[−][src]Trait std::os::fortanix_sgx::usercalls::alloc::UserSafe

pub unsafe trait UserSafe {
    fn align_of() -> usize;

    unsafe fn from_raw_sized_unchecked(ptr: *mut u8, size: usize) -> *mut Self;

    unsafe fn from_raw_sized(ptr: *mut u8, size: usize) -> NonNull<Self> { ... }

    unsafe fn check_ptr(ptr: *const Self) { ... }
}
🔬 This is a nightly-only experimental API. (sgx_platform #56975)

A type that can be represented in memory as one or more UserSafeSizeds.

Required methods

fn align_of() -> usize

🔬 This is a nightly-only experimental API. (sgx_platform #56975)

Equivalent to mem::align_of::<Self>.

unsafe fn from_raw_sized_unchecked(ptr: *mut u8, size: usize) -> *mut Self

🔬 This is a nightly-only experimental API. (sgx_platform #56975)

Construct a pointer to Self given a memory range in user space.

N.B., this takes a size, not a length!

Safety

The caller must ensure the memory range is in user memory, is the correct size and is correctly aligned and points to the right type.

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Provided methods

unsafe fn from_raw_sized(ptr: *mut u8, size: usize) -> NonNull<Self>

🔬 This is a nightly-only experimental API. (sgx_platform #56975)

Construct a pointer to Self given a memory range.

N.B., this takes a size, not a length!

Safety

The caller must ensure the memory range points to the correct type.

Panics

This function panics if:

  • the pointer is not aligned.
  • the pointer is null.
  • the pointed-to range does not fit in the address space.
  • the pointed-to range is not in user memory.

unsafe fn check_ptr(ptr: *const Self)

🔬 This is a nightly-only experimental API. (sgx_platform #56975)

Checks if a pointer may point to Self in user memory.

Safety

The caller must ensure the memory range points to the correct type and length (if this is a slice).

Panics

This function panics if:

  • the pointer is not aligned.
  • the pointer is null.
  • the pointed-to range is not in user memory.
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Implementors

impl<T: UserSafeSized> UserSafe for [T][src]

impl<T: UserSafeSized> UserSafe for T[src]

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