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Fix flaky GNSS VTS

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In the original code, vector::erase() would invalidate iterators so we
should move the thread object into the std::async() for the blocking
operation.

Bug: 344250967
Test: atest VtsHalGnssTargetTest
Change-Id: I4cc82131bb070a37cb6ed9dbe9d7cccc7ab5ee89
This commit is contained in:
Yu-Han Yang 2024-06-11 21:59:02 +00:00
parent 29e5340a69
commit 23e78269a3
2 changed files with 20 additions and 14 deletions
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17
gnss/aidl/default/GnssMeasurementInterface.cpp
View file

@ -146,15 +146,18 @@ void GnssMeasurementInterface::stop() {
mIsActive = false;
mGnss->setGnssMeasurementEnabled(false);
mThreadBlocker.notify();
for (auto iter = mThreads.begin(); iter != mThreads.end(); ++iter) {
for (auto iter = mThreads.begin(); iter != mThreads.end();) {
if (iter->joinable()) {
mFutures.push_back(std::async(std::launch::async, [this, iter] {
iter->join();
mThreads.erase(iter);
}));
} else {
mThreads.erase(iter);
// Store the thread object by value
std::thread threadToMove = std::move(*iter);
mFutures.push_back(std::async(std::launch::async,
[threadToMove = std::move(threadToMove)]() mutable {
ALOGD("joining thread");
threadToMove.join();
}));
}
iter = mThreads.erase(iter);
}
}

17
gnss/aidl/default/GnssNavigationMessageInterface.cpp
View file

@ -90,15 +90,18 @@ void GnssNavigationMessageInterface::stop() {
ALOGD("stop");
mIsActive = false;
mThreadBlocker.notify();
for (auto iter = mThreads.begin(); iter != mThreads.end(); ++iter) {
for (auto iter = mThreads.begin(); iter != mThreads.end();) {
if (iter->joinable()) {
mFutures.push_back(std::async(std::launch::async, [this, iter] {
iter->join();
mThreads.erase(iter);
}));
} else {
mThreads.erase(iter);
// Store the thread object by value
std::thread threadToMove = std::move(*iter);
mFutures.push_back(std::async(std::launch::async,
[threadToMove = std::move(threadToMove)]() mutable {
ALOGD("joining thread");
threadToMove.join();
}));
}
iter = mThreads.erase(iter);
}
}