32 lines
520 B
Go
32 lines
520 B
Go
//go:build linux
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// +build linux
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package interfaces
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import (
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"syscall"
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"time"
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"unsafe"
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)
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func platformGetRTT(fd uintptr) time.Duration {
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var info syscall.TCPInfo
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size := uint32(syscall.SizeofTCPInfo)
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_, _, err := syscall.Syscall6(
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syscall.SYS_GETSOCKOPT,
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fd,
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syscall.SOL_TCP,
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syscall.TCP_INFO,
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uintptr(unsafe.Pointer(&info)),
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uintptr(unsafe.Pointer(&size)),
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0,
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)
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if err != 0 {
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return 0
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}
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// RTT is in microseconds, convert to Duration
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return time.Duration(info.Rtt) * time.Microsecond
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} |