Log avatar preparation generation and teardown state

tools/chatgui/src/avatars/avatarmanager.cpp

@@ -38,6 +38,8 @@ AvatarManager::AvatarManager(DbManager* db, QObject* parent) : QObject(parent),
 }
 
 AvatarManager::~AvatarManager() {
+    DEBUG_DEBUG(DEBUG_CATEGORY_MEDIA, "avatar: manager destroying preparing=%d jobs=%d workers=%d",
+                m_preparing, int(m_jobs.size()), m_pool.activeThreadCount());
     m_timer.stop(); s_manager = nullptr; m_pool.waitForDone();
     for (auto id : m_jobs.keys()) {
         if (!gui_bridge_is_uasync_ready()) break;
@@ -282,6 +284,8 @@ void AvatarManager::uploadDefault(const QString& source, quint64 server, const Q
     const QString directory = m_directory; const quint64 generation = ++m_generation; cancelUploads();
     QStringList pinned; if (!m_defaultHash.isEmpty()) pinned << m_defaultHash;
     for (const auto& job : m_jobs) if (job.upload) pinned << job.ref.hash;
+    DEBUG_DEBUG(DEBUG_CATEGORY_MEDIA, "avatar: preparing generation=%llu server=%016llx source=%s",
+                (unsigned long long)generation, (unsigned long long)server, qPrintable(source));
     m_pool.start(QRunnable::create([this, source, directory, server, generation, pinned, crop] {
         const auto result = AvatarCache::prepare(source, directory, crop);
         if (!result.image.isNull()) { auto keep = pinned; keep << result.hash; AvatarCache::prune(directory, keep); }
@@ -321,6 +325,7 @@ void AvatarManager::cancelUploads() {
 
 void AvatarManager::clearDefault() {
     if (!m_ready || !gui_bridge_is_uasync_ready()) return;
+    DEBUG_DEBUG(DEBUG_CATEGORY_MEDIA, "avatar: clear default generation=%llu preparing=%d", (unsigned long long)m_generation, m_preparing);
     ++m_generation; m_preparing = false; cancelUploads(); m_defaultHash.clear(); m_defaultServer = 0; saveDefault();
     for (const auto& ref : m_refs) if (ref.owner == m_db->myNodeId()) {
         Job job; job.ref = ref; job.ref.server = 0; job.ref.hash.clear(); job.upload = true; job.generation = m_generation;