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Add support for Gemini table handler, Monty has checked and approved

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Fix bug when read return error
This commit is contained in:
mikef@nslinux.bedford.progress.com
2001-03-21 15:34:16 -05:00
parent 3c48448042
commit d145a6b97e
24 changed files with 3946 additions and 24 deletions
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73
sql/handler.cc
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@@ -35,6 +35,9 @@
#ifdef HAVE_INNOBASE_DB
#include "ha_innobase.h"
#endif
#ifdef HAVE_GEMINI_DB
#include "ha_gemini.h"
#endif
#include <myisampack.h>
#include <errno.h>
@@ -49,7 +52,7 @@ ulong ha_read_count, ha_write_count, ha_delete_count, ha_update_count,
const char *ha_table_type[] = {
"", "DIAB_ISAM","HASH","MISAM","PISAM","RMS_ISAM","HEAP", "ISAM",
"MRG_ISAM","MYISAM", "MRG_MYISAM", "BDB", "INNOBASE", "?", "?",NullS
"MRG_ISAM","MYISAM", "MRG_MYISAM", "BDB", "INNOBASE", "GEMINI", "?", "?",NullS
};
const char *ha_row_type[] = {
@@ -77,6 +80,10 @@ enum db_type ha_checktype(enum db_type database_type)
case DB_TYPE_INNOBASE:
return(innobase_skip ? DB_TYPE_MYISAM : database_type);
#endif
#ifdef HAVE_GEMINI_DB
case DB_TYPE_GEMINI:
return(gemini_skip ? DB_TYPE_MYISAM : database_type);
#endif
#ifndef NO_HASH
case DB_TYPE_HASH:
#endif
@@ -118,6 +125,10 @@ handler *get_new_handler(TABLE *table, enum db_type db_type)
#ifdef HAVE_INNOBASE_DB
case DB_TYPE_INNOBASE:
return new ha_innobase(table);
#endif
#ifdef HAVE_GEMINI_DB
case DB_TYPE_GEMINI:
return new ha_gemini(table);
#endif
case DB_TYPE_HEAP:
return new ha_heap(table);
@@ -149,6 +160,15 @@ int ha_init()
if (!innobase_skip) // If we couldn't use handler
opt_using_transactions=1;
}
#endif
#ifdef HAVE_GEMINI_DB
if (!gemini_skip)
{
if (gemini_init())
return -1;
if (!gemini_skip) // If we couldn't use handler
opt_using_transactions=1;
}
#endif
return 0;
}
@@ -176,6 +196,10 @@ int ha_panic(enum ha_panic_function flag)
#ifdef HAVE_INNOBASE_DB
if (!innobase_skip)
error|=innobase_end();
#endif
#ifdef HAVE_GEMINI_DB
if (!gemini_skip)
error|=gemini_end();
#endif
return error;
} /* ha_panic */
@@ -187,6 +211,12 @@ void ha_close_connection(THD* thd)
if (!innobase_skip)
innobase_close_connection(thd);
#endif
#ifdef HAVE_GEMINI_DB
if (!gemini_skip && thd->gemini.context)
{
gemini_disconnect(thd);
}
#endif /* HAVE_GEMINI_DB */
}
/*
@@ -250,6 +280,20 @@ int ha_commit_trans(THD *thd, THD_TRANS* trans)
error=1;
}
}
#endif
#ifdef HAVE_GEMINI_DB
/* Commit the transaction in behalf of the commit statement
or if we're in auto-commit mode */
if((trans == &thd->transaction.all) ||
(!(thd->options & (OPTION_NOT_AUTO_COMMIT | OPTION_BEGIN))))
{
error=gemini_commit(thd);
if (error)
{
my_error(ER_ERROR_DURING_COMMIT, MYF(0), error);
error=1;
}
}
#endif
if (error && trans == &thd->transaction.all && mysql_bin_log.is_open())
sql_print_error("Error: Got error during commit; Binlog is not up to date!");
@@ -287,6 +331,18 @@ int ha_rollback_trans(THD *thd, THD_TRANS *trans)
error=1;
}
}
#endif
#ifdef HAVE_GEMINI_DB
if((trans == &thd->transaction.stmt) &&
(thd->options & (OPTION_NOT_AUTO_COMMIT | OPTION_BEGIN)))
error = gemini_rollback_to_savepoint(thd);
else
error=gemini_rollback(thd);
if (error)
{
my_error(ER_ERROR_DURING_ROLLBACK, MYF(0), error);
error=1;
}
#endif
if (trans == &thd->transaction.all)
reinit_io_cache(&thd->transaction.trans_log,
@@ -678,6 +734,21 @@ int handler::rename_table(const char * from, const char * to)
DBUG_RETURN(0);
}
int ha_commit_rename(THD *thd)
{
int error=0;
#ifdef HAVE_GEMINI_DB
/* Gemini needs to commit the rename; otherwise a rollback will change
** the table names back internally but the physical files will still
** have the new names.
*/
if (ha_commit_stmt(thd))
error= -1;
if (ha_commit(thd))
error= -1;
#endif
return error;
}
int handler::index_next_same(byte *buf, const byte *key, uint keylen)
{