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finished arena (lottes.c)

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Edward R. Gonzalez
2025-11-05 22:21:44 -05:00
parent 3bb46692e1
commit ac05262c8d
3 changed files with 143 additions and 99 deletions
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5
C/watl.v0.msvc.c
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@@ -1201,8 +1201,7 @@ Slice_Byte arena__grow(Arena* arena, Slice_Byte old_allocation, SSIZE requested_
{
SSIZE grow_amount = requested_size - old_allocation.len;
SSIZE aligned_grow = align_pow2(grow_amount, alignment ? alignment : MEMORY_ALIGNMENT_DEFAULT);
if (active->pos + aligned_grow <= active->backing->reserve)
{
if (active->pos + aligned_grow <= active->backing->reserve) {
Slice_Byte vresult = varena_push_array(active->backing, Byte, aligned_grow, .alignment = alignment);
if (vresult.ptr != nullptr) {
active->pos += aligned_grow;
@@ -1214,7 +1213,7 @@ Slice_Byte arena__grow(Arena* arena, Slice_Byte old_allocation, SSIZE requested_
Slice_Byte new_alloc = arena__push(arena, requested_size, 1, &(Opts_arena){.alignment = alignment});
if (new_alloc.ptr == nullptr) { return (Slice_Byte){0}; }
mem_copy(new_alloc.ptr, old_allocation.ptr, old_allocation.len);
mem_zero(new_alloc.ptr + old_allocation.len, (requested_size - old_allocation.len) * (SSIZE)should_zero);
mem_zero(new_alloc.ptr + old_allocation.len, (new_alloc.len - old_allocation.len) * (SSIZE)should_zero);
return new_alloc;
}
internal inline