/
domain_1.2.14.go
139 lines (115 loc) · 3.36 KB
/
domain_1.2.14.go
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// +build libvirt.1.2.14
package libvirt
/*
#cgo LDFLAGS: -lvirt-qemu -lvirt
#include <libvirt/libvirt.h>
#include <libvirt/libvirt-qemu.h>
#include <libvirt/virterror.h>
#include <stdlib.h>
*/
import "C"
import (
"errors"
"reflect"
"unsafe"
)
type VirDomainIPAddress struct {
Type int
Addr string
Prefix uint
}
type VirDomainInterface struct {
Name string
Hwaddr string
Addrs []VirDomainIPAddress
}
func (d *VirDomain) ListAllInterfaceAddresses(src uint) ([]VirDomainInterface, error) {
var cList *C.virDomainInterfacePtr
numIfaces := int(C.virDomainInterfaceAddresses(d.ptr, (**C.virDomainInterfacePtr)(&cList), C.uint(src), 0))
if numIfaces == -1 {
return nil, GetLastError()
}
hdr := reflect.SliceHeader{
Data: uintptr(unsafe.Pointer(cList)),
Len: int(numIfaces),
Cap: int(numIfaces),
}
ifaces := make([]VirDomainInterface, numIfaces)
ifaceSlice := *(*[]C.virDomainInterfacePtr)(unsafe.Pointer(&hdr))
for i := 0; i < numIfaces; i++ {
ifaces[i].Name = C.GoString(ifaceSlice[i].name)
ifaces[i].Hwaddr = C.GoString(ifaceSlice[i].hwaddr)
numAddr := int(ifaceSlice[i].naddrs)
addrHdr := reflect.SliceHeader{
Data: uintptr(unsafe.Pointer(&ifaceSlice[i].addrs)),
Len: int(numAddr),
Cap: int(numAddr),
}
ifaces[i].Addrs = make([]VirDomainIPAddress, numAddr)
addrSlice := *(*[]C.virDomainIPAddressPtr)(unsafe.Pointer(&addrHdr))
for k := 0; k < numAddr; k++ {
ifaces[i].Addrs[k] = VirDomainIPAddress{}
ifaces[i].Addrs[k].Type = int(addrSlice[k]._type)
ifaces[i].Addrs[k].Addr = C.GoString(addrSlice[k].addr)
ifaces[i].Addrs[k].Prefix = uint(addrSlice[k].prefix)
}
C.virDomainInterfaceFree(ifaceSlice[i])
}
C.free(unsafe.Pointer(cList))
return ifaces, nil
}
func (dest *VirTypedParameters) loadToCPtr() (params C.virTypedParameterPtr, nParams C.int, err error) {
var maxParams C.int = 0
params = nil
for _, param := range *dest {
switch param.Name {
case VIR_DOMAIN_BLOCK_COPY_GRANULARITY:
value, ok := param.Value.(uint)
if !ok {
err = errors.New("Mismatched parameter value type")
return
}
cName := C.CString(param.Name)
defer C.free(unsafe.Pointer(cName))
result := C.virTypedParamsAddUInt(¶ms, &nParams, &maxParams, cName, C.uint(value))
if result == -1 {
err = GetLastError()
return
}
case VIR_DOMAIN_BLOCK_COPY_BANDWIDTH, VIR_DOMAIN_BLOCK_COPY_BUF_SIZE:
value, ok := param.Value.(uint64)
if !ok {
err = errors.New("Mismatched parameter value type")
return
}
cName := C.CString(param.Name)
defer C.free(unsafe.Pointer(cName))
result := C.virTypedParamsAddULLong(¶ms, &nParams, &maxParams, cName, C.ulonglong(value))
if result == -1 {
err = GetLastError()
return
}
default:
err = errors.New("Unknown parameter name: " + param.Name)
return
}
}
return
}
func (d *VirDomain) BlockCopy(disk string, destXML string, params VirTypedParameters, flags uint32) error {
cDisk := C.CString(disk)
defer C.free(unsafe.Pointer(cDisk))
cDestXML := C.CString(destXML)
defer C.free(unsafe.Pointer(cDestXML))
if cParams, cnParams, err := params.loadToCPtr(); err != nil {
C.virTypedParamsFree(cParams, cnParams)
return err
} else {
defer C.virTypedParamsFree(cParams, cnParams)
result := int(C.virDomainBlockCopy(d.ptr, cDisk, cDestXML, cParams, cnParams, C.uint(flags)))
if result == -1 {
return GetLastError()
}
}
return nil
}