static int load_sca_info_from_db(void)
{
db_res_t * res = NULL;
db_val_t * values;
db_row_t * rows;
int i, j, nr_rows;
unsigned int valid_record;
unsigned int n_result_cols = 0;
unsigned int shared_line_col, watchers_col;
unsigned int app_shared_entity_col[MAX_APPEARANCE_INDEX];
unsigned int app_call_state_col[MAX_APPEARANCE_INDEX];
unsigned int app_call_info_uri_col[MAX_APPEARANCE_INDEX];
unsigned int app_call_info_appearance_uri_col[MAX_APPEARANCE_INDEX];
unsigned int app_b2bl_key_col[MAX_APPEARANCE_INDEX];
db_key_t q_cols[SCA_TABLE_TOTAL_COL_NO];
str shared_line, watchers_csv;
//str_lst_t *watchers;
//unsigned int size, watcher_size, watchers_no;
//unsigned int size;
unsigned int hash_index;
//char *p;
b2b_sca_record_t *record;
b2b_sca_call_t *call;
unsigned int shared_entity, appearance_index, call_state;
str call_info_uri, call_info_apperance_uri, b2bl_key;
b2bl_cb_ctx_t *cb_params;
if(use_sca_table()) return -1;
q_cols[shared_line_col = n_result_cols++] = &shared_line_column;
q_cols[watchers_col = n_result_cols++] = &watchers_column;
for (i=0; i<MAX_APPEARANCE_INDEX; i++) {
q_cols[app_shared_entity_col[i] = n_result_cols++] = &app_shared_entity_column[i];
q_cols[app_call_state_col[i] = n_result_cols++] = &app_call_state_column[i];
q_cols[app_call_info_uri_col[i] = n_result_cols++] = &app_call_info_uri_column[i];
q_cols[app_call_info_appearance_uri_col[i] = n_result_cols++] =
&app_call_info_appearance_uri_column[i];
q_cols[app_b2bl_key_col[i] = n_result_cols++] = &app_b2bl_key_column[i];
}
/* select the whole tabel and all the columns */
if (DB_CAPABILITY(sca_dbf, DB_CAP_FETCH)) {
if(sca_dbf.query(sca_db_handle, 0, 0, 0, q_cols, 0,
SCA_TABLE_TOTAL_COL_NO, 0, 0) < 0) {
LM_ERR("Error while querying (fetch) database\n");
return -1;
}
if(sca_dbf.fetch_result(sca_db_handle, &res, SCA_FETCH_SIZE)<0){
LM_ERR("fetching rows failed\n");
return -1;
}
} else {
if(sca_dbf.query(sca_db_handle, 0, 0, 0, q_cols, 0,
SCA_TABLE_TOTAL_COL_NO, 0, &res) < 0) {
LM_ERR("Error while querying database\n");
return -1;
}
}
nr_rows = RES_ROW_N(res);
do {
LM_DBG("loading [%i] records from db\n", nr_rows);
rows = RES_ROWS(res);
/* for every row/record */
for(i=0; i<nr_rows; i++){
values = ROW_VALUES(rows + i);
if (VAL_NULL(values+shared_line_col) || VAL_NULL(values+watchers_col)) {
LM_ERR("columns [%.*s] or/and [%.*s] cannot be null -> skipping\n",
shared_line_column.len, shared_line_column.s,
watchers_column.len, watchers_column.s);
continue;
}
shared_line.s = (char*)values[shared_line_col].val.string_val;
shared_line.len = strlen(shared_line.s);
watchers_csv.s = (char*)values[watchers_col].val.string_val;
watchers_csv.len = strlen(watchers_csv.s);
record = restore_record(&shared_line, &watchers_csv);
if (record == NULL)
goto error;
hash_index = core_hash(&shared_line, NULL, b2b_sca_hsize);
j = 0;
while (j < MAX_APPEARANCE_INDEX) {
if( VAL_NULL(values + app_shared_entity_col[j]) ||
VAL_NULL(values + app_call_state_col[j]) ||
VAL_NULL(values + app_call_info_uri_col[j]) ||
VAL_NULL(values + app_call_info_appearance_uri_col[j]) ||
VAL_NULL(values + app_b2bl_key_col[j]) ) {
goto cont;
}
appearance_index = j + 1;
/* 1 - get shared_entity */
shared_entity = values[app_shared_entity_col[j]].val.int_val;
if (shared_entity!=0 && shared_entity!=1) {
LM_ERR("Unexpected shared_entity [%d] "
"for shared_line [%.*s]\n",
shared_entity, shared_line.len, shared_line.s);
goto cont;
}
/* 2 - get call_state */
call_state = values[app_call_state_col[j]].val.int_val;
if (call_state == IDLE_STATE) {
LM_DBG("empty call[%d]\n", appearance_index);
goto cont;
}
if (call_state > MAX_INDEX_STATE) {
LM_ERR("Unexpected call_state [%d] for shared_line [%.*s]\n",
call_state, shared_line.len, shared_line.s);
goto cont;
}
/* 3 - get call_info_uri */
call_info_uri.s =
(char*)values[app_call_info_uri_col[j]].val.string_val;
if (call_info_uri.s)
call_info_uri.len = strlen(call_info_uri.s);
else {
LM_ERR("Missing call_info_uri for shared_line [%.*s][%d]\n",
shared_line.len, shared_line.s, appearance_index);
goto cont;
}
LM_DBG("call_info_uri=[%.*s]\n",
call_info_uri.len, call_info_uri.s);
/* 4 - get call_info_apperance_uri */
call_info_apperance_uri.s =
(char*)
values[app_call_info_appearance_uri_col[j]].val.string_val;
if (call_info_apperance_uri.s)
call_info_apperance_uri.len =
strlen(call_info_apperance_uri.s);
else {
LM_ERR("Missing call_info_apperance_uri for "
"shared_line [%.*s][%d]\n",
shared_line.len, shared_line.s, appearance_index);
goto cont;
}
LM_DBG("call_info_apperance_uri=[%.*s]\n",
call_info_apperance_uri.len, call_info_apperance_uri.s);
/* 5 - get b2bl_key */
b2bl_key.s = (char*)values[app_b2bl_key_col[j]].val.string_val;
if (b2bl_key.s) {
b2bl_key.len = strlen(b2bl_key.s);
if (b2bl_key.len > B2BL_MAX_KEY_LEN) {
LM_ERR("buffer overflow on b2bl_key [%.*s]"
" for shared_line [%.*s][%d]\n",
b2bl_key.len, b2bl_key.s,
shared_line.len, shared_line.s,
appearance_index);
goto cont;
}
LM_DBG("b2bl_key=[%.*s]\n", b2bl_key.len, b2bl_key.s);
} else {
LM_ERR("Missing b2bl_key for shared_line [%.*s][1]\n",
shared_line.len, shared_line.s);
goto cont;
}
/* restore the call */
call = restore_call(record, appearance_index,
shared_entity, call_state,
&call_info_uri, &call_info_apperance_uri);
if (call == NULL) {
goto error;
}
/* update record */
if (0!=b2b_sca_update_call_record_key(call, &b2bl_key)) {
LM_ERR("Unable to update b2bl_key [%.*s]\n",
b2bl_key.len, b2bl_key.s);
shm_free(call);
call = NULL;
record->call[appearance_index-1] = NULL;
goto cont;
}
/* Prepare b2b_logic callback params. */
cb_params = build_cb_params(hash_index,
&shared_line, appearance_index);
if (cb_params == NULL) {
LM_ERR("Unable to build cb_params\n");
goto error;
}
/* re-register callbacks */
if(b2bl_api.register_cb(&b2bl_key, &sca_logic_notify, cb_params,
B2B_RE_INVITE_CB|B2B_CONFIRMED_CB|B2B_DESTROY_CB) != 0){
LM_ERR("Unable register b2b cb\n");
shm_free(call);
call = NULL;
record->call[appearance_index-1] = NULL;
goto cont;
}
cont:
j++;
}
valid_record = j = 0;
while (j < MAX_APPEARANCE_INDEX) {
if (record->call[j]) {
valid_record = 1;
goto check_valid_record;
}
j++;
}
check_valid_record:
if (valid_record) {
b2b_sca_print_record(record);
insert_record(hash_index, record);
} else {
LM_DBG("removing the record from db!\n");
delete_sca_info_from_db(record);
}
LM_DBG("Done\n");
}
/* any more data to be fetched ?*/
if (DB_CAPABILITY(sca_dbf, DB_CAP_FETCH)) {
if (sca_dbf.fetch_result(sca_db_handle, &res, SCA_FETCH_SIZE)<0) {
LM_ERR("fetching more rows failed\n");
goto error;
}
nr_rows = RES_ROW_N(res);
} else {
nr_rows = 0;
}
}while (nr_rows>0);
sca_dbf.free_result(sca_db_handle, res);
return 0;
error:
sca_dbf.free_result(sca_db_handle, res);
return -1;
}
int b2b_sca_add_call_record(int hash_index, str *shared_line,
unsigned int shared_entity, unsigned int app_index,
str *call_info_uri, str *call_info_apperance_uri,
b2b_sca_record_t **record_ctx, b2b_sca_call_t **call_ctx)
{
//b2b_sca_record_t *rec, *prev_rec;
b2b_sca_record_t *record;
b2b_sca_call_t *call;
unsigned int i, size, watcher_size, watchers_no;
char *p;
str_lst_t *watchers;
if (app_index>=MAX_APPEARANCE_INDEX) {
LM_ERR("Required app_index [%d] too big\n", app_index);
return -1;
}
record = b2b_sca_search_record_safe(hash_index, shared_line);
if (record) {
/* We already have active calls for this shared line */
if (app_index) {
i = app_index - 1;
if (record->call[i]) {
LM_DBG("Searching for a new slot\n");
for (i=0; i<MAX_APPEARANCE_INDEX; i++) {
if (record->call[i] == NULL)
break;
}
}
} else {
LM_DBG("no forced app_index\n");
for (i=0; i<MAX_APPEARANCE_INDEX; i++) {
if (record->call[i] == NULL)
break;
}
}
if (i == MAX_APPEARANCE_INDEX) {
LM_ERR("No available slots for this call\n");
return -1;
}
call = restore_call(record, i+1, shared_entity, ALERTING_STATE,
call_info_uri, call_info_apperance_uri);
if (call == NULL) {
return -1;
}
} else {
/* First call for this shared line */
/* Get the list of watchers */
get_watchers_from_avp(&watchers, &watcher_size, &watchers_no);
size = sizeof(b2b_sca_record_t) + shared_line->len + watcher_size;
record = (b2b_sca_record_t *)shm_malloc(size);
if (record == NULL) {
LM_ERR("OOM\n");
return -1;
}
memset(record, 0, size);
p = (char*)(record + 1);
record->watchers_no = watchers_no;
record->shared_line.len = shared_line->len;
record->shared_line.s = p;
memcpy(p, shared_line->s, shared_line->len);
p += shared_line->len;
if (watchers && watcher_size) {
record->watchers = (str_lst_t *)p;
memcpy_watchers(record->watchers, watchers, watcher_size);
if (watchers)
free_watchers(watchers);
} else {
record->watchers = NULL;
LM_WARN("We have no watchers: watchers=[%p] and watcher_size=[%d]\n",
watchers, watcher_size);
}
/* Let's take care of the call now */
call = restore_call(record, app_index?app_index:1, shared_entity, ALERTING_STATE,
call_info_uri, call_info_apperance_uri);
if (call == NULL)
goto error;
/* Insert record into the table */
insert_record(hash_index, record);
/*
rec = b2b_sca_htable[hash_index].first;
if (rec) {
while(rec) {
prev_rec = rec;
rec = rec->next;
}
prev_rec->next = record;
record->prev = prev_rec;
} else {
b2b_sca_htable[hash_index].first = record;
record->prev = record->next = NULL;
}
*/
}
*record_ctx = record;
*call_ctx = call;
return 0;
error:
shm_free(record);
return -1;
}
