func (d *VirDomain) GetVcpusCpuMap(maxInfo int, maxCPUs uint32) ([]VirVcpuInfo, error) {
ptr := make([]C.virVcpuInfo, maxInfo)
mapLen := virCpuMapLen(maxCPUs) // Length of CPUs bitmask in bytes
bufSize := int(mapLen) * int(maxInfo) // Length of the array of 'maxinfo' bitmasks
cpuMaps := (*C.uchar)(C.malloc(C.size_t(bufSize))) // Array itself
defer C.free(unsafe.Pointer(cpuMaps))
result := C.virDomainGetVcpus(
d.ptr, (C.virVcpuInfoPtr)(unsafe.Pointer(&ptr[0])),
C.int(maxInfo), cpuMaps, mapLen)
if result == -1 {
return nil, GetLastError()
}
// Convert to golang []byte for easier handling
bytesCpuMaps := C.GoBytes(unsafe.Pointer(cpuMaps), C.int(bufSize))
out := make([]VirVcpuInfo, 0)
for i := 0; i < int(result); i++ {
out = append(out, VirVcpuInfo{
Number: uint32(ptr[i].number),
State: int32(ptr[i].state),
CpuTime: uint64(ptr[i].cpuTime),
Cpu: int32(ptr[i].cpu),
CpuMap: extractCpuMask(bytesCpuMaps, i, int(mapLen)),
})
}
return out, nil
}
func (d *VirDomain) GetVcpus(maxInfo int32) ([]VirVcpuInfo, error) {
ptr := make([]C.virVcpuInfo, maxInfo)
result := C.virDomainGetVcpus(
d.ptr, (C.virVcpuInfoPtr)(unsafe.Pointer(&ptr[0])),
C.int(maxInfo), nil, C.int(0))
if result == -1 {
return []VirVcpuInfo{}, GetLastError()
}
out := make([]VirVcpuInfo, 0)
for i := 0; i < int(result); i++ {
out = append(out, VirVcpuInfo{
Number: uint32(ptr[i].number),
State: int32(ptr[i].state),
CpuTime: uint64(ptr[i].cpuTime),
Cpu: int32(ptr[i].cpu),
})
}
return out, nil
}