| // Copyright Istio 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 reserveport |
| |
| import ( |
| "testing" |
| ) |
| |
| const ( |
| poolSize = 50 |
| ) |
| |
| // ReservedPort a port reserved by a PortManager |
| type ReservedPort interface { |
| // GetPort returns the bound port number. |
| GetPort() uint16 |
| // Close unbinds this port. |
| Close() error |
| CloseSilently() |
| } |
| |
| // PortManager is responsible for reserving ports for an application. |
| type PortManager interface { |
| // ReservePort reserves a new port. The lifecycle of the returned port is transferred to the caller. |
| ReservePort() (ReservedPort, error) |
| ReservePortOrFail(t *testing.T) ReservedPort |
| ReservePortNumber() (uint16, error) |
| ReservePortNumberOrFail(t *testing.T) uint16 |
| // Close shuts down this manager and frees any associated resources. |
| Close() error |
| CloseSilently() |
| } |
| |
| // NewPortManager allocates a new PortManager |
| func NewPortManager() (mgr PortManager, err error) { |
| return &managerImpl{}, nil |
| } |
| |
| // NewPortManagerOrFail calls NewPortManager and fails the test if unsuccessful. |
| func NewPortManagerOrFail(t *testing.T) PortManager { |
| t.Helper() |
| mgr, err := NewPortManager() |
| if err != nil { |
| t.Fatal(err) |
| } |
| return mgr |
| } |