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remap

SmpAllocator.remap

fn remap(context: *anyopaque, memory: []u8, alignment: Alignment, new_len: usize, ra: usize) ?[*]u8

File

lib/std/heap/SmpAllocator.zig:188

Code

fn remap(context: *anyopaque, memory: []u8, alignment: Alignment, new_len: usize, ra: usize) ?[*]u8 {
    _ = context;
    _ = ra;
    const class = sizeClassIndex(memory.len, alignment);
    const new_class = sizeClassIndex(new_len, alignment);
    if (class >= size_class_count) {
        if (new_class < size_class_count) return null;
        return PageAllocator.realloc(memory, alignment, new_len, true);
    }
    return if (new_class == class) memory.ptr else null;
}