118 lines
2.7 KiB
Go
118 lines
2.7 KiB
Go
// Copyright 2020 The gVisor 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 test
|
|
|
|
import (
|
|
"sync"
|
|
)
|
|
|
|
type testMethods struct {
|
|
mu sync.Mutex
|
|
|
|
// +checklocks:mu
|
|
guardedField int
|
|
}
|
|
|
|
func (t *testMethods) methodValid() {
|
|
t.mu.Lock()
|
|
t.guardedField = 1
|
|
t.mu.Unlock()
|
|
}
|
|
|
|
func (t *testMethods) methodInvalid() {
|
|
t.guardedField = 2 // +checklocksfail
|
|
}
|
|
|
|
// +checklocks:t.mu
|
|
func (t *testMethods) MethodLocked(a, b, c int) {
|
|
t.guardedField = 3
|
|
}
|
|
|
|
// +checklocksignore
|
|
func (t *testMethods) methodIgnore() {
|
|
t.guardedField = 2
|
|
}
|
|
|
|
func testMethodCallsValid(tc *testMethods) {
|
|
tc.methodValid()
|
|
}
|
|
|
|
func testMethodCallsValidPreconditions(tc *testMethods) {
|
|
tc.mu.Lock()
|
|
tc.MethodLocked(1, 2, 3)
|
|
tc.mu.Unlock()
|
|
}
|
|
|
|
func testMethodCallsInvalid(tc *testMethods) {
|
|
tc.MethodLocked(4, 5, 6) // +checklocksfail
|
|
}
|
|
|
|
func testMultipleParameters(tc1, tc2, tc3 *testMethods) {
|
|
tc1.mu.Lock()
|
|
tc1.guardedField = 1
|
|
tc2.guardedField = 2 // +checklocksfail
|
|
tc3.guardedField = 3 // +checklocksfail
|
|
tc1.mu.Unlock()
|
|
}
|
|
|
|
type testMethodsWithParameters struct {
|
|
mu sync.Mutex
|
|
|
|
// +checklocks:mu
|
|
guardedField int
|
|
}
|
|
|
|
type ptrToTestMethodsWithParameters *testMethodsWithParameters
|
|
|
|
// +checklocks:t.mu
|
|
// +checklocks:a.mu
|
|
func (t *testMethodsWithParameters) methodLockedWithParameters(a *testMethodsWithParameters, b *testMethodsWithParameters) {
|
|
t.guardedField = a.guardedField
|
|
b.guardedField = a.guardedField // +checklocksfail
|
|
}
|
|
|
|
// +checklocks:t.mu
|
|
// +checklocks:a.mu
|
|
// +checklocks:b.mu
|
|
func (t *testMethodsWithParameters) methodLockedWithPtrType(a *testMethodsWithParameters, b ptrToTestMethodsWithParameters) {
|
|
t.guardedField = a.guardedField
|
|
b.guardedField = a.guardedField
|
|
}
|
|
|
|
// +checklocks:a.mu
|
|
func standaloneFunctionWithGuard(a *testMethodsWithParameters) {
|
|
a.guardedField = 1
|
|
a.mu.Unlock()
|
|
a.guardedField = 1 // +checklocksfail
|
|
}
|
|
|
|
type testMethodsWithEmbedded struct {
|
|
mu sync.Mutex
|
|
|
|
// +checklocks:mu
|
|
guardedField int
|
|
p *testMethodsWithParameters
|
|
}
|
|
|
|
// +checklocks:t.mu
|
|
func (t *testMethodsWithEmbedded) DoLocked(a, b *testMethodsWithParameters) {
|
|
t.guardedField = 1
|
|
a.mu.Lock()
|
|
b.mu.Lock()
|
|
t.p.methodLockedWithParameters(a, b) // +checklocksfail
|
|
a.mu.Unlock()
|
|
b.mu.Unlock()
|
|
}
|