trace writer: Add a proxying StartupTraceWriter.
Adds StartupTraceWriter, which facilitates writing trace events during
early app startup while the connection to the perfetto service is
unavailable. The StartupTraceWriter writes into a lock-guarded
temporary local buffer until it is bound to a SMB-backed TraceWriter.
Once bound, any data written to the local buffer is copied to the SMB.
Future writes then proxy directly to the SMB-backed TraceWriter.
Bug: 122507010
Change-Id: I380eb088f42b050f097a6453c3001322c603d285
diff --git a/Android.bp b/Android.bp
index 82f4b33..8f5d8cb 100644
--- a/Android.bp
+++ b/Android.bp
@@ -88,6 +88,7 @@
"src/tracing/core/shared_memory_abi.cc",
"src/tracing/core/shared_memory_arbiter_impl.cc",
"src/tracing/core/sliced_protobuf_input_stream.cc",
+ "src/tracing/core/startup_trace_writer.cc",
"src/tracing/core/sys_stats_config.cc",
"src/tracing/core/test_config.cc",
"src/tracing/core/trace_buffer.cc",
@@ -273,6 +274,7 @@
"src/tracing/core/shared_memory_abi.cc",
"src/tracing/core/shared_memory_arbiter_impl.cc",
"src/tracing/core/sliced_protobuf_input_stream.cc",
+ "src/tracing/core/startup_trace_writer.cc",
"src/tracing/core/sys_stats_config.cc",
"src/tracing/core/test_config.cc",
"src/tracing/core/trace_buffer.cc",
@@ -412,6 +414,7 @@
"src/tracing/core/shared_memory_abi.cc",
"src/tracing/core/shared_memory_arbiter_impl.cc",
"src/tracing/core/sliced_protobuf_input_stream.cc",
+ "src/tracing/core/startup_trace_writer.cc",
"src/tracing/core/sys_stats_config.cc",
"src/tracing/core/test_config.cc",
"src/tracing/core/trace_buffer.cc",
@@ -608,6 +611,7 @@
"src/tracing/core/shared_memory_abi.cc",
"src/tracing/core/shared_memory_arbiter_impl.cc",
"src/tracing/core/sliced_protobuf_input_stream.cc",
+ "src/tracing/core/startup_trace_writer.cc",
"src/tracing/core/sys_stats_config.cc",
"src/tracing/core/test_config.cc",
"src/tracing/core/trace_buffer.cc",
@@ -2320,6 +2324,7 @@
"src/tracing/core/shared_memory_abi.cc",
"src/tracing/core/shared_memory_arbiter_impl.cc",
"src/tracing/core/sliced_protobuf_input_stream.cc",
+ "src/tracing/core/startup_trace_writer.cc",
"src/tracing/core/sys_stats_config.cc",
"src/tracing/core/test_config.cc",
"src/tracing/core/trace_buffer.cc",
@@ -2649,6 +2654,8 @@
"src/tracing/core/shared_memory_arbiter_impl_unittest.cc",
"src/tracing/core/sliced_protobuf_input_stream.cc",
"src/tracing/core/sliced_protobuf_input_stream_unittest.cc",
+ "src/tracing/core/startup_trace_writer.cc",
+ "src/tracing/core/startup_trace_writer_unittest.cc",
"src/tracing/core/sys_stats_config.cc",
"src/tracing/core/test_config.cc",
"src/tracing/core/trace_buffer.cc",