98 lines
2.4 KiB
Go
98 lines
2.4 KiB
Go
//go:build darwin
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package fdbased
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import (
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"reflect"
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"github.com/sagernet/gvisor/pkg/sync"
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"github.com/sagernet/gvisor/pkg/sync/locking"
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)
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// RWMutex is sync.RWMutex with the correctness validator.
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type endpointRWMutex struct {
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mu sync.RWMutex
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}
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// lockNames is a list of user-friendly lock names.
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// Populated in init.
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var endpointlockNames []string
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// lockNameIndex is used as an index passed to NestedLock and NestedUnlock,
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// referring to an index within lockNames.
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// Values are specified using the "consts" field of go_template_instance.
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type endpointlockNameIndex int
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// DO NOT REMOVE: The following function automatically replaced with lock index constants.
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// LOCK_NAME_INDEX_CONSTANTS
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const ()
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// Lock locks m.
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// +checklocksignore
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func (m *endpointRWMutex) Lock() {
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locking.AddGLock(endpointprefixIndex, -1)
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m.mu.Lock()
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}
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// NestedLock locks m knowing that another lock of the same type is held.
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// +checklocksignore
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func (m *endpointRWMutex) NestedLock(i endpointlockNameIndex) {
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locking.AddGLock(endpointprefixIndex, int(i))
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m.mu.Lock()
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}
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// Unlock unlocks m.
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// +checklocksignore
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func (m *endpointRWMutex) Unlock() {
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m.mu.Unlock()
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locking.DelGLock(endpointprefixIndex, -1)
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}
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// NestedUnlock unlocks m knowing that another lock of the same type is held.
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// +checklocksignore
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func (m *endpointRWMutex) NestedUnlock(i endpointlockNameIndex) {
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m.mu.Unlock()
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locking.DelGLock(endpointprefixIndex, int(i))
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}
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// RLock locks m for reading.
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// +checklocksignore
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func (m *endpointRWMutex) RLock() {
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locking.AddGLock(endpointprefixIndex, -1)
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m.mu.RLock()
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}
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// RUnlock undoes a single RLock call.
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// +checklocksignore
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func (m *endpointRWMutex) RUnlock() {
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m.mu.RUnlock()
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locking.DelGLock(endpointprefixIndex, -1)
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}
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// RLockBypass locks m for reading without executing the validator.
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// +checklocksignore
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func (m *endpointRWMutex) RLockBypass() {
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m.mu.RLock()
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}
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// RUnlockBypass undoes a single RLockBypass call.
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// +checklocksignore
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func (m *endpointRWMutex) RUnlockBypass() {
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m.mu.RUnlock()
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}
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// DowngradeLock atomically unlocks rw for writing and locks it for reading.
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// +checklocksignore
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func (m *endpointRWMutex) DowngradeLock() {
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m.mu.DowngradeLock()
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}
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var endpointprefixIndex *locking.MutexClass
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// DO NOT REMOVE: The following function is automatically replaced.
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func endpointinitLockNames() {}
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func init() {
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endpointinitLockNames()
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endpointprefixIndex = locking.NewMutexClass(reflect.TypeFor[endpointRWMutex](), endpointlockNames)
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}
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