74 lines
1.8 KiB
C++
74 lines
1.8 KiB
C++
#include "master.hpp"
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namespace factor
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{
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byte_array *factor_vm::allot_byte_array(cell size)
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{
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byte_array *array = allot_uninitialized_array<byte_array>(size);
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memset(array + 1,0,size);
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return array;
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}
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VM_C_API cell allot_byte_array(cell size, factor_vm *parent)
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{
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return tag<byte_array>(parent->allot_byte_array(size));
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}
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void factor_vm::primitive_byte_array()
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{
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cell size = unbox_array_size();
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ctx->push(tag<byte_array>(allot_byte_array(size)));
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}
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void factor_vm::primitive_uninitialized_byte_array()
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{
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cell size = unbox_array_size();
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ctx->push(tag<byte_array>(allot_uninitialized_array<byte_array>(size)));
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}
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void factor_vm::primitive_resize_byte_array()
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{
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data_root<byte_array> array(ctx->pop(),this);
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array.untag_check(this);
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cell capacity = unbox_array_size();
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ctx->push(tag<byte_array>(reallot_array(array.untagged(),capacity)));
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}
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void growable_byte_array::grow_bytes(cell len)
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{
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count += len;
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if(count >= array_capacity(elements.untagged()))
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elements = elements.parent->reallot_array(elements.untagged(),count * 2);
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}
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void growable_byte_array::append_bytes(void *elts, cell len)
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{
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cell old_count = count;
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grow_bytes(len);
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memcpy(&elements->data<u8>()[old_count],elts,len);
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}
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void growable_byte_array::append_byte_array(cell byte_array_)
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{
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data_root<byte_array> byte_array(byte_array_,elements.parent);
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cell len = array_capacity(byte_array.untagged());
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cell new_size = count + len;
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factor_vm *parent = elements.parent;
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if(new_size >= array_capacity(elements.untagged()))
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elements = parent->reallot_array(elements.untagged(),new_size * 2);
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memcpy(&elements->data<u8>()[count],byte_array->data<u8>(),len);
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count += len;
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}
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void growable_byte_array::trim()
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{
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factor_vm *parent = elements.parent;
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elements = parent->reallot_array(elements.untagged(),count);
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}
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}
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