Cover pending requests with logs (#1714)

The extended logs are under the ifdef, so they don't appear
in production.

This is a temporary commit to extend the logs for certain integration
tests, so that we could have more insights from the CI failed psv and
sv jobs. This commit will be reverted once OCMAM-771 is resolved.

Relates-To: OCMAM-771

Signed-off-by: Mykola Malik <ext-mykola.malik@here.com>

Author: mykolamalik

olp-cpp-sdk-core/include/olp/core/client/PendingRequests.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2019-2021 HERE Europe B.V.
+ * Copyright (C) 2019-2026 HERE Europe B.V.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -36,6 +36,8 @@ namespace client {
  */
 class CORE_API PendingRequests final {
  public:
+  ~PendingRequests();
+
   /**
    * @brief Cancels all the pending tasks.
    *

olp-cpp-sdk-core/src/client/PendingRequests.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2019-2021 HERE Europe B.V.
+ * Copyright (C) 2019-2026 HERE Europe B.V.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -29,13 +29,25 @@ namespace {
 constexpr auto kLogTag = "PendingRequests";
 }
 
+PendingRequests::~PendingRequests() {
+#ifdef LOGGING_ENABLE_EXTENDED_INFO_LEVEL
+  OLP_SDK_LOG_INFO_F(kLogTag, "Destructor: pending task count=%zu, this=%p",
+                     GetTaskCount(), static_cast<void*>(this));
+#endif  // LOGGING_ENABLE_EXTENDED_INFO_LEVEL
+}
+
 bool PendingRequests::CancelAll() {
   ContextMap contexts;
   {
     std::lock_guard<std::mutex> lock(task_contexts_lock_);
     contexts = task_contexts_;
   }
 
+#ifdef LOGGING_ENABLE_EXTENDED_INFO_LEVEL
+  OLP_SDK_LOG_INFO_F(kLogTag, "CancelAll: pending task count=%zu, this=%p",
+                     contexts.size(), static_cast<void*>(this));
+#endif  // LOGGING_ENABLE_EXTENDED_INFO_LEVEL
+
   for (auto context : contexts) {
     context.CancelToken().Cancel();
   }
@@ -52,23 +64,70 @@ bool PendingRequests::CancelAllAndWait() {
     contexts = std::move(task_contexts_);
   }
 
+#ifdef LOGGING_ENABLE_EXTENDED_INFO_LEVEL
+  OLP_SDK_LOG_INFO_F(
+      kLogTag, "CancelAllAndWait: started, pending task count=%zu, this=%p",
+      contexts.size(), static_cast<void*>(this));
+#endif  // LOGGING_ENABLE_EXTENDED_INFO_LEVEL
+
   for (auto context : contexts) {
     if (!context.BlockingCancel()) {
-      OLP_SDK_LOG_WARNING(kLogTag, "Timeout, when waiting on BlockingCancel");
+      OLP_SDK_LOG_WARNING_F(kLogTag,
+                            "Timeout, when waiting on BlockingCancel, this=%p",
+                            static_cast<void*>(this));
     }
   }
 
+#ifdef LOGGING_ENABLE_EXTENDED_INFO_LEVEL
+  OLP_SDK_LOG_INFO_F(kLogTag, "CancelAllAndWait: finished, this=%p",
+                     static_cast<void*>(this));
+#endif  // LOGGING_ENABLE_EXTENDED_INFO_LEVEL
+
   return true;
 }
 
 void PendingRequests::Insert(TaskContext task_context) {
-  std::lock_guard<std::mutex> lock(task_contexts_lock_);
-  task_contexts_.insert(task_context);
+#ifdef LOGGING_ENABLE_EXTENDED_INFO_LEVEL
+  size_t size = 0;
+#endif  // LOGGING_ENABLE_EXTENDED_INFO_LEVEL
+
+  {
+    std::lock_guard<std::mutex> lock(task_contexts_lock_);
+    task_contexts_.insert(task_context);
+
+#ifdef LOGGING_ENABLE_EXTENDED_INFO_LEVEL
+    size = task_contexts_.size();
+#endif  // LOGGING_ENABLE_EXTENDED_INFO_LEVEL
+  }
+
+#ifdef LOGGING_ENABLE_EXTENDED_INFO_LEVEL
+  OLP_SDK_LOG_INFO_F(
+      kLogTag,
+      "Insert: a new task context inserted. Pending task count=%zu, this=%p",
+      size, static_cast<void*>(this));
+#endif  // LOGGING_ENABLE_EXTENDED_INFO_LEVEL
 }
 
 void PendingRequests::Remove(TaskContext task_context) {
-  std::lock_guard<std::mutex> lock(task_contexts_lock_);
-  task_contexts_.erase(task_context);
+#ifdef LOGGING_ENABLE_EXTENDED_INFO_LEVEL
+  size_t size = 0;
+#endif  // LOGGING_ENABLE_EXTENDED_INFO_LEVEL
+
+  {
+    std::lock_guard<std::mutex> lock(task_contexts_lock_);
+    task_contexts_.erase(task_context);
+
+#ifdef LOGGING_ENABLE_EXTENDED_INFO_LEVEL
+    size = task_contexts_.size();
+#endif  // LOGGING_ENABLE_EXTENDED_INFO_LEVEL
+  }
+
+#ifdef LOGGING_ENABLE_EXTENDED_INFO_LEVEL
+  OLP_SDK_LOG_INFO_F(
+      kLogTag,
+      "Remove: a task context removed. Pending task count=%zu, this=%p", size,
+      static_cast<void*>(this));
+#endif  // LOGGING_ENABLE_EXTENDED_INFO_LEVEL
 }
 
 size_t PendingRequests::GetTaskCount() const {