commit 3079cb7c32421099a73e1a774b228635eeb3f189
author Corey Tabaka <eieio@google.com> Thu Jan 19 15:07:26 2017 -0800
committer Alex Vakulenko <avakulenko@google.com> Thu Feb 02 14:57:42 2017 -0800
tree b9bc4229dfdfa58a48971885ff3a225ae58c7276
parent a8a92784bc5f6a50ce00311c6161fbcfc0898c5a

Use generic libpdx event bits facility in libvrflinger and bufferhubd.

Use the generic event bits abstraction to support UDS and ServiceFS
backends properly.

Bug: 34466748
Test: start/stop basicvr repeatedly; observe stable bufferhub counts.
Change-Id: I9f2ea67c25860ad7fb931938991a29a37f3391fc

services/vr/bufferhubd/buffer_hub.cpp

diff --git a/services/vr/bufferhubd/buffer_hub.cpp b/services/vr/bufferhubd/buffer_hub.cpp
index 12243dc..0906476 100644
--- a/services/vr/bufferhubd/buffer_hub.cpp
+++ b/services/vr/bufferhubd/buffer_hub.cpp
@@ -108,6 +108,7 @@
         // consumer_count is tracked by producer. When it's zero, producer must
         // have already hung up and the consumer is orphaned.
         stream << std::setw(14) << "Orphaned.";
+        stream << (" channel_id=" + std::to_string(channel->channel_id()));
         stream << std::endl;
         continue;
       }
@@ -433,6 +434,9 @@
 
 void BufferHubChannel::SignalAvailable() {
   ATRACE_NAME("BufferHubChannel::SignalAvailable");
+  ALOGD_IF(TRACE,
+           "BufferHubChannel::SignalAvailable: channel_id=%d buffer_id=%d",
+           channel_id(), buffer_id());
   if (!IsDetached()) {
     const int ret = service_->ModifyChannelEvents(channel_id_, 0, POLLIN);
     ALOGE_IF(ret < 0,
@@ -446,6 +450,9 @@
 
 void BufferHubChannel::ClearAvailable() {
   ATRACE_NAME("BufferHubChannel::ClearAvailable");
+  ALOGD_IF(TRACE,
+           "BufferHubChannel::ClearAvailable: channel_id=%d buffer_id=%d",
+           channel_id(), buffer_id());
   if (!IsDetached()) {
     const int ret = service_->ModifyChannelEvents(channel_id_, POLLIN, 0);
     ALOGE_IF(ret < 0,
@@ -459,6 +466,8 @@
 
 void BufferHubChannel::Hangup() {
   ATRACE_NAME("BufferHubChannel::Hangup");
+  ALOGD_IF(TRACE, "BufferHubChannel::Hangup: channel_id=%d buffer_id=%d",
+           channel_id(), buffer_id());
   if (!IsDetached()) {
     const int ret = service_->ModifyChannelEvents(channel_id_, 0, POLLHUP);
     ALOGE_IF(