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Cleanup: Remove some unused functions

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This commit is contained in:
Marko Mäkelä
2022-03-30 15:57:08 +03:00
parent bdba1d46bb
commit 35425cfc55
4 changed files with 4 additions and 279 deletions
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189
sql/handler.cc
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@ -1,5 +1,5 @@
/* Copyright (c) 2000, 2016, Oracle and/or its affiliates.
Copyright (c) 2009, 2018, MariaDB Corporation.
Copyright (c) 2009, 2022, MariaDB Corporation.
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
@ -2531,11 +2531,6 @@ double handler::keyread_time(uint index, uint ranges, ha_rows rows)
len*rows/(stats.block_size+1)/TIME_FOR_COMPARE ;
}
void **handler::ha_data(THD *thd) const
{
return thd_ha_data(thd, ht);
}
THD *handler::ha_thd(void) const
{
DBUG_ASSERT(!table || !table->in_use || table->in_use == current_thd);
@ -6271,17 +6266,6 @@ void handler::unlock_shared_ha_data()
mysql_mutex_unlock(&table_share->LOCK_ha_data);
}
/** @brief
Dummy function which accept information about log files which is not need
by handlers
*/
void signal_log_not_needed(struct handlerton, char *log_file)
{
DBUG_ENTER("signal_log_not_needed");
DBUG_PRINT("enter", ("logfile '%s'", log_file));
DBUG_VOID_RETURN;
}
void handler::set_lock_type(enum thr_lock_type lock)
{
table->reginfo.lock_type= lock;
@ -6384,177 +6368,6 @@ void ha_fake_trx_id(THD *thd)
#endif /* WITH_WSREP */
#ifdef TRANS_LOG_MGM_EXAMPLE_CODE
/*
Example of transaction log management functions based on assumption that logs
placed into a directory
*/
#include <my_dir.h>
#include <my_sys.h>
int example_of_iterator_using_for_logs_cleanup(handlerton *hton)
{
void *buffer;
int res= 1;
struct handler_iterator iterator;
struct handler_log_file_data data;
if (!hton->create_iterator)
return 1; /* iterator creator is not supported */
if ((*hton->create_iterator)(hton, HA_TRANSACTLOG_ITERATOR, &iterator) !=
HA_ITERATOR_OK)
{
/* error during creation of log iterator or iterator is not supported */
return 1;
}
while((*iterator.next)(&iterator, (void*)&data) == 0)
{
printf("%s\n", data.filename.str);
if (data.status == HA_LOG_STATUS_FREE &&
mysql_file_delete(INSTRUMENT_ME,
data.filename.str, MYF(MY_WME)))
goto err;
}
res= 0;
err:
(*iterator.destroy)(&iterator);
return res;
}
/*
Here we should get info from handler where it save logs but here is
just example, so we use constant.
IMHO FN_ROOTDIR ("/") is safe enough for example, because nobody has
rights on it except root and it consist of directories only at lest for
*nix (sorry, can't find windows-safe solution here, but it is only example).
*/
#define fl_dir FN_ROOTDIR
/** @brief
Dummy function to return log status should be replaced by function which
really detect the log status and check that the file is a log of this
handler.
*/
enum log_status fl_get_log_status(char *log)
{
MY_STAT stat_buff;
if (mysql_file_stat(INSTRUMENT_ME, log, &stat_buff, MYF(0)))
return HA_LOG_STATUS_INUSE;
return HA_LOG_STATUS_NOSUCHLOG;
}
struct fl_buff
{
LEX_STRING *names;
enum log_status *statuses;
uint32 entries;
uint32 current;
};
int fl_log_iterator_next(struct handler_iterator *iterator,
void *iterator_object)
{
struct fl_buff *buff= (struct fl_buff *)iterator->buffer;
struct handler_log_file_data *data=
(struct handler_log_file_data *) iterator_object;
if (buff->current >= buff->entries)
return 1;
data->filename= buff->names[buff->current];
data->status= buff->statuses[buff->current];
buff->current++;
return 0;
}
void fl_log_iterator_destroy(struct handler_iterator *iterator)
{
my_free(iterator->buffer);
}
/** @brief
returns buffer, to be assigned in handler_iterator struct
*/
enum handler_create_iterator_result
fl_log_iterator_buffer_init(struct handler_iterator *iterator)
{
MY_DIR *dirp;
struct fl_buff *buff;
char *name_ptr;
uchar *ptr;
FILEINFO *file;
uint32 i;
/* to be able to make my_free without crash in case of error */
iterator->buffer= 0;
if (!(dirp = my_dir(fl_dir, MYF(MY_THREAD_SPECIFIC))))
{
return HA_ITERATOR_ERROR;
}
if ((ptr= (uchar*)my_malloc(ALIGN_SIZE(sizeof(fl_buff)) +
((ALIGN_SIZE(sizeof(LEX_STRING)) +
sizeof(enum log_status) +
+ FN_REFLEN + 1) *
(uint) dirp->number_off_files),
MYF(MY_THREAD_SPECIFIC))) == 0)
{
return HA_ITERATOR_ERROR;
}
buff= (struct fl_buff *)ptr;
buff->entries= buff->current= 0;
ptr= ptr + (ALIGN_SIZE(sizeof(fl_buff)));
buff->names= (LEX_STRING*) (ptr);
ptr= ptr + ((ALIGN_SIZE(sizeof(LEX_STRING)) *
(uint) dirp->number_off_files));
buff->statuses= (enum log_status *)(ptr);
name_ptr= (char *)(ptr + (sizeof(enum log_status) *
(uint) dirp->number_off_files));
for (i=0 ; i < (uint) dirp->number_off_files ; i++)
{
enum log_status st;
file= dirp->dir_entry + i;
if ((file->name[0] == '.' &&
((file->name[1] == '.' && file->name[2] == '\0') ||
file->name[1] == '\0')))
continue;
if ((st= fl_get_log_status(file->name)) == HA_LOG_STATUS_NOSUCHLOG)
continue;
name_ptr= strxnmov(buff->names[buff->entries].str= name_ptr,
FN_REFLEN, fl_dir, file->name, NullS);
buff->names[buff->entries].length= (name_ptr -
buff->names[buff->entries].str);
buff->statuses[buff->entries]= st;
buff->entries++;
}
iterator->buffer= buff;
iterator->next= &fl_log_iterator_next;
iterator->destroy= &fl_log_iterator_destroy;
my_dirend(dirp);
return HA_ITERATOR_OK;
}
/* An example of a iterator creator */
enum handler_create_iterator_result
fl_create_iterator(enum handler_iterator_type type,
struct handler_iterator *iterator)
{
switch(type) {
case HA_TRANSACTLOG_ITERATOR:
return fl_log_iterator_buffer_init(iterator);
default:
return HA_ITERATOR_UNSUPPORTED;
}
}
#endif /*TRANS_LOG_MGM_EXAMPLE_CODE*/
bool HA_CREATE_INFO::check_conflicting_charset_declarations(CHARSET_INFO *cs)
{
if ((used_fields & HA_CREATE_USED_DEFAULT_CHARSET) &&