mariabackup: rename encryption_plugin -> xb_plugin

because plugin code is not only about encryption anymore
(also loads provider plugins), and xb_ prefix prevents name
clashes with the server code (that mariabackup links with).

Author: vuvova

extra/mariabackup/CMakeLists.txt

@@ -68,7 +68,7 @@ MYSQL_ADD_EXECUTABLE(mariadb-backup
   xbstream_write.cc
   backup_mysql.cc
   backup_copy.cc
-  encryption_plugin.cc
+  xb_plugin.cc
   ${PROJECT_BINARY_DIR}/sql/sql_builtin.cc
   ${PROJECT_SOURCE_DIR}/sql/net_serv.cc
   ${PROJECT_SOURCE_DIR}/libmysqld/libmysql.c

extra/mariabackup/backup_mysql.cc

@@ -54,7 +54,7 @@ Street, Fifth Floor, Boston, MA 02110-1335 USA
 #include "backup_copy.h"
 #include "backup_mysql.h"
 #include "mysqld.h"
-#include "encryption_plugin.h"
+#include "xb_plugin.h"
 #include <sstream>
 #include <sql_error.h>
 #include "page0zip.h"
@@ -1621,7 +1621,7 @@ bool write_backup_config_file()
 			"innodb_buffer_pool_filename=" : "",
 		innobase_buffer_pool_filename ?
 			innobase_buffer_pool_filename : "",
-		encryption_plugin_get_config());
+		xb_plugin_get_config());
 		return rc;
 }
 

extra/mariabackup/encryption_plugin.h

@@ -17,7 +17,7 @@
 #include <mysqld.h>
 #include <mysql.h>
 #include <xtrabackup.h>
-#include <encryption_plugin.h>
+#include <xb_plugin.h>
 #include <sql_plugin.h>
 #include <sstream>
 #include <vector>
@@ -28,7 +28,7 @@
 
 extern struct st_maria_plugin *mysql_optional_plugins[];
 extern struct st_maria_plugin *mysql_mandatory_plugins[];
-static void encryption_plugin_init(int argc, char **argv);
+static void xb_plugin_init(int argc, char **argv);
 
 extern char *xb_plugin_load;
 extern char *xb_plugin_dir;
@@ -42,7 +42,7 @@ const char *QUERY_PLUGIN =
 " OR (plugin_type = 'DAEMON' AND plugin_name LIKE 'provider\\_%')"
 " AND plugin_status='ACTIVE'";
 
-std::string encryption_plugin_config;
+std::string xb_plugin_config;
 
 static void add_to_plugin_load_list(const char *plugin_def)
 {
@@ -55,7 +55,7 @@ static char XTRABACKUP_EXE[] = "xtrabackup";
   Read "plugin-load" value from backup-my.cnf during prepare phase.
   The value is stored during backup phase.
 */
-static std::string get_encryption_plugin_from_cnf(const char *dir)
+static std::string get_plugin_from_cnf(const char *dir)
 {
   std::string path = dir + std::string("/backup-my.cnf");
   FILE *f = fopen(path.c_str(), "r");
@@ -80,7 +80,7 @@ static std::string get_encryption_plugin_from_cnf(const char *dir)
 }
 
 
-void encryption_plugin_backup_init(MYSQL *mysql)
+void xb_plugin_backup_init(MYSQL *mysql)
 {
   MYSQL_RES *result;
   MYSQL_ROW row;
@@ -163,7 +163,7 @@ void encryption_plugin_backup_init(MYSQL *mysql)
     mysql_free_result(result);
   }
 
-  encryption_plugin_config = oss.str();
+  xb_plugin_config = oss.str();
 
   argc = 0;
   argv[argc++] = XTRABACKUP_EXE;
@@ -175,20 +175,20 @@ void encryption_plugin_backup_init(MYSQL *mysql)
   }
   argv[argc] = 0;
 
-  encryption_plugin_init(argc, argv);
+  xb_plugin_init(argc, argv);
 }
 
-const char *encryption_plugin_get_config()
+const char *xb_plugin_get_config()
 {
-  return encryption_plugin_config.c_str();
+  return xb_plugin_config.c_str();
 }
 
 extern int finalize_encryption_plugin(st_plugin_int *plugin);
 
 
-void encryption_plugin_prepare_init(int argc, char **argv, const char *dir)
+void xb_plugin_prepare_init(int argc, char **argv, const char *dir)
 {
-  std::string plugin_load= get_encryption_plugin_from_cnf(dir ? dir : ".");
+  std::string plugin_load= get_plugin_from_cnf(dir ? dir : ".");
   if (plugin_load.size())
   {
     msg("Loading plugins from %s", plugin_load.c_str());
@@ -211,12 +211,12 @@ void encryption_plugin_prepare_init(int argc, char **argv, const char *dir)
   new_argv[0] = XTRABACKUP_EXE;
   memcpy(&new_argv[1], argv, argc*sizeof(char *));
 
-  encryption_plugin_init(argc+1, new_argv);
+  xb_plugin_init(argc+1, new_argv);
 
   delete[] new_argv;
 }
 
-static void encryption_plugin_init(int argc, char **argv)
+static void xb_plugin_init(int argc, char **argv)
 {
   /* Patch optional and mandatory plugins, we only need to load the one in xb_plugin_load. */
   mysql_optional_plugins[0] = mysql_mandatory_plugins[0] = 0;

extra/mariabackup/encryption_plugin.cc renamed to extra/mariabackup/xb_plugin.cc

@@ -0,0 +1,5 @@
+#include <mysql.h>
+#include <string>
+extern void xb_plugin_backup_init(MYSQL *mysql);
+extern const char* xb_plugin_get_config();
+extern void xb_plugin_prepare_init(int argc, char **argv, const char *dir);

extra/mariabackup/xb_plugin.h

@@ -106,7 +106,7 @@ Street, Fifth Floor, Boston, MA 02110-1335 USA
 #include "backup_mysql.h"
 #include "backup_copy.h"
 #include "backup_mysql.h"
-#include "encryption_plugin.h"
+#include "xb_plugin.h"
 #include <sql_plugin.h>
 #include <srv0srv.h>
 #include <log.h>
@@ -4391,7 +4391,7 @@ static bool xtrabackup_backup_func()
 		return(false);
 	}
 	msg("cd to %s", mysql_real_data_home);
-	encryption_plugin_backup_init(mysql_connection);
+	xb_plugin_backup_init(mysql_connection);
 	msg("open files limit requested %lu, set to %lu",
 	    xb_open_files_limit,
 	    xb_set_max_open_files(xb_open_files_limit));
@@ -5774,7 +5774,7 @@ static bool xtrabackup_prepare_func(char** argv)
 	}
 
 	int argc; for (argc = 0; argv[argc]; argc++) {}
-	encryption_plugin_prepare_init(argc, argv, xtrabackup_incremental_dir);
+	xb_plugin_prepare_init(argc, argv, xtrabackup_incremental_dir);
 
 	xtrabackup_target_dir= mysql_data_home_buff;
 	xtrabackup_target_dir[0]=FN_CURLIB;		// all paths are relative from here