Interface for configureRpcThreadpool tests

Test: links, compiles
Change-Id: I58996c4eeba5889c73407b1d71f03638b23d73d1
Merged-In: I58996c4eeba5889c73407b1d71f03638b23d73d1
diff --git a/tests/multithread/1.0/default/Multithread.cpp b/tests/multithread/1.0/default/Multithread.cpp
new file mode 100644
index 0000000..1fb267c
--- /dev/null
+++ b/tests/multithread/1.0/default/Multithread.cpp
@@ -0,0 +1,63 @@
+#define LOG_TAG "hidl_test"
+
+#include <android-base/logging.h>
+#include "Multithread.h"
+#include <inttypes.h>
+#include <thread>
+
+#include <hidl/HidlTransportSupport.h>
+
+namespace android {
+namespace hardware {
+namespace tests {
+namespace multithread {
+namespace V1_0 {
+namespace implementation {
+
+// Methods from ::android::hardware::tests::multithread::V1_0::IMultithread follow.
+Return<void> Multithread::setNumThreads(int32_t maxThreads, int32_t numThreads) {
+    LOG(INFO) << "SERVER(Multithread) setNumThreads("
+              << maxThreads << ", " << numThreads << ")";
+
+    LOG(INFO) << "SERVER(Multithread) call configureRpcThreadpool("
+              << maxThreads << ")";
+    ::android::hardware::configureRpcThreadpool(maxThreads, /*willjoin*/ false);
+
+    mNumThreads = numThreads;
+    mNoTimeout = true;
+
+    return Void();
+}
+
+Return<bool> Multithread::runNewThread() {
+    LOG(INFO) << "SERVER(Multithread) runNewThread()";
+
+    std::unique_lock<std::mutex> lk(mCvMutex);
+    --mNumThreads;
+
+    LOG(INFO) << "SERVER(Multithread) runNewThread()";
+    LOG(INFO) << mNumThreads << "threads left";
+
+    mCv.notify_all();
+    bool noTimeout = mCv.wait_for(lk, kTimeoutDuration,
+        [&] { return mNumThreads <= 0 || !mNoTimeout; });
+
+    if (!noTimeout) {
+        mNoTimeout = false;
+        mCv.notify_all();
+    }
+    return mNoTimeout;
+}
+
+IMultithread* HIDL_FETCH_IMultithread(const char* /* name */) {
+    return new Multithread();
+}
+
+decltype(Multithread::kTimeoutDuration) Multithread::kTimeoutDuration;
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace multithread
+}  // namespace tests
+}  // namespace hardware
+}  // namespace android