Struct context_coroutine::CoroutineMemorySource

pub struct CoroutineMemorySource<GTACSA: 'static + GlobalThreadAndCoroutineSwitchableAllocator, CoroutineLocalAllocatorConstructor: Fn(RcMemorySource<ArenaMemorySource<MemoryMapSource>>, NonZeroUsize) -> Result<GTACSA::CoroutineLocalAllocator, AllocErr>> { /* fields omitted */ }

This design does not use a guard page (via mprotect(PROT_NONE)) to separate the heap and stack.

Guard pages need to be at least 1Mb to be effective (see discussion in https://www.openwall.com/lists/oss-security/2017/06/19/1), which is probably too large for coroutines if using a design that ensures all virtual memory is physically backed.

Methods

impl<GTACSA: GlobalThreadAndCoroutineSwitchableAllocator, CoroutineLocalAllocatorConstructor: Fn(RcMemorySource<ArenaMemorySource<MemoryMapSource>>, NonZeroUsize) -> Result<GTACSA::CoroutineLocalAllocator, AllocErr>> CoroutineMemorySource<GTACSA, CoroutineLocalAllocatorConstructor>

pub fn new(
    global_allocator: &'static GTACSA,
    coroutine_local_allocator_constructor: CoroutineLocalAllocatorConstructor,
    memory_map_source: MemoryMapSource,
    memory_source_size: NonZeroUsize,
    heap_size: NonZeroUsize,
    stack_size: NonZeroUsize
) -> Result<Self, AllocErr>

Creates a new instance.

Trait Implementations

impl<GTACSA: Debug + 'static + GlobalThreadAndCoroutineSwitchableAllocator, CoroutineLocalAllocatorConstructor: Debug + Fn(RcMemorySource<ArenaMemorySource<MemoryMapSource>>, NonZeroUsize) -> Result<GTACSA::CoroutineLocalAllocator, AllocErr>> Debug for CoroutineMemorySource<GTACSA, CoroutineLocalAllocatorConstructor>

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.