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31 lines
820 B
Go
31 lines
820 B
Go
// Package mmap provides memory mapped related utilities.
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package mmap
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import "os"
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// PageSize is the minimum allocation size. Allocations will use at
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// least this size and are likely to be multiplied up to a multiple of
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// this size.
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var PageSize = os.Getpagesize()
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// MustAlloc allocates size bytes and returns a slice containing them. If
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// the allocation fails it will panic. This is best used for
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// allocations which are a multiple of the PageSize.
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func MustAlloc(size int) []byte {
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mem, err := Alloc(size)
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if err != nil {
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panic(err)
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}
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return mem
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}
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// MustFree frees buffers allocated by Alloc. Note it should be passed
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// the same slice (not a derived slice) that Alloc returned. If the
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// free fails it will panic.
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func MustFree(mem []byte) {
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err := Free(mem)
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if err != nil {
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panic(err)
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}
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}
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