audio: Add 'join' method to StreamWorker
This is intended for use in tests where the worker
just executes some actions and then exits by itself.
Use of 'join' instead of 'stop' ensures that the
worker goes through all actions.
Bug: 205884982
Test: atest libaudioaidlcommon_test
Change-Id: I8a9f4f0bb786ee606e3b63a9847f414119716a7d
diff --git a/audio/aidl/common/StreamWorker.cpp b/audio/aidl/common/StreamWorker.cpp
index 9bca760..dda0e4a 100644
--- a/audio/aidl/common/StreamWorker.cpp
+++ b/audio/aidl/common/StreamWorker.cpp
@@ -44,6 +44,10 @@
mWorkerStateChangeRequest = true;
}
}
+ join();
+}
+
+void ThreadController::join() {
if (mWorker.joinable()) {
mWorker.join();
}
diff --git a/audio/aidl/common/include/StreamWorker.h b/audio/aidl/common/include/StreamWorker.h
index 6260eca..88235c2 100644
--- a/audio/aidl/common/include/StreamWorker.h
+++ b/audio/aidl/common/include/StreamWorker.h
@@ -50,6 +50,10 @@
return mError;
}
void stop();
+ // Direct use of 'join' assumes that the StreamLogic is not intended
+ // to run forever, and is guaranteed to exit by itself. This normally
+ // only happen in tests.
+ void join();
bool waitForAtLeastOneCycle();
// Only used by unit tests.
@@ -133,7 +137,8 @@
void resume() { mThread.resume(); }
bool hasError() { return mThread.hasError(); }
std::string getError() { return mThread.getError(); }
- void stop() { return mThread.stop(); }
+ void stop() { mThread.stop(); }
+ void join() { mThread.join(); }
bool waitForAtLeastOneCycle() { return mThread.waitForAtLeastOneCycle(); }
// Only used by unit tests.
diff --git a/audio/aidl/common/tests/streamworker_tests.cpp b/audio/aidl/common/tests/streamworker_tests.cpp
index e3e484d..8ea8424 100644
--- a/audio/aidl/common/tests/streamworker_tests.cpp
+++ b/audio/aidl/common/tests/streamworker_tests.cpp
@@ -160,6 +160,14 @@
EXPECT_TRUE(worker.hasNoWorkerCycleCalled(kWorkerIdleCheckTime));
}
+TEST_P(StreamWorkerTest, WorkerJoin) {
+ ASSERT_TRUE(worker.start());
+ stream.setStopStatus();
+ worker.join();
+ EXPECT_FALSE(worker.hasError());
+ EXPECT_TRUE(worker.hasNoWorkerCycleCalled(kWorkerIdleCheckTime));
+}
+
TEST_P(StreamWorkerTest, WorkerError) {
ASSERT_TRUE(worker.start());
stream.setErrorStatus();