Activate asan on ubuntu (#12165)

Author: wu-hui

.github/workflows/firestore.yml

@@ -97,7 +97,6 @@ jobs:
     - name: Run check
       run:  scripts/check.sh --test-only
 
-
   cmake:
     needs: check
     # Either a scheduled run from public repo, or a pull request with firestore changes.
@@ -231,7 +230,7 @@ jobs:
         scripts/third_party/travis/retry.sh scripts/build.sh Firestore ${{ runner.os }} cmake
 
 
-  sanitizers:
+  sanitizers-mac:
     # Either a scheduled run from public repo, or a pull request with firestore changes.
     if: |
       (github.repository == 'Firebase/firebase-ios-sdk' && github.event_name == 'schedule') ||
@@ -240,7 +239,6 @@ jobs:
 
     strategy:
       matrix:
-        # TODO(b/260248007): Re-enable this once tsan passes on Linux
         os: [macos-12]
         sanitizer: [asan, tsan]
 
@@ -274,6 +272,52 @@ jobs:
         scripts/third_party/travis/retry.sh scripts/build.sh Firestore ${{ runner.os }} cmake
 
 
+  sanitizers-ubuntu:
+    # Either a scheduled run from public repo, or a pull request with firestore changes.
+    if: |
+      (github.repository == 'Firebase/firebase-ios-sdk' && github.event_name == 'schedule') ||
+      (github.event_name == 'pull_request' && needs.changes.outputs.changed == 'true')
+    needs: check
+
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        # Excluding TSAN on ubuntu because of the warnings it generates around schedule.cc.
+        # This could be due to Apple Clang provide additional support for synchronization
+        # on Apple platforms, which is what we primarily care about.
+        sanitizer: [asan]
+
+    runs-on: ${{ matrix.os }}
+
+    env:
+      SANITIZERS: ${{ matrix.sanitizer }}
+      ASAN_OPTIONS: detect_leaks=0
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Prepare ccache
+      uses: actions/cache@v3
+      with:
+        path: ${{ runner.temp }}/ccache
+        key: ${{ matrix.sanitizer }}-firestore-ccache-${{ runner.os }}-${{ github.sha }}
+        restore-keys: |
+          ${{ matrix.sanitizer }}-firestore-ccache-${{ runner.os }}-
+
+    - uses: actions/setup-python@v4
+      with:
+        python-version: '3.7'
+
+    - name: Setup build
+      run:  scripts/install_prereqs.sh Firestore ${{ runner.os }} cmake
+
+    - name: Build and test
+      run: |
+        export EXPERIMENTAL_MODE=true
+        export CCACHE_DIR=${{ runner.temp }}/ccache
+        scripts/third_party/travis/retry.sh scripts/build.sh Firestore ${{ runner.os }} cmake
+
+
   xcodebuild:
     # Either a scheduled run from public repo, or a pull request with firestore changes.
     if: |

Firestore/core/src/util/schedule.cc

@@ -18,7 +18,6 @@
 
 #include "Firestore/core/src/util/hard_assert.h"
 #include "Firestore/core/src/util/task.h"
-#include "absl/memory/memory.h"
 
 namespace firebase {
 namespace firestore {
@@ -29,7 +28,7 @@ Schedule::~Schedule() {
 }
 
 void Schedule::Clear() {
-  std::unique_lock<std::mutex> lock{mutex_};
+  std::lock_guard<std::mutex> lock{mutex_};
 
   for (Task* task : scheduled_) {
     task->Release();