WL#3201

  " Configure support for server plugins "


storage/blackhole/ha_blackhole.h:
  Rename: sql/ha_blackhole.h -> storage/blackhole/ha_blackhole.h
BitKeeper/deleted/.del-storage.m4~24bf2fffdaa328ad:
  Delete: config/ac-macros/storage.m4
BitKeeper/deleted/.del-ha_archive.m4~a07fac7110b39294:
  Delete: config/ac-macros/ha_archive.m4
BitKeeper/deleted/.del-ha_blackhole.m4~8ed06eb91f6420ed:
  Delete: config/ac-macros/ha_blackhole.m4
BitKeeper/deleted/.del-ha_example.m4~1dfb268163297708:
  Delete: config/ac-macros/ha_example.m4
BitKeeper/deleted/.del-ha_federated.m4~7acddd58286acfd6:
  Delete: config/ac-macros/ha_federated.m4
BitKeeper/deleted/.del-ha_innodb.m4~6f141fb5b80c1f39:
  Delete: config/ac-macros/ha_innodb.m4
BitKeeper/deleted/.del-ha_partition.m4~bc57067550be5f89:
  Delete: config/ac-macros/ha_partition.m4
BitKeeper/deleted/.del-ha_tina.m4~f658506ebbc113ca:
  Delete: config/ac-macros/ha_tina.m4
BitKeeper/deleted/.del-handlerton.cc.in~377156e7b06067cc:
  Delete: sql/handlerton.cc.in
BitKeeper/deleted/.del-handlerton-win.cc~322a7e59507976df:
  Delete: sql/handlerton-win.cc
BUILD/SETUP.sh:
  WL#3201
    Changes in configure arguments
Makefile.am:
  WL#3201
    changes in build subst names
config/ac-macros/ha_berkeley.m4:
  WL#3201
    remove unused variable
    Makefile is always made
config/ac-macros/ha_ndbcluster.m4:
  WL#3201
    remove unused variables
    Split big macro
configure.in:
  WL#3201
    out with storage.m4, in with plugins.m4
    change how plugins are declared
    include makefiles, remove handlerton.cc, add sql_builtin.cc
include/mysql/plugin.h:
  WL#3201
    support static and dynamic build - MYSQL_DYNAMIC_PLUGIN
libmysqld/Makefile.am:
  WL#3201
    Storage engine files still left in sql subdir are not conditionally
    compiled. Should move them out soon,
plugin/Makefile.am:
  WL#3201
    update makefile
plugin/fulltext/Makefile.am:
  WL#3201
    update makefile
plugin/fulltext/plugin_example.c:
  WL#3201
    change to mysql_declare_plugin macro
sql/Makefile.am:
  WL#3201
    Storage engine files still left in sql subdir are not conditionally
    compiled. Should move them out soon,
sql/ha_berkeley.cc:
  WL#3201
    make into a plugin
    conditionally compile content
sql/ha_federated.cc:
  WL#3201
    make into a plugin
    conditionally compile content
sql/ha_heap.cc:
  WL#3201
    make into a plugin
sql/ha_innodb.cc:
  WL#3201
    make into a plugin
    conditionally compile content
sql/ha_myisam.cc:
  WL#3201
    make into a plugin
sql/ha_myisammrg.cc:
  WL#3201
    make into a plugin
sql/ha_ndbcluster.cc:
  WL#3201
    make into a plugin
    conditionally compile content
sql/ha_ndbcluster_binlog.cc:
  WL#3201
    make into a plugin
    conditionally compile content
sql/ha_partition.cc:
  WL#3201
    make into a plugin
    conditionally compile content
sql/handler.cc:
  WL#3201
    Simplify how storage engines are found by db_type
    (hopefully we can get rid of it soon)
    Code cleanup
sql/handler.h:
  WL#3201
    new DB_TYPE_FIRST_DYNAMIC
    new func ha_finalize_handlerton()
    remove ha_register_builtin_plugins()
sql/log.cc:
  WL#3201
    make into a plugin
sql/mysqld.cc:
  WL#3201
    remove ha_register_builtin_plugins()
    alter init order so that storage engines are initialized before first use
sql/partition_info.cc:
  WL#3201
    conditionally compile content
sql/sql_delete.cc:
  WL#3201
    conditionally include ha_innodb.h
sql/sql_plugin.cc:
  WL#3201
    All compiled in plugins are in mysqld_builtins[]
    add funcs for plugin finalization
    install builtin plugins on initialization
sql/sql_show.cc:
  WL#3201
    Fix to use plugin_foreach()
sql/sql_yacc.yy:
  WL#3201
    SHOW FULL PLUGIN
storage/archive/Makefile.am:
  WL#3201
    setup as plugin makefile
storage/archive/ha_archive.cc:
  WL#3201
    Convert into a plugin
storage/archive/ha_archive.h:
  WL#3201
    azlib.h now in local dir
storage/blackhole/ha_blackhole.cc:
  WL#3201
    convert into a plugin
storage/csv/Makefile.am:
  WL#3201
    setup as plugin makefile
storage/csv/ha_tina.cc:
  WL#3201
    remove conditional compilation on MYSQL_PLUGIN
    mysql_declare_plugin macro change
storage/example/Makefile.am:
  WL#3201
    fix as new-style plugin makefile
storage/example/ha_example.cc:
  WL#3201
    remove conditional compilation on MYSQL_PLUGIN
    mysql_declare_plugin macro change
storage/innobase/Makefile.am:
  WL#3201
    Lets make life easier and reduce innodb into a single library file
config/ac-macros/plugins.m4:
  New BitKeeper file ``config/ac-macros/plugins.m4''
sql/sql_builtin.cc.in:
  New BitKeeper file ``sql/sql_builtin.cc.in''
storage/blackhole/Makefile.am:
  New BitKeeper file ``storage/blackhole/Makefile.am''

3 files changed, 405 insertions, 0 deletions

diff --git a/storage/blackhole/Makefile.am b/storage/blackhole/Makefile.am
new file mode 100644
index 00000000000..060eaffce66
--- /dev/null
+++ b/storage/blackhole/Makefile.am
@@ -0,0 +1,51 @@
+# Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
+# 
+# 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; either version 2 of the License, or
+# (at your option) any later version.
+# 
+# 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+#called from the top level Makefile
+
+MYSQLDATAdir =          $(localstatedir)
+MYSQLSHAREdir =         $(pkgdatadir)
+MYSQLBASEdir=           $(prefix)
+MYSQLLIBdir=            $(pkglibdir)
+INCLUDES =              -I$(top_srcdir)/include \
+			-I$(top_srcdir)/regex \
+			-I$(top_srcdir)/sql \
+                        -I$(srcdir)
+WRAPLIBS=
+
+LDADD =
+
+DEFS =                  @DEFS@
+
+noinst_HEADERS =	ha_blackhole.h
+
+EXTRA_LTLIBRARIES =	ha_blackhole.la
+pkglib_LTLIBRARIES =	@plugin_blackhole_shared_target@
+ha_blackhole_la_LDFLAGS=-module -rpath $(MYSQLLIBdir)
+ha_blackhole_la_CXXFLAGS=$(AM_CFLAGS) -DMYSQL_DYNAMIC_PLUGIN
+ha_blackhole_la_CFLAGS=	$(AM_CFLAGS) -DMYSQL_DYNAMIC_PLUGIN
+ha_blackhole_la_SOURCES=ha_blackhole.cc
+
+
+EXTRA_LIBRARIES =	libblackhole.a
+noinst_LIBRARIES =	@plugin_blackhole_static_target@
+libblackhole_a_CXXFLAGS=$(AM_CFLAGS)
+libblackhole_a_CFLAGS =	$(AM_CFLAGS)
+libblackhole_a_SOURCES=	ha_blackhole.cc
+
+
+# Don't update the files from bitkeeper
+%::SCCS/s.%
diff --git a/storage/blackhole/ha_blackhole.cc b/storage/blackhole/ha_blackhole.cc
new file mode 100644
index 00000000000..31d0b0c3917
--- /dev/null
+++ b/storage/blackhole/ha_blackhole.cc
@@ -0,0 +1,266 @@
+/* Copyright (C) 2005 MySQL AB
+
+  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; either version 2 of the License, or
+  (at your option) any later version.
+
+  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+
+#ifdef USE_PRAGMA_IMPLEMENTATION
+#pragma implementation				// gcc: Class implementation
+#endif
+
+#include "mysql_priv.h"
+#include "ha_blackhole.h"
+
+#include <mysql/plugin.h>
+
+/* Static declarations for handlerton */
+
+static handler *blackhole_create_handler(TABLE_SHARE *table);
+
+
+/* Blackhole storage engine handlerton */
+
+handlerton blackhole_hton= {
+  MYSQL_HANDLERTON_INTERFACE_VERSION,
+  "BLACKHOLE",
+  SHOW_OPTION_YES,
+  "/dev/null storage engine (anything you write to it disappears)",
+  DB_TYPE_BLACKHOLE_DB,
+  NULL,
+  0,       /* slot */
+  0,       /* savepoint size. */
+  NULL,    /* close_connection */
+  NULL,    /* savepoint */
+  NULL,    /* rollback to savepoint */
+  NULL,    /* release savepoint */
+  NULL,    /* commit */
+  NULL,    /* rollback */
+  NULL,    /* prepare */
+  NULL,    /* recover */
+  NULL,    /* commit_by_xid */
+  NULL,    /* rollback_by_xid */
+  NULL,    /* create_cursor_read_view */
+  NULL,    /* set_cursor_read_view */
+  NULL,    /* close_cursor_read_view */
+  blackhole_create_handler,    /* Create a new handler */
+  NULL,    /* Drop a database */
+  NULL,    /* Panic call */
+  NULL,    /* Start Consistent Snapshot */
+  NULL,    /* Flush logs */
+  NULL,    /* Show status */
+  NULL,    /* Partition flags */
+  NULL,    /* Alter table flags */
+  NULL,    /* Alter Tablespace */
+  NULL,    /* Fill FILES table */
+  HTON_CAN_RECREATE,
+  NULL,    /* binlog_func */
+  NULL,    /* binlog_log_query */
+  NULL	   /* release_temporary_latches */
+};
+
+
+static handler *blackhole_create_handler(TABLE_SHARE *table)
+{
+  return new ha_blackhole(table);
+}
+
+
+/*****************************************************************************
+** BLACKHOLE tables
+*****************************************************************************/
+
+ha_blackhole::ha_blackhole(TABLE_SHARE *table_arg)
+  :handler(&blackhole_hton, table_arg)
+{}
+
+
+static const char *ha_blackhole_exts[] = {
+  NullS
+};
+
+const char **ha_blackhole::bas_ext() const
+{
+  return ha_blackhole_exts;
+}
+
+int ha_blackhole::open(const char *name, int mode, uint test_if_locked)
+{
+  DBUG_ENTER("ha_blackhole::open");
+  thr_lock_init(&thr_lock);
+  thr_lock_data_init(&thr_lock,&lock,NULL);
+  DBUG_RETURN(0);
+}
+
+int ha_blackhole::close(void)
+{
+  DBUG_ENTER("ha_blackhole::close");
+  thr_lock_delete(&thr_lock);
+  DBUG_RETURN(0);
+}
+
+int ha_blackhole::create(const char *name, TABLE *table_arg,
+                         HA_CREATE_INFO *create_info)
+{
+  DBUG_ENTER("ha_blackhole::create");
+  DBUG_RETURN(0);
+}
+
+const char *ha_blackhole::index_type(uint key_number)
+{
+  DBUG_ENTER("ha_blackhole::index_type");
+  DBUG_RETURN((table_share->key_info[key_number].flags & HA_FULLTEXT) ? 
+              "FULLTEXT" :
+              (table_share->key_info[key_number].flags & HA_SPATIAL) ?
+              "SPATIAL" :
+              (table_share->key_info[key_number].algorithm ==
+               HA_KEY_ALG_RTREE) ? "RTREE" : "BTREE");
+}
+
+int ha_blackhole::write_row(byte * buf)
+{
+  DBUG_ENTER("ha_blackhole::write_row");
+  DBUG_RETURN(0);
+}
+
+int ha_blackhole::rnd_init(bool scan)
+{
+  DBUG_ENTER("ha_blackhole::rnd_init");
+  DBUG_RETURN(0);
+}
+
+
+int ha_blackhole::rnd_next(byte *buf)
+{
+  DBUG_ENTER("ha_blackhole::rnd_next");
+  DBUG_RETURN(HA_ERR_END_OF_FILE);
+}
+
+
+int ha_blackhole::rnd_pos(byte * buf, byte *pos)
+{
+  DBUG_ENTER("ha_blackhole::rnd_pos");
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+
+void ha_blackhole::position(const byte *record)
+{
+  DBUG_ENTER("ha_blackhole::position");
+  DBUG_ASSERT(0);
+  DBUG_VOID_RETURN;
+}
+
+
+void ha_blackhole::info(uint flag)
+{
+  DBUG_ENTER("ha_blackhole::info");
+
+  records= 0;
+  deleted= 0;
+  errkey= 0;
+  mean_rec_length= 0;
+  data_file_length= 0;
+  index_file_length= 0;
+  max_data_file_length= 0;
+  delete_length= 0;
+  if (flag & HA_STATUS_AUTO)
+    auto_increment_value= 1;
+  DBUG_VOID_RETURN;
+}
+
+int ha_blackhole::external_lock(THD *thd, int lock_type)
+{
+  DBUG_ENTER("ha_blackhole::external_lock");
+  DBUG_RETURN(0);
+}
+
+
+uint ha_blackhole::lock_count(void) const
+{
+  DBUG_ENTER("ha_blackhole::lock_count");
+  DBUG_RETURN(0);
+}
+
+THR_LOCK_DATA **ha_blackhole::store_lock(THD *thd,
+                                         THR_LOCK_DATA **to,
+                                         enum thr_lock_type lock_type)
+{
+  DBUG_ENTER("ha_blackhole::store_lock");
+  DBUG_RETURN(to);
+}
+
+
+int ha_blackhole::index_read(byte * buf, const byte * key,
+                             uint key_len, enum ha_rkey_function find_flag)
+{
+  DBUG_ENTER("ha_blackhole::index_read");
+  DBUG_RETURN(0);
+}
+
+
+int ha_blackhole::index_read_idx(byte * buf, uint idx, const byte * key,
+                                 uint key_len, enum ha_rkey_function find_flag)
+{
+  DBUG_ENTER("ha_blackhole::index_read_idx");
+  DBUG_RETURN(HA_ERR_END_OF_FILE);
+}
+
+
+int ha_blackhole::index_read_last(byte * buf, const byte * key, uint key_len)
+{
+  DBUG_ENTER("ha_blackhole::index_read_last");
+  DBUG_RETURN(HA_ERR_END_OF_FILE);
+}
+
+
+int ha_blackhole::index_next(byte * buf)
+{
+  DBUG_ENTER("ha_blackhole::index_next");
+  DBUG_RETURN(HA_ERR_END_OF_FILE);
+}
+
+
+int ha_blackhole::index_prev(byte * buf)
+{
+  DBUG_ENTER("ha_blackhole::index_prev");
+  DBUG_RETURN(HA_ERR_END_OF_FILE);
+}
+
+
+int ha_blackhole::index_first(byte * buf)
+{
+  DBUG_ENTER("ha_blackhole::index_first");
+  DBUG_RETURN(HA_ERR_END_OF_FILE);
+}
+
+
+int ha_blackhole::index_last(byte * buf)
+{
+  DBUG_ENTER("ha_blackhole::index_last");
+  DBUG_RETURN(HA_ERR_END_OF_FILE);
+}
+
+mysql_declare_plugin(blackhole)
+{
+  MYSQL_STORAGE_ENGINE_PLUGIN,
+  &blackhole_hton,
+  blackhole_hton.name,
+  "MySQL AB",
+  "Blackhole Storage Engine",
+  NULL, /* Plugin Init */
+  NULL, /* Plugin Deinit */
+  0x0100 /* 1.0 */,
+}
+mysql_declare_plugin_end;
diff --git a/storage/blackhole/ha_blackhole.h b/storage/blackhole/ha_blackhole.h
new file mode 100644
index 00000000000..15e12659aa0
--- /dev/null
+++ b/storage/blackhole/ha_blackhole.h
@@ -0,0 +1,88 @@
+/* Copyright (C) 2005 MySQL AB
+
+  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; either version 2 of the License, or
+  (at your option) any later version.
+
+  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+#ifdef USE_PRAGMA_INTERFACE
+#pragma interface			/* gcc class implementation */
+#endif
+
+/*
+  Class definition for the blackhole storage engine
+  "Dumbest named feature ever"
+*/
+class ha_blackhole: public handler
+{
+  THR_LOCK_DATA lock;      /* MySQL lock */
+  THR_LOCK thr_lock;
+
+public:
+  ha_blackhole(TABLE_SHARE *table_arg);
+  ~ha_blackhole()
+  {
+  }
+  /* The name that will be used for display purposes */
+  const char *table_type() const { return "BLACKHOLE"; }
+  /*
+    The name of the index type that will be used for display
+    don't implement this method unless you really have indexes
+  */
+  const char *index_type(uint key_number);
+  const char **bas_ext() const;
+  ulong table_flags() const
+  {
+    return(HA_NULL_IN_KEY | HA_CAN_FULLTEXT | HA_CAN_SQL_HANDLER |
+           HA_DUPP_POS | HA_CAN_INDEX_BLOBS | HA_AUTO_PART_KEY |
+           HA_FILE_BASED | HA_CAN_GEOMETRY | HA_READ_RND_SAME |
+           HA_CAN_INSERT_DELAYED);
+  }
+  ulong index_flags(uint inx, uint part, bool all_parts) const
+  {
+    return ((table_share->key_info[inx].algorithm == HA_KEY_ALG_FULLTEXT) ?
+            0 : HA_READ_NEXT | HA_READ_PREV | HA_READ_RANGE |
+            HA_READ_ORDER | HA_KEYREAD_ONLY);
+  }
+  /* The following defines can be increased if necessary */
+#define BLACKHOLE_MAX_KEY	64		/* Max allowed keys */
+#define BLACKHOLE_MAX_KEY_SEG	16		/* Max segments for key */
+#define BLACKHOLE_MAX_KEY_LENGTH 1000
+  uint max_supported_keys()          const { return BLACKHOLE_MAX_KEY; }
+  uint max_supported_key_length()    const { return BLACKHOLE_MAX_KEY_LENGTH; }
+  uint max_supported_key_part_length() const { return BLACKHOLE_MAX_KEY_LENGTH; }
+  int open(const char *name, int mode, uint test_if_locked);
+  int close(void);
+  int write_row(byte * buf);
+  int rnd_init(bool scan);
+  int rnd_next(byte *buf);
+  int rnd_pos(byte * buf, byte *pos);
+  int index_read(byte * buf, const byte * key,
+                 uint key_len, enum ha_rkey_function find_flag);
+  int index_read_idx(byte * buf, uint idx, const byte * key,
+                     uint key_len, enum ha_rkey_function find_flag);
+  int index_read_last(byte * buf, const byte * key, uint key_len);
+  int index_next(byte * buf);
+  int index_prev(byte * buf);
+  int index_first(byte * buf);
+  int index_last(byte * buf);
+  void position(const byte *record);
+  void info(uint flag);
+  int external_lock(THD *thd, int lock_type);
+  uint lock_count(void) const;
+  int create(const char *name, TABLE *table_arg,
+             HA_CREATE_INFO *create_info);
+  THR_LOCK_DATA **store_lock(THD *thd,
+                             THR_LOCK_DATA **to,
+                             enum thr_lock_type lock_type);
+  bool has_transactions() { return 1; }
+};