dbt_table_p dbt_load_file(const str *tbn, const str *dbn)
{
FILE *fin=NULL;
char path[512], buf[4096];
int c, crow, ccol, bp, sign, max_auto;
dbt_val_t dtval;
dbt_table_p dtp = NULL;
dbt_column_p colp, colp0 = NULL;
dbt_row_p rowp, rowp0 = NULL;
enum {DBT_FLINE_ST, DBT_NLINE_ST, DBT_DATA_ST} state;
LM_DBG("request for table [%.*s]\n", tbn->len, tbn->s);
if(!tbn || !tbn->s || tbn->len<=0 || tbn->len>=255)
return NULL;
path[0] = 0;
if(dbn && dbn->s && dbn->len>0)
{
LM_DBG("db is [%.*s]\n", dbn->len, dbn->s);
if(dbn->len+tbn->len<511)
{
strncpy(path, dbn->s, dbn->len);
path[dbn->len] = '/';
strncpy(path+dbn->len+1, tbn->s, tbn->len);
path[dbn->len+tbn->len+1] = 0;
}
}
if(path[0] == 0)
{
strncpy(path, tbn->s, tbn->len);
path[tbn->len] = 0;
}
LM_DBG("loading file [%s]\n", path);
fin = fopen(path, "rt");
if(!fin)
return NULL;
dtp = dbt_table_new(tbn, dbn, path);
if(!dtp)
goto done;
state = DBT_FLINE_ST;
crow = ccol = -1;
colp = colp0 = NULL;
rowp = rowp0 = NULL;
c = fgetc(fin);
max_auto = 0;
while(c!=EOF)
{
switch(state)
{
case DBT_FLINE_ST:
//LM_DBG("state FLINE!\n");
bp = 0;
while(c==DBT_DELIM_C)
c = fgetc(fin);
if(c==DBT_DELIM_R && !colp0)
goto clean;
if(c==DBT_DELIM_R)
{
if(dtp->nrcols <= 0)
goto clean;
dtp->colv = (dbt_column_p*)
shm_malloc(dtp->nrcols*sizeof(dbt_column_p));
if(!dtp->colv)
goto clean;
colp0 = dtp->cols;
for(ccol=0; ccol<dtp->nrcols && colp0; ccol++)
{
dtp->colv[ccol] = colp0;
colp0 = colp0->next;
}
state = DBT_NLINE_ST;
break;
}
while(c!=DBT_DELIM_C && c!='(' && c!=DBT_DELIM_R)
{
if(c==EOF)
goto clean;
buf[bp++] = c;
c = fgetc(fin);
}
colp = dbt_column_new(buf, bp);
if(!colp)
goto clean;
//LM_DBG("new col [%.*s]\n", bp, buf);
while(c==DBT_DELIM_C)
c = fgetc(fin);
if(c!='(')
goto clean;
c = fgetc(fin);
while(c==DBT_DELIM_C)
c = fgetc(fin);
switch(c)
{
case 's':
case 'S':
colp->type = DB_STR;
LM_DBG("column[%d] is STR!\n", ccol+1);
break;
case 'i':
case 'I':
colp->type = DB_INT;
LM_DBG("column[%d] is INT!\n", ccol+1);
break;
case 'l':
case 'L':
colp->type = DB_BIGINT;
LM_DBG("column[%d] is BIGINT!\n", ccol+1);
break;
case 'd':
case 'D':
colp->type = DB_DOUBLE;
LM_DBG("column[%d] is DOUBLE!\n", ccol+1);
break;
case 'b':
case 'B':
colp->type = DB_BLOB;
LM_DBG("column[%d] is BLOB!\n", ccol+1);
break;
case 't':
case 'T':
colp->type = DB_DATETIME;
LM_DBG("column[%d] is TIME!\n", ccol+1);
break;
default:
LM_DBG("wrong column type!\n");
goto clean;
}
while(c!='\n' && c!=EOF && c!=')' && c!= ',')
{
if(colp->type == DB_STR && (c=='i'|| c=='I'))
{
colp->type = DB_STRING;
LM_DBG("column[%d] is actually STRING!\n", ccol+1);
}
c = fgetc(fin);
}
if(c==',')
{
//LM_DBG("c=%c!\n", c);
c = fgetc(fin);
while(c==DBT_DELIM_C)
c = fgetc(fin);
if(c=='N' || c=='n')
{
//LM_DBG("NULL flag set!\n");
colp->flag |= DBT_FLAG_NULL;
}
else if(colp->type==DB_INT && dtp->auto_col<0
&& (c=='A' || c=='a'))
{
//LM_DBG("AUTO flag set!\n");
colp->flag |= DBT_FLAG_AUTO;
dtp->auto_col = ccol+1;
}
else
goto clean;
while(c!=')' && c!=DBT_DELIM_R && c!=EOF)
c = fgetc(fin);
}
if(c == ')')
{
//LM_DBG("c=%c!\n", c);
if(colp0)
{
colp->prev = colp0;
colp0->next = colp;
}
else
dtp->cols = colp;
colp0 = colp;
dtp->nrcols++;
c = fgetc(fin);
}
else
goto clean;
ccol++;
break;
case DBT_NLINE_ST:
//LM_DBG("state NLINE!\n");
while(c==DBT_DELIM_R)
c = fgetc(fin);
if(rowp)
{
if(dbt_table_check_row(dtp, rowp))
goto clean;
if(!rowp0)
dtp->rows = rowp;
else
{
rowp0->next = rowp;
rowp->prev = rowp0;
}
rowp0 = rowp;
dtp->nrrows++;
}
if(c==EOF)
break;
crow++;
ccol = 0;
rowp = dbt_row_new(dtp->nrcols);
if(!rowp)
goto clean;
state = DBT_DATA_ST;
break;
case DBT_DATA_ST:
//LM_DBG("state DATA!\n");
//while(c==DBT_DELIM)
// c = fgetc(fin);
if(ccol == dtp->nrcols && (c==DBT_DELIM_R || c==EOF))
{
state = DBT_NLINE_ST;
break;
}
if(ccol>= dtp->nrcols)
goto clean;
switch(dtp->colv[ccol]->type)
{
case DB_INT:
case DB_BIGINT:
case DB_DATETIME:
//LM_DBG("INT value!\n");
dtval.val.int_val = 0;
dtval.type = dtp->colv[ccol]->type;
if(c==DBT_DELIM ||
(ccol==dtp->nrcols-1
&& (c==DBT_DELIM_R || c==EOF)))
dtval.nul = 1;
else
{
dtval.nul = 0;
sign = 1;
if(c=='-')
{
sign = -1;
c = fgetc(fin);
}
if(c<'0' || c>'9')
goto clean;
while(c>='0' && c<='9')
{
dtval.val.int_val=dtval.val.int_val*10+c-'0';
c = fgetc(fin);
}
dtval.val.int_val *= sign;
//LM_DBG("data[%d,%d]=%d\n", crow,
// ccol, dtval.val.int_val);
}
if(c!=DBT_DELIM && c!=DBT_DELIM_R && c!=EOF)
goto clean;
if(dbt_row_set_val(rowp,&dtval,dtp->colv[ccol]->type,
ccol))
goto clean;
if(ccol == dtp->auto_col)
max_auto = (max_auto<dtval.val.int_val)?
dtval.val.int_val:max_auto;
break;
case DB_DOUBLE:
//LM_DBG("DOUBLE value!\n");
dtval.val.double_val = 0.0;
dtval.type = DB_DOUBLE;
if(c==DBT_DELIM ||
(ccol==dtp->nrcols-1
&& (c==DBT_DELIM_R || c==EOF)))
dtval.nul = 1;
else
{
dtval.nul = 0;
sign = 1;
if(c=='-')
{
sign = -1;
c = fgetc(fin);
}
if(c<'0' || c>'9')
goto clean;
while(c>='0' && c<='9')
{
dtval.val.double_val = dtval.val.double_val*10
+ c - '0';
c = fgetc(fin);
}
if(c=='.')
{
c = fgetc(fin);
bp = 1;
while(c>='0' && c<='9')
{
bp *= 10;
dtval.val.double_val+=((double)(c-'0'))/bp;
c = fgetc(fin);
}
}
dtval.val.double_val *= sign;
//LM_DBG("data[%d,%d]=%10.2f\n",
// crow, ccol, dtval.val.double_val);
}
if(c!=DBT_DELIM && c!=DBT_DELIM_R && c!=EOF)
goto clean;
if(dbt_row_set_val(rowp,&dtval,DB_DOUBLE,ccol))
goto clean;
break;
case DB_STR:
case DB_STRING:
case DB_BLOB:
//LM_DBG("STR value!\n");
dtval.val.str_val.s = NULL;
dtval.val.str_val.len = 0;
dtval.type = dtp->colv[ccol]->type;
bp = 0;
if(c==DBT_DELIM ||
(ccol == dtp->nrcols-1
&& (c == DBT_DELIM_R || c==EOF)))
dtval.nul = 1;
else
{
dtval.nul = 0;
while(c!=DBT_DELIM && c!=DBT_DELIM_R && c!=EOF)
{
if(c=='\\')
{
c = fgetc(fin);
switch(c)
{
case 'n':
c = '\n';
break;
case 'r':
c = '\r';
break;
case 't':
c = '\t';
break;
case '\\':
c = '\\';
break;
case DBT_DELIM:
c = DBT_DELIM;
break;
case '0':
c = 0;
break;
default:
goto clean;
}
}
buf[bp++] = c;
c = fgetc(fin);
}
dtval.val.str_val.s = buf;
dtval.val.str_val.len = bp;
//LM_DBG("data[%d,%d]=%.*s\n",
/// crow, ccol, bp, buf);
}
if(c!=DBT_DELIM && c!=DBT_DELIM_R && c!=EOF)
goto clean;
if(dbt_row_set_val(rowp,&dtval,dtp->colv[ccol]->type,
ccol))
goto clean;
break;
default:
goto clean;
}
if(c==DBT_DELIM)
c = fgetc(fin);
ccol++;
break; // state DBT_DATA_ST
}
}
if(max_auto)
dtp->auto_val = max_auto;
done:
if(fin)
fclose(fin);
return dtp;
clean:
/// ????? FILL IT IN - incomplete row/column
// memory leak?!?! with last incomplete row
LM_DBG("error at row=%d col=%d c=%c\n", crow+1, ccol+1, c);
if(dtp)
dbt_table_free(dtp);
return NULL;
}
/*
* Insert a row into table
*/
int dbt_insert(db1_con_t* _h, db_key_t* _k, db_val_t* _v, int _n)
{
dbt_table_p _tbc = NULL;
dbt_row_p _drp = NULL;
int *lkey=NULL, i, j;
if (!_h || !CON_TABLE(_h))
{
LM_ERR("invalid parameter\n");
return -1;
}
((dbt_con_p)_h->tail)->affected = 0;
if(!_k || !_v || _n<=0)
{
LM_ERR("no key-value to insert\n");
return -1;
}
/* lock database */
_tbc = dbt_db_get_table(DBT_CON_CONNECTION(_h), CON_TABLE(_h));
if(!_tbc)
{
LM_ERR("table %.*s does not exist!\n", CON_TABLE(_h)->len, CON_TABLE(_h)->s);
return -1;
}
if(_tbc->nrcols<_n)
{
LM_ERR("more values than columns!!\n");
goto error;
}
if(_k)
{
lkey = dbt_get_refs(_tbc, _k, _n);
if(!lkey)
goto error;
}
_drp = dbt_row_new(_tbc->nrcols);
if(!_drp)
{
LM_ERR("no shm memory for a new row!!\n");
goto error;
}
for(i=0; i<_n; i++)
{
j = (lkey)?lkey[i]:i;
if(dbt_is_neq_type(_tbc->colv[j]->type, _v[i].type))
{
LM_ERR("incompatible types v[%d] - c[%d]!\n", i, j);
goto clean;
}
if(_v[i].type == DB1_STRING && !_v[i].nul)
_v[i].val.str_val.len = strlen(_v[i].val.string_val);
if(dbt_row_set_val(_drp, &(_v[i]), _tbc->colv[j]->type, j))
{
LM_ERR("cannot set v[%d] in c[%d]!\n", i, j);
goto clean;
}
}
if(dbt_table_add_row(_tbc, _drp))
{
LM_ERR("cannot insert the new row!!\n");
goto clean;
}
((dbt_con_p)_h->tail)->affected = 1;
/* dbt_print_table(_tbc, NULL); */
/* unlock databse */
dbt_release_table(DBT_CON_CONNECTION(_h), CON_TABLE(_h));
if(lkey)
pkg_free(lkey);
return 0;
error:
/* unlock database */
dbt_release_table(DBT_CON_CONNECTION(_h), CON_TABLE(_h));
if(lkey)
pkg_free(lkey);
LM_ERR("failed to insert row in table!\n");
return -1;
clean:
if(lkey)
pkg_free(lkey);
if(_drp) // free row
dbt_row_free(_tbc, _drp);
/* unlock database */
dbt_release_table(DBT_CON_CONNECTION(_h), CON_TABLE(_h));
return -1;
}
int dbt_replace(db1_con_t* _h, db_key_t* _k, db_val_t* _v,
int _n, int _nk, int _m)
{
dbt_table_p _tbc = NULL;
dbt_row_p _drp = NULL;
int i, j;
int *lkey=NULL, *lres=NULL;
if (!_h || !CON_TABLE(_h) || _nk <= 0)
{
LM_ERR("invalid parameters\n");
return -1;
}
((dbt_con_p)_h->tail)->affected = 0;
/* lock database */
_tbc = dbt_db_get_table(DBT_CON_CONNECTION(_h), CON_TABLE(_h));
if(!_tbc)
{
LM_ERR("table %.*s does not exist!\n", CON_TABLE(_h)->len, CON_TABLE(_h)->s);
return -1;
}
if(_k)
{
lkey = dbt_get_refs(_tbc, _k, _nk);
if(!lkey)
goto error;
}
lres = dbt_get_refs(_tbc, _k, _n);
if(!lres)
goto error;
_drp = _tbc->rows;
while(_drp)
{
if(dbt_row_match(_tbc, _drp, lkey, NULL, _v, _nk))
{ // update fields
for(i=0; i<_n; i++)
{
if(dbt_is_neq_type(_tbc->colv[lres[i]]->type, _v[i].type))
{
LM_ERR("incompatible types!\n");
goto error;
}
if(dbt_row_update_val(_drp, &(_v[i]),
_tbc->colv[lres[i]]->type, lres[i]))
{
LM_ERR("cannot set v[%d] in c[%d]!\n",
i, lres[i]);
goto error;
}
}
((dbt_con_p)_h->tail)->affected++;
break;
}
_drp = _drp->next;
}
if(((dbt_con_p)_h->tail)->affected == 0) {
_drp = dbt_row_new(_tbc->nrcols);
if(!_drp)
{
LM_ERR("no shm memory for a new row!!\n");
goto error;
}
for(i=0; i<_n; i++)
{
j = lres[i];
if(dbt_is_neq_type(_tbc->colv[j]->type, _v[i].type))
{
LM_ERR("incompatible types v[%d] - c[%d]!\n", i, j);
goto error;
}
if(_v[i].type == DB1_STRING && !_v[i].nul)
_v[i].val.str_val.len = strlen(_v[i].val.string_val);
if(dbt_row_set_val(_drp, &(_v[i]), _tbc->colv[j]->type, j))
{
LM_ERR("cannot set v[%d] in c[%d]!\n", i, j);
goto error;
}
}
if(dbt_table_add_row(_tbc, _drp))
{
LM_ERR("cannot insert the new row!!\n");
goto error;
}
((dbt_con_p)_h->tail)->affected = 1;
}
if( ((dbt_con_p)_h->tail)->affected )
dbt_table_update_flags(_tbc, DBT_TBFL_MODI, DBT_FL_SET, 1);
/* dbt_print_table(_tbc, NULL); */
/* unlock database */
dbt_release_table(DBT_CON_CONNECTION(_h), CON_TABLE(_h));
if(lkey)
pkg_free(lkey);
if(lres)
pkg_free(lres);
return 0;
error:
if(lkey)
pkg_free(lkey);
if(lres)
pkg_free(lres);
if(_drp) // free row
dbt_row_free(_tbc, _drp);
/* unlock database */
dbt_release_table(DBT_CON_CONNECTION(_h), CON_TABLE(_h));
LM_ERR("failed to update the table!\n");
return -1;
}
/*
* Insert a row into table
*/
int dbt_insert(db_con_t* _h, db_key_t* _k, db_val_t* _v, int _n)
{
tbl_cache_p _tbc = NULL;
dbt_table_p _dtp = NULL;
dbt_row_p _drp = NULL;
str stbl;
int *lkey=NULL, i, j;
if (!_h || !CON_TABLE(_h))
{
#ifdef DBT_EXTRA_DEBUG
LOG(L_ERR, "DBT:dbt_insert: Invalid parameter value\n");
#endif
return -1;
}
if(!_k || !_v || _n<=0)
{
#ifdef DBT_EXTRA_DEBUG
DBG("DBT:dbt_insert: no key-value to insert\n");
#endif
return -1;
}
stbl.s = (char*)CON_TABLE(_h);
stbl.len = strlen(CON_TABLE(_h));
_tbc = dbt_db_get_table(DBT_CON_CONNECTION(_h), &stbl);
if(!_tbc)
{
DBG("DBT:db_insert: table does not exist!\n");
return -1;
}
lock_get(&_tbc->sem);
_dtp = _tbc->dtp;
if(!_dtp)
{
DBG("DBT:db_insert: table does not exist!!\n");
goto error;
}
if(_dtp->nrcols<_n)
{
DBG("DBT:db_insert: more values than columns!!\n");
goto error;
}
if(_k)
{
lkey = dbt_get_refs(_dtp, _k, _n);
if(!lkey)
goto error;
}
_drp = dbt_row_new(_dtp->nrcols);
if(!_drp)
{
DBG("DBT:db_insert: no memory for a new row!!\n");
goto error;
}
for(i=0; i<_n; i++)
{
j = (lkey)?lkey[i]:i;
if(dbt_is_neq_type(_dtp->colv[j]->type, _v[i].type))
{
DBG("DBT:db_insert: incompatible types v[%d] - c[%d]!\n", i, j);
goto clean;
}
if(dbt_row_set_val(_drp, &(_v[i]), _v[i].type, j))
{
DBG("DBT:db_insert: cannot set v[%d] in c[%d]!\n", i, j);
goto clean;
}
}
if(dbt_table_add_row(_dtp, _drp))
{
DBG("DBT:db_insert: cannot insert the new row!!\n");
goto clean;
}
#ifdef DBT_EXTRA_DEBUG
dbt_print_table(_dtp, NULL);
#endif
lock_release(&_tbc->sem);
if(lkey)
pkg_free(lkey);
DBG("DBT:db_insert: done!\n");
return 0;
error:
lock_release(&_tbc->sem);
if(lkey)
pkg_free(lkey);
DBG("DBT:db_insert: error inserting row in table!\n");
return -1;
clean:
lock_release(&_tbc->sem);
if(lkey)
pkg_free(lkey);
if(_drp) // free row
dbt_row_free(_dtp, _drp);
DBG("DBT:db_insert: make clean!\n");
return -1;
}