1 files changed, 104 insertions, 0 deletions
diff --git a/wsrep-lib/src/event_service_v1.cpp b/wsrep-lib/src/event_service_v1.cpp
new file mode 100644
index 00000000..ffaf4ec4
--- /dev/null
+++ b/wsrep-lib/src/event_service_v1.cpp
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2020 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 "event_service_v1.hpp"
+
+#include "wsrep/event_service.hpp"
+#include "wsrep/reporter.hpp"
+#include "wsrep/logger.hpp"
+#include "v26/wsrep_event_service.h"
+#include "service_helpers.hpp"
+
+#include <cassert>
+
+namespace wsrep_event_service_v1
+{
+    static std::atomic_flag initialized = ATOMIC_FLAG_INIT;
+
+    static void callback(
+        wsrep_event_context_t* ctx,
+        const char* name,
+        const char* value)
+    {
+        if (ctx)
+        {
+            wsrep::event_service* const impl
+                (reinterpret_cast<wsrep::event_service*>(ctx));
+            impl->process_event(name, value);
+        }
+    }
+
+    static const char* const log_string = "event service v1";
+}
+
+int wsrep::event_service_v1_probe(void* dlh)
+{
+    typedef int (*init_fn)(wsrep_event_service_v1_t*);
+    typedef void (*deinit_fn)();
+    if (wsrep_impl::service_probe<init_fn>(
+            dlh, WSREP_EVENT_SERVICE_INIT_FUNC_V1,
+            wsrep_event_service_v1::log_string) ||
+        wsrep_impl::service_probe<deinit_fn>(
+            dlh, WSREP_EVENT_SERVICE_DEINIT_FUNC_V1,
+            wsrep_event_service_v1::log_string))
+    {
+        // diagnostic message was logged by wsrep_impl::service_probe()
+        return 1;
+    }
+    return 0;
+}
+
+int wsrep::event_service_v1_init(void* dlh,
+                                 wsrep::event_service* event_service)
+{
+    if (not (dlh && event_service)) return EINVAL;
+
+    if (wsrep_event_service_v1::initialized.test_and_set()) return EALREADY;
+
+    wsrep_event_service_v1_t service =
+    {
+        wsrep_event_service_v1::callback,
+        reinterpret_cast<wsrep_event_context_t*>(event_service)
+    };
+
+    typedef int (*init_fn)(wsrep_event_service_v1_t*);
+    int const ret(wsrep_impl::service_init<init_fn>(
+                      dlh, WSREP_EVENT_SERVICE_INIT_FUNC_V1, &service,
+                      wsrep_event_service_v1::log_string));
+    if (ret)
+    {
+        wsrep_event_service_v1::initialized.clear();
+    }
+
+    return ret;
+}
+
+void wsrep::event_service_v1_deinit(void* dlh)
+{
+    if (wsrep_event_service_v1::initialized.test_and_set())
+    {
+        // service was initialized
+        typedef int (*deinit_fn)();
+        wsrep_impl::service_deinit<deinit_fn>(
+            dlh, WSREP_EVENT_SERVICE_DEINIT_FUNC_V1,
+            wsrep_event_service_v1::log_string);
+    }
+
+    wsrep_event_service_v1::initialized.clear();
+}