From d90c47420af3aa59c6fc864c30023ec62b0a26ac Mon Sep 17 00:00:00 2001
From: Jasmine Cha <chajasmine@google.com>
Date: Tue, 15 Feb 2022 16:31:13 +0800
Subject: [PATCH] audio: use binder threadpool

Support to communicate with other service with AIDL interface.

Bug: 215463744
Test: build pass

Signed-off-by: Jasmine Cha <chajasmine@google.com>
Change-Id: I13da2121623779b0ba21d29cf39c11abc7b96dd9
---
 audio/common/all-versions/default/service/Android.bp  | 1 +
 audio/common/all-versions/default/service/service.cpp | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/audio/common/all-versions/default/service/Android.bp b/audio/common/all-versions/default/service/Android.bp
index 1bd6abeb47..9890be2954 100644
--- a/audio/common/all-versions/default/service/Android.bp
+++ b/audio/common/all-versions/default/service/Android.bp
@@ -52,6 +52,7 @@ cc_binary {
     shared_libs: [
         "libcutils",
         "libbinder",
+        "libbinder_ndk",
         "libhidlbase",
         "liblog",
         "libutils",
diff --git a/audio/common/all-versions/default/service/service.cpp b/audio/common/all-versions/default/service/service.cpp
index e26369fd70..3472af134e 100644
--- a/audio/common/all-versions/default/service/service.cpp
+++ b/audio/common/all-versions/default/service/service.cpp
@@ -20,6 +20,7 @@
 #include <string>
 #include <vector>
 
+#include <android/binder_process.h>
 #include <binder/ProcessState.h>
 #include <cutils/properties.h>
 #include <hidl/HidlTransportSupport.h>
@@ -52,6 +53,9 @@ int main(int /* argc */, char* /* argv */ []) {
     // start a threadpool for vndbinder interactions
     ::android::ProcessState::self()->startThreadPool();
 
+    ABinderProcess_setThreadPoolMaxThreadCount(1);
+    ABinderProcess_startThreadPool();
+
     const int32_t defaultValue = -1;
     int32_t value =
         property_get_int32("persist.vendor.audio.service.hwbinder.size_kbyte", defaultValue);