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arena: fix Paging commit, improve MakeSlice

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This commit is contained in:
Judah Caruso 2026-01-31 15:07:01 -07:00
parent 9807636359
commit 0671d04bb3
2 changed files with 5 additions and 1 deletions
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4
arena/arena.go
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@ -29,6 +29,10 @@ func MakeSlice[T any](arena Arena, len, cap int) []T {
panic(err) panic(err)
} }
if len == -1 {
len = cap
}
return unsafe.Slice((*T)(ptr), cap)[:len] return unsafe.Slice((*T)(ptr), cap)[:len]
} }

2
arena/arenas.go
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@ -211,7 +211,7 @@ func Paged(page_size, total_reserved_in_bytes uintptr) Arena {
required := offset + aligned required := offset + aligned
to_commit := mem.AlignForward(required, page_size) to_commit := mem.AlignForward(required, page_size)
if err := mem.Commit(base[committed:to_commit-committed], mem.AccessRead|mem.AccessWrite); err != nil { if err := mem.Commit(base[committed:to_commit], mem.AccessRead|mem.AccessWrite); err != nil {
return nil, fmt.Errorf("paged: failed to commit memory - %w", err) return nil, fmt.Errorf("paged: failed to commit memory - %w", err)
} }