WL#2936 - Falcon & MySQL plugin interface: server variables

Added initialization for the plugin structure created in
plugin_add().
Made a correct argument vector in mysql_install_plugin():
handle_options() assumes that arg0 (program name) always exists.


mysys/my_getopt.c:
  WL#2936 - Falcon & MySQL plugin interface: server variables
  Added DBUG_ASSERTs. handle_options() assumes that arg0
  (program name) always exists.
plugin/fulltext/plugin_example.c:
  WL#2936 - Falcon & MySQL plugin interface: server variables
  Extended the fulltext parser example plugin with system variables.

1 files changed, 25 insertions, 2 deletions

diff --git a/plugin/fulltext/plugin_example.c b/plugin/fulltext/plugin_example.c
index c38498fb9e8..67c16a91268 100644
--- a/plugin/fulltext/plugin_example.c
+++ b/plugin/fulltext/plugin_example.c
@@ -216,6 +216,29 @@ static struct st_mysql_show_var simple_status[]=
 };
 
 /*
+  Plugin system variables.
+*/
+
+static long     sysvar_one_value;
+static char     *sysvar_two_value;
+
+static MYSQL_SYSVAR_LONG(simple_sysvar_one, sysvar_one_value,
+  PLUGIN_VAR_RQCMDARG,
+  "Simple fulltext parser example system variable number one. Give a number.",
+  NULL, NULL, 100L, 10L, ~0L, 0);
+
+static MYSQL_SYSVAR_STR(simple_sysvar_two, sysvar_two_value,
+  PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_MEMALLOC,
+  "Simple fulltext parser example system variable number two. Give a string.",
+  NULL, NULL, NULL);
+
+static struct st_mysql_sys_var* simple_system_variables[]= {
+  MYSQL_SYSVAR(simple_sysvar_one),
+  MYSQL_SYSVAR(simple_sysvar_two),
+  NULL
+};
+
+/*
   Plugin library descriptor
 */
 
@@ -231,8 +254,8 @@ mysql_declare_plugin(ftexample)
   simple_parser_plugin_deinit,/* deinit function (when unloaded) */
   0x0001,                     /* version                         */
   simple_status,              /* status variables                */
-  NULL,                       /* system variables                */
-  NULL                        /* config options                  */
+  simple_system_variables,    /* system variables                */
+  NULL
 }
 mysql_declare_plugin_end;