SQL: forced, hidden versioning [closes #32]

2 files changed, 86 insertions, 0 deletions

diff --git a/plugin/versioning/CMakeLists.txt b/plugin/versioning/CMakeLists.txt
new file mode 100644
index 00000000000..9ae0b58af66
--- /dev/null
+++ b/plugin/versioning/CMakeLists.txt
@@ -0,0 +1,17 @@
+# Copyright (c) 2016, MariaDB corporation. All rights reserved.
+# 
+# This program 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; version 2 of the License.
+# 
+# This program 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 this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+
+MYSQL_ADD_PLUGIN(versioning versioning.cc
+  MODULE_ONLY MODULE_OUTPUT_NAME "versioning" COMPONENT Test)
diff --git a/plugin/versioning/versioning.cc b/plugin/versioning/versioning.cc
new file mode 100644
index 00000000000..44faf85aef7
--- /dev/null
+++ b/plugin/versioning/versioning.cc
@@ -0,0 +1,69 @@
+/* Copyright (c) 2016, MariaDB corporation. All rights
+   reserved.
+
+   This program 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; version 2 of the License.
+
+   This program 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 this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA */
+
+#include <mysql_version.h>
+#include <mysqld.h>
+#include "sql_plugin.h"                         // st_plugin_int
+
+/*
+  Disable __attribute__() on non-gcc compilers.
+*/
+#if !defined(__attribute__) && !defined(__GNUC__)
+#define __attribute__(A)
+#endif
+
+static int forced_versioning_init(void *p __attribute__ ((unused)))
+{
+
+  DBUG_ENTER("forced_versioning_init");
+  vers_force= true;
+  vers_hide= true;
+  DBUG_RETURN(0);
+}
+
+static int forced_versioning_deinit(void *p __attribute__ ((unused)))
+{
+  DBUG_ENTER("forced_versioning_deinit");
+  vers_force= false;
+  vers_hide= false;
+  DBUG_RETURN(0);
+}
+
+
+struct st_mysql_daemon forced_versioning_plugin=
+{ MYSQL_DAEMON_INTERFACE_VERSION  };
+
+/*
+  Plugin library descriptor
+*/
+
+maria_declare_plugin(forced_versioning)
+{
+  MYSQL_DAEMON_PLUGIN,
+  &forced_versioning_plugin,
+  "forced_versioning",
+  "Natsys Lab",
+  "Enable System Vesioning for all newly created tables",
+  PLUGIN_LICENSE_GPL,
+  forced_versioning_init, /* Plugin Init */
+  forced_versioning_deinit, /* Plugin Deinit */
+  0x0100 /* 1.0 */,
+  NULL,                       /* status variables                */
+  NULL,                       /* system variables                */
+  "1.0",                      /* string version */
+  MariaDB_PLUGIN_MATURITY_EXPERIMENTAL /* maturity */
+}
+maria_declare_plugin_end;