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40 lines
920 B
Go
40 lines
920 B
Go
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", filter, errno)
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}
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len := bytes.IndexByte(buf[:], byte(0))
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res := make(map[string]uint64)
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for entry := range strings.SplitSeq(string(buf[:len]), ",") {
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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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