rustdoc-pin_init_internal: private rustdoc_host = yes
rustdoc-pin_init_internal: private rustc_target_flags = --cfg kernel \
--extern proc_macro --crate-type proc-macro
-rustdoc-pin_init_internal: $(src)/pin-init/internal/src/_lib.rs FORCE
+rustdoc-pin_init_internal: $(src)/pin-init/internal/src/lib.rs FORCE
+$(call if_changed,rustdoc)
rustdoc-pin_init: private rustdoc_host = yes
rustdoc-pin_init: private rustc_target_flags = --extern pin_init_internal \
- --extern macros --extern alloc --cfg kernel --cfg feature=\"alloc\"
-rustdoc-pin_init: $(src)/pin-init/src/_lib.rs rustdoc-pin_init_internal \
+ --extern macros --extern force:alloc --cfg kernel --cfg feature=\"alloc\"
+rustdoc-pin_init: $(src)/pin-init/src/lib.rs rustdoc-pin_init_internal \
rustdoc-macros FORCE
+$(call if_changed,rustdoc)
rusttestlib-pin_init_internal: private rustc_target_flags = --cfg kernel \
--extern proc_macro
rusttestlib-pin_init_internal: private rustc_test_library_proc = yes
-rusttestlib-pin_init_internal: $(src)/pin-init/internal/src/_lib.rs FORCE
+rusttestlib-pin_init_internal: $(src)/pin-init/internal/src/lib.rs FORCE
+$(call if_changed,rustc_test_library)
rusttestlib-pin_init: private rustc_target_flags = --extern pin_init_internal \
--extern macros --cfg kernel
-rusttestlib-pin_init: $(src)/pin-init/src/_lib.rs rusttestlib-macros \
+rusttestlib-pin_init: $(src)/pin-init/src/lib.rs rusttestlib-macros \
rusttestlib-pin_init_internal $(obj)/$(libpin_init_internal_name) FORCE
+$(call if_changed,rustc_test_library)
+$(call if_changed_dep,rustc_procmacro)
$(obj)/$(libpin_init_internal_name): private rustc_target_flags = --cfg kernel
-$(obj)/$(libpin_init_internal_name): $(src)/pin-init/internal/src/_lib.rs FORCE
+$(obj)/$(libpin_init_internal_name): $(src)/pin-init/internal/src/lib.rs FORCE
+$(call if_changed_dep,rustc_procmacro)
quiet_cmd_rustc_library = $(if $(skip_clippy),RUSTC,$(RUSTC_OR_CLIPPY_QUIET)) L $@
$(obj)/pin_init.o: private skip_gendwarfksyms = 1
$(obj)/pin_init.o: private rustc_target_flags = --extern pin_init_internal \
--extern macros --cfg kernel
-$(obj)/pin_init.o: $(src)/pin-init/src/_lib.rs $(obj)/compiler_builtins.o \
+$(obj)/pin_init.o: $(src)/pin-init/src/lib.rs $(obj)/compiler_builtins.o \
$(obj)/$(libpin_init_internal_name) $(obj)/$(libmacros_name) FORCE
+$(call if_changed_rule,rustc_library)
use core::ptr::NonNull;
use core::result::Result;
-use crate::init::{InPlaceWrite, Init, PinInit, ZeroableOption};
-use crate::init_ext::InPlaceInit;
+use crate::init::InPlaceInit;
use crate::types::ForeignOwnable;
+use pin_init::{InPlaceWrite, Init, PinInit, ZeroableOption};
/// The kernel's [`Box`] type -- a heap allocation for a single value of type `T`.
///
bindings,
block::mq::{operations::OperationsVTable, request::RequestDataWrapper, Operations},
error,
- prelude::PinInit,
- try_pin_init,
+ prelude::try_pin_init,
types::Opaque,
};
use core::{convert::TryInto, marker::PhantomData};
-use macros::{pin_data, pinned_drop};
+use pin_init::{pin_data, pinned_drop, PinInit};
/// A wrapper for the C `struct blk_mq_tag_set`.
///
//! register using the [`Registration`] class.
use crate::error::{Error, Result};
-use crate::{device, init::PinInit, of, str::CStr, try_pin_init, types::Opaque, ThisModule};
+use crate::{device, of, str::CStr, try_pin_init, types::Opaque, ThisModule};
use core::pin::Pin;
-use macros::{pin_data, pinned_drop};
+use pin_init::{pin_data, pinned_drop, PinInit};
/// The [`RegistrationOps`] trait serves as generic interface for subsystems (e.g., PCI, Platform,
/// Amba, etc.) to provide the corresponding subsystem specific implementation to register /
impl $crate::InPlaceModule for DriverModule {
fn init(
module: &'static $crate::ThisModule
- ) -> impl $crate::init::PinInit<Self, $crate::error::Error> {
+ ) -> impl ::pin_init::PinInit<Self, $crate::error::Error> {
$crate::try_pin_init!(Self {
_driver <- $crate::driver::Registration::new(
<Self as $crate::ModuleMetadata>::NAME,
//!
//! [`Opaque<T>`]: crate::types::Opaque
//! [`Opaque::ffi_init`]: crate::types::Opaque::ffi_init
-//! [`pin_init!`]: crate::pin_init
+//! [`pin_init!`]: pin_init::pin_init
//!
//! # Examples
//!
use crate::{
alloc::{AllocError, Flags},
error::{self, Error},
- init::{init_from_closure, pin_init_from_closure, Init, PinInit},
};
+use pin_init::{init_from_closure, pin_init_from_closure, Init, PinInit};
/// Smart pointer that can initialize memory in-place.
pub trait InPlaceInit<T>: Sized {
/// # Examples
///
/// ```rust
-/// use kernel::{init::zeroed, error::Error};
+/// use kernel::error::Error;
+/// use pin_init::zeroed;
/// struct BigBuf {
/// big: KBox<[u8; 1024 * 1024 * 1024]>,
/// small: [u8; 1024 * 1024],
/// ```
///
/// [`Infallible`]: core::convert::Infallible
-/// [`init!`]: crate::init!
+/// [`init!`]: pin_init::init
/// [`try_pin_init!`]: crate::try_pin_init!
/// [`Error`]: crate::error::Error
#[macro_export]
($(&$this:ident in)? $t:ident $(::<$($generics:ty),* $(,)?>)? {
$($fields:tt)*
}) => {
- $crate::_try_init!($(&$this in)? $t $(::<$($generics),* $(,)?>)? {
+ ::pin_init::try_init!($(&$this in)? $t $(::<$($generics),* $(,)?>)? {
$($fields)*
}? $crate::error::Error)
};
($(&$this:ident in)? $t:ident $(::<$($generics:ty),* $(,)?>)? {
$($fields:tt)*
}? $err:ty) => {
- $crate::_try_init!($(&$this in)? $t $(::<$($generics),* $(,)?>)? {
+ ::pin_init::try_init!($(&$this in)? $t $(::<$($generics),* $(,)?>)? {
$($fields)*
}? $err)
};
///
/// ```rust
/// # #![feature(new_uninit)]
-/// use kernel::{init::zeroed, error::Error};
+/// use kernel::error::Error;
+/// use pin_init::zeroed;
/// #[pin_data]
/// struct BigBuf {
/// big: KBox<[u8; 1024 * 1024 * 1024]>,
/// ```
///
/// [`Infallible`]: core::convert::Infallible
-/// [`pin_init!`]: crate::pin_init
+/// [`pin_init!`]: pin_init::pin_init
/// [`Error`]: crate::error::Error
#[macro_export]
macro_rules! try_pin_init {
($(&$this:ident in)? $t:ident $(::<$($generics:ty),* $(,)?>)? {
$($fields:tt)*
}) => {
- $crate::_try_pin_init!($(&$this in)? $t $(::<$($generics),* $(,)?>)? {
+ ::pin_init::try_pin_init!($(&$this in)? $t $(::<$($generics),* $(,)?>)? {
$($fields)*
}? $crate::error::Error)
};
($(&$this:ident in)? $t:ident $(::<$($generics:ty),* $(,)?>)? {
$($fields:tt)*
}? $err:ty) => {
- $crate::_try_pin_init!($(&$this in)? $t $(::<$($generics),* $(,)?>)? {
+ ::pin_init::try_pin_init!($(&$this in)? $t $(::<$($generics),* $(,)?>)? {
$($fields)*
}? $err)
};
#[cfg(CONFIG_RUST_FW_LOADER_ABSTRACTIONS)]
pub mod firmware;
pub mod fs;
-#[path = "../pin-init/src/lib.rs"]
pub mod init;
-// momentarily use the name `init_ext` and set the path manually
-#[path = "init.rs"]
-pub mod init_ext;
pub mod io;
pub mod ioctl;
pub mod jump_label;
/// Creates an initialiser for the module.
///
/// It is called when the module is loaded.
- fn init(module: &'static ThisModule) -> impl init::PinInit<Self, error::Error>;
+ fn init(module: &'static ThisModule) -> impl pin_init::PinInit<Self, error::Error>;
}
impl<T: Module> InPlaceModule for T {
- fn init(module: &'static ThisModule) -> impl init::PinInit<Self, error::Error> {
+ fn init(module: &'static ThisModule) -> impl pin_init::PinInit<Self, error::Error> {
let initer = move |slot: *mut Self| {
let m = <Self as Module>::init(module)?;
};
// SAFETY: On success, `initer` always fully initialises an instance of `Self`.
- unsafe { init::pin_init_from_closure(initer) }
+ unsafe { pin_init::pin_init_from_closure(initer) }
}
}
//! A linked list implementation.
-use crate::init::PinInit;
use crate::sync::ArcBorrow;
use crate::types::Opaque;
use core::iter::{DoubleEndedIterator, FusedIterator};
use core::marker::PhantomData;
use core::ptr;
+use pin_init::PinInit;
mod impl_list_item_mod;
pub use self::impl_list_item_mod::{
pub use crate::alloc::{flags::*, Box, KBox, KVBox, KVVec, KVec, VBox, VVec, Vec};
#[doc(no_inline)]
-pub use macros::{export, module, pin_data, pinned_drop, vtable, Zeroable};
+pub use macros::{export, module, vtable};
+
+pub use pin_init::{init, pin_data, pin_init, pinned_drop, InPlaceWrite, Init, PinInit, Zeroable};
pub use super::{build_assert, build_error};
pub use super::{dev_alert, dev_crit, dev_dbg, dev_emerg, dev_err, dev_info, dev_notice, dev_warn};
pub use super::{pr_alert, pr_crit, pr_debug, pr_emerg, pr_err, pr_info, pr_notice, pr_warn};
-pub use super::{init, pin_init, try_init, try_pin_init};
+pub use super::{try_init, try_pin_init};
pub use super::static_assert;
pub use super::{str::CStr, ThisModule};
-pub use super::init::{InPlaceWrite, Init, PinInit};
-pub use super::init_ext::InPlaceInit;
+pub use super::init::InPlaceInit;
pub use super::current;
use crate::{
alloc::{AllocError, Flags, KBox},
bindings,
- init::{self, InPlaceWrite, Init, PinInit},
- init_ext::InPlaceInit,
+ init::InPlaceInit,
try_init,
types::{ForeignOwnable, Opaque},
};
pin::Pin,
ptr::NonNull,
};
-use macros::pin_data;
+use pin_init::{self, pin_data, InPlaceWrite, Init, PinInit};
mod std_vendor;
try_init!(ArcInner {
// SAFETY: There are no safety requirements for this FFI call.
refcount: Opaque::new(unsafe { bindings::REFCOUNT_INIT(1) }),
- data <- init::uninit::<T, AllocError>(),
+ data <- pin_init::uninit::<T, AllocError>(),
}? AllocError),
flags,
)?;
use super::{lock::Backend, lock::Guard, LockClassKey};
use crate::{
ffi::{c_int, c_long},
- init::PinInit,
- pin_init,
str::CStr,
task::{MAX_SCHEDULE_TIMEOUT, TASK_INTERRUPTIBLE, TASK_NORMAL, TASK_UNINTERRUPTIBLE},
time::Jiffies,
};
use core::marker::PhantomPinned;
use core::ptr;
-use macros::pin_data;
+use pin_init::{pin_data, pin_init, PinInit};
/// Creates a [`CondVar`] initialiser with the given name and a newly-created lock class.
#[macro_export]
use super::LockClassKey;
use crate::{
- init::PinInit,
- pin_init,
str::CStr,
types::{NotThreadSafe, Opaque, ScopeGuard},
};
use core::{cell::UnsafeCell, marker::PhantomPinned};
-use macros::pin_data;
+use pin_init::{pin_data, pin_init, PinInit};
pub mod mutex;
pub mod spinlock;
/// Since it may block, [`Mutex`] needs to be used with care in atomic contexts.
///
/// Instances of [`Mutex`] need a lock class and to be pinned. The recommended way to create such
-/// instances is with the [`pin_init`](crate::pin_init) and [`new_mutex`] macros.
+/// instances is with the [`pin_init`](pin_init::pin_init) and [`new_mutex`] macros.
///
/// # Examples
///
/// unlocked, at which point another CPU will be allowed to make progress.
///
/// Instances of [`SpinLock`] need a lock class and to be pinned. The recommended way to create such
-/// instances is with the [`pin_init`](crate::pin_init) and [`new_spinlock`] macros.
+/// instances is with the [`pin_init`](pin_init::pin_init) and [`new_spinlock`] macros.
///
/// # Examples
///
//! Kernel types.
-use crate::init::{self, PinInit, Zeroable};
use core::{
cell::UnsafeCell,
marker::{PhantomData, PhantomPinned},
ops::{Deref, DerefMut},
ptr::NonNull,
};
+use pin_init::{PinInit, Zeroable};
/// Used to transfer ownership to and from foreign (non-Rust) languages.
///
// - `ptr` is a valid pointer to uninitialized memory,
// - `slot` is not accessed on error; the call is infallible,
// - `slot` is pinned in memory.
- let _ = unsafe { init::PinInit::<T>::__pinned_init(slot, ptr) };
+ let _ = unsafe { PinInit::<T>::__pinned_init(slot, ptr) };
})
}
// SAFETY: We contain a `MaybeUninit`, so it is OK for the `init_func` to not fully
// initialize the `T`.
unsafe {
- init::pin_init_from_closure::<_, ::core::convert::Infallible>(move |slot| {
+ pin_init::pin_init_from_closure::<_, ::core::convert::Infallible>(move |slot| {
init_func(Self::raw_get(slot));
Ok(())
})
) -> impl PinInit<Self, E> {
// SAFETY: We contain a `MaybeUninit`, so it is OK for the `init_func` to not fully
// initialize the `T`.
- unsafe { init::pin_init_from_closure::<_, E>(move |slot| init_func(Self::raw_get(slot))) }
+ unsafe {
+ pin_init::pin_init_from_closure::<_, E>(move |slot| init_func(Self::raw_get(slot)))
+ }
}
/// Returns a raw pointer to the opaque data.
}
None
}
-
-include!("../pin-init/internal/src/helpers.rs");
mod helpers;
mod module;
mod paste;
-#[path = "../pin-init/internal/src/pin_data.rs"]
-mod pin_data;
-#[path = "../pin-init/internal/src/pinned_drop.rs"]
-mod pinned_drop;
mod vtable;
-#[path = "../pin-init/internal/src/zeroable.rs"]
-mod zeroable;
use proc_macro::TokenStream;
paste::expand(&mut tokens);
tokens.into_iter().collect()
}
-
-include!("../pin-init/internal/src/lib.rs");
mod __module_init {{
mod __module_init {{
use super::super::{type_};
- use kernel::init::PinInit;
+ use pin_init::PinInit;
/// The \"Rust loadable module\" mark.
//
use proc_macro::{TokenStream, TokenTree};
+#[allow(dead_code)]
pub(crate) trait ToTokens {
fn to_tokens(&self, tokens: &mut TokenStream);
}
+++ /dev/null
-// SPDX-License-Identifier: Apache-2.0 OR MIT
-
-//! Will be removed in a future commit, only exists to prevent compilation errors.
// SPDX-License-Identifier: Apache-2.0 OR MIT
+use proc_macro::{TokenStream, TokenTree};
+
/// Parsed generics.
///
/// See the field documentation for an explanation what each of the fields represents.
// and thus add a dependency on `include/config/RUSTC_VERSION_TEXT`, which is
// touched by Kconfig when the version string from the compiler changes.
+//! `pin-init` proc macros.
+
+#![cfg_attr(not(RUSTC_LINT_REASONS_IS_STABLE), feature(lint_reasons))]
+
+use proc_macro::TokenStream;
+
+#[cfg(kernel)]
+#[path = "../../../macros/quote.rs"]
+#[macro_use]
+mod quote;
+
+mod helpers;
+mod pin_data;
+mod pinned_drop;
+mod zeroable;
+
#[allow(missing_docs)]
#[proc_macro_attribute]
pub fn pin_data(inner: TokenStream, item: TokenStream) -> TokenStream {
pub(crate) fn pin_data(args: TokenStream, input: TokenStream) -> TokenStream {
// This proc-macro only does some pre-parsing and then delegates the actual parsing to
- // `kernel::__pin_data!`.
+ // `pin_init::__pin_data!`.
let (
Generics {
.collect::<Vec<_>>();
// This should be the body of the struct `{...}`.
let last = rest.pop();
- let mut quoted = quote!(::kernel::__pin_data! {
+ let mut quoted = quote!(::pin_init::__pin_data! {
parse_input:
@args(#args),
@sig(#(#rest)*),
let idx = pinned_drop_idx
.unwrap_or_else(|| panic!("Expected an `impl` block implementing `PinnedDrop`."));
// Fully qualify the `PinnedDrop`, as to avoid any tampering.
- toks.splice(idx..idx, quote!(::kernel::init::));
+ toks.splice(idx..idx, quote!(::pin_init::));
// Take the `{}` body and call the declarative macro.
if let Some(TokenTree::Group(last)) = toks.pop() {
let last = last.stream();
- quote!(::kernel::__pinned_drop! {
+ quote!(::pin_init::__pinned_drop! {
@impl_sig(#(#toks)*),
@impl_body(#last),
})
// If we find a `,`, then we have finished a generic/constant/lifetime parameter.
TokenTree::Punct(p) if nested == 0 && p.as_char() == ',' => {
if in_generic && !inserted {
- new_impl_generics.extend(quote! { : ::kernel::init::Zeroable });
+ new_impl_generics.extend(quote! { : ::pin_init::Zeroable });
}
in_generic = true;
inserted = false;
TokenTree::Punct(p) if nested == 0 && p.as_char() == ':' => {
new_impl_generics.push(tt);
if in_generic {
- new_impl_generics.extend(quote! { ::kernel::init::Zeroable + });
+ new_impl_generics.extend(quote! { ::pin_init::Zeroable + });
inserted = true;
}
}
}
assert_eq!(nested, 0);
if in_generic && !inserted {
- new_impl_generics.extend(quote! { : ::kernel::init::Zeroable });
+ new_impl_generics.extend(quote! { : ::pin_init::Zeroable });
}
quote! {
- ::kernel::__derive_zeroable!(
+ ::pin_init::__derive_zeroable!(
parse_input:
@sig(#(#rest)*),
@impl_generics(#(#new_impl_generics)*),
+++ /dev/null
-// SPDX-License-Identifier: Apache-2.0 OR MIT
-
-//! Will be removed in a future commit, only exists to prevent compilation errors.
-
-#![no_std]
//! [`impl PinInit<Foo>`]: PinInit
//! [`impl PinInit<T, E>`]: PinInit
//! [`impl Init<T, E>`]: Init
-//! [`pin_data`]: ::macros::pin_data
+//! [`pin_data`]: crate::pin_data
//! [`pin_init!`]: crate::pin_init!
+#![cfg_attr(not(RUSTC_LINT_REASONS_IS_STABLE), feature(lint_reasons))]
+#![cfg_attr(
+ all(
+ any(feature = "alloc", feature = "std"),
+ not(RUSTC_NEW_UNINIT_IS_STABLE)
+ ),
+ feature(new_uninit)
+)]
+#![forbid(missing_docs, unsafe_op_in_unsafe_fn)]
+#![cfg_attr(not(feature = "std"), no_std)]
+#![cfg_attr(feature = "alloc", feature(allocator_api))]
+
use core::{
cell::UnsafeCell,
convert::Infallible,
/// ```
///
/// [`pin_init!`]: crate::pin_init
-pub use ::macros::pin_data;
+pub use ::pin_init_internal::pin_data;
/// Used to implement `PinnedDrop` safely.
///
/// }
/// }
/// ```
-pub use ::macros::pinned_drop;
+pub use ::pin_init_internal::pinned_drop;
/// Derives the [`Zeroable`] trait for the given struct.
///
/// len: usize,
/// }
/// ```
-pub use ::macros::Zeroable;
+pub use ::pin_init_internal::Zeroable;
/// Initialize and pin a type directly on the stack.
///
macro_rules! stack_pin_init {
(let $var:ident $(: $t:ty)? = $val:expr) => {
let val = $val;
- let mut $var = ::core::pin::pin!($crate::init::__internal::StackInit$(::<$t>)?::uninit());
- let mut $var = match $crate::init::__internal::StackInit::init($var, val) {
+ let mut $var = ::core::pin::pin!($crate::__internal::StackInit$(::<$t>)?::uninit());
+ let mut $var = match $crate::__internal::StackInit::init($var, val) {
Ok(res) => res,
Err(x) => {
let x: ::core::convert::Infallible = x;
macro_rules! stack_try_pin_init {
(let $var:ident $(: $t:ty)? = $val:expr) => {
let val = $val;
- let mut $var = ::core::pin::pin!($crate::init::__internal::StackInit$(::<$t>)?::uninit());
- let mut $var = $crate::init::__internal::StackInit::init($var, val);
+ let mut $var = ::core::pin::pin!($crate::__internal::StackInit$(::<$t>)?::uninit());
+ let mut $var = $crate::__internal::StackInit::init($var, val);
};
(let $var:ident $(: $t:ty)? =? $val:expr) => {
let val = $val;
- let mut $var = ::core::pin::pin!($crate::init::__internal::StackInit$(::<$t>)?::uninit());
- let mut $var = $crate::init::__internal::StackInit::init($var, val)?;
+ let mut $var = ::core::pin::pin!($crate::__internal::StackInit$(::<$t>)?::uninit());
+ let mut $var = $crate::__internal::StackInit::init($var, val)?;
};
}
($(&$this:ident in)? $t:ident $(::<$($generics:ty),* $(,)?>)? {
$($fields:tt)*
}) => {
- $crate::_try_pin_init!($(&$this in)? $t $(::<$($generics),*>)? {
+ $crate::try_pin_init!($(&$this in)? $t $(::<$($generics),*>)? {
$($fields)*
}? ::core::convert::Infallible)
};
// For a detailed example of how this macro works, see the module documentation of the hidden
// module `__internal` inside of `init/__internal.rs`.
#[macro_export]
-macro_rules! _try_pin_init {
+macro_rules! try_pin_init {
($(&$this:ident in)? $t:ident $(::<$($generics:ty),* $(,)?>)? {
$($fields:tt)*
}? $err:ty) => {
($(&$this:ident in)? $t:ident $(::<$($generics:ty),* $(,)?>)? {
$($fields:tt)*
}) => {
- $crate::_try_init!($(&$this in)? $t $(::<$($generics),*>)? {
+ $crate::try_init!($(&$this in)? $t $(::<$($generics),*>)? {
$($fields)*
}? ::core::convert::Infallible)
}
// For a detailed example of how this macro works, see the module documentation of the hidden
// module `__internal` inside of `init/__internal.rs`.
#[macro_export]
-macro_rules! _try_init {
+macro_rules! try_init {
($(&$this:ident in)? $t:ident $(::<$($generics:ty),* $(,)?>)? {
$($fields:tt)*
}? $err:ty) => {
($ty:ty, $field:ident, $field_ty:ty, inline) => {
let _ = move |ptr: *mut $field_ty| {
// SAFETY: This code is unreachable.
- let data = unsafe { <$ty as $crate::init::__internal::HasPinData>::__pin_data() };
- let init = $crate::init::__internal::AlwaysFail::<$field_ty>::new();
+ let data = unsafe { <$ty as $crate::__internal::HasPinData>::__pin_data() };
+ let init = $crate::__internal::AlwaysFail::<$field_ty>::new();
// SAFETY: This code is unreachable.
unsafe { data.$field(ptr, init) }.ok();
};
///
/// This trait must be implemented via the [`pinned_drop`] proc-macro attribute on the impl.
///
-/// [`pinned_drop`]: crate::macros::pinned_drop
+/// [`pinned_drop`]: crate::pinned_drop
pub unsafe trait PinnedDrop: __internal::HasPinData {
/// Executes the pinned destructor of this type.
///
//! We will look at the following example:
//!
//! ```rust,ignore
-//! # use kernel::init::*;
+//! # use pin_init::*;
//! # use core::pin::Pin;
//! #[pin_data]
//! #[repr(C)]
//! Here is the definition of `Bar` from our example:
//!
//! ```rust,ignore
-//! # use kernel::init::*;
+//! # use pin_init::*;
//! #[pin_data]
//! #[repr(C)]
//! struct Bar<T> {
//! self,
//! slot: *mut T,
//! // Since `t` is `#[pin]`, this is `PinInit`.
-//! init: impl ::kernel::init::PinInit<T, E>,
+//! init: impl ::pin_init::PinInit<T, E>,
//! ) -> ::core::result::Result<(), E> {
-//! unsafe { ::kernel::init::PinInit::__pinned_init(init, slot) }
+//! unsafe { ::pin_init::PinInit::__pinned_init(init, slot) }
//! }
//! pub unsafe fn x<E>(
//! self,
//! slot: *mut usize,
//! // Since `x` is not `#[pin]`, this is `Init`.
-//! init: impl ::kernel::init::Init<usize, E>,
+//! init: impl ::pin_init::Init<usize, E>,
//! ) -> ::core::result::Result<(), E> {
-//! unsafe { ::kernel::init::Init::__init(init, slot) }
+//! unsafe { ::pin_init::Init::__init(init, slot) }
//! }
//! }
//! // Implement the internal `HasPinData` trait that associates `Bar` with the pin-data struct
//! // that we constructed above.
-//! unsafe impl<T> ::kernel::init::__internal::HasPinData for Bar<T> {
+//! unsafe impl<T> ::pin_init::__internal::HasPinData for Bar<T> {
//! type PinData = __ThePinData<T>;
//! unsafe fn __pin_data() -> Self::PinData {
//! __ThePinData {
//! // Implement the internal `PinData` trait that marks the pin-data struct as a pin-data
//! // struct. This is important to ensure that no user can implement a rogue `__pin_data`
//! // function without using `unsafe`.
-//! unsafe impl<T> ::kernel::init::__internal::PinData for __ThePinData<T> {
+//! unsafe impl<T> ::pin_init::__internal::PinData for __ThePinData<T> {
//! type Datee = Bar<T>;
//! }
//! // Now we only want to implement `Unpin` for `Bar` when every structurally pinned field is
//! #[expect(non_camel_case_types)]
//! trait UselessPinnedDropImpl_you_need_to_specify_PinnedDrop {}
//! impl<
-//! T: ::kernel::init::PinnedDrop,
+//! T: ::pin_init::PinnedDrop,
//! > UselessPinnedDropImpl_you_need_to_specify_PinnedDrop for T {}
//! impl<T> UselessPinnedDropImpl_you_need_to_specify_PinnedDrop for Bar<T> {}
//! };
//! // - we `use` the `HasPinData` trait in the block, it is only available in that
//! // scope.
//! let data = unsafe {
-//! use ::kernel::init::__internal::HasPinData;
+//! use ::pin_init::__internal::HasPinData;
//! Self::__pin_data()
//! };
//! // Ensure that `data` really is of type `PinData` and help with type inference:
-//! let init = ::kernel::init::__internal::PinData::make_closure::<
+//! let init = ::pin_init::__internal::PinData::make_closure::<
//! _,
//! __InitOk,
//! ::core::convert::Infallible,
//! }
//! // We again create a `DropGuard`.
//! let __x_guard = unsafe {
-//! ::kernel::init::__internal::DropGuard::new(::core::addr_of_mut!((*slot).x))
+//! ::pin_init::__internal::DropGuard::new(::core::addr_of_mut!((*slot).x))
//! };
//! // Since initialization has successfully completed, we can now forget
//! // the guards. This is not `mem::forget`, since we only have
//! };
//! // Construct the initializer.
//! let init = unsafe {
-//! ::kernel::init::pin_init_from_closure::<
+//! ::pin_init::pin_init_from_closure::<
//! _,
//! ::core::convert::Infallible,
//! >(init)
//! unsafe fn b<E>(
//! self,
//! slot: *mut Bar<u32>,
-//! init: impl ::kernel::init::PinInit<Bar<u32>, E>,
+//! init: impl ::pin_init::PinInit<Bar<u32>, E>,
//! ) -> ::core::result::Result<(), E> {
-//! unsafe { ::kernel::init::PinInit::__pinned_init(init, slot) }
+//! unsafe { ::pin_init::PinInit::__pinned_init(init, slot) }
//! }
//! unsafe fn a<E>(
//! self,
//! slot: *mut usize,
-//! init: impl ::kernel::init::Init<usize, E>,
+//! init: impl ::pin_init::Init<usize, E>,
//! ) -> ::core::result::Result<(), E> {
-//! unsafe { ::kernel::init::Init::__init(init, slot) }
+//! unsafe { ::pin_init::Init::__init(init, slot) }
//! }
//! }
-//! unsafe impl ::kernel::init::__internal::HasPinData for Foo {
+//! unsafe impl ::pin_init::__internal::HasPinData for Foo {
//! type PinData = __ThePinData;
//! unsafe fn __pin_data() -> Self::PinData {
//! __ThePinData {
//! }
//! }
//! }
-//! unsafe impl ::kernel::init::__internal::PinData for __ThePinData {
+//! unsafe impl ::pin_init::__internal::PinData for __ThePinData {
//! type Datee = Foo;
//! }
//! #[allow(dead_code)]
//! let pinned = unsafe { ::core::pin::Pin::new_unchecked(self) };
//! // Create the unsafe token that proves that we are inside of a destructor, this
//! // type is only allowed to be created in a destructor.
-//! let token = unsafe { ::kernel::init::__internal::OnlyCallFromDrop::new() };
-//! ::kernel::init::PinnedDrop::drop(pinned, token);
+//! let token = unsafe { ::pin_init::__internal::OnlyCallFromDrop::new() };
+//! ::pin_init::PinnedDrop::drop(pinned, token);
//! }
//! }
//! };
//!
//! ```rust,ignore
//! // `unsafe`, full path and the token parameter are added, everything else stays the same.
-//! unsafe impl ::kernel::init::PinnedDrop for Foo {
-//! fn drop(self: Pin<&mut Self>, _: ::kernel::init::__internal::OnlyCallFromDrop) {
+//! unsafe impl ::pin_init::PinnedDrop for Foo {
+//! fn drop(self: Pin<&mut Self>, _: ::pin_init::__internal::OnlyCallFromDrop) {
//! pr_info!("{self:p} is getting dropped.");
//! }
//! }
//! let initializer = {
//! struct __InitOk;
//! let data = unsafe {
-//! use ::kernel::init::__internal::HasPinData;
+//! use ::pin_init::__internal::HasPinData;
//! Foo::__pin_data()
//! };
-//! let init = ::kernel::init::__internal::PinData::make_closure::<
+//! let init = ::pin_init::__internal::PinData::make_closure::<
//! _,
//! __InitOk,
//! ::core::convert::Infallible,
//! unsafe { ::core::ptr::write(::core::addr_of_mut!((*slot).a), a) };
//! }
//! let __a_guard = unsafe {
-//! ::kernel::init::__internal::DropGuard::new(::core::addr_of_mut!((*slot).a))
+//! ::pin_init::__internal::DropGuard::new(::core::addr_of_mut!((*slot).a))
//! };
//! let init = Bar::new(36);
//! unsafe { data.b(::core::addr_of_mut!((*slot).b), b)? };
//! let __b_guard = unsafe {
-//! ::kernel::init::__internal::DropGuard::new(::core::addr_of_mut!((*slot).b))
+//! ::pin_init::__internal::DropGuard::new(::core::addr_of_mut!((*slot).b))
//! };
//! ::core::mem::forget(__b_guard);
//! ::core::mem::forget(__a_guard);
//! init(slot).map(|__InitOk| ())
//! };
//! let init = unsafe {
-//! ::kernel::init::pin_init_from_closure::<_, ::core::convert::Infallible>(init)
+//! ::pin_init::pin_init_from_closure::<_, ::core::convert::Infallible>(init)
//! };
//! init
//! };
//! ```
+#[cfg(kernel)]
pub use ::macros::paste;
+#[cfg(not(kernel))]
+pub use ::paste::paste;
/// Creates a `unsafe impl<...> PinnedDrop for $type` block.
///
unsafe $($impl_sig)* {
// Inherit all attributes and the type/ident tokens for the signature.
$(#[$($attr)*])*
- fn drop($($sig)*, _: $crate::init::__internal::OnlyCallFromDrop) {
+ fn drop($($sig)*, _: $crate::__internal::OnlyCallFromDrop) {
$($inner)*
}
}
// SAFETY: We have added the correct projection functions above to `__ThePinData` and
// we also use the least restrictive generics possible.
unsafe impl<$($impl_generics)*>
- $crate::init::__internal::HasPinData for $name<$($ty_generics)*>
+ $crate::__internal::HasPinData for $name<$($ty_generics)*>
where $($whr)*
{
type PinData = __ThePinData<$($ty_generics)*>;
// SAFETY: TODO.
unsafe impl<$($impl_generics)*>
- $crate::init::__internal::PinData for __ThePinData<$($ty_generics)*>
+ $crate::__internal::PinData for __ThePinData<$($ty_generics)*>
where $($whr)*
{
type Datee = $name<$($ty_generics)*>;
// `PinnedDrop` as the parameter to `#[pin_data]`.
#[expect(non_camel_case_types)]
trait UselessPinnedDropImpl_you_need_to_specify_PinnedDrop {}
- impl<T: $crate::init::PinnedDrop>
+ impl<T: $crate::PinnedDrop>
UselessPinnedDropImpl_you_need_to_specify_PinnedDrop for T {}
impl<$($impl_generics)*>
UselessPinnedDropImpl_you_need_to_specify_PinnedDrop for $name<$($ty_generics)*>
let pinned = unsafe { ::core::pin::Pin::new_unchecked(self) };
// SAFETY: Since this is a drop function, we can create this token to call the
// pinned destructor of this type.
- let token = unsafe { $crate::init::__internal::OnlyCallFromDrop::new() };
- $crate::init::PinnedDrop::drop(pinned, token);
+ let token = unsafe { $crate::__internal::OnlyCallFromDrop::new() };
+ $crate::PinnedDrop::drop(pinned, token);
}
}
};
$pvis unsafe fn $p_field<E>(
self,
slot: *mut $p_type,
- init: impl $crate::init::PinInit<$p_type, E>,
+ init: impl $crate::PinInit<$p_type, E>,
) -> ::core::result::Result<(), E> {
// SAFETY: TODO.
- unsafe { $crate::init::PinInit::__pinned_init(init, slot) }
+ unsafe { $crate::PinInit::__pinned_init(init, slot) }
}
)*
$(
$fvis unsafe fn $field<E>(
self,
slot: *mut $type,
- init: impl $crate::init::Init<$type, E>,
+ init: impl $crate::Init<$type, E>,
) -> ::core::result::Result<(), E> {
// SAFETY: TODO.
- unsafe { $crate::init::Init::__init(init, slot) }
+ unsafe { $crate::Init::__init(init, slot) }
}
)*
}
//
// SAFETY: TODO.
let data = unsafe {
- use $crate::init::__internal::$has_data;
+ use $crate::__internal::$has_data;
// Here we abuse `paste!` to retokenize `$t`. Declarative macros have some internal
// information that is associated to already parsed fragments, so a path fragment
// cannot be used in this position. Doing the retokenization results in valid rust
// code.
- $crate::init::macros::paste!($t::$get_data())
+ $crate::macros::paste!($t::$get_data())
};
// Ensure that `data` really is of type `$data` and help with type inference:
- let init = $crate::init::__internal::$data::make_closure::<_, __InitOk, $err>(
+ let init = $crate::__internal::$data::make_closure::<_, __InitOk, $err>(
data,
move |slot| {
{
// error when fields are missing (since they will be zeroed). We also have to
// check that the type actually implements `Zeroable`.
$({
- fn assert_zeroable<T: $crate::init::Zeroable>(_: *mut T) {}
+ fn assert_zeroable<T: $crate::Zeroable>(_: *mut T) {}
// Ensure that the struct is indeed `Zeroable`.
assert_zeroable(slot);
// SAFETY: The type implements `Zeroable` by the check above.
init(slot).map(|__InitOk| ())
};
// SAFETY: TODO.
- let init = unsafe { $crate::init::$construct_closure::<_, $err>(init) };
+ let init = unsafe { $crate::$construct_closure::<_, $err>(init) };
init
}};
(init_slot($($use_data:ident)?):
//
// We rely on macro hygiene to make it impossible for users to access this local variable.
// We use `paste!` to create new hygiene for `$field`.
- $crate::init::macros::paste! {
+ $crate::macros::paste! {
// SAFETY: We forget the guard later when initialization has succeeded.
let [< __ $field _guard >] = unsafe {
- $crate::init::__internal::DropGuard::new(::core::ptr::addr_of_mut!((*$slot).$field))
+ $crate::__internal::DropGuard::new(::core::ptr::addr_of_mut!((*$slot).$field))
};
$crate::__init_internal!(init_slot($use_data):
//
// SAFETY: `slot` is valid, because we are inside of an initializer closure, we
// return when an error/panic occurs.
- unsafe { $crate::init::Init::__init(init, ::core::ptr::addr_of_mut!((*$slot).$field))? };
+ unsafe { $crate::Init::__init(init, ::core::ptr::addr_of_mut!((*$slot).$field))? };
// Create the drop guard:
//
// We rely on macro hygiene to make it impossible for users to access this local variable.
// We use `paste!` to create new hygiene for `$field`.
- $crate::init::macros::paste! {
+ $crate::macros::paste! {
// SAFETY: We forget the guard later when initialization has succeeded.
let [< __ $field _guard >] = unsafe {
- $crate::init::__internal::DropGuard::new(::core::ptr::addr_of_mut!((*$slot).$field))
+ $crate::__internal::DropGuard::new(::core::ptr::addr_of_mut!((*$slot).$field))
};
$crate::__init_internal!(init_slot():
//
// We rely on macro hygiene to make it impossible for users to access this local variable.
// We use `paste!` to create new hygiene for `$field`.
- $crate::init::macros::paste! {
+ $crate::macros::paste! {
// SAFETY: We forget the guard later when initialization has succeeded.
let [< __ $field _guard >] = unsafe {
- $crate::init::__internal::DropGuard::new(::core::ptr::addr_of_mut!((*$slot).$field))
+ $crate::__internal::DropGuard::new(::core::ptr::addr_of_mut!((*$slot).$field))
};
$crate::__init_internal!(init_slot($($use_data)?):
// information that is associated to already parsed fragments, so a path fragment
// cannot be used in this position. Doing the retokenization results in valid rust
// code.
- $crate::init::macros::paste!(
+ $crate::macros::paste!(
::core::ptr::write($slot, $t {
$($acc)*
..zeroed
// information that is associated to already parsed fragments, so a path fragment
// cannot be used in this position. Doing the retokenization results in valid rust
// code.
- $crate::init::macros::paste!(
+ $crate::macros::paste!(
::core::ptr::write($slot, $t {
$($acc)*
});
) => {
// SAFETY: Every field type implements `Zeroable` and padding bytes may be zero.
#[automatically_derived]
- unsafe impl<$($impl_generics)*> $crate::init::Zeroable for $name<$($ty_generics)*>
+ unsafe impl<$($impl_generics)*> $crate::Zeroable for $name<$($ty_generics)*>
where
$($($whr)*)?
{}
const _: () = {
- fn assert_zeroable<T: ?::core::marker::Sized + $crate::init::Zeroable>() {}
+ fn assert_zeroable<T: ?::core::marker::Sized + $crate::Zeroable>() {}
fn ensure_zeroable<$($impl_generics)*>()
where $($($whr)*)?
{
append_crate(
"pin_init_internal",
- srctree / "rust" / "pin-init" / "internal" / "src" / "_lib.rs",
+ srctree / "rust" / "pin-init" / "internal" / "src" / "lib.rs",
[],
cfg=["kernel"],
is_proc_macro=True,
append_crate(
"pin_init",
- srctree / "rust" / "pin-init" / "src" / "_lib.rs",
+ srctree / "rust" / "pin-init" / "src" / "lib.rs",
["core", "pin_init_internal", "macros"],
cfg=["kernel"],
)
projects / thirdparty / linux.git / commitdiff
