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Pat Whittingslow
f9748da94f
* pcap: reuse Frame memory * slog: reduce heap allocations of addresses; also prevent heap alloc of dhcp options in pcap * dns: heapless improvement; add StackAsync buffer for more heapless operation; start thinking of errors * reuse function for reclaiming frames among all protocols for lower memory usage * remove extraneous code
23 lines
614 B
Go
23 lines
614 B
Go
package internal
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import (
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"encoding/binary"
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"log/slog"
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)
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// SlogAddr4 returns a slog.Attr for a 4-byte IPv4 address
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// packed into a uint64 without allocating a string.
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func SlogAddr4(key string, addr *[4]byte) slog.Attr {
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u64Addr := uint64(binary.BigEndian.Uint32(addr[:]))
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return slog.Uint64(key, u64Addr)
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}
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// SlogAddr6 returns a slog.Attr for a 6-byte hardware (MAC) address
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// packed into a uint64 without allocating a string.
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func SlogAddr6(key string, addr *[6]byte) slog.Attr {
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var buf [8]byte
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copy(buf[2:], addr[:])
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u64Addr := binary.BigEndian.Uint64(buf[:])
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return slog.Uint64(key, u64Addr)
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}
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