podman

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//go:build freebsd
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package rctl
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import (
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	"bytes"
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	"fmt"
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	"strconv"
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	"strings"
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	"syscall"
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	"unsafe"
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	"github.com/sirupsen/logrus"
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)
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func GetRacct(filter string) (map[string]uint64, error) {
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	bp, err := syscall.ByteSliceFromString(filter)
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	if err != nil {
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		return nil, err
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	}
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	var buf [1024]byte
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	_, _, errno := syscall.Syscall6(syscall.SYS_RCTL_GET_RACCT,
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		uintptr(unsafe.Pointer(&bp[0])),
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		uintptr(len(bp)),
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		uintptr(unsafe.Pointer(&buf[0])),
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		uintptr(len(buf)), 0, 0)
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	if errno != 0 {
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		return nil, fmt.Errorf("error calling rctl_get_racct with filter %s: %v", errno)
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	}
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	len := bytes.IndexByte(buf[:], byte(0))
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	entries := strings.Split(string(buf[:len]), ",")
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	res := make(map[string]uint64)
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	for _, entry := range entries {
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		key, valstr, _ := strings.Cut(entry, "=")
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		val, err := strconv.ParseUint(valstr, 10, 0)
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		if err != nil {
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			logrus.Warnf("unexpected rctl entry, ignoring: %s", entry)
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		}
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		res[key] = val
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	}
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	return res, nil
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}
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