chore: import upstream snapshot with attribution

2026-07-13 13:29:29 +08:00
commit f52cf32e56
1718 changed files with 366293 additions and 0 deletions
@@ -0,0 +1,78 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+#include <gtest/gtest.h>
+#include "butil/files/file_watcher.h"
+#include "butil/logging.h"
+
+namespace {
+class FileWatcherTest : public ::testing::Test{
+protected:
+    FileWatcherTest(){};
+    virtual ~FileWatcherTest(){};
+    virtual void SetUp() {
+    };
+    virtual void TearDown() {
+    };
+};
+ 
+//! gejun: check basic functions of butil::FileWatcher
+TEST_F(FileWatcherTest, random_op) {
+    srand (time(0));
+    
+    butil::FileWatcher fw;
+    EXPECT_EQ (0, fw.init("dummy_file"));
+    
+    for (int i=0; i<30; ++i) {
+        if (rand() % 2) {
+            const butil::FileWatcher::Change ret = fw.check_and_consume();
+            switch (ret) {
+            case butil::FileWatcher::UPDATED:
+                LOG(INFO) << fw.filepath() << " is updated";
+                break;
+            case butil::FileWatcher::CREATED:
+                LOG(INFO) << fw.filepath() << " is created";
+                break;
+            case butil::FileWatcher::DELETED:
+                LOG(INFO) << fw.filepath() << " is deleted";
+                break;
+            case butil::FileWatcher::UNCHANGED:
+                LOG(INFO) << fw.filepath() << " does not change or still not exist";
+                break;
+            }
+        }
+        
+        switch (rand() % 2) {
+        case 0:
+            ASSERT_EQ(0, system("touch dummy_file"));
+            LOG(INFO) << "action: touch dummy_file";
+            break;
+        case 1:
+            ASSERT_EQ(0, system("rm -f dummy_file"));
+            LOG(INFO) << "action: rm -f dummy_file";
+            break;
+        case 2:
+            LOG(INFO) << "action: (nothing)";
+            break;
+        }
+        
+        usleep (10000);
+    }
+    ASSERT_EQ(0, system("rm -f dummy_file"));
+}
+
+}  // namespace