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/* 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 */
/* Write some debug info */
#include "mysql_priv.h"
#include "sql_select.h"
#include <hash.h>
/* Intern key cache variables */
extern "C" pthread_mutex_t THR_LOCK_keycache;
#ifndef DBUG_OFF
void
print_where(COND *cond,const char *info)
{
if (cond)
{
char buff[256];
String str(buff,(uint32) sizeof(buff));
str.length(0);
cond->print(&str);
str.append('\0');
DBUG_LOCK_FILE;
(void) fprintf(DBUG_FILE,"\nWHERE:(%s) ",info);
(void) fputs(str.ptr(),DBUG_FILE);
(void) fputc('\n',DBUG_FILE);
DBUG_UNLOCK_FILE;
}
}
/* This is for debugging purposes */
extern HASH open_cache;
extern TABLE *unused_tables;
void print_cached_tables(void)
{
uint idx,count,unused;
TABLE *start_link,*lnk;
VOID(pthread_mutex_lock(&LOCK_open));
puts("DB Table Version Thread L.thread Open");
for (idx=unused=0 ; idx < open_cache.records ; idx++)
{
TABLE *entry=(TABLE*) hash_element(&open_cache,idx);
printf("%-14.14s %-32s%6ld%8ld%10ld%6d\n",
entry->table_cache_key,entry->real_name,entry->version,
entry->in_use ? entry->in_use->thread_id : 0L,
entry->in_use ? entry->in_use->dbug_thread_id : 0L,
entry->db_stat ? 1 : 0);
if (!entry->in_use)
unused++;
}
count=0;
if ((start_link=lnk=unused_tables))
{
do
{
if (lnk != lnk->next->prev || lnk != lnk->prev->next)
{
printf("unused_links isn't linked properly\n");
return;
}
} while (count++ < open_cache.records && (lnk=lnk->next) != start_link);
if (lnk != start_link)
{
printf("Unused_links aren't connected\n");
}
}
if (count != unused)
printf("Unused_links (%d) doesn't match open_cache: %d\n", count,unused);
printf("\nCurrent refresh version: %ld\n",refresh_version);
if (hash_check(&open_cache))
printf("Error: File hash table is corrupted\n");
fflush(stdout);
VOID(pthread_mutex_unlock(&LOCK_open));
return;
}
void TEST_filesort(TABLE **table,SORT_FIELD *sortorder,uint s_length,
ha_rows special)
{
char buff[256],buff2[256];
String str(buff,sizeof(buff)),out(buff2,sizeof(buff2));
const char *sep;
DBUG_ENTER("TEST_filesort");
out.length(0);
for (sep=""; s_length-- ; sortorder++, sep=" ")
{
out.append(sep);
if (sortorder->reverse)
out.append('-');
if (sortorder->field)
{
if (sortorder->field->table_name)
{
out.append(sortorder->field->table_name);
out.append('.');
}
out.append(sortorder->field->field_name ? sortorder->field->field_name:
"tmp_table_column");
}
else
{
str.length(0);
sortorder->item->print(&str);
out.append(str);
}
}
out.append('\0'); // Purify doesn't like c_ptr()
DBUG_LOCK_FILE;
VOID(fputs("\nInfo about FILESORT\n",DBUG_FILE));
if (special)
fprintf(DBUG_FILE,"Records to sort: %ld\n",special);
fprintf(DBUG_FILE,"Sortorder: %s\n",out.ptr());
DBUG_UNLOCK_FILE;
DBUG_VOID_RETURN;
}
void
TEST_join(JOIN *join)
{
uint i,ref;
DBUG_ENTER("TEST_join");
DBUG_LOCK_FILE;
VOID(fputs("\nInfo about JOIN\n",DBUG_FILE));
for (i=0 ; i < join->tables ; i++)
{
JOIN_TAB *tab=join->join_tab+i;
TABLE *form=tab->table;
fprintf(DBUG_FILE,"%-16.16s type: %-7s q_keys: %4d refs: %d key: %d len: %d\n",
form->table_name,
join_type_str[tab->type],
tab->keys,
tab->ref.key_parts,
tab->ref.key,
tab->ref.key_length);
if (tab->select)
{
if (tab->use_quick == 2)
fprintf(DBUG_FILE,
" quick select checked for each record (keys: %d)\n",
(int) tab->select->quick_keys);
else if (tab->select->quick)
fprintf(DBUG_FILE," quick select used on key %s, length: %d\n",
form->key_info[tab->select->quick->index].name,
tab->select->quick->max_used_key_length);
else
VOID(fputs(" select used\n",DBUG_FILE));
}
if (tab->ref.key_parts)
{
VOID(fputs(" refs: ",DBUG_FILE));
for (ref=0 ; ref < tab->ref.key_parts ; ref++)
{
Item *item=tab->ref.items[ref];
fprintf(DBUG_FILE,"%s ", item->full_name());
}
VOID(fputc('\n',DBUG_FILE));
}
}
DBUG_UNLOCK_FILE;
DBUG_VOID_RETURN;
}
#endif
void mysql_print_status(THD *thd)
{
printf("\nStatus information:\n\n");
if (thd)
thd->proc_info="locks";
thr_print_locks(); // Write some debug info
#ifndef DBUG_OFF
if (thd)
thd->proc_info="table cache";
print_cached_tables();
#endif
/* Print key cache status */
if (thd)
thd->proc_info="key cache";
pthread_mutex_lock(&THR_LOCK_keycache);
printf("key_cache status:\n\
blocks used:%10lu\n\
not flushed:%10lu\n\
w_requests: %10lu\n\
writes: %10lu\n\
r_requests: %10lu\n\
reads: %10lu\n",
_my_blocks_used,_my_blocks_changed,_my_cache_w_requests,
_my_cache_write,_my_cache_r_requests,_my_cache_read);
pthread_mutex_unlock(&THR_LOCK_keycache);
if (thd)
thd->proc_info="status";
pthread_mutex_lock(&LOCK_status);
printf("\nhandler status:\n\
read_key: %10lu\n\
read_next: %10lu\n\
read_rnd %10lu\n\
read_first: %10lu\n\
write: %10lu\n\
delete %10lu\n\
update: %10lu\n",
ha_read_key_count, ha_read_next_count,
ha_read_rnd_count, ha_read_first_count,
ha_write_count, ha_delete_count, ha_update_count);
pthread_mutex_unlock(&LOCK_status);
printf("\nTable status:\n\
Opened tables: %10lu\n\
Open tables: %10lu\n\
Open files: %10lu\n\
Open streams: %10lu\n",
opened_tables,
(ulong) cached_tables(),
(ulong) my_file_opened,
(ulong) my_stream_opened);
fflush(stdout);
if (thd)
thd->proc_info="malloc";
TERMINATE(stdout); // Write malloc information
if (thd)
thd->proc_info=0;
}
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