Removed ostream include from public API headers.

src/CMakeLists.txt

@@ -7,6 +7,7 @@ add_library(wsrep-lib
   id.cpp
   logger.cpp
   provider.cpp
+  seqno.cpp
   server_state.cpp
   transaction.cpp
   wsrep_provider_v26.cpp)

src/client_state.cpp

@@ -185,6 +185,26 @@ wsrep::client_state::after_statement()
     return asr_success;
 }
 
+int wsrep::client_state::enable_streaming(
+    enum wsrep::streaming_context::fragment_unit
+    fragment_unit,
+    size_t fragment_size)
+{
+    assert(mode_ == m_replicating);
+    if (transaction_.active() &&
+        transaction_.streaming_context_.fragment_unit() !=
+        fragment_unit)
+    {
+        wsrep::log_error()
+            << "Changing fragment unit for active transaction "
+            << "not allowed";
+        return 1;
+    }
+    transaction_.streaming_context_.enable(
+        fragment_unit, fragment_size);
+    return 0;
+}
+
 // Private
 
 void wsrep::client_state::debug_log_state(const char* context) const

src/provider.cpp

@@ -33,3 +33,24 @@ wsrep::provider* wsrep::provider::make_provider(
     }
     return 0;
 }
+
+std::string wsrep::flags_to_string(int flags)
+{
+    std::ostringstream oss;
+    if (flags & provider::flag::start_transaction)
+        oss << "start_transaction | ";
+    if (flags & provider::flag::commit)
+        oss << "commit | ";
+    if (flags & provider::flag::rollback)
+        oss << "rollback | ";
+    if (flags & provider::flag::isolation)
+        oss << "isolation | ";
+    if (flags & provider::flag::pa_unsafe)
+        oss << "pa_unsafe | ";
+    if (flags & provider::flag::snapshot)
+        oss << "snapshot | ";
+
+    std::string ret(oss.str());
+    if (ret.size() > 3) ret.erase(ret.size() - 3);
+    return ret;
+}

src/seqno.cpp

@@ -0,0 +1,11 @@
+//
+// Copyright (C) 2018 Codership Oy <info@codership.com>
+//
+
+#include "wsrep/seqno.hpp"
+#include <ostream>
+
+std::ostream& wsrep::operator<<(std::ostream& os, wsrep::seqno seqno)
+{
+    return (os << seqno.get());
+}