diff options
Diffstat (limited to 'src/core/ext/filters/client_channel/lb_policy/pick_first')
-rw-r--r-- | src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.cc | 33 |
1 files changed, 6 insertions, 27 deletions
diff --git a/src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.cc b/src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.cc index 9120abfa3c..602d6e92f9 100644 --- a/src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.cc +++ b/src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.cc @@ -126,7 +126,6 @@ class PickFirst : public LoadBalancingPolicy { void ShutdownLocked() override; void StartPickingLocked(); - void DestroyUnselectedSubchannelsLocked(); void UpdateChildRefsLocked(); // All our subchannels. @@ -250,14 +249,9 @@ void PickFirst::CancelMatchingPicksLocked(uint32_t initial_metadata_flags_mask, void PickFirst::StartPickingLocked() { started_picking_ = true; - if (subchannel_list_ != nullptr) { - for (size_t i = 0; i < subchannel_list_->num_subchannels(); ++i) { - if (subchannel_list_->subchannel(i)->subchannel() != nullptr) { - subchannel_list_->subchannel(i) - ->CheckConnectivityStateAndStartWatchingLocked(); - break; - } - } + if (subchannel_list_ != nullptr && subchannel_list_->num_subchannels() > 0) { + subchannel_list_->subchannel(0) + ->CheckConnectivityStateAndStartWatchingLocked(); } } @@ -294,15 +288,6 @@ bool PickFirst::PickLocked(PickState* pick, grpc_error** error) { return false; } -void PickFirst::DestroyUnselectedSubchannelsLocked() { - for (size_t i = 0; i < subchannel_list_->num_subchannels(); ++i) { - PickFirstSubchannelData* sd = subchannel_list_->subchannel(i); - if (selected_ != sd) { - sd->UnrefSubchannelLocked("selected_different_subchannel"); - } - } -} - grpc_connectivity_state PickFirst::CheckConnectivityLocked(grpc_error** error) { return grpc_connectivity_state_get(&state_tracker_, error); } @@ -419,7 +404,6 @@ void PickFirst::UpdateLocked(const grpc_channel_args& args) { if (sd->CheckConnectivityStateLocked(&error) == GRPC_CHANNEL_READY) { selected_ = sd; subchannel_list_ = std::move(subchannel_list); - DestroyUnselectedSubchannelsLocked(); sd->StartConnectivityWatchLocked(); // If there was a previously pending update (which may or may // not have contained the currently selected subchannel), drop @@ -504,7 +488,6 @@ void PickFirst::PickFirstSubchannelData::ProcessConnectivityChangeLocked( p->TryReresolutionLocked(&grpc_lb_pick_first_trace, GRPC_ERROR_NONE); // In transient failure. Rely on re-resolution to recover. p->selected_ = nullptr; - UnrefSubchannelLocked("pf_selected_shutdown"); StopConnectivityWatchLocked(); } else { grpc_connectivity_state_set(&p->state_tracker_, connectivity_state, @@ -535,11 +518,9 @@ void PickFirst::PickFirstSubchannelData::ProcessConnectivityChangeLocked( case GRPC_CHANNEL_TRANSIENT_FAILURE: { StopConnectivityWatchLocked(); PickFirstSubchannelData* sd = this; - do { - size_t next_index = - (sd->Index() + 1) % subchannel_list()->num_subchannels(); - sd = subchannel_list()->subchannel(next_index); - } while (sd->subchannel() == nullptr); + size_t next_index = + (sd->Index() + 1) % subchannel_list()->num_subchannels(); + sd = subchannel_list()->subchannel(next_index); // Case 1: Only set state to TRANSIENT_FAILURE if we've tried // all subchannels. if (sd->Index() == 0 && subchannel_list() == p->subchannel_list_.get()) { @@ -600,8 +581,6 @@ void PickFirst::PickFirstSubchannelData::ProcessUnselectedReadyLocked() { if (grpc_lb_pick_first_trace.enabled()) { gpr_log(GPR_INFO, "Pick First %p selected subchannel %p", p, subchannel()); } - // Drop all other subchannels, since we are now connected. - p->DestroyUnselectedSubchannelsLocked(); // Update any calls that were waiting for a pick. PickState* pick; while ((pick = p->pending_picks_)) { |