~drizzle-trunk/drizzle/development : contents of plugin/hello_world/hello

~drizzle-trunk/drizzle/development : (revision 670.1.20)

/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
 *
 *  Copyright (C) 2008 Sun Microsystems
 *
 *  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 <drizzled/server_includes.h>
#include <drizzled/sql_udf.h>
#include <drizzled/item/func.h>
#include <drizzled/function/str/strfunc.h>

class Item_func_hello_world : public Item_str_func
{
public:
  const char *func_name() const { return "hello_world"; }
  String *val_str(String* s) {
    s->set(STRING_WITH_LEN("Hello World!"),system_charset_info);
    return s;
  };
  void fix_length_and_dec() {
    max_length=strlen("Hello World!");
  }
};

Item_func* create_hello_world_udf_item(MEM_ROOT* m)
{
  return  new (m) Item_func_hello_world();
}

static struct udf_func hello_world_udf = {
  { C_STRING_WITH_LEN("hello_world") },
  create_hello_world_udf_item
};

static int hello_world_plugin_init(void *p)
{
  udf_func **f = (udf_func**) p;

  *f= &hello_world_udf;

  return 0;
}

static int hello_world_plugin_deinit(void *p)
{
  udf_func *udff = (udf_func *) p;
  (void)udff;
  return 0;
}


mysql_declare_plugin(hello_world)
{
  DRIZZLE_UDF_PLUGIN,
  "hello_world",
  "1.0",
  "Mark Atwood",
  "Hello, world!",
  PLUGIN_LICENSE_GPL,
  hello_world_plugin_init, /* Plugin Init */
  hello_world_plugin_deinit, /* Plugin Deinit */
  NULL,   /* status variables */
  NULL,   /* system variables */
  NULL    /* config options */
}
mysql_declare_plugin_end;

584.1.15 by Monty Taylor The mega-patch from hell. Renamed sql_class to session (since that's what it is) and removed it and field and table from common_includes.	1	/* -- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; --
	2	* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
	3	*
	4	* Copyright (C) 2008 Sun Microsystems
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; version 2 of the License.
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program; if not, write to the Free Software
	17	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	18	*/
134.1.2 by Mark Atwood Add hello_world() UDF	19
670.2.2 by Monty Taylor Got rid of the rest of common_includes. Now on to server_includes.	20	#include <drizzled/server_includes.h>
584.1.15 by Monty Taylor The mega-patch from hell. Renamed sql_class to session (since that's what it is) and removed it and field and table from common_includes.	21	#include <drizzled/sql_udf.h>
584.4.6 by Monty Taylor Moved stuff into item/	22	#include <drizzled/item/func.h>
670.1.20 by Monty Taylor Renamed functions to function... everything else is singular.	23	#include <drizzled/function/str/strfunc.h>
134.1.2 by Mark Atwood Add hello_world() UDF	24
139.1.8 by Stewart Smith UDFs are now normal Item_func objects. Simplifies handling them a lot.	25	class Item_func_hello_world : public Item_str_func
134.1.2 by Mark Atwood Add hello_world() UDF	26	{
139.1.8 by Stewart Smith UDFs are now normal Item_func objects. Simplifies handling them a lot.	27	public:
	28	const char *func_name() const { return "hello_world"; }
	29	String val_str(String s) {
	30	s->set(STRING_WITH_LEN("Hello World!"),system_charset_info);
	31	return s;
	32	};
	33	void fix_length_and_dec() {
	34	max_length=strlen("Hello World!");
134.1.2 by Mark Atwood Add hello_world() UDF	35	}
139.1.8 by Stewart Smith UDFs are now normal Item_func objects. Simplifies handling them a lot.	36	};
	37
	38	Item_func* create_hello_world_udf_item(MEM_ROOT* m)
	39	{
	40	return new (m) Item_func_hello_world();
	41	}
	42
	43	static struct udf_func hello_world_udf = {
	44	{ C_STRING_WITH_LEN("hello_world") },
	45	create_hello_world_udf_item
	46	};
134.1.2 by Mark Atwood Add hello_world() UDF	47
	48	static int hello_world_plugin_init(void *p)
	49	{
139.1.8 by Stewart Smith UDFs are now normal Item_func objects. Simplifies handling them a lot.	50	udf_func f = (udf_func) p;
134.1.2 by Mark Atwood Add hello_world() UDF	51
139.1.8 by Stewart Smith UDFs are now normal Item_func objects. Simplifies handling them a lot.	52	*f= &hello_world_udf;
134.1.2 by Mark Atwood Add hello_world() UDF	53
	54	return 0;
	55	}
	56
	57	static int hello_world_plugin_deinit(void *p)
	58	{
139.1.8 by Stewart Smith UDFs are now normal Item_func objects. Simplifies handling them a lot.	59	udf_func udff = (udf_func ) p;
	60	(void)udff;
134.1.2 by Mark Atwood Add hello_world() UDF	61	return 0;
	62	}
	63
139.1.8 by Stewart Smith UDFs are now normal Item_func objects. Simplifies handling them a lot.	64
134.1.2 by Mark Atwood Add hello_world() UDF	65	mysql_declare_plugin(hello_world)
134.1.2 by Mark Atwood Add hello_world() UDF	66	{
319.1.1 by Grant Limberg renamed all instances of MYSQL_ to DRIZZLE_	67	DRIZZLE_UDF_PLUGIN,
134.1.2 by Mark Atwood Add hello_world() UDF	68	"hello_world",
177.4.3 by mark ripped out more plugin ABI and API version checking, and plugin versions are now strings	69	"1.0",
134.1.2 by Mark Atwood Add hello_world() UDF	70	"Mark Atwood",
	71	"Hello, world!",
	72	PLUGIN_LICENSE_GPL,
	73	hello_world_plugin_init, /* Plugin Init */
	74	hello_world_plugin_deinit, /* Plugin Deinit */
	75	NULL, /* status variables */
	76	NULL, /* system variables */
	77	NULL /* config options */
	78	}
	79	mysql_declare_plugin_end;