int myrg_create(const char *name, const char **table_names,
uint insert_method, my_bool fix_names)
{
int save_errno;
uint errpos;
File file;
char buff[FN_REFLEN],*end;
DBUG_ENTER("myrg_create");
errpos=0;
if ((file= mysql_file_create(rg_key_file_MRG,
fn_format(buff, name, "", MYRG_NAME_EXT,
MY_UNPACK_FILENAME|MY_APPEND_EXT), 0,
O_RDWR | O_EXCL | O_NOFOLLOW, MYF(MY_WME))) < 0)
goto err;
errpos=1;
if (table_names)
{
for ( ; *table_names ; table_names++)
{
my_stpcpy(buff,*table_names);
if (fix_names)
fn_same(buff,name,4);
*(end=strend(buff))='\n';
end[1]=0;
if (mysql_file_write(file, (uchar*) buff, (uint) (end-buff+1),
MYF(MY_WME | MY_NABP)))
goto err;
}
}
if (insert_method != MERGE_INSERT_DISABLED)
{
end=strxmov(buff,"#INSERT_METHOD=",
get_type(&merge_insert_method,insert_method-1),"\n",NullS);
if (mysql_file_write(file, (uchar*) buff, (uint) (end-buff),
MYF(MY_WME | MY_NABP)))
goto err;
}
if (mysql_file_close(file, MYF(0)))
goto err;
DBUG_RETURN(0);
err:
save_errno=my_errno() ? my_errno() : -1;
switch (errpos) {
case 1:
(void) mysql_file_close(file, MYF(0));
}
set_my_errno(save_errno);
DBUG_RETURN(save_errno);
} /* myrg_create */
void _myisam_log_record(enum myisam_log_commands command, MI_INFO *info,
const uchar *record, my_off_t filepos, int result)
{
uchar buff[21],*pos;
int error,old_errno;
uint length;
ulong pid=(ulong) GETPID();
old_errno=my_errno;
if (!info->s->base.blobs)
length=info->s->base.reclength;
else
length=info->s->base.reclength+ _my_calc_total_blob_length(info,record);
buff[0]=(uchar) command;
mi_int2store(buff+1,info->dfile);
mi_int4store(buff+3,pid);
mi_int2store(buff+7,result);
mi_sizestore(buff+9,filepos);
mi_int4store(buff+17,length);
mysql_mutex_lock(&THR_LOCK_myisam);
error=my_lock(myisam_log_file,F_WRLCK,0L,F_TO_EOF,MYF(MY_SEEK_NOT_DONE));
(void) mysql_file_write(myisam_log_file, buff, sizeof(buff), MYF(0));
(void) mysql_file_write(myisam_log_file, record, info->s->base.reclength, MYF(0));
if (info->s->base.blobs)
{
MI_BLOB *blob,*end;
for (end=info->blobs+info->s->base.blobs, blob= info->blobs;
blob != end ;
blob++)
{
memcpy(&pos, record+blob->offset+blob->pack_length,
sizeof(char*));
(void) mysql_file_write(myisam_log_file, pos, blob->length, MYF(0));
}
}
if (!error)
error=my_lock(myisam_log_file,F_UNLCK,0L,F_TO_EOF,MYF(MY_SEEK_NOT_DONE));
mysql_mutex_unlock(&THR_LOCK_myisam);
my_errno=old_errno;
}
void _myisam_log_command(enum myisam_log_commands command, MI_INFO *info,
const uchar *buffert, uint length, int result)
{
uchar buff[9];
int error,old_errno;
ulong pid=(ulong) GETPID();
old_errno=my_errno;
buff[0]=(char) command;
mi_int2store(buff+1,info->dfile);
mi_int4store(buff+3,pid);
mi_int2store(buff+7,result);
mysql_mutex_lock(&THR_LOCK_myisam);
error=my_lock(myisam_log_file,F_WRLCK,0L,F_TO_EOF,MYF(MY_SEEK_NOT_DONE));
(void) mysql_file_write(myisam_log_file, buff, sizeof(buff), MYF(0));
if (buffert)
(void) mysql_file_write(myisam_log_file, buffert, length, MYF(0));
if (!error)
error=my_lock(myisam_log_file,F_UNLCK,0L,F_TO_EOF,MYF(MY_SEEK_NOT_DONE));
mysql_mutex_unlock(&THR_LOCK_myisam);
my_errno=old_errno;
}
