commit c04a70bef522523456180caa04c41038651afc47
author Badhri Jagan Sridharan <badhri@google.com> Wed Oct 17 18:26:37 2018 -0700
committer android-build-team Robot <android-build-team-robot@google.com> Mon Nov 26 00:18:12 2018 +0000
tree 8251cf809095926f853fe89a8818a16f57a723a4
parent b4b810f53ca417afd6034531d004a3a84b27443a

usbd: Do not join the thread pool

Work around for the following crash:
02-08 05:34:20.968  root   990   990 F DEBUG   :     #00 pc 000000000001447c  /system/lib64/libhwbinder.so (android::hardware::IPCThreadState::joinThreadPool(bool)+28)
02-08 05:34:20.968  root   990   990 F DEBUG   :     #01 pc 000000000001c174  /system/lib64/libhwbinder.so (android::hardware::PoolThread::threadLoop()+24)
02-08 05:34:20.968  root   990   990 F DEBUG   :     #02 pc 000000000000f934  /system/lib64/libutils.so (android::Thread::_threadLoop(void*)+280)
02-08 05:34:20.968  root   990   990 F DEBUG   :     #03 pc 00000000000821e0  /system/lib64/libc.so (__pthread_start(void*)+36)
02-08 05:34:20.968  root   990   990 F DEBUG   :     #04 pc 0000000000023178  /system/lib64/libc.so (__start_thread+68)

Bug: 117470462
Change-Id: I1e8f28a7d0f3041d9be8138a3dc9ed9c74419f91
(cherry picked from commit f123d45ce15601f446eaac487431cd59e2cdccf5)

usbd/usbd.cpp

diff --git a/usbd/usbd.cpp b/usbd/usbd.cpp
index 41cd8dd..191fb92 100644
--- a/usbd/usbd.cpp
+++ b/usbd/usbd.cpp
@@ -22,15 +22,20 @@
 #include <android-base/properties.h>
 #include <android/hardware/usb/gadget/1.0/IUsbGadget.h>
 
+#include <hidl/HidlTransportSupport.h>
+
 #define PERSISTENT_USB_CONFIG "persist.sys.usb.config"
 
 using android::base::GetProperty;
 using android::base::SetProperty;
+using android::hardware::configureRpcThreadpool;
 using android::hardware::usb::gadget::V1_0::GadgetFunction;
 using android::hardware::usb::gadget::V1_0::IUsbGadget;
 using android::hardware::Return;
 
 int main(int /*argc*/, char** /*argv*/) {
+    configureRpcThreadpool(1, true /*callerWillJoin*/);
+
     android::sp<IUsbGadget> gadget = IUsbGadget::getService();
     Return<void> ret;