chore: deps and vendor

vendor/google.golang.org/protobuf/internal/impl/bitmap_race.go

@@ -0,0 +1,126 @@
+// Copyright 2024 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build race
+
+package impl
+
+// When running under race detector, we add a presence map of bytes, that we can access
+// in the hook functions so that we trigger the race detection whenever we have concurrent
+// Read-Writes or Write-Writes. The race detector does not otherwise detect invalid concurrent
+// access to lazy fields as all updates of bitmaps and pointers are done using atomic operations.
+type RaceDetectHookData struct {
+	shadowPresence *[]byte
+}
+
+// Hooks for presence bitmap operations that allocate, read and write the shadowPresence
+// using non-atomic operations.
+func (data *RaceDetectHookData) raceDetectHookAlloc(size presenceSize) {
+	sp := make([]byte, size)
+	atomicStoreShadowPresence(&data.shadowPresence, &sp)
+}
+
+func (p presence) raceDetectHookPresent(num uint32) {
+	data := p.toRaceDetectData()
+	if data == nil {
+		return
+	}
+	sp := atomicLoadShadowPresence(&data.shadowPresence)
+	if sp != nil {
+		_ = (*sp)[num]
+	}
+}
+
+func (p presence) raceDetectHookSetPresent(num uint32, size presenceSize) {
+	data := p.toRaceDetectData()
+	if data == nil {
+		return
+	}
+	sp := atomicLoadShadowPresence(&data.shadowPresence)
+	if sp == nil {
+		data.raceDetectHookAlloc(size)
+		sp = atomicLoadShadowPresence(&data.shadowPresence)
+	}
+	(*sp)[num] = 1
+}
+
+func (p presence) raceDetectHookClearPresent(num uint32) {
+	data := p.toRaceDetectData()
+	if data == nil {
+		return
+	}
+	sp := atomicLoadShadowPresence(&data.shadowPresence)
+	if sp != nil {
+		(*sp)[num] = 0
+
+	}
+}
+
+// raceDetectHookAllocAndCopy allocates a new shadowPresence slice at lazy and copies
+// shadowPresence bytes from src to lazy.
+func (p presence) raceDetectHookAllocAndCopy(q presence) {
+	sData := q.toRaceDetectData()
+	dData := p.toRaceDetectData()
+	if sData == nil {
+		return
+	}
+	srcSp := atomicLoadShadowPresence(&sData.shadowPresence)
+	if srcSp == nil {
+		atomicStoreShadowPresence(&dData.shadowPresence, nil)
+		return
+	}
+	n := len(*srcSp)
+	dSlice := make([]byte, n)
+	atomicStoreShadowPresence(&dData.shadowPresence, &dSlice)
+	for i := 0; i < n; i++ {
+		dSlice[i] = (*srcSp)[i]
+	}
+}
+
+// raceDetectHookPresent is called by the generated file interface
+// (*proto.internalFuncs) Present to optionally read an unprotected
+// shadow bitmap when race detection is enabled. In regular code it is
+// a noop.
+func raceDetectHookPresent(field *uint32, num uint32) {
+	data := findPointerToRaceDetectData(field, num)
+	if data == nil {
+		return
+	}
+	sp := atomicLoadShadowPresence(&data.shadowPresence)
+	if sp != nil {
+		_ = (*sp)[num]
+	}
+}
+
+// raceDetectHookSetPresent is called by the generated file interface
+// (*proto.internalFuncs) SetPresent to optionally write an unprotected
+// shadow bitmap when race detection is enabled. In regular code it is
+// a noop.
+func raceDetectHookSetPresent(field *uint32, num uint32, size presenceSize) {
+	data := findPointerToRaceDetectData(field, num)
+	if data == nil {
+		return
+	}
+	sp := atomicLoadShadowPresence(&data.shadowPresence)
+	if sp == nil {
+		data.raceDetectHookAlloc(size)
+		sp = atomicLoadShadowPresence(&data.shadowPresence)
+	}
+	(*sp)[num] = 1
+}
+
+// raceDetectHookClearPresent is called by the generated file interface
+// (*proto.internalFuncs) ClearPresent to optionally write an unprotected
+// shadow bitmap when race detection is enabled. In regular code it is
+// a noop.
+func raceDetectHookClearPresent(field *uint32, num uint32) {
+	data := findPointerToRaceDetectData(field, num)
+	if data == nil {
+		return
+	}
+	sp := atomicLoadShadowPresence(&data.shadowPresence)
+	if sp != nil {
+		(*sp)[num] = 0
+	}
+}