153 lines
4.5 KiB
Go
153 lines
4.5 KiB
Go
/*
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* This file is part of the libvirt-go-module project
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* Copyright (c) 2013 Alex Zorin
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* Copyright (C) 2016 Red Hat, Inc.
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*
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*/
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package libvirt
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import (
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"fmt"
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"unsafe"
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)
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/*
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#cgo !libvirt_dlopen pkg-config: libvirt
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#cgo libvirt_dlopen LDFLAGS: -ldl
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#cgo libvirt_dlopen CFLAGS: -DLIBVIRT_DLOPEN
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#include "node_device_events_helper.h"
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*/
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import "C"
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type NodeDeviceEventGenericCallback func(c *Connect, d *NodeDevice)
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type NodeDeviceEventLifecycle struct {
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Event NodeDeviceEventLifecycleType
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// TODO: we can make Detail typesafe somehow ?
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Detail int
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}
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type NodeDeviceEventLifecycleCallback func(c *Connect, n *NodeDevice, event *NodeDeviceEventLifecycle)
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//export nodeDeviceEventLifecycleCallback
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func nodeDeviceEventLifecycleCallback(c C.virConnectPtr, s C.virNodeDevicePtr,
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event int, detail int,
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goCallbackId int) {
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node_device := &NodeDevice{ptr: s}
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connection := &Connect{ptr: c}
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eventDetails := &NodeDeviceEventLifecycle{
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Event: NodeDeviceEventLifecycleType(event),
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Detail: detail,
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}
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callbackFunc := getCallbackId(goCallbackId)
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callback, ok := callbackFunc.(NodeDeviceEventLifecycleCallback)
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if !ok {
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panic("Inappropriate callback type called")
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}
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callback(connection, node_device, eventDetails)
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}
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//export nodeDeviceEventGenericCallback
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func nodeDeviceEventGenericCallback(c C.virConnectPtr, d C.virNodeDevicePtr,
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goCallbackId int) {
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node_device := &NodeDevice{ptr: d}
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connection := &Connect{ptr: c}
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callbackFunc := getCallbackId(goCallbackId)
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callback, ok := callbackFunc.(NodeDeviceEventGenericCallback)
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if !ok {
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panic("Inappropriate callback type called")
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}
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callback(connection, node_device)
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}
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func (c *Connect) NodeDeviceEventLifecycleRegister(device *NodeDevice, callback NodeDeviceEventLifecycleCallback) (int, error) {
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goCallBackId := registerCallbackId(callback)
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callbackPtr := unsafe.Pointer(C.nodeDeviceEventLifecycleCallbackHelper)
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var cdevice C.virNodeDevicePtr
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if device != nil {
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cdevice = device.ptr
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}
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var err C.virError
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ret := C.virConnectNodeDeviceEventRegisterAnyHelper(c.ptr, cdevice,
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C.VIR_NODE_DEVICE_EVENT_ID_LIFECYCLE,
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C.virConnectNodeDeviceEventGenericCallback(callbackPtr),
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C.long(goCallBackId), &err)
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if ret == -1 {
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freeCallbackId(goCallBackId)
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return 0, makeError(&err)
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}
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return int(ret), nil
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}
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func (c *Connect) NodeDeviceEventUpdateRegister(device *NodeDevice, callback NodeDeviceEventGenericCallback) (int, error) {
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goCallBackId := registerCallbackId(callback)
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callbackPtr := unsafe.Pointer(C.nodeDeviceEventGenericCallbackHelper)
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var cdevice C.virNodeDevicePtr
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if device != nil {
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cdevice = device.ptr
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}
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var err C.virError
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ret := C.virConnectNodeDeviceEventRegisterAnyHelper(c.ptr, cdevice,
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C.VIR_NODE_DEVICE_EVENT_ID_UPDATE,
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C.virConnectNodeDeviceEventGenericCallback(callbackPtr),
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C.long(goCallBackId), &err)
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if ret == -1 {
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freeCallbackId(goCallBackId)
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return 0, makeError(&err)
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}
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return int(ret), nil
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}
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func (c *Connect) NodeDeviceEventDeregister(callbackId int) error {
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// Deregister the callback
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var err C.virError
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ret := int(C.virConnectNodeDeviceEventDeregisterAnyWrapper(c.ptr, C.int(callbackId), &err))
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if ret < 0 {
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return makeError(&err)
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}
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return nil
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}
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func (e NodeDeviceEventLifecycle) String() string {
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var event string
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switch e.Event {
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case NODE_DEVICE_EVENT_CREATED:
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event = "created"
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case NODE_DEVICE_EVENT_DELETED:
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event = "deleted"
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default:
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event = "unknown"
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}
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return fmt.Sprintf("NodeDevice event=%q", event)
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}
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