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31 lines
413 B
Go
31 lines
413 B
Go
package arena
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type Arena struct {
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buf []byte
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offset int
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}
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func NewArena(size int) *Arena {
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a := new(Arena)
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a.buf = make([]byte, size, size)
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a.offset = 0
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return a
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}
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func (a *Arena) Make(size int) []byte {
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if len(a.buf) < size || len(a.buf)-a.offset < size {
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return make([]byte, size)
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}
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b := a.buf[a.offset : size+a.offset]
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a.offset += size
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return b
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}
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func (a *Arena) Reset() {
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a.offset = 0
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}
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