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@ -461,51 +461,76 @@ class ClientCallbackReaderWriterImpl |
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// 1. Send initial metadata (unless corked) + recv initial metadata
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// 2. Any read backlog
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// 3. Any write backlog
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// 4. Recv trailing metadata (unless corked)
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// 4. Recv trailing metadata, on_completion callback
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started_ = true; |
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start_tag_.Set(call_.call(), |
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[this](bool ok) { |
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reactor_->OnReadInitialMetadataDone(ok); |
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MaybeFinish(); |
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}, |
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&start_ops_, /*can_inline=*/false); |
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if (!start_corked_) { |
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start_ops_.SendInitialMetadata(&context_->send_initial_metadata_, |
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context_->initial_metadata_flags()); |
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} |
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start_ops_.RecvInitialMetadata(context_); |
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start_ops_.set_core_cq_tag(&start_tag_); |
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call_.PerformOps(&start_ops_); |
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{ |
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grpc::internal::MutexLock lock(&start_mu_); |
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if (backlog_.read_ops) { |
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call_.PerformOps(&read_ops_); |
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} |
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if (backlog_.write_ops) { |
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call_.PerformOps(&write_ops_); |
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} |
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if (backlog_.writes_done_ops) { |
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call_.PerformOps(&writes_done_ops_); |
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} |
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call_.PerformOps(&finish_ops_); |
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// The last thing in this critical section is to set started_ so that it
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// can be used lock-free as well.
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started_.store(true, std::memory_order_release); |
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// Also set up the read and write tags so that they don't have to be set up
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// each time
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write_tag_.Set(call_.call(), |
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[this](bool ok) { |
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reactor_->OnWriteDone(ok); |
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MaybeFinish(); |
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}, |
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&write_ops_, /*can_inline=*/false); |
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write_ops_.set_core_cq_tag(&write_tag_); |
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read_tag_.Set(call_.call(), |
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[this](bool ok) { |
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reactor_->OnReadDone(ok); |
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MaybeFinish(); |
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}, |
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&read_ops_, /*can_inline=*/false); |
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read_ops_.set_core_cq_tag(&read_tag_); |
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if (read_ops_at_start_) { |
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call_.PerformOps(&read_ops_); |
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} |
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if (write_ops_at_start_) { |
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call_.PerformOps(&write_ops_); |
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} |
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if (writes_done_ops_at_start_) { |
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call_.PerformOps(&writes_done_ops_); |
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} |
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// MaybeFinish outside the lock to make sure that destruction of this object
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// doesn't take place while holding the lock (which would cause the lock to
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// be released after destruction)
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this->MaybeFinish(); |
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finish_tag_.Set(call_.call(), [this](bool /*ok*/) { MaybeFinish(); }, |
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&finish_ops_, /*can_inline=*/false); |
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finish_ops_.ClientRecvStatus(context_, &finish_status_); |
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finish_ops_.set_core_cq_tag(&finish_tag_); |
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call_.PerformOps(&finish_ops_); |
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} |
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void Read(Response* msg) override { |
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read_ops_.RecvMessage(msg); |
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callbacks_outstanding_.fetch_add(1, std::memory_order_relaxed); |
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if (GPR_UNLIKELY(!started_.load(std::memory_order_acquire))) { |
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grpc::internal::MutexLock lock(&start_mu_); |
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if (GPR_LIKELY(!started_.load(std::memory_order_relaxed))) { |
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backlog_.read_ops = true; |
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return; |
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} |
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if (started_) { |
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call_.PerformOps(&read_ops_); |
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} else { |
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read_ops_at_start_ = true; |
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} |
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call_.PerformOps(&read_ops_); |
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} |
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void Write(const Request* msg, ::grpc::WriteOptions options) override { |
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if (start_corked_) { |
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write_ops_.SendInitialMetadata(&context_->send_initial_metadata_, |
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context_->initial_metadata_flags()); |
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start_corked_ = false; |
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} |
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if (options.is_last_message()) { |
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options.set_buffer_hint(); |
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write_ops_.ClientSendClose(); |
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@ -513,22 +538,18 @@ class ClientCallbackReaderWriterImpl |
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// TODO(vjpai): don't assert
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GPR_CODEGEN_ASSERT(write_ops_.SendMessagePtr(msg, options).ok()); |
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callbacks_outstanding_.fetch_add(1, std::memory_order_relaxed); |
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if (GPR_UNLIKELY(corked_write_needed_)) { |
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write_ops_.SendInitialMetadata(&context_->send_initial_metadata_, |
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context_->initial_metadata_flags()); |
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corked_write_needed_ = false; |
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} |
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if (GPR_UNLIKELY(!started_.load(std::memory_order_acquire))) { |
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grpc::internal::MutexLock lock(&start_mu_); |
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if (GPR_LIKELY(!started_.load(std::memory_order_relaxed))) { |
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backlog_.write_ops = true; |
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return; |
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} |
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if (started_) { |
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call_.PerformOps(&write_ops_); |
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} else { |
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write_ops_at_start_ = true; |
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} |
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call_.PerformOps(&write_ops_); |
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} |
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void WritesDone() override { |
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if (start_corked_) { |
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writes_done_ops_.SendInitialMetadata(&context_->send_initial_metadata_, |
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context_->initial_metadata_flags()); |
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start_corked_ = false; |
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} |
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writes_done_ops_.ClientSendClose(); |
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writes_done_tag_.Set(call_.call(), |
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[this](bool ok) { |
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@ -538,19 +559,11 @@ class ClientCallbackReaderWriterImpl |
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&writes_done_ops_, /*can_inline=*/false); |
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writes_done_ops_.set_core_cq_tag(&writes_done_tag_); |
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callbacks_outstanding_.fetch_add(1, std::memory_order_relaxed); |
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if (GPR_UNLIKELY(corked_write_needed_)) { |
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writes_done_ops_.SendInitialMetadata(&context_->send_initial_metadata_, |
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context_->initial_metadata_flags()); |
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corked_write_needed_ = false; |
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if (started_) { |
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call_.PerformOps(&writes_done_ops_); |
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} else { |
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writes_done_ops_at_start_ = true; |
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} |
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if (GPR_UNLIKELY(!started_.load(std::memory_order_acquire))) { |
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grpc::internal::MutexLock lock(&start_mu_); |
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if (GPR_LIKELY(!started_.load(std::memory_order_relaxed))) { |
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backlog_.writes_done_ops = true; |
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return; |
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} |
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} |
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call_.PerformOps(&writes_done_ops_); |
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} |
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void AddHold(int holds) override { |
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@ -567,42 +580,8 @@ class ClientCallbackReaderWriterImpl |
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: context_(context), |
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call_(call), |
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reactor_(reactor), |
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start_corked_(context_->initial_metadata_corked_), |
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corked_write_needed_(start_corked_) { |
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start_corked_(context_->initial_metadata_corked_) { |
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this->BindReactor(reactor); |
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// Set up the unchanging parts of the start, read, and write tags and ops.
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start_tag_.Set(call_.call(), |
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[this](bool ok) { |
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reactor_->OnReadInitialMetadataDone(ok); |
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MaybeFinish(); |
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}, |
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&start_ops_, /*can_inline=*/false); |
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start_ops_.RecvInitialMetadata(context_); |
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start_ops_.set_core_cq_tag(&start_tag_); |
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write_tag_.Set(call_.call(), |
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[this](bool ok) { |
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reactor_->OnWriteDone(ok); |
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MaybeFinish(); |
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}, |
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&write_ops_, /*can_inline=*/false); |
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write_ops_.set_core_cq_tag(&write_tag_); |
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read_tag_.Set(call_.call(), |
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[this](bool ok) { |
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reactor_->OnReadDone(ok); |
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MaybeFinish(); |
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}, |
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&read_ops_, /*can_inline=*/false); |
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read_ops_.set_core_cq_tag(&read_tag_); |
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// Also set up the Finish tag and op set.
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finish_tag_.Set(call_.call(), [this](bool /*ok*/) { MaybeFinish(); }, |
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&finish_ops_, |
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/*can_inline=*/false); |
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finish_ops_.ClientRecvStatus(context_, &finish_status_); |
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finish_ops_.set_core_cq_tag(&finish_tag_); |
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} |
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::grpc_impl::ClientContext* const context_; |
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@ -613,9 +592,7 @@ class ClientCallbackReaderWriterImpl |
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grpc::internal::CallOpRecvInitialMetadata> |
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start_ops_; |
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grpc::internal::CallbackWithSuccessTag start_tag_; |
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const bool start_corked_; |
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bool corked_write_needed_; // no lock needed since only accessed in
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// Write/WritesDone which cannot be concurrent
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bool start_corked_; |
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grpc::internal::CallOpSet<grpc::internal::CallOpClientRecvStatus> finish_ops_; |
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grpc::internal::CallbackWithSuccessTag finish_tag_; |
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@ -626,27 +603,22 @@ class ClientCallbackReaderWriterImpl |
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grpc::internal::CallOpClientSendClose> |
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write_ops_; |
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grpc::internal::CallbackWithSuccessTag write_tag_; |
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bool write_ops_at_start_{false}; |
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grpc::internal::CallOpSet<grpc::internal::CallOpSendInitialMetadata, |
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grpc::internal::CallOpClientSendClose> |
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writes_done_ops_; |
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grpc::internal::CallbackWithSuccessTag writes_done_tag_; |
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bool writes_done_ops_at_start_{false}; |
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grpc::internal::CallOpSet<grpc::internal::CallOpRecvMessage<Response>> |
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read_ops_; |
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grpc::internal::CallbackWithSuccessTag read_tag_; |
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bool read_ops_at_start_{false}; |
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struct StartCallBacklog { |
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bool write_ops = false; |
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bool writes_done_ops = false; |
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bool read_ops = false; |
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}; |
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StartCallBacklog backlog_ /* GUARDED_BY(start_mu_) */; |
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// Minimum of 3 callbacks to pre-register for start ops, StartCall, and finish
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std::atomic<intptr_t> callbacks_outstanding_{3}; |
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std::atomic_bool started_{false}; |
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grpc::internal::Mutex start_mu_; |
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// Minimum of 2 callbacks to pre-register for start and finish
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std::atomic<intptr_t> callbacks_outstanding_{2}; |
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bool started_{false}; |
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}; |
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template <class Request, class Response> |
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@ -698,7 +670,8 @@ class ClientCallbackReaderImpl : public ClientCallbackReader<Response> { |
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// This call initiates two batches, plus any backlog, each with a callback
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// 1. Send initial metadata (unless corked) + recv initial metadata
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// 2. Any backlog
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// 3. Recv trailing metadata
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// 3. Recv trailing metadata, on_completion callback
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started_ = true; |
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start_tag_.Set(call_.call(), |
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[this](bool ok) { |
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@ -720,13 +693,8 @@ class ClientCallbackReaderImpl : public ClientCallbackReader<Response> { |
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}, |
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&read_ops_, /*can_inline=*/false); |
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read_ops_.set_core_cq_tag(&read_tag_); |
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{ |
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grpc::internal::MutexLock lock(&start_mu_); |
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if (backlog_.read_ops) { |
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call_.PerformOps(&read_ops_); |
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} |
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started_.store(true, std::memory_order_release); |
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if (read_ops_at_start_) { |
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call_.PerformOps(&read_ops_); |
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} |
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finish_tag_.Set(call_.call(), [this](bool /*ok*/) { MaybeFinish(); }, |
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@ -739,14 +707,11 @@ class ClientCallbackReaderImpl : public ClientCallbackReader<Response> { |
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void Read(Response* msg) override { |
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read_ops_.RecvMessage(msg); |
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callbacks_outstanding_.fetch_add(1, std::memory_order_relaxed); |
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if (GPR_UNLIKELY(!started_.load(std::memory_order_acquire))) { |
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grpc::internal::MutexLock lock(&start_mu_); |
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if (GPR_LIKELY(!started_.load(std::memory_order_relaxed))) { |
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backlog_.read_ops = true; |
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return; |
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} |
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if (started_) { |
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call_.PerformOps(&read_ops_); |
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} else { |
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read_ops_at_start_ = true; |
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} |
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call_.PerformOps(&read_ops_); |
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} |
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void AddHold(int holds) override { |
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@ -787,16 +752,11 @@ class ClientCallbackReaderImpl : public ClientCallbackReader<Response> { |
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grpc::internal::CallOpSet<grpc::internal::CallOpRecvMessage<Response>> |
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read_ops_; |
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grpc::internal::CallbackWithSuccessTag read_tag_; |
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struct StartCallBacklog { |
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bool read_ops = false; |
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}; |
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StartCallBacklog backlog_ /* GUARDED_BY(start_mu_) */; |
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bool read_ops_at_start_{false}; |
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// Minimum of 2 callbacks to pre-register for start and finish
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std::atomic<intptr_t> callbacks_outstanding_{2}; |
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std::atomic_bool started_{false}; |
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grpc::internal::Mutex start_mu_; |
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bool started_{false}; |
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}; |
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template <class Response> |
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@ -849,60 +809,74 @@ class ClientCallbackWriterImpl : public ClientCallbackWriter<Request> { |
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// This call initiates two batches, plus any backlog, each with a callback
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// 1. Send initial metadata (unless corked) + recv initial metadata
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// 2. Any backlog
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// 3. Recv trailing metadata
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// 3. Recv trailing metadata, on_completion callback
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started_ = true; |
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start_tag_.Set(call_.call(), |
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[this](bool ok) { |
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reactor_->OnReadInitialMetadataDone(ok); |
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MaybeFinish(); |
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}, |
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&start_ops_, /*can_inline=*/false); |
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if (!start_corked_) { |
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start_ops_.SendInitialMetadata(&context_->send_initial_metadata_, |
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context_->initial_metadata_flags()); |
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} |
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start_ops_.RecvInitialMetadata(context_); |
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start_ops_.set_core_cq_tag(&start_tag_); |
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|
call_.PerformOps(&start_ops_); |
|
|
|
|
|
|
|
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|
{ |
|
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|
grpc::internal::MutexLock lock(&start_mu_); |
|
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|
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|
|
|
|
if (backlog_.write_ops) { |
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|
call_.PerformOps(&write_ops_); |
|
|
|
|
} |
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|
|
|
if (backlog_.writes_done_ops) { |
|
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|
call_.PerformOps(&writes_done_ops_); |
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|
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|
} |
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|
call_.PerformOps(&finish_ops_); |
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|
// The last thing in this critical section is to set started_ so that it
|
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|
|
|
// can be used lock-free as well.
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|
started_.store(true, std::memory_order_release); |
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|
// Also set up the read and write tags so that they don't have to be set up
|
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|
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|
// each time
|
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|
write_tag_.Set(call_.call(), |
|
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|
|
[this](bool ok) { |
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|
reactor_->OnWriteDone(ok); |
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|
MaybeFinish(); |
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|
}, |
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|
&write_ops_, /*can_inline=*/false); |
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|
write_ops_.set_core_cq_tag(&write_tag_); |
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|
|
if (write_ops_at_start_) { |
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|
call_.PerformOps(&write_ops_); |
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|
} |
|
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|
|
// MaybeFinish outside the lock to make sure that destruction of this object
|
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|
|
// doesn't take place while holding the lock (which would cause the lock to
|
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|
// be released after destruction)
|
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|
this->MaybeFinish(); |
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|
if (writes_done_ops_at_start_) { |
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|
call_.PerformOps(&writes_done_ops_); |
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|
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|
} |
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|
finish_tag_.Set(call_.call(), [this](bool /*ok*/) { MaybeFinish(); }, |
|
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|
|
&finish_ops_, /*can_inline=*/false); |
|
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|
|
finish_ops_.ClientRecvStatus(context_, &finish_status_); |
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|
|
finish_ops_.set_core_cq_tag(&finish_tag_); |
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|
|
call_.PerformOps(&finish_ops_); |
|
|
|
|
} |
|
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|
|
|
void Write(const Request* msg, ::grpc::WriteOptions options) override { |
|
|
|
|
if (GPR_UNLIKELY(options.is_last_message())) { |
|
|
|
|
if (start_corked_) { |
|
|
|
|
write_ops_.SendInitialMetadata(&context_->send_initial_metadata_, |
|
|
|
|
context_->initial_metadata_flags()); |
|
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|
|
start_corked_ = false; |
|
|
|
|
} |
|
|
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|
|
|
|
|
|
if (options.is_last_message()) { |
|
|
|
|
options.set_buffer_hint(); |
|
|
|
|
write_ops_.ClientSendClose(); |
|
|
|
|
} |
|
|
|
|
// TODO(vjpai): don't assert
|
|
|
|
|
GPR_CODEGEN_ASSERT(write_ops_.SendMessagePtr(msg, options).ok()); |
|
|
|
|
callbacks_outstanding_.fetch_add(1, std::memory_order_relaxed); |
|
|
|
|
|
|
|
|
|
if (GPR_UNLIKELY(corked_write_needed_)) { |
|
|
|
|
write_ops_.SendInitialMetadata(&context_->send_initial_metadata_, |
|
|
|
|
context_->initial_metadata_flags()); |
|
|
|
|
corked_write_needed_ = false; |
|
|
|
|
if (started_) { |
|
|
|
|
call_.PerformOps(&write_ops_); |
|
|
|
|
} else { |
|
|
|
|
write_ops_at_start_ = true; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (GPR_UNLIKELY(!started_.load(std::memory_order_acquire))) { |
|
|
|
|
grpc::internal::MutexLock lock(&start_mu_); |
|
|
|
|
if (GPR_LIKELY(!started_.load(std::memory_order_relaxed))) { |
|
|
|
|
backlog_.write_ops = true; |
|
|
|
|
return; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
call_.PerformOps(&write_ops_); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
void WritesDone() override { |
|
|
|
|
if (start_corked_) { |
|
|
|
|
writes_done_ops_.SendInitialMetadata(&context_->send_initial_metadata_, |
|
|
|
|
context_->initial_metadata_flags()); |
|
|
|
|
start_corked_ = false; |
|
|
|
|
} |
|
|
|
|
writes_done_ops_.ClientSendClose(); |
|
|
|
|
writes_done_tag_.Set(call_.call(), |
|
|
|
|
[this](bool ok) { |
|
|
|
@ -912,21 +886,11 @@ class ClientCallbackWriterImpl : public ClientCallbackWriter<Request> { |
|
|
|
|
&writes_done_ops_, /*can_inline=*/false); |
|
|
|
|
writes_done_ops_.set_core_cq_tag(&writes_done_tag_); |
|
|
|
|
callbacks_outstanding_.fetch_add(1, std::memory_order_relaxed); |
|
|
|
|
|
|
|
|
|
if (GPR_UNLIKELY(corked_write_needed_)) { |
|
|
|
|
writes_done_ops_.SendInitialMetadata(&context_->send_initial_metadata_, |
|
|
|
|
context_->initial_metadata_flags()); |
|
|
|
|
corked_write_needed_ = false; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (GPR_UNLIKELY(!started_.load(std::memory_order_acquire))) { |
|
|
|
|
grpc::internal::MutexLock lock(&start_mu_); |
|
|
|
|
if (GPR_LIKELY(!started_.load(std::memory_order_relaxed))) { |
|
|
|
|
backlog_.writes_done_ops = true; |
|
|
|
|
return; |
|
|
|
|
} |
|
|
|
|
if (started_) { |
|
|
|
|
call_.PerformOps(&writes_done_ops_); |
|
|
|
|
} else { |
|
|
|
|
writes_done_ops_at_start_ = true; |
|
|
|
|
} |
|
|
|
|
call_.PerformOps(&writes_done_ops_); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
void AddHold(int holds) override { |
|
|
|
@ -945,36 +909,10 @@ class ClientCallbackWriterImpl : public ClientCallbackWriter<Request> { |
|
|
|
|
: context_(context), |
|
|
|
|
call_(call), |
|
|
|
|
reactor_(reactor), |
|
|
|
|
start_corked_(context_->initial_metadata_corked_), |
|
|
|
|
corked_write_needed_(start_corked_) { |
|
|
|
|
start_corked_(context_->initial_metadata_corked_) { |
|
|
|
|
this->BindReactor(reactor); |
|
|
|
|
|
|
|
|
|
// Set up the unchanging parts of the start and write tags and ops.
|
|
|
|
|
start_tag_.Set(call_.call(), |
|
|
|
|
[this](bool ok) { |
|
|
|
|
reactor_->OnReadInitialMetadataDone(ok); |
|
|
|
|
MaybeFinish(); |
|
|
|
|
}, |
|
|
|
|
&start_ops_, /*can_inline=*/false); |
|
|
|
|
start_ops_.RecvInitialMetadata(context_); |
|
|
|
|
start_ops_.set_core_cq_tag(&start_tag_); |
|
|
|
|
|
|
|
|
|
write_tag_.Set(call_.call(), |
|
|
|
|
[this](bool ok) { |
|
|
|
|
reactor_->OnWriteDone(ok); |
|
|
|
|
MaybeFinish(); |
|
|
|
|
}, |
|
|
|
|
&write_ops_, /*can_inline=*/false); |
|
|
|
|
write_ops_.set_core_cq_tag(&write_tag_); |
|
|
|
|
|
|
|
|
|
// Also set up the Finish tag and op set.
|
|
|
|
|
finish_ops_.RecvMessage(response); |
|
|
|
|
finish_ops_.AllowNoMessage(); |
|
|
|
|
finish_tag_.Set(call_.call(), [this](bool /*ok*/) { MaybeFinish(); }, |
|
|
|
|
&finish_ops_, |
|
|
|
|
/*can_inline=*/false); |
|
|
|
|
finish_ops_.ClientRecvStatus(context_, &finish_status_); |
|
|
|
|
finish_ops_.set_core_cq_tag(&finish_tag_); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
::grpc_impl::ClientContext* const context_; |
|
|
|
@ -985,9 +923,7 @@ class ClientCallbackWriterImpl : public ClientCallbackWriter<Request> { |
|
|
|
|
grpc::internal::CallOpRecvInitialMetadata> |
|
|
|
|
start_ops_; |
|
|
|
|
grpc::internal::CallbackWithSuccessTag start_tag_; |
|
|
|
|
const bool start_corked_; |
|
|
|
|
bool corked_write_needed_; // no lock needed since only accessed in
|
|
|
|
|
// Write/WritesDone which cannot be concurrent
|
|
|
|
|
bool start_corked_; |
|
|
|
|
|
|
|
|
|
grpc::internal::CallOpSet<grpc::internal::CallOpGenericRecvMessage, |
|
|
|
|
grpc::internal::CallOpClientRecvStatus> |
|
|
|
@ -1000,22 +936,17 @@ class ClientCallbackWriterImpl : public ClientCallbackWriter<Request> { |
|
|
|
|
grpc::internal::CallOpClientSendClose> |
|
|
|
|
write_ops_; |
|
|
|
|
grpc::internal::CallbackWithSuccessTag write_tag_; |
|
|
|
|
bool write_ops_at_start_{false}; |
|
|
|
|
|
|
|
|
|
grpc::internal::CallOpSet<grpc::internal::CallOpSendInitialMetadata, |
|
|
|
|
grpc::internal::CallOpClientSendClose> |
|
|
|
|
writes_done_ops_; |
|
|
|
|
grpc::internal::CallbackWithSuccessTag writes_done_tag_; |
|
|
|
|
bool writes_done_ops_at_start_{false}; |
|
|
|
|
|
|
|
|
|
struct StartCallBacklog { |
|
|
|
|
bool write_ops = false; |
|
|
|
|
bool writes_done_ops = false; |
|
|
|
|
}; |
|
|
|
|
StartCallBacklog backlog_ /* GUARDED_BY(start_mu_) */; |
|
|
|
|
|
|
|
|
|
// Minimum of 3 callbacks to pre-register for start ops, StartCall, and finish
|
|
|
|
|
std::atomic<intptr_t> callbacks_outstanding_{3}; |
|
|
|
|
std::atomic_bool started_{false}; |
|
|
|
|
grpc::internal::Mutex start_mu_; |
|
|
|
|
// Minimum of 2 callbacks to pre-register for start and finish
|
|
|
|
|
std::atomic<intptr_t> callbacks_outstanding_{2}; |
|
|
|
|
bool started_{false}; |
|
|
|
|
}; |
|
|
|
|
|
|
|
|
|
template <class Request> |
|
|
|
@ -1054,6 +985,7 @@ class ClientCallbackUnaryImpl final : public ClientCallbackUnary { |
|
|
|
|
// This call initiates two batches, each with a callback
|
|
|
|
|
// 1. Send initial metadata + write + writes done + recv initial metadata
|
|
|
|
|
// 2. Read message, recv trailing metadata
|
|
|
|
|
started_ = true; |
|
|
|
|
|
|
|
|
|
start_tag_.Set(call_.call(), |
|
|
|
|
[this](bool ok) { |
|
|
|
@ -1121,6 +1053,7 @@ class ClientCallbackUnaryImpl final : public ClientCallbackUnary { |
|
|
|
|
|
|
|
|
|
// This call will have 2 callbacks: start and finish
|
|
|
|
|
std::atomic<intptr_t> callbacks_outstanding_{2}; |
|
|
|
|
bool started_{false}; |
|
|
|
|
}; |
|
|
|
|
|
|
|
|
|
class ClientCallbackUnaryFactory { |
|
|
|
|