func (q *PointerQ) ReadSingleLazy() unsafe.Pointer {
val := q.readSingle()
if val != nil {
fatomic.LazyStore(&q.read.Value, q.read.Value+1)
}
return val
}
func (q *PointerQ) WriteSingleLazy(val unsafe.Pointer) bool {
b := q.writeSingle(val)
if b {
fatomic.LazyStore(&q.write.Value, q.write.Value+1)
}
return b
}
func (q *BatchQ) ReadSingle() unsafe.Pointer {
read := q.read
if read == q.writeCache {
q.writeCache = atomic.LoadInt64(&q.write)
if read == q.writeCache {
return nil
}
}
val := q.ringBuffer[read&q.mask]
fatomic.LazyStore(&q.read, q.read+1)
return val
}
func (q *BatchQ) WriteSingle(val unsafe.Pointer) bool {
write := q.write
readLimit := write - q.size
if readLimit == q.readCache {
q.readCache = atomic.LoadInt64(&q.read)
if readLimit == q.readCache {
return false
}
}
q.ringBuffer[write&q.mask] = val
fatomic.LazyStore(&q.write, q.write+1)
return true
}
func (q *PointerQ) Read() unsafe.Pointer {
read := q.read.Value
if read == q.writeCache.Value {
q.writeCache.Value = atomic.LoadInt64(&q.write.Value)
if read == q.writeCache.Value {
return nil
}
}
idx := read & q.mask
val := q.ringBuffer[idx]
fatomic.LazyStore(&q.read.Value, q.read.Value+1)
return val
}
func (q *PointerQ) Write(val unsafe.Pointer) bool {
write := q.write.Value
readLimit := write - q.size
if readLimit >= q.readCache.Value {
q.readCache.Value = atomic.LoadInt64(&q.read.Value)
if readLimit >= q.readCache.Value {
return false
}
}
idx := write & q.mask
q.ringBuffer[idx] = val
fatomic.LazyStore(&q.write.Value, q.write.Value+1)
return true
}
func (q *ChunkQ) Read() bool {
chunk := q.chunk
read := q.read.Value
readTo := read + chunk
if readTo > q.writeCache.Value {
q.writeCache.Value = atomic.LoadInt64(&q.write.Value)
if readTo > q.writeCache.Value {
return false
}
}
idx := read & q.mask
nxt := idx + chunk
copy(q.readBuffer, q.ringBuffer[idx:nxt])
fatomic.LazyStore(&q.read.Value, read+chunk)
return true
}
func (q *ChunkQ) Write() bool {
chunk := q.chunk
write := q.write.Value
writeTo := write + chunk
readLimit := writeTo - q.size
if readLimit > q.readCache.Value {
q.readCache.Value = atomic.LoadInt64(&q.read.Value)
if readLimit > q.readCache.Value {
return false
}
}
idx := write & q.mask
nxt := idx + chunk
copy(q.ringBuffer[idx:nxt], q.writeBuffer)
fatomic.LazyStore(&q.write.Value, write+chunk)
return true
}
func (q *ByteQ) Read(readBuffer []byte) bool {
read := q.read.Value
write := q.writeCache.Value
if read == write {
q.writeCache.Value = atomic.LoadInt64(&q.write.Value)
write = q.writeCache.Value
if read == write {
return false
}
}
chunk := min(write-read, int64(len(readBuffer)))
idx := read & q.mask
nxt := idx + chunk
if nxt <= q.size {
copy(readBuffer, q.ringBuffer[idx:nxt])
} else {
mid := q.size - idx
copy(readBuffer[:mid], q.ringBuffer[idx:])
copy(readBuffer[mid:], q.ringBuffer)
}
fatomic.LazyStore(&q.read.Value, q.read.Value+chunk)
return true
}
func (q *ByteQ) Write(writeBuffer []byte) bool {
chunk := int64(len(writeBuffer))
write := q.write.Value
writeTo := write + chunk
readLimit := writeTo - q.size
if readLimit > q.readCache.Value {
q.readCache.Value = atomic.LoadInt64(&q.read.Value)
if readLimit > q.readCache.Value {
return false
}
}
idx := write & q.mask
nxt := idx + chunk
if nxt <= q.size {
copy(q.ringBuffer[idx:nxt], writeBuffer)
} else {
mid := q.size - idx
copy(q.ringBuffer[idx:], writeBuffer[:mid])
copy(q.ringBuffer, writeBuffer[mid:])
}
fatomic.LazyStore(&q.write.Value, q.write.Value+chunk)
return true
}
func (q *ByteChunkQ) ReleaseReadLazy() {
fatomic.LazyStore(&q.read.Value, q.read.Value+q.chunk)
}
func (q *ByteChunkQ) ReleaseWriteLazy() {
fatomic.LazyStore(&q.write.Value, q.write.Value+q.chunk)
}
func (q *LLChunkQ) CommitRead() {
fatomic.LazyStore(&q.read.Value, q.read.Value+q.chunk)
}
func (q *LLChunkQ) CommitWrite() {
fatomic.LazyStore(&q.write.Value, q.write.Value+q.chunk)
}
func (q *BatchQ) CommitWriteBuffer(writeSize int64) {
fatomic.LazyStore(&q.write, q.write+writeSize)
}
func (q *BatchQ) CommitReadBuffer(readSize int64) {
fatomic.LazyStore(&q.read, q.read+readSize)
}
func (q *commonQ) ReleaseReadLazy() {
fatomic.LazyStore(&q.read.Value, q.read.Value+q.readSize.Value)
q.readSize.Value = 0
}
func (q *commonQ) ReleaseWriteLazy() {
fatomic.LazyStore(&q.write.Value, q.write.Value+q.writeSize.Value)
q.writeSize.Value = 0
}
