Struct SecurePolicy 

pub struct SecurePolicy;

Zero-Sized Type (ZST) representing a secure allocation policy with memory poisoning and zero-initialization.

Trait Implementations

impl AllocPolicy for SecurePolicy

const ENABLE_POISONING: bool = true

If true, write poison bytes to memory on allocation and deallocation to detect heap corruption.

const ZERO_INITIALIZE: bool = true

If true, zero-initialize all memory allocations.

const RANDOMIZE_ALLOCATION: bool = true

If true, randomize the allocation order of blocks in a page.

const POLICY_NAME: &'static str = "secure"

Human-readable name for this policy. Zero-cost — inlined by the compiler.

const MITIGATION_FLAGS: u32

Combined bitmask of active mitigations for this policy.

const POISON_FREE_BYTE: u8 = 0xDE

Byte pattern to write into memory when it is freed.

const POISON_ALLOC_BYTE: u8 = 0xAD

Byte pattern to write into memory when it is allocated.

const ENABLE_FREE_LIST_ENCRYPTION: bool = false

If true, encrypt free list next pointers using the per-segment XOR key.

const DELAY_PAGE_WAKE: bool = false

If true, a full page does not become active until at least capacity / WAKE_DENOMINATOR blocks are freed from it.

const WAKE_DENOMINATOR: u16 = 4

Denominator for the page-wake hysteresis.

const SEGMENT_POOL_WARM_THRESHOLD: usize = 0

Minimum warm segments kept in the pool after a purge_lazy call.

const GWP_SAMPLE_RATE: u32 = 0

Probabilistic guard-page sampling rate (GWP-ASan hook). 0 disables. Inspired by snmalloc 0.7.2 gwp_asan.h.

const MAX_ALLOC_SIZE_LIMIT: usize = 0

Maximum allocation size this policy will serve without a panic/error.

const POLICY_FINGERPRINT: u64 = _

Compile-time configuration fingerprint.

impl Clone for SecurePolicy

fn clone(&self) -> SecurePolicy

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for SecurePolicy

impl Debug for SecurePolicy

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for SecurePolicy

fn default() -> SecurePolicy

Returns the “default value” for a type.

impl Eq for SecurePolicy

impl PartialEq for SecurePolicy

fn eq(&self, other: &SecurePolicy) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl PolicySlotSelection<CudaDeviceBackend> for SecurePolicy

fn with_allocator<R>( f: impl FnOnce(&mut ThreadAllocator<CudaDeviceBackend>) -> R, ) -> Option<R>

Runs f with access to the allocator cache selected for this policy.

unsafe fn with_allocator_unguarded<R>( f: impl FnOnce(&mut ThreadAllocator<CudaDeviceBackend>) -> R, ) -> Option<R>

Runs f with access to the selected policy cache without arming the re-entrancy gate.

fn get_allocator_ptr() -> *mut c_void

Returns the initialized allocator pointer for this policy’s TLS slot.

fn get_allocator_ptr_raw() -> *mut c_void

Returns the raw allocator pointer for this policy’s TLS slot without forcing lazy initialization.

impl PolicySlotSelection<CudaGddrBackend> for SecurePolicy

fn with_allocator<R>( f: impl FnOnce(&mut ThreadAllocator<CudaGddrBackend>) -> R, ) -> Option<R>

Runs f with access to the allocator cache selected for this policy.

unsafe fn with_allocator_unguarded<R>( f: impl FnOnce(&mut ThreadAllocator<CudaGddrBackend>) -> R, ) -> Option<R>

Runs f with access to the selected policy cache without arming the re-entrancy gate.

fn get_allocator_ptr() -> *mut c_void

Returns the initialized allocator pointer for this policy’s TLS slot.

fn get_allocator_ptr_raw() -> *mut c_void

Returns the raw allocator pointer for this policy’s TLS slot without forcing lazy initialization.

impl PolicySlotSelection<CudaHbmBackend> for SecurePolicy

fn with_allocator<R>( f: impl FnOnce(&mut ThreadAllocator<CudaHbmBackend>) -> R, ) -> Option<R>

Runs f with access to the allocator cache selected for this policy.

unsafe fn with_allocator_unguarded<R>( f: impl FnOnce(&mut ThreadAllocator<CudaHbmBackend>) -> R, ) -> Option<R>

Runs f with access to the selected policy cache without arming the re-entrancy gate.

fn get_allocator_ptr() -> *mut c_void

Returns the initialized allocator pointer for this policy’s TLS slot.

fn get_allocator_ptr_raw() -> *mut c_void

Returns the raw allocator pointer for this policy’s TLS slot without forcing lazy initialization.

impl PolicySlotSelection<CudaHostPinnedBackend> for SecurePolicy

fn with_allocator<R>( f: impl FnOnce(&mut ThreadAllocator<CudaHostPinnedBackend>) -> R, ) -> Option<R>

Runs f with access to the allocator cache selected for this policy.

unsafe fn with_allocator_unguarded<R>( f: impl FnOnce(&mut ThreadAllocator<CudaHostPinnedBackend>) -> R, ) -> Option<R>

Runs f with access to the selected policy cache without arming the re-entrancy gate.

fn get_allocator_ptr() -> *mut c_void

Returns the initialized allocator pointer for this policy’s TLS slot.

fn get_allocator_ptr_raw() -> *mut c_void

Returns the raw allocator pointer for this policy’s TLS slot without forcing lazy initialization.

impl PolicySlotSelection<CudaUnifiedBackend> for SecurePolicy

fn with_allocator<R>( f: impl FnOnce(&mut ThreadAllocator<CudaUnifiedBackend>) -> R, ) -> Option<R>

Runs f with access to the allocator cache selected for this policy.

unsafe fn with_allocator_unguarded<R>( f: impl FnOnce(&mut ThreadAllocator<CudaUnifiedBackend>) -> R, ) -> Option<R>

Runs f with access to the selected policy cache without arming the re-entrancy gate.

fn get_allocator_ptr() -> *mut c_void

Returns the initialized allocator pointer for this policy’s TLS slot.

fn get_allocator_ptr_raw() -> *mut c_void

Returns the raw allocator pointer for this policy’s TLS slot without forcing lazy initialization.

impl PolicySlotSelection<MemoryBackendWrapper> for SecurePolicy

fn with_allocator<R>( f: impl FnOnce(&mut ThreadAllocator<MemoryBackendWrapper>) -> R, ) -> Option<R>

Runs f with access to the allocator cache selected for this policy.

unsafe fn with_allocator_unguarded<R>( f: impl FnOnce(&mut ThreadAllocator<MemoryBackendWrapper>) -> R, ) -> Option<R>

Runs f with access to the selected policy cache without arming the re-entrancy gate.

fn get_allocator_ptr() -> *mut c_void

Returns the initialized allocator pointer for this policy’s TLS slot.

fn get_allocator_ptr_raw() -> *mut c_void

Returns the raw allocator pointer for this policy’s TLS slot without forcing lazy initialization.

impl StructuralPartialEq for SecurePolicy