fidl_fuchsia_memory_attribution__common/

fidl_fuchsia_memory_attribution__common.rs

// WARNING: This file is machine generated by fidlgen.

#![warn(clippy::all)]
#![allow(unused_parens, unused_mut, unused_imports, nonstandard_style)]

use bitflags::bitflags;
use fidl::encoding::{MessageBufFor, ProxyChannelBox, ResourceDialect};
use futures::future::{self, MaybeDone, TryFutureExt};
use zx_status;

/// Unique identifier within the scope of an attribution provider, used to
/// identify a specific principal (Component, part of a Component, etc.)
/// in attribution updates.
/// The `0` identifier should be used to point to the source principal itself.
pub type Identifier = u64;

/// Identifier that refers to the principal that emits the attribution.
pub const SELF: u64 = 0;

#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum Error {
    /// Internal error within the principal.
    Internal,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u32 },
}

/// Pattern that matches an unknown `Error` member.
#[macro_export]
macro_rules! ErrorUnknown {
    () => {
        _
    };
}

impl Error {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::Internal),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u32) -> Self {
        match prim {
            1 => Self::Internal,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xffffffff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        match self {
            Self::Internal => 1,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum PrincipalType {
    /// An independent unit of computation that can be described as
    /// running, such as a component or an application.
    ///
    /// Runnable principals will be shown in the default memory view.
    Runnable,
    /// A part of another principal that isn't independent, such as a
    /// cache.
    ///
    /// Part principals will be shown in the detailed memory view of the
    /// principal they are a part of.
    Part,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u32 },
}

/// Pattern that matches an unknown `PrincipalType` member.
#[macro_export]
macro_rules! PrincipalTypeUnknown {
    () => {
        _
    };
}

impl PrincipalType {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::Runnable),
            2 => Some(Self::Part),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u32) -> Self {
        match prim {
            1 => Self::Runnable,
            2 => Self::Part,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xffffffff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        match self {
            Self::Runnable => 1,
            Self::Part => 2,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

#[derive(Clone, Debug, PartialEq)]
pub struct Data {
    pub resources: Vec<Resource>,
}

impl fidl::Persistable for Data {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct ProcessMapped {
    /// The KOID of the process that this VMAR lives in.
    pub process: u64,
    /// Base address of the VMAR.
    pub base: u64,
    /// Length of the VMAR.
    pub len: u64,
}

impl fidl::Persistable for ProcessMapped {}

#[derive(Clone, Debug)]
pub enum Resource {
    /// Identifies a kernel object whose memory is being attributed.
    ///
    /// Refers to all memory held by VMOs reachable from the object
    /// (currently a Job, Process or VMO).
    KernelObject(u64),
    /// Identifies a part of a process address space.
    ///
    /// This member can be removed if the Zircon kernel exposed KOIDs of
    /// VMARs in memory mapping object information, in which case we
    /// can report the VMAR using `kernel_object`.
    ///
    /// We should consider a generic KOID + range concept if there are
    /// other use cases for describing ranges within a resource.
    ProcessMapped(ProcessMapped),
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u64 },
}

/// Pattern that matches an unknown `Resource` member.
#[macro_export]
macro_rules! ResourceUnknown {
    () => {
        _
    };
}

// Custom PartialEq so that unknown variants are not equal to themselves.
impl PartialEq for Resource {
    fn eq(&self, other: &Self) -> bool {
        match (self, other) {
            (Self::KernelObject(x), Self::KernelObject(y)) => *x == *y,
            (Self::ProcessMapped(x), Self::ProcessMapped(y)) => *x == *y,
            _ => false,
        }
    }
}

impl Resource {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::KernelObject(_) => 1,
            Self::ProcessMapped(_) => 2,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn unknown_variant_for_testing() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0 }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { .. } => true,
            _ => false,
        }
    }
}

impl fidl::Persistable for Resource {}

mod internal {
    use super::*;
    unsafe impl fidl::encoding::TypeMarker for Error {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            false
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for Error {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D> for Error {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for Error {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for PrincipalType {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            false
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for PrincipalType {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D> for PrincipalType {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for PrincipalType {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for Data {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for Data {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Data, D> for &Data {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Data>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<Data, D>::encode(
                (
                    <fidl::encoding::UnboundedVector<Resource> as fidl::encoding::ValueTypeMarker>::borrow(&self.resources),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<fidl::encoding::UnboundedVector<Resource>, D>,
        > fidl::encoding::Encode<Data, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Data>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for Data {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { resources: fidl::new_empty!(fidl::encoding::UnboundedVector<Resource>, D) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            fidl::decode!(
                fidl::encoding::UnboundedVector<Resource>,
                D,
                &mut self.resources,
                decoder,
                offset + 0,
                _depth
            )?;
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for ProcessMapped {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ProcessMapped {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            24
        }
        #[inline(always)]
        fn encode_is_copy() -> bool {
            true
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            true
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<ProcessMapped, D>
        for &ProcessMapped
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ProcessMapped>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut ProcessMapped)
                    .write_unaligned((self as *const ProcessMapped).read());
                // Zero out padding regions. Unlike `fidl_struct_impl_noncopy!`, this must be
                // done second because the memcpy will write garbage to these bytes.
            }
            Ok(())
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<u64, D>,
            T1: fidl::encoding::Encode<u64, D>,
            T2: fidl::encoding::Encode<u64, D>,
        > fidl::encoding::Encode<ProcessMapped, D> for (T0, T1, T2)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ProcessMapped>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            self.2.encode(encoder, offset + 16, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for ProcessMapped {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                process: fidl::new_empty!(u64, D),
                base: fidl::new_empty!(u64, D),
                len: fidl::new_empty!(u64, D),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let buf_ptr = unsafe { decoder.buf.as_ptr().add(offset) };
            // Verify that padding bytes are zero.
            // Copy from the buffer into the object.
            unsafe {
                std::ptr::copy_nonoverlapping(buf_ptr, self as *mut Self as *mut u8, 24);
            }
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for Resource {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for Resource {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Resource, D> for &Resource {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Resource>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                Resource::KernelObject(ref val) => fidl::encoding::encode_in_envelope::<u64, D>(
                    <u64 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                Resource::ProcessMapped(ref val) => {
                    fidl::encoding::encode_in_envelope::<ProcessMapped, D>(
                        <ProcessMapped as fidl::encoding::ValueTypeMarker>::borrow(val),
                        encoder,
                        offset + 8,
                        _depth,
                    )
                }
                Resource::__SourceBreaking { .. } => Err(fidl::Error::UnknownUnionTag),
            }
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for Resource {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::__SourceBreaking { unknown_ordinal: 0 }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
                1 => <u64 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                2 => <ProcessMapped as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                0 => return Err(fidl::Error::UnknownUnionTag),
                _ => num_bytes as usize,
            };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                1 => {
                    #[allow(irrefutable_let_patterns)]
                    if let Resource::KernelObject(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = Resource::KernelObject(fidl::new_empty!(u64, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let Resource::KernelObject(ref mut val) = self {
                        fidl::decode!(u64, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let Resource::ProcessMapped(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = Resource::ProcessMapped(fidl::new_empty!(ProcessMapped, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let Resource::ProcessMapped(ref mut val) = self {
                        fidl::decode!(ProcessMapped, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = Resource::__SourceBreaking { unknown_ordinal: ordinal };
                }
            }
            if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize) {
                return Err(fidl::Error::InvalidNumBytesInEnvelope);
            }
            if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                return Err(fidl::Error::InvalidNumHandlesInEnvelope);
            }
            Ok(())
        }
    }
}