MmapAllocator

Allocator (currently defined only for Posix and Windows) using $(LINK2 https://en.wikipedia.org/wiki/Mmap, mmap) and $(LUCKY munmap) directly (or their Windows equivalents). There is no additional structure: each call to allocate(s) issues a call to mmap(null, s, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0), and each call to deallocate(b) issues munmap(b.ptr, b.length). So MmapAllocator is usually intended for allocating large chunks to be managed by fine-granular allocators.

Members

Functions

allocate
void[] allocate(size_t bytes)

Allocator API.

allocate
void[] allocate(size_t bytes)
deallocate
bool deallocate(void[] b)
bool deallocate(void[] b)

Allocator API.

Static variables

instance
MmapAllocator instance;

The one shared instance.

Variables

alignment
enum size_t alignment;

Alignment is page-size and hardcoded to 4096 (even though on certain systems it could be larger).

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