1 files changed, 95 insertions, 0 deletions
diff --git a/wsrep-lib/src/streaming_context.cpp b/wsrep-lib/src/streaming_context.cpp
new file mode 100644
index 00000000..c5423079
--- /dev/null
+++ b/wsrep-lib/src/streaming_context.cpp
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2023 Codership Oy <info@codership.com>
+ *
+ * This file is part of wsrep-lib.
+ *
+ * Wsrep-lib is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Wsrep-lib is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with wsrep-lib.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "wsrep/streaming_context.hpp"
+
+#include <cassert>
+
+void wsrep::streaming_context::params(enum fragment_unit fragment_unit,
+                                      size_t fragment_size)
+{
+    if (fragment_size)
+    {
+        WSREP_LOG_DEBUG(
+            wsrep::log::debug_log_level(), wsrep::log::debug_level_streaming,
+            "Enabling streaming: " << fragment_unit << " " << fragment_size);
+    }
+    else
+    {
+        WSREP_LOG_DEBUG(wsrep::log::debug_log_level(),
+                        wsrep::log::debug_level_streaming,
+                        "Disabling streaming");
+    }
+    fragment_unit_ = fragment_unit;
+    fragment_size_ = fragment_size;
+    reset_unit_counter();
+}
+
+void wsrep::streaming_context::enable(enum fragment_unit fragment_unit,
+                                      size_t fragment_size)
+{
+    WSREP_LOG_DEBUG(
+        wsrep::log::debug_log_level(), wsrep::log::debug_level_streaming,
+        "Enabling streaming: " << fragment_unit << " " << fragment_size);
+    assert(fragment_size > 0);
+    fragment_unit_ = fragment_unit;
+    fragment_size_ = fragment_size;
+}
+
+void wsrep::streaming_context::disable()
+{
+    WSREP_LOG_DEBUG(wsrep::log::debug_log_level(),
+                    wsrep::log::debug_level_streaming, "Disabling streaming");
+    fragment_size_ = 0;
+}
+
+void wsrep::streaming_context::stored(wsrep::seqno seqno)
+{
+    check_fragment_seqno(seqno);
+    fragments_.push_back(seqno);
+}
+
+void wsrep::streaming_context::applied(wsrep::seqno seqno)
+{
+    check_fragment_seqno(seqno);
+    ++fragments_certified_;
+    fragments_.push_back(seqno);
+}
+
+void wsrep::streaming_context::rolled_back(wsrep::transaction_id id)
+{
+    assert(rollback_replicated_for_ == wsrep::transaction_id::undefined());
+    rollback_replicated_for_ = id;
+}
+
+void wsrep::streaming_context::cleanup()
+{
+    fragments_certified_ = 0;
+    fragments_.clear();
+    rollback_replicated_for_ = wsrep::transaction_id::undefined();
+    unit_counter_ = 0;
+    log_position_ = 0;
+}
+
+void wsrep::streaming_context::check_fragment_seqno(
+    wsrep::seqno seqno WSREP_UNUSED)
+{
+    assert(seqno.is_undefined() == false);
+    assert(fragments_.empty() || fragments_.back() < seqno);
+}