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// Copyright 2016 The go-qemu Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package hypervisor
import (
"fmt"
"time"
"github.com/digitalocean/go-qemu/qmp"
)
var _ Driver = &SocketDriver{}
// A SocketDriver is a QEMU QMP monitor driver which communicates directly
// with a QEMU monitor socket.
type SocketDriver struct {
addrs []SocketAddress
}
// A SocketAddress is a QEMU QMP monitor socket address used to configure
// a SocketDriver.
type SocketAddress struct {
// Network should be one of "unix", "tcp", etc.
Network string
// Address should be a host:port address or UNIX socket filepath,
// such "8.8.8.8:4444" or "/var/lib/qemu/example.socket".
Address string
// Timeout specifies how long the monitor socket will attempt to be
// reached before timing out.
Timeout time.Duration
}
// NewMonitor creates a new qmp.Monitor using a QEMU monitor socket at
// the specified address.
func (d *SocketDriver) NewMonitor(addr string) (qmp.Monitor, error) {
for _, a := range d.addrs {
if a.Address == addr {
return qmp.NewSocketMonitor(
a.Network,
a.Address,
a.Timeout,
)
}
}
return nil, fmt.Errorf("address not known to SocketDriver: %q", addr)
}
// DomainNames retrieves all hypervisor domain names known to the SocketDriver.
func (d *SocketDriver) DomainNames() ([]string, error) {
names := make([]string, 0, len(d.addrs))
for _, a := range d.addrs {
names = append(names, a.Address)
}
return names, nil
}
// NewSocketDriver configures a SocketDriver using one or more SocketAddress
// structures for configuration.
func NewSocketDriver(addrs []SocketAddress) *SocketDriver {
return &SocketDriver{
addrs: addrs,
}
}
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