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Fix pipelines and tests#1415

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bmehta001 wants to merge 42 commits intomicrosoft:mainfrom
bmehta001:bhamehta/ci-fixes
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Fix pipelines and tests#1415
bmehta001 wants to merge 42 commits intomicrosoft:mainfrom
bmehta001:bhamehta/ci-fixes

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@bmehta001 bmehta001 commented Mar 18, 2026

  • Modernize all GitHub Actions workflows to use latest action versions and fix pre-existing bugs across iOS, Android, and Windows that cause CI failures, crashes, data races, and flaky tests.

  • Several CI pipelines were failing or logging extensive warnings due to:

    • Deprecated GitHub Actions (checkout v1/v2, setup-java v3, setup-msbuild v1.1) running on EOL Node.js 16
    • Removed macos-13 runner images (deprecated Dec 2024)
    • Hardcoded paths that break on newer runner images
    • Pre-existing bugs in iOS HTTP client, threading, and test infrastructure

    Changes

  1. Modernize GitHub Actions (11 workflow files)
  • Updated actions/checkout from v1/v2/v3 to v4
  • Updated actions/setup-java from v3 to v5
  • Updated android-actions/setup-android from v2 to v3
  • Updated microsoft/setup-msbuild from v1.1 to v2
  • Updated actions/upload-artifact from v2 to v4
  1. Pipeline improvements
  • Add concurrency groups to cancel superseded runs
  • Replace deprecated macos-13 with macos-14 and update simulator matrix
  • Remove hardcoded C:\Users\runneradmin\ → use $Env:USERPROFILE
  • Remove hardcoded cmdline-tools\7.0\bin (setup-android v3 adds sdkmanager to PATH)
  • Update vs-version from [16,) to [17,) for VS 2022
  1. Fix iOS CI: Simulator UUID Targeting (build-tests-ios.sh)

xcodebuild on macos-14 lists duplicate simulator entries, causing it to pick the "Any iOS Device" placeholder instead of a concrete simulator (actions/runner-images#8621). Fix by resolving the simulator UUID via xcrun simctl and using -destination "id=".

  1. Fix iOS HTTP Client Crashes and Leaks (5 files)
  • Use-after-destroy crash or deadlocks: Replace shared NSURLSession with per-instance ephemeral sessions with safe teardown via invalidateAndCancel.
    • Unlikely, aside from tests, for the SDK to be torn down and then be created again, but the ephemeral session over the "dispatch once" session can also potentially help to recover from zombie sessions, since we will re-create a new session.
  • Session invalidation: Invalidated in the destructor. Originally, HttpRequestApple::Cancel() called [session getTasksWithCompletionHandler:] to cancel every task on the shared static NSURLSession. The completion handler callback fires asynchronously on an internal dispatch queue, so when one SDK session tears down and a new session starts sending requests, the stale callback arrives and cancels the new session's in-flight tasks. This caused receivedRequests.size() == 0 in the second block of the restart test. The fix removes the blanket cancel and keeps only [m_dataTask cancel], which cancels the specific task.
  • Response body leak: Add delete before setting httpResponse to nullptr in HttpResponseDecoder. The Abort outcome path set ctx->httpResponse = nullptr without delete, leaking the SimpleHttpResponse allocated by the HTTP client. Added the missing delete like RetryNetwork already had

FlushAndTeardown() remains required before shutdown, as documented.

  1. Fix Data Race and Memory Leak (2 files)
  • TransmissionPolicyManager.cpp: Move m_scheduledUploadTime write inside LOCKGUARD to decrease chance of concurrent read/write and made m_runningLatency atomic for same reason (to avoid adding additional uses of LOCKGUARD, especially ones that could cause deadlocks if we make them too broad)
  • Added m_httpCallbacksMtx around .empty() check in HttpClientManager: cancelAllRequests() which reads m_httpCallbacks.empty(), since onHttpResponse() removes entries under that mutex on another thread.
  • WorkerThread.cpp: Clean up remaining task queues on shutdown instead of just logging warnings.
  1. Fix Static-Destruction-Order Crash (Logger.cpp)

Remove LOG_TRACE from ~Logger() to prevent crash when logging subsystem is destroyed before Logger instances during static destruction. Order of namespace destruction can change depending on system, but the original implementation was causing issues for the simulator (where debugLogMutex may be destroyed before the Logger instance). If this is an issue, I can revert it, as I am not sure if it would be an actual issue in a real iOS deployment scenario.

  1. Fix Android Build Issues (3 files)
  • HttpClientFactory.cpp: Use standard __ANDROID__ macro instead of non-standard ANDROID
  • HttpClient_Android.cpp: Mark unused log tag with attribute((unused))
  • config-default.h: Add #ifndef guards to prevent duplicate macro definitions
  1. Fix Flaky Tests (5 files)
  • Replace localhost with 127.0.0.1 in functional tests to avoid IPv6 resolution failures
  • Add synchronization loop for storage-full callback in APITest to fix assertion race
  • Increase timing tolerances in PalTests, BasicFuncTests, and MultipleLogManagerTests for slower CI environments

Testing

All changes have been validated through:

  • Local Windows builds (VS 2022), WSL, Android Simulator on WSL, macOS, iOS Simulator on macOS

bmehta001 and others added 7 commits March 17, 2026 23:52
Update all actions to latest major versions:
- actions/checkout: v1/v2/v3 -> v4
- actions/setup-java: v3 -> v5
- android-actions/setup-android: v2 -> v3
- microsoft/setup-msbuild: v1.1 -> v2
- actions/upload-artifact: v2 -> v4

Fix Android CI:
- Use sdkmanager from PATH (setup-android v3 adds it automatically)
  instead of hardcoded cmdline-tools/7.0/bin directory
- Replace hardcoded C:\Users\runneradmin with \C:\Users\bhamehta

Fix Windows CI:
- Update vs-version from [16,) to [17,) to match VS 2022 runners

Fix iOS/macOS CI:
- Replace deprecated macos-13 runner with macos-14
- Update iOS deployment target to 14.0
- Update simulator matrix for macos-14/macos-15 runners

General:
- Add concurrency groups to cancel superseded workflow runs
- Updates apply to both active and disabled (.off) workflows

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
xcodebuild on macos-14 runners lists duplicate simulator entries,
causing it to pick the 'Any iOS Device' placeholder as the first
match. This results in: 'Tests must be run on a concrete device'.

Fix by resolving the simulator UUID via xcrun simctl and passing
-destination id=<UUID> which is completely unambiguous. This is the
recommended approach per xcodebuild docs and actions/runner-images#8621.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
- Use per-instance ephemeral NSURLSession to prevent stale connection
  reuse and ensure clean teardown without use-after-destroy crashes
- Move session invalidation to CancelAllRequests for safer lifecycle
- Fix response body leak in HttpResponseDecoder
- Relax flaky test tolerances for CI simulator environments

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
…hread

- Move m_runningLatency assignment inside LOCKGUARD to prevent
  concurrent read/write race condition
- Clean up remaining task queues on WorkerThread shutdown instead
  of just logging, preventing memory leak

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Remove LOG_TRACE from ~Logger() to prevent crash when the logging
subsystem is torn down before Logger instances during static
destruction (observed on iOS simulator).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
- Use standard __ANDROID__ macro instead of non-standard ANDROID
  in HttpClientFactory.cpp
- Mark unused log tag with __attribute__((unused)) in
  HttpClient_Android.cpp
- Add #ifndef guards in config-default.h to prevent duplicate
  macro definitions

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
- Replace 'localhost' with '127.0.0.1' in functional tests to
  avoid IPv6 resolution failures on some CI environments
- Add synchronization loop for storage-full callback in APITest
  to avoid race condition in assertions
- Increase timing tolerances in PalTests for slower CI runners

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@bmehta001 bmehta001 requested a review from a team as a code owner March 18, 2026 05:39
bmehta001 and others added 4 commits March 18, 2026 01:34
The queue cleanup must not run after detach() — the detached thread
still needs the shutdown item to exit its event loop. Cleaning up
after detach deletes the shutdown signal, causing the thread to hang
and then access destroyed members (use-after-free).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
m_runningLatency is read without locks at lines 219 and 376, while
written from other threads. Making it std::atomic eliminates the
undefined behavior without requiring additional locks (which could
deadlock through upload callbacks). The existing locks remain for
other shared state they protect.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
…sary)

Now that m_runningLatency is std::atomic, the write doesn't need
to be inside the lock scope. Restore the original position from
main to minimize the diff.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Move m_runningLatency and m_scheduledUploadTime back to before the
LOCKGUARD scope, matching the original code on main. The .cpp now
has zero diff from main — all threading fixes are in the .hpp
(std::atomic declaration).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
bmehta001 and others added 2 commits March 18, 2026 03:00
MSVC rejects passing std::atomic<T> to variadic functions (deleted
copy constructor). Use explicit .load() to pass the underlying
EventLatency value.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
…-only

- Split WARN_FLAGS into GCC and Clang/AppleClang branches so each
  only gets flags it supports (-Wno-unknown-warning-option is
  Clang-only)
- Add -Wno-reorder as CXX_EXTRA_WARN_FLAGS to suppress member-init
  order warnings in submodule code
- Add -fno-finite-math-only to all non-MSVC REL_FLAGS to restore
  IEEE 754 compliance (INFINITY macro) needed by sqlite3 and tests
  when -ffast-math is enabled

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
The iOS simulator's network stack on CI runners has higher latency
than native builds. The SO_CONNECTION_IDLE socket option is not
available, causing NSURLSession to retry connections with delays.

- Replace std::this_thread::yield() with PAL::sleep(10) in
  waitForEvents() to reduce CPU contention on single-core runners
- Increase all waitForEvents timeouts from 1-3s to 5-10s
- Replace PAL::sleep(2000) with waitForEvents where possible
- Increase killSwitchWorks upload wait from 2s to 5s

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@bmehta001 bmehta001 force-pushed the bhamehta/ci-fixes branch 4 times, most recently from 0f8459a to 700ad68 Compare March 19, 2026 00:00
bmehta001 and others added 3 commits March 18, 2026 23:35
- Make RequestHandler::m_count atomic to fix data race between server
  thread (writing) and test thread (reading).
- Increase wait timeouts from 10s to 20s to accommodate slow CI
  simulators where NSURLSession connection setup can be delayed.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Increase PAL::sleep from 10s to 20s to give the production collector
upload more time on slow iOS simulator CI environments. Keeps full
test coverage including network upload assertions.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
The second half of LogManager_Initialize_DebugEventListener uploads to a
real production collector endpoint, which is unreliable on CI simulators.
Gate it with TARGET_OS_SIMULATOR so the storage-full and event-counting
assertions still run, while the network upload assertions only run on
real devices and non-Apple platforms.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
bmehta001 and others added 2 commits March 19, 2026 00:39
These changes cause deterministic test failures where meta-stats
start events are not delivered. The WorkerThread task deletion on
join is the most likely cause — it deletes pending upload tasks
(including start events) during FlushAndTeardown.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Revert all changes after 7c89cf6 that caused test regressions.
Restore HttpClientManager lock fix, HttpResponseDecoder leak fix,
and WorkerThread cleanup to their original working versions.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@bmehta001 bmehta001 self-assigned this Mar 19, 2026
void ensureSession();
std::mutex m_requestsMtx;
std::map<std::string, IHttpRequest*> m_requests;
void* m_session = nullptr; // NSURLSession*, opaque in header
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m_session is now an instance field that is created/read in ensureSession() / GetOrCreateSession() and released/nullled in CancelAllRequests() / the destructor, but those accesses are not synchronized. That means a request-start path can race with teardown and observe a session pointer while another thread is invalidating/transferring it. The old code had different lifecycle issues, but not this per-instance unsynchronized session race. I think we need to guard m_session lifetime with synchronization here, ideally with a very small critical section so we don’t hold a lock across the rest of request setup. Though I am still not comfortable introducing locks in the request processing path,

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I have removed setting m_session to nullptr in CancelAllRequests and now let only the destructor handle it. I think this should be thread-safe, since after we call CancelAllRequests in FlushAndTeardown, we set m_httpClient = nullptr;, which means no other code in HttpClient should trigger and ensureSession() / GetOrCreateSession()) will not create a new session. So, the destructor for HttpClient will then run when the reference count to httpClient hits 0, and set m_session to nullptr without any race conditions in HttpClient.

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This assumes a user correctly calls FlushAndTeardown, which should

  •  call m_system = nullptr destroyed the TelemetrySystem, including HttpClientManager which ultimately calls HttpClient_Apple::CancelAllRequests() (draining all requests), and the task dispatcher should now be idle and no longer trying to set requests
  • then set m_httpClient = nullptr; which should call the destructor for HttpClient safely, without any races

But since this is assumed in proper usage of the SDK, I think it is safe

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I think we can fix the original cancellation bug with a smaller change: keep the existing shared NSURLSession (defaultSessionConfiguration + dispatch_once) and just remove
the [session getTasksWithCompletionHandler:] block from HttpRequestApple::Cancel(), so we only cancel m_dataTask.

That async block is the source of the cross-instance cancel: it uses the static session after SDK teardown and can end up cancelling tasks from a newly initialized HttpClient_Apple. Scoping cancellation to m_dataTask should fix that without changing session ownership.

The per-instance session and ephemeralSessionConfiguration changes feel broader than needed and introduce the m_session lifetime concern discussed above. If there is a separate stale-connection/test flake being addressed by ephemeralSessionConfiguration, I’d prefer to handle that separately rather than changing production session behavior in this PR.

{
if (!m_session) {
@autoreleasepool {
NSURLSessionConfiguration* sessionConfig = [NSURLSessionConfiguration ephemeralSessionConfiguration];
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Switching from defaultSessionConfiguration to ephemeralSessionConfiguration is a real behavior change for Apple customers, not just an internal cleanup. Even if that is intended, it can change OS managed session semantics such as caching/cookie/persistence behavior across iOS/macOS versions. Given how broadly this SDK is used, I think we should call out and validate that compatibility impact explicitly.

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call out and validate that compatibility impact explicitly

Should I add a note about this to the docs and test it on more iPhone / iPad versions in the iOS Simulator?

bmehta001 and others added 5 commits March 26, 2026 22:28
Replace PAL::sleep(500) workaround with unique-per-invocation DB paths
for phase 2.  The SDK closes SQLite via sqlite3_close_v2(), which defers
file-descriptor cleanup when prepared statements linger.  Reusing a
fixed .phase2 path and std::remove()-ing the old files while deferred
fds are still open caused iOS 'vnode unlinked while in use' errors that
could invalidate the new DB's descriptors, leading to numCached == 0.

A fresh, never-before-seen path (atomic counter suffix) eliminates the
collision entirely — no stale files, no vnode warnings, no sleep needed.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Set TransmitProfile_RealTime before UploadNow() in tests that expect
events from multiple latency queues. Without this, UploadNow() triggers
one batch but subsequent queues wait for timer ticks, causing timeouts
on loaded CI runners. Affected tests: restartRecoversEventsFromStorage,
sendMetaStatsOnStart, DiagLevelRequiredOnly_* (2 tests).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
- BasicFuncTests::Initialize(): Reset CFG_INT_CACHE_FILE_SIZE,
  CFG_INT_STORAGE_FULL_PCT, and CFG_INT_STORAGE_FULL_CHECK_TIME to
  defaults. These were left contaminated by the DebugEventListener
  test which modifies the global LogManager config via reference.
- BasicFuncTests::Initialize(): Set TransmitProfile_RealTime so all
  timer delays are 0, preventing multi-batch upload timing issues.
- Add SetTransmitProfile(RealTime) before UploadNow in 5 more tests
  and revert their inflated timeouts back to originals.
- APITest DebugEventListener Phase 3: Add UploadNow + sleep for
  reliable upload verification before FlushAndTeardown.
- PalTests: Tighten timing upper bounds (1000ms/1500ms vs 2000ms).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
On iOS simulator, SO_CONNECTION_IDLE is unavailable, causing
NSURLSession to reuse stale connections and hit -1005 errors.
The default 3s retry backoff leaves insufficient time for retries
within the 5s test timeout. Setting 500ms initial backoff allows
quick recovery from transient connection failures.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Phase 2 no longer calls UploadNow + sleep(10000) before pausing.
On iOS simulator, the 10s production upload window hits -1005
(stale connection) errors that corrupt SDK state, preventing
Phase 3 from caching events (numCached=0). Phase 3 still verifies
upload functionality via ResumeTransmission + UploadNow.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@bmehta001 bmehta001 requested a review from lalitb March 30, 2026 14:30
Comment thread lib/tpm/TransmissionPolicyManager.cpp Outdated
Declare m_scheduledUploadTime as std::atomic<uint64_t> and move its
update back outside the LOCKGUARD, consistent with m_runningLatency.
All accesses were already under LOCKGUARD(m_scheduledUploadMutex), but
atomic makes the thread-safe intent self-documenting and guards against
future accesses that might omit the lock.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@bmehta001 bmehta001 force-pushed the bhamehta/ci-fixes branch from 7f4e119 to 79342fe Compare April 1, 2026 08:41
The iOS simulator tests can deadlock in CancelAllRequests spin loops
when an NSURLSession completion handler never fires.  Without a timeout
the job runs for 6 hours until GitHub Actions kills it.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@bmehta001 bmehta001 requested a review from ThomsonTan April 1, 2026 21:55
Comment thread .github/workflows/build-android.yml Outdated
Comment thread lib/pal/WorkerThread.cpp
Comment thread CMakeLists.txt Outdated
bmehta001 and others added 2 commits April 20, 2026 11:47
A rapid second push to main would cancel the first build, potentially
letting a broken commit go undetected until the next trigger.  Only
cancel in-progress runs for pull_request events where superseded builds
are redundant.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
The global -Wno-reorder suppressed member-init-order warnings across the
entire build, which could hide real bugs.  The only file that triggers
the warning is Sanitizer.cpp (from the lib/modules submodule) where
Sanitizer.hpp declares m_sanitizerprovider before m_notificationEventName
but the constructor initializes them in reverse order.

Scope the suppression to that single file via set_source_files_properties
until the submodule fixes the declaration order.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@bmehta001 bmehta001 force-pushed the bhamehta/ci-fixes branch 2 times, most recently from 1d83157 to ebdf617 Compare April 20, 2026 18:49
Restores visibility into dropped work that was lost when the old
LOG_WARN on non-empty queues was removed.  Logs queue sizes before
the join/detach decision so operators can see pending tasks in both
code paths.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Comment thread lib/http/HttpClient_Apple.mm
m_requests.empty() was read without holding m_requestsMtx while Erase
and Add mutate it under the lock.  Read the map under the lock to avoid
undefined behavior, matching the fix already applied to
HttpClientManager::cancelAllRequests().

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Comment thread build-tests-ios.sh
xcodebuild test -scheme iOSUnitTests -destination "platform=iOS Simulator,name=$SIMULATOR"
# Resolve simulator UUID to avoid ambiguous destination matching.
# Grab the last (newest OS) available device matching the requested name.
SIM_ID=$(xcrun simctl list devices available | grep "$SIMULATOR" | grep -oE '[A-F0-9-]{36}' | tail -1)
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Can we resolve the simulator from xcrun simctl list devices available --json and require device.name == "$SIMULATOR" before taking the UDID?

grep "$SIMULATOR" is more of substring match, and can resolve to multiple devices.

if [[ "${{ matrix.os }}" == "macos-13" ]]; then
export IOS_DEPLOYMENT_TARGET=13.0;
if [[ "${{ matrix.os }}" == "macos-14" ]]; then
export IOS_DEPLOYMENT_TARGET=14.0;
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The runner update from macos-13 to macos-14 makes sense, but this also raises the CI deployment target from IOS_DEPLOYMENT_TARGET=13.0 to 14.0. Is that intentional?

The current macos-14 log shows the job is using Xcode 15.4, which still supports lower iOS deployment targets, and README.md still documents iOS 12+ as supported. Since runner OS and deployment target are independent, I think we should keep this leg on macos-14 but continue exporting IOS_DEPLOYMENT_TARGET=13.0 unless we are intentionally dropping that lower-iOS coverage

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3 participants