// The caller must ensure that for the duration of `'a` the following is satisfied: /// * The pointer points at a valid `struct seq_file`. /// * The `struct seq_file` is not accessed from any other thread. pubunsafefn from_raw<'a>(ptr: *mut bindings::seq_file) -> &'a SeqFile { // SAFETY: The caller ensures that the reference is valid for 'a. There's no way to trigger // a data race by using the `&SeqFile` since this is the only thread accessing the seq_file. // // CAST: The layout of `struct seq_file` and `SeqFile` is compatible. unsafe { &*ptr.cast() }
}
/// Used by the [`seq_print`] macro. #[inline] pubfn call_printf(&self, args: core::fmt::Arguments<'_>) { // SAFETY: Passing a void pointer to `Arguments` is valid for `%pA`. unsafe {
bindings::seq_printf( self.inner.get(),
c_str!("%pA").as_char_ptr(),
core::ptr::from_ref(&args).cast::<crate::ffi::c_void>(),
);
}
}
}
/// Write to a [`SeqFile`] with the ordinary Rust formatting syntax. #[macro_export]
macro_rules! seq_print {
($m:expr, $($arg:tt)+) => (
$m.call_printf(format_args!($($arg)+))
);
} pubuse seq_print;
Messung V0.5 in Prozent
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(vorverarbeitet am 2026-06-19)
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