int main(int argc, char *argv[])
{
uint i;
int j,n1,n2,n3,error,k;
uint write_count,update,dupp_keys,opt_delete,start,length,blob_pos,
reclength,ant;
ulong lastpos,range_records,records;
N_INFO *file;
N_KEYDEF keyinfo[10];
N_RECINFO recinfo[10];
N_ISAMINFO info;
char *filename,*blob_buffer;
MY_INIT(argv[0]);
filename= (char*) "test2.ISM";
get_options(argc,argv);
if (! async_io)
my_disable_async_io=1;
reclength=STANDAR_LENGTH+60+(use_blob ? 8 : 0);
blob_pos=STANDAR_LENGTH+60;
keyinfo[0].seg[0].base.start=0;
keyinfo[0].seg[0].base.length=6;
keyinfo[0].seg[0].base.type=HA_KEYTYPE_TEXT;
keyinfo[0].seg[0].base.flag=(uint8) pack_type;
keyinfo[0].seg[1].base.type=0;
keyinfo[0].base.flag = (uint8) (pack_type ? HA_PACK_KEY : 0);
keyinfo[1].seg[0].base.start=7;
keyinfo[1].seg[0].base.length=6;
keyinfo[1].seg[0].base.type=HA_KEYTYPE_BINARY;
keyinfo[1].seg[0].base.flag=0;
keyinfo[1].seg[1].base.start=0; /* Tv}delad nyckel */
keyinfo[1].seg[1].base.length=6;
keyinfo[1].seg[1].base.type=HA_KEYTYPE_NUM;
keyinfo[1].seg[1].base.flag=HA_REVERSE_SORT;
keyinfo[1].seg[2].base.type=0;
keyinfo[1].base.flag =0;
keyinfo[2].seg[0].base.start=12;
keyinfo[2].seg[0].base.length=8;
keyinfo[2].seg[0].base.type=HA_KEYTYPE_BINARY;
keyinfo[2].seg[0].base.flag=HA_REVERSE_SORT;
keyinfo[2].seg[1].base.type=0;
keyinfo[2].base.flag =HA_NOSAME;
keyinfo[3].seg[0].base.start=0;
keyinfo[3].seg[0].base.length=reclength-(use_blob ? 8 : 0);
keyinfo[3].seg[0].base.type=HA_KEYTYPE_TEXT;
keyinfo[3].seg[0].base.flag=(uint8) pack_type;
keyinfo[3].seg[1].base.type=0;
keyinfo[3].base.flag = (uint8) (pack_type ? HA_PACK_KEY : 0);
keyinfo[4].seg[0].base.start=0;
keyinfo[4].seg[0].base.length=5;
keyinfo[4].seg[0].base.type=HA_KEYTYPE_TEXT;
keyinfo[4].seg[0].base.flag=0;
keyinfo[4].seg[1].base.type=0;
keyinfo[4].base.flag = (uint8) (pack_type ? HA_PACK_KEY : 0);
keyinfo[5].seg[0].base.start=0;
keyinfo[5].seg[0].base.length=4;
keyinfo[5].seg[0].base.type=HA_KEYTYPE_TEXT;
keyinfo[5].seg[0].base.flag=(uint8) pack_type;
keyinfo[5].seg[1].base.type=0;
keyinfo[5].base.flag = (uint8) (pack_type ? HA_PACK_KEY : 0);
recinfo[0].base.type=pack_fields ? FIELD_SKIP_PRESPACE : 0;
recinfo[0].base.length=7;
recinfo[1].base.type=pack_fields ? FIELD_SKIP_PRESPACE : 0;
recinfo[1].base.length=5;
recinfo[2].base.type=pack_fields ? FIELD_SKIP_PRESPACE : 0;
recinfo[2].base.length=9;
recinfo[3].base.type=FIELD_NORMAL;
recinfo[3].base.length=STANDAR_LENGTH-7-5-9-4;
recinfo[4].base.type=pack_fields ? FIELD_SKIP_ZERO : 0;
recinfo[4].base.length=4;
recinfo[5].base.type=pack_fields ? FIELD_SKIP_ENDSPACE : 0;
recinfo[5].base.length=60;
if (use_blob)
{
recinfo[6].base.type=FIELD_BLOB;
recinfo[6].base.length=4+sizeof(char*); /* 4 byte ptr, 4 byte length */
recinfo[7].base.type= FIELD_LAST;
}
else
recinfo[6].base.type= FIELD_LAST;
write_count=update=dupp_keys=opt_delete=0;
blob_buffer=0;
for (i=999 ; i>0 ; i--) key1[i]=0;
for (i=4999 ; i>0 ; i--) key3[i]=0;
printf("- Creating isam-file\n");
/* DBUG_PUSH(""); */
my_delete(filename,MYF(0)); /* Remove old locks under gdb */
file= 0;
if (nisam_create(filename,keys,&keyinfo[first_key],&recinfo[0],
(ulong) (rec_pointer_size ? (1L << (rec_pointer_size*8))/
reclength : 0),100l,0,0,0L))
goto err;
if (use_log)
nisam_log(1);
if (!(file=nisam_open(filename,2,HA_OPEN_ABORT_IF_LOCKED)))
goto err;
printf("- Writing key:s\n");
if (key_cacheing)
init_key_cache(IO_SIZE*16); /* Use a small cache */
if (locking)
nisam_lock_database(file,F_WRLCK);
if (write_cacheing)
nisam_extra(file,HA_EXTRA_WRITE_CACHE);
for (i=0 ; i < recant ; i++)
{
n1=rnd(1000); n2=rnd(100); n3=rnd(5000);
sprintf(record,"%6d:%4d:%8d:Pos: %4d ",n1,n2,n3,write_count);
longstore(record+STANDAR_LENGTH-4,(long) i);
fix_length(record,(uint) STANDAR_LENGTH+rnd(60));
put_blob_in_record(record+blob_pos,&blob_buffer);
DBUG_PRINT("test",("record: %d",i));
if (nisam_write(file,record))
{
if (my_errno != HA_ERR_FOUND_DUPP_KEY || key3[n3] == 0)
{
printf("Error: %d in write at record: %d\n",my_errno,i);
goto err;
}
if (verbose) printf(" Double key: %d\n",n3);
}
else
{
if (key3[n3] == 1 && first_key <3 && first_key+keys >= 3)
{
printf("Error: Didn't get error when writing second key: '%8d'\n",n3);
goto err;
}
write_count++; key1[n1]++; key3[n3]=1;
}
/* Check if we can find key without flushing database */
if (i == recant/2)
{
for (j=rnd(1000) ; j>0 && key1[j] == 0 ; j--) ;
if (!j)
for (j=999 ; j>0 && key1[j] == 0 ; j--) ;
sprintf(key,"%6d",j);
if (nisam_rkey(file,read_record,0,key,0,HA_READ_KEY_EXACT))
{
printf("Test in loop: Can't find key: \"%s\"\n",key);
goto err;
}
}
}
if (testflag==1) goto end;
if (write_cacheing)
if (nisam_extra(file,HA_EXTRA_NO_CACHE))
{
puts("got error from nisam_extra(HA_EXTRA_NO_CACHE)");
goto end;
}
printf("- Delete\n");
for (i=0 ; i<recant/10 ; i++)
{
for (j=rnd(1000) ; j>0 && key1[j] == 0 ; j--) ;
if (j != 0)
{
sprintf(key,"%6d",j);
if (nisam_rkey(file,read_record,0,key,0,HA_READ_KEY_EXACT))
{
printf("can't find key1: \"%s\"\n",key);
goto err;
}
if (nisam_delete(file,read_record))
{
printf("error: %d; can't delete record: \"%s\"\n", my_errno,read_record);
goto err;
}
opt_delete++;
key1[atoi(read_record+keyinfo[0].seg[0].base.start)]--;
key3[atoi(read_record+keyinfo[2].seg[0].base.start)]=0;
}
}
if (testflag==2) goto end;
printf("- Update\n");
for (i=0 ; i<recant/10 ; i++)
{
n1=rnd(1000); n2=rnd(100); n3=rnd(5000);
sprintf(record2,"%6d:%4d:%8d:XXX: %4d ",n1,n2,n3,update);
longstore(record2+STANDAR_LENGTH-4,(long) i);
fix_length(record2,(uint) STANDAR_LENGTH+rnd(60));
for (j=rnd(1000) ; j>0 && key1[j] == 0 ; j--) ;
if (j != 0)
{
sprintf(key,"%6d",j);
if (nisam_rkey(file,read_record,0,key,0,HA_READ_KEY_EXACT))
{
printf("can't find key1: \"%s\"\n",key);
goto err;
}
if (use_blob)
{
if (i & 1)
put_blob_in_record(record+blob_pos,&blob_buffer);
else
bmove(record+blob_pos,read_record+blob_pos,8);
}
if (nisam_update(file,read_record,record2))
{
if (my_errno != HA_ERR_FOUND_DUPP_KEY || key3[n3] == 0)
{
printf("error: %d; can't update:\nFrom: \"%s\"\nTo: \"%s\"\n",
my_errno,read_record,record2);
goto err;
}
if (verbose)
printf("Double key when tried to update:\nFrom: \"%s\"\nTo: \"%s\"\n",record,record2);
}
else
{
key1[atoi(read_record+keyinfo[0].seg[0].base.start)]--;
key3[atoi(read_record+keyinfo[2].seg[0].base.start)]=0;
key1[n1]++; key3[n3]=1;
update++;
}
}
}
if (testflag==3) goto end;
printf("- Same key: first - next -> last - prev -> first\n");
DBUG_PRINT("progpos",("first - next -> last - prev -> first"));
for (i=999, dupp_keys=j=0 ; i>0 ; i--)
{
if (key1[i] >dupp_keys) { dupp_keys=key1[i]; j=i; }
}
sprintf(key,"%6d",j);
if (verbose) printf(" Using key: \"%s\" Keys: %d\n",key,dupp_keys);
if (nisam_rkey(file,read_record,0,key,0,HA_READ_KEY_EXACT)) goto err;
if (nisam_rsame(file,read_record2,-1)) goto err;
if (memcmp(read_record,read_record2,reclength) != 0)
{
printf("nisam_rsame didn't find same record\n");
goto end;
}
nisam_info(file,&info,0);
if (nisam_rfirst(file,read_record2,0) ||
nisam_rsame_with_pos(file,read_record2,0,info.recpos) ||
memcmp(read_record,read_record2,reclength) != 0)
{
printf("nisam_rsame_with_pos didn't find same record\n");
goto end;
}
{
int skr=nisam_rnext(file,read_record2,0);
if ((skr && my_errno != HA_ERR_END_OF_FILE) ||
nisam_rprev(file,read_record2,-1) ||
memcmp(read_record,read_record2,reclength) != 0)
{
printf("nisam_rsame_with_pos lost position\n");
goto end;
}
}
ant=1;
start=keyinfo[0].seg[0].base.start; length=keyinfo[0].seg[0].base.length;
while (nisam_rnext(file,read_record2,0) == 0 &&
memcmp(read_record2+start,key,length) == 0) ant++;
if (ant != dupp_keys)
{
printf("next: I can only find: %d keys of %d\n",ant,dupp_keys);
goto end;
}
ant=0;
while (nisam_rprev(file,read_record3,0) == 0 &&
bcmp(read_record3+start,key,length) == 0) ant++;
if (ant != dupp_keys)
{
printf("prev: I can only find: %d records of %d\n",ant,dupp_keys);
goto end;
}
printf("- All keys: first - next -> last - prev -> first\n");
DBUG_PRINT("progpos",("All keys: first - next -> last - prev -> first"));
ant=1;
if (nisam_rfirst(file,read_record,0))
{
printf("Can't find first record\n");
goto end;
}
while (nisam_rnext(file,read_record3,0) == 0 && ant < write_count+10)
ant++;
if (ant != write_count - opt_delete)
{
printf("next: I found: %d records of %d\n",ant,write_count - opt_delete);
goto end;
}
if (nisam_rlast(file,read_record2,0) ||
bcmp(read_record2,read_record3,reclength))
{
printf("Can't find last record\n");
DBUG_DUMP("record2",(byte*) read_record2,reclength);
DBUG_DUMP("record3",(byte*) read_record3,reclength);
goto end;
}
ant=1;
while (nisam_rprev(file,read_record3,0) == 0 && ant < write_count+10)
ant++;
if (ant != write_count - opt_delete)
{
printf("prev: I found: %d records of %d\n",ant,write_count);
goto end;
}
if (bcmp(read_record,read_record3,reclength))
{
printf("Can't find first record\n");
goto end;
}
printf("- Test if: Read first - next - prev - prev - next == first\n");
DBUG_PRINT("progpos",("- Read first - next - prev - prev - next == first"));
if (nisam_rfirst(file,read_record,0) ||
nisam_rnext(file,read_record3,0) ||
nisam_rprev(file,read_record3,0) ||
nisam_rprev(file,read_record3,0) == 0 ||
nisam_rnext(file,read_record3,0))
goto err;
if (bcmp(read_record,read_record3,reclength) != 0)
printf("Can't find first record\n");
printf("- Test if: Read last - prev - next - next - prev == last\n");
DBUG_PRINT("progpos",("Read last - prev - next - next - prev == last"));
if (nisam_rlast(file,read_record2,0) ||
nisam_rprev(file,read_record3,0) ||
nisam_rnext(file,read_record3,0) ||
nisam_rnext(file,read_record3,0) == 0 ||
nisam_rprev(file,read_record3,0))
goto err;
if (bcmp(read_record2,read_record3,reclength))
printf("Can't find last record\n");
puts("- Test read key-part");
strmov(key2,key);
for(i=strlen(key2) ; i-- > 1 ;)
{
key2[i]=0;
if (nisam_rkey(file,read_record,0,key2,(uint) i,HA_READ_KEY_EXACT)) goto err;
if (bcmp(read_record+start,key,(uint) i))
{
puts("Didn't find right record");
goto end;
}
}
if (dupp_keys > 2)
{
printf("- Read key (first) - next - delete - next -> last\n");
DBUG_PRINT("progpos",("first - next - delete - next -> last"));
if (nisam_rkey(file,read_record,0,key,0,HA_READ_KEY_EXACT)) goto err;
if (nisam_rnext(file,read_record3,0)) goto err;
if (nisam_delete(file,read_record3)) goto err;
opt_delete++;
ant=1;
while (nisam_rnext(file,read_record3,0) == 0 &&
bcmp(read_record3+start,key,length) == 0) ant++;
if (ant != dupp_keys-1)
{
printf("next: I can only find: %d keys of %d\n",ant,dupp_keys-1);
goto end;
}
}
if (dupp_keys>4)
{
printf("- Read last of key - prev - delete - prev -> first\n");
DBUG_PRINT("progpos",("last - prev - delete - prev -> first"));
if (nisam_rprev(file,read_record3,0)) goto err;
if (nisam_rprev(file,read_record3,0)) goto err;
if (nisam_delete(file,read_record3)) goto err;
opt_delete++;
ant=1;
while (nisam_rprev(file,read_record3,0) == 0 &&
bcmp(read_record3+start,key,length) == 0) ant++;
if (ant != dupp_keys-2)
{
printf("next: I can only find: %d keys of %d\n",ant,dupp_keys-2);
goto end;
}
}
if (dupp_keys > 6)
{
printf("- Read first - delete - next -> last\n");
DBUG_PRINT("progpos",("first - delete - next -> last"));
if (nisam_rkey(file,read_record3,0,key,0,HA_READ_KEY_EXACT)) goto err;
if (nisam_delete(file,read_record3)) goto err;
opt_delete++;
ant=1;
if (nisam_rnext(file,read_record,0))
goto err; /* Skall finnas poster */
while (nisam_rnext(file,read_record3,0) == 0 &&
bcmp(read_record3+start,key,length) == 0) ant++;
if (ant != dupp_keys-3)
{
printf("next: I can only find: %d keys of %d\n",ant,dupp_keys-3);
goto end;
}
printf("- Read last - delete - prev -> first\n");
DBUG_PRINT("progpos",("last - delete - prev -> first"));
if (nisam_rprev(file,read_record3,0)) goto err;
if (nisam_delete(file,read_record3)) goto err;
opt_delete++;
ant=0;
while (nisam_rprev(file,read_record3,0) == 0 &&
bcmp(read_record3+start,key,length) == 0) ant++;
if (ant != dupp_keys-4)
{
printf("next: I can only find: %d keys of %d\n",ant,dupp_keys-4);
goto end;
}
}
puts("- Test if: Read rrnd - same");
DBUG_PRINT("progpos",("Read rrnd - same"));
for (i=0 ; i < write_count ; i++)
{
if (nisam_rrnd(file,read_record,i == 0 ? 0L : NI_POS_ERROR) == 0)
break;
}
if (i == write_count)
goto err;
bmove(read_record2,read_record,reclength);
for (i=2 ; i-- > 0 ;)
{
if (nisam_rsame(file,read_record2,(int) i)) goto err;
if (bcmp(read_record,read_record2,reclength) != 0)
{
printf("is_rsame didn't find same record\n");
goto end;
}
}
puts("- Test nisam_records_in_range");
nisam_info(file,&info,HA_STATUS_VARIABLE);
for (i=0 ; i < info.keys ; i++)
{
if (nisam_rfirst(file,read_record,(int) i) ||
nisam_rlast(file,read_record2,(int) i))
goto err;
copy_key(file,(uint) i,(uchar*) read_record,(uchar*) key);
copy_key(file,(uint) i,(uchar*) read_record2,(uchar*) key2);
range_records=nisam_records_in_range(file,(int) i,key,0,HA_READ_KEY_EXACT,
key2,0,HA_READ_AFTER_KEY);
if (range_records < info.records*8/10 ||
range_records > info.records*12/10)
{
printf("ni_records_range returned %lu; Should be about %lu\n",
range_records,info.records);
goto end;
}
if (verbose)
{
printf("ni_records_range returned %ld; Exact is %ld (diff: %4.2g %%)\n",
range_records,info.records,
labs((long) range_records - (long) info.records)*100.0/
info.records);
}
}
for (i=0 ; i < 5 ; i++)
{
for (j=rnd(1000) ; j>0 && key1[j] == 0 ; j--) ;
for (k=rnd(1000) ; k>0 && key1[k] == 0 ; k--) ;
if (j != 0 && k != 0)
{
if (j > k)
swap(int,j,k);
sprintf(key,"%6d",j);
sprintf(key2,"%6d",k);
range_records=nisam_records_in_range(file,0,key,0,HA_READ_AFTER_KEY,
key2,0,HA_READ_BEFORE_KEY);
records=0;
for (j++ ; j < k ; j++)
records+=key1[j];
if ((long) range_records < (long) records*7/10-2 ||
(long) range_records > (long) records*13/10+2)
{
printf("ni_records_range returned %ld; Should be about %ld\n",
range_records,records);
goto end;
}
if (verbose && records)
{
printf("ni_records_range returned %ld; Exact is %ld (diff: %4.2g %%)\n",
range_records,records,
labs((long) range_records-(long) records)*100.0/records);
}
}
}
printf("- nisam_info\n");
nisam_info(file,&info,0);
if (info.records != write_count-opt_delete || info.deleted > opt_delete + update
|| info.keys != keys)
{
puts("Wrong info from nisam_info");
printf("Got: records: %ld opt_delete: %ld i_keys: %d\n",
info.records,info.deleted,info.keys);
}
if (verbose)
{
char buff[80];
get_date(buff,3,info.create_time);
printf("info: Created %s\n",buff);
get_date(buff,3,info.isamchk_time);
printf("info: checked %s\n",buff);
get_date(buff,3,info.update_time);
printf("info: Modified %s\n",buff);
}
nisam_panic(HA_PANIC_WRITE);
nisam_panic(HA_PANIC_READ);
if (nisam_is_changed(file))
puts("Warning: nisam_is_changed reported that datafile was changed");
printf("- nisam_extra(CACHE) + nisam_rrnd.... + nisam_extra(NO_CACHE)\n");
if (nisam_extra(file,HA_EXTRA_RESET) || nisam_extra(file,HA_EXTRA_CACHE))
{
if (locking || (!use_blob && !pack_fields))
{
puts("got error from nisam_extra(HA_EXTRA_CACHE)");
goto end;
}
}
ant=0;
while ((error=nisam_rrnd(file,record,NI_POS_ERROR)) >= 0 &&
ant < write_count + 10)
ant+= error ? 0 : 1;
if (ant != write_count-opt_delete)
{
printf("rrnd with cache: I can only find: %d records of %d\n",
ant,write_count-opt_delete);
goto end;
}
if (nisam_extra(file,HA_EXTRA_NO_CACHE))
{
puts("got error from nisam_extra(HA_EXTRA_NO_CACHE)");
goto end;
}
if (testflag == 4) goto end;
printf("- Removing keys\n");
lastpos = NI_POS_ERROR;
/* DBUG_POP(); */
nisam_extra(file,HA_EXTRA_RESET);
while ((error=nisam_rrnd(file,read_record,NI_POS_ERROR)) >=0)
{
nisam_info(file,&info,1);
if (lastpos >= info.recpos && lastpos != NI_POS_ERROR)
{
printf("nisam_rrnd didn't advance filepointer; old: %ld, new: %ld\n",
lastpos,info.recpos);
goto err;
}
lastpos=info.recpos;
if (error == 0)
{
if (nisam_rsame(file,read_record,-1))
{
printf("can't find record %lx\n",info.recpos);
goto err;
}
if (use_blob)
{
ulong blob_length,pos;
uchar *ptr;
longget(blob_length,read_record+blob_pos+4);
ptr=(uchar*) blob_length;
longget(blob_length,read_record+blob_pos);
for (pos=0 ; pos < blob_length ; pos++)
{
if (ptr[pos] != (uchar) (blob_length+pos))
{
printf("found blob with wrong info at %ld\n",lastpos);
use_blob=0;
break;
}
}
}
if (nisam_delete(file,read_record))
{
printf("can't delete record: %s\n",read_record);
goto err;
}
opt_delete++;
}
}
if (my_errno != HA_ERR_END_OF_FILE && my_errno != HA_ERR_RECORD_DELETED)
printf("error: %d from nisam_rrnd\n",my_errno);
if (write_count != opt_delete)
{
printf("Deleted only %d of %d records\n",write_count,opt_delete);
goto err;
}
end:
if (nisam_close(file))
goto err;
nisam_panic(HA_PANIC_CLOSE); /* Should close log */
printf("\nFollowing test have been made:\n");
printf("Write records: %d\nUpdate records: %d\nSame-key-read: %d\nDelete records: %d\n", write_count,update,dupp_keys,opt_delete);
if (rec_pointer_size)
printf("Record pointer size: %d\n",rec_pointer_size);
if (key_cacheing)
puts("Key cacheing used");
if (write_cacheing)
puts("Write cacheing used");
if (async_io && locking)
puts("Asyncron io with locking used");
else if (locking)
puts("Locking used");
if (use_blob)
puts("blobs used");
end_key_cache();
if (blob_buffer)
my_free(blob_buffer,MYF(0));
my_end(MY_CHECK_ERROR | MY_GIVE_INFO);
return(0);
err:
printf("got error: %d when using NISAM-database\n",my_errno);
if (file)
VOID(nisam_close(file));
return(1);
} /* main */
int nisam_panic(enum ha_panic_function flag)
{
int error=0;
LIST *list_element,*next_open;
N_INFO *info;
DBUG_ENTER("nisam_panic");
pthread_mutex_lock(&THR_LOCK_isam);
for (list_element=nisam_open_list ; list_element ; list_element=next_open)
{
next_open=list_element->next; /* Save if close */
info=(N_INFO*) list_element->data;
switch (flag) {
case HA_PANIC_CLOSE:
pthread_mutex_unlock(&THR_LOCK_isam); /* Not exactly right... */
if (nisam_close(info))
error=my_errno;
pthread_mutex_lock(&THR_LOCK_isam);
break;
case HA_PANIC_WRITE: /* Do this to free databases */
#ifdef CANT_OPEN_FILES_TWICE
if (info->s->base.options & HA_OPTION_READ_ONLY_DATA)
break;
#endif
if (flush_key_blocks(info->s->kfile,FLUSH_RELEASE))
error=my_errno;
if (info->opt_flag & WRITE_CACHE_USED)
if (flush_io_cache(&info->rec_cache))
error=my_errno;
if (info->opt_flag & READ_CACHE_USED)
{
if (flush_io_cache(&info->rec_cache))
error=my_errno;
reinit_io_cache(&info->rec_cache,READ_CACHE,0,
(pbool) (info->lock_type != F_UNLCK),1);
}
#ifndef NO_LOCKING
if (info->lock_type != F_UNLCK && ! info->was_locked)
{
info->was_locked=info->lock_type;
if (nisam_lock_database(info,F_UNLCK))
error=my_errno;
}
#else
{
int save_status=info->s->w_locks; /* Only w_locks! */
info->s->w_locks=0;
if (_nisam_writeinfo(info, test(info->update & HA_STATE_CHANGED)))
error=my_errno;
info->s->w_locks=save_status;
info->update&= ~HA_STATE_CHANGED; /* Not changed */
}
#endif /* NO_LOCKING */
#ifdef CANT_OPEN_FILES_TWICE
if (info->s->kfile >= 0 && my_close(info->s->kfile,MYF(0)))
error = my_errno;
if (info->dfile >= 0 && my_close(info->dfile,MYF(0)))
error = my_errno;
info->s->kfile=info->dfile= -1; /* Files aren't open anymore */
break;
#endif
case HA_PANIC_READ: /* Restore to before WRITE */
#ifdef CANT_OPEN_FILES_TWICE
{ /* Open closed files */
char name_buff[FN_REFLEN];
if (info->s->kfile < 0)
if ((info->s->kfile= my_open(fn_format(name_buff,info->filename,"",
N_NAME_IEXT,4),info->mode,
MYF(MY_WME))) < 0)
error = my_errno;
if (info->dfile < 0)
{
if ((info->dfile= my_open(fn_format(name_buff,info->filename,"",
N_NAME_DEXT,4),info->mode,
MYF(MY_WME))) < 0)
error = my_errno;
info->rec_cache.file=info->dfile;
}
}
#endif
#ifndef NO_LOCKING
if (info->was_locked)
{
if (nisam_lock_database(info, info->was_locked))
error=my_errno;
info->was_locked=0;
}
#else
{
int lock_type,w_locks;
lock_type=info->lock_type ; w_locks=info->s->w_locks;
info->lock_type=0; info->s->w_locks=0;
if (_nisam_readinfo(info,0,1)) /* Read changed data */
error=my_errno;
info->lock_type=lock_type; info->s->w_locks=w_locks;
}
/* Don't use buffer when doing next */
info->update|=HA_STATE_WRITTEN;
#endif /* NO_LOCKING */
break;
}
}
if (flag == HA_PANIC_CLOSE)
VOID(nisam_log(0)); /* Close log if neaded */
pthread_mutex_unlock(&THR_LOCK_isam);
if (!error) DBUG_RETURN(0);
my_errno=error;
DBUG_RETURN(-1);
} /* nisam_panic */
