int flat_uri(db_uri_t* uri)
{
struct flat_uri* furi;
if ((furi = (struct flat_uri*)pkg_malloc(sizeof(*furi))) == NULL) {
ERR("flatstore: No memory left\n");
return -1;
}
memset(furi, '\0', sizeof(*furi));
if (db_drv_init(&furi->drv, flat_uri_free) < 0) goto error;
if ((furi->path.s = get_abs_pathname(NULL, &uri->body)) == NULL) {
ERR("flatstore: Error while obtaining absolute pathname for '%.*s'\n",
STR_FMT(&uri->body));
goto error;
}
furi->path.len = strlen(furi->path.s);
DB_SET_PAYLOAD(uri, furi);
return 0;
error:
if (furi) {
if (furi->path.s) pkg_free(furi->path.s);
db_drv_free(&furi->drv);
pkg_free(furi);
}
return -1;
}
int ld_uri(db_uri_t* uri)
{
struct ld_uri* luri;
luri = (struct ld_uri*)pkg_malloc(sizeof(struct ld_uri));
if (luri == NULL) {
ERR("ldap: No memory left\n");
goto error;
}
memset(luri, '\0', sizeof(struct ld_uri));
if (db_drv_init(&luri->drv, ld_uri_free) < 0) goto error;
if (parse_ldap_uri(luri, &uri->scheme, &uri->body) < 0) goto error;
DB_SET_PAYLOAD(uri, luri);
uri->cmp = ld_uri_cmp;
return 0;
error:
if (luri) {
if (luri->uri) pkg_free(luri->uri);
if (luri->ldap_url) ldap_free_urldesc(luri->ldap_url);
db_drv_free(&luri->drv);
pkg_free(luri);
}
return -1;
}
int bdb_cmd(db_cmd_t *cmd)
{
bdb_cmd_t *bcmd;
db_con_t *con;
bdb_con_t *bcon;
bcmd = (bdb_cmd_t *)pkg_malloc(sizeof(bdb_cmd_t));
if(bcmd == NULL) {
ERR("bdb: No memory left\n");
goto error;
}
memset(bcmd, '\0', sizeof(bdb_cmd_t));
if(db_drv_init(&bcmd->gen, bdb_cmd_free) < 0)
goto error;
con = cmd->ctx->con[db_payload_idx];
bcon = DB_GET_PAYLOAD(con);
bcmd->bcon = bcon;
switch(cmd->type) {
case DB_PUT:
case DB_DEL:
case DB_UPD:
ERR("bdb: The driver does not support DB modifications yet.\n");
goto error;
break;
case DB_GET:
if(bdb_prepare_query(cmd, bcmd) != 0) {
ERR("bdb: error preparing query.\n");
goto error;
}
break;
case DB_SQL:
ERR("bdb: The driver does not support raw queries yet.\n");
goto error;
}
DB_SET_PAYLOAD(cmd, bcmd);
return 0;
error:
if(bcmd) {
DB_SET_PAYLOAD(cmd, NULL);
db_drv_free(&bcmd->gen);
pkg_free(bcmd);
}
return -1;
}
int my_fld(db_fld_t* fld, char* table)
{
struct my_fld* res;
res = (struct my_fld*)pkg_malloc(sizeof(struct my_fld));
if (res == NULL) {
ERR("mysql: No memory left\n");
return -1;
}
memset(res, '\0', sizeof(struct my_fld));
if (db_drv_init(&res->gen, my_fld_free) < 0) goto error;
DB_SET_PAYLOAD(fld, res);
return 0;
error:
if (res) pkg_free(res);
return -1;
}
int bdb_fld(db_fld_t* fld, char* table)
{
bdb_fld_t *res;
res = (bdb_fld_t*)pkg_malloc(sizeof(bdb_fld_t));
if (res == NULL) {
ERR("oracle: No memory left\n");
return -1;
}
memset(res, '\0', sizeof(bdb_fld_t));
res->col_pos = -1;
if (db_drv_init(&res->gen, bdb_fld_free) < 0) goto error;
DB_SET_PAYLOAD(fld, res);
return 0;
error:
if (res) pkg_free(res);
return -1;
}
/*
* Attach a mysql specific structure to db_res, this structure contains a pointer
* to my_res_free which releases the mysql result stored in the mysql statement
* and if there is a cursor open in the statement then it will be closed as well
*/
int my_res(db_res_t* res)
{
struct my_res* mr;
mr = (struct my_res*)pkg_malloc(sizeof(struct my_res));
if (mr == NULL) {
ERR("mysql: No memory left\n");
return -1;
}
if (db_drv_init(&mr->gen, my_res_free) < 0) goto error;
DB_SET_PAYLOAD(res, mr);
return 0;
error:
if (mr) {
db_drv_free(&mr->gen);
pkg_free(mr);
}
return -1;
}
/*
* Attach bdb specific structure to db_res, this structure contains a pointer
* to bdb_res_free which releases the result stored in the oracle statement
* and if there is a cursor open in the statement then it will be closed as well
*/
int bdb_res(db_res_t* res)
{
bdb_res_t *br;
br = (bdb_res_t*)pkg_malloc(sizeof(bdb_res_t));
if (br == NULL) {
ERR("bdb: No memory left\n");
return -1;
}
if (db_drv_init(&br->gen, bdb_res_free) < 0) goto error;
DB_SET_PAYLOAD(res, br);
return 0;
error:
if (br) {
db_drv_free(&br->gen);
pkg_free(br);
}
return -1;
}
int ld_res(db_res_t* res)
{
struct ld_res* lres;
lres = (struct ld_res*)pkg_malloc(sizeof(struct ld_res));
if (lres == NULL) {
ERR("ldap: No memory left\n");
return -1;
}
memset(lres, '\0', sizeof(struct ld_res));
if (db_drv_init(&lres->gen, ld_res_free) < 0) goto error;
DB_SET_PAYLOAD(res, lres);
return 0;
error:
if (lres) {
db_drv_free(&lres->gen);
pkg_free(lres);
}
return -1;
}
int flat_cmd(db_cmd_t* cmd)
{
struct flat_cmd* fcmd;
db_con_t* con;
if (cmd->type != DB_PUT) {
ERR("flatstore: The driver supports PUT operation only.\n");
return -1;
}
if (DB_FLD_EMPTY(cmd->vals)) {
ERR("flatstore: PUT command with no values encountered\n");
return -1;
}
fcmd = (struct flat_cmd*)pkg_malloc(sizeof(struct flat_cmd));
if (fcmd == NULL) {
ERR("flatstore: No memory left\n");
return -1;
}
memset(fcmd, '\0', sizeof(struct flat_cmd));
if (db_drv_init(&fcmd->gen, flat_cmd_free) < 0) goto error;
/* FIXME */
con = cmd->ctx->con[db_payload_idx];
if (flat_open_table(&fcmd->file_index, con, &cmd->table) < 0) goto error;
DB_SET_PAYLOAD(cmd, fcmd);
return 0;
error:
if (fcmd) {
DB_SET_PAYLOAD(cmd, NULL);
db_drv_free(&fcmd->gen);
pkg_free(fcmd);
}
return -1;
}
int pg_uri(db_uri_t* uri)
{
struct pg_uri* puri;
puri = (struct pg_uri*)pkg_malloc(sizeof(struct pg_uri));
if (puri == NULL) {
ERR("postgres: No memory left\n");
goto error;
}
memset(puri, '\0', sizeof(struct pg_uri));
if (db_drv_init(&puri->drv, pg_uri_free) < 0) goto error;
if (parse_postgres_uri(puri, &uri->body) < 0) goto error;
DB_SET_PAYLOAD(uri, puri);
uri->cmp = pg_uri_cmp;
return 0;
error:
if (puri) {
db_drv_free(&puri->drv);
if (puri) pkg_free(puri);
}
return -1;
}
int my_uri(db_uri_t* uri)
{
struct my_uri* res;
res = (struct my_uri*)pkg_malloc(sizeof(struct my_uri));
if (res == NULL) {
ERR("mysql: No memory left\n");
goto error;
}
memset(res, '\0', sizeof(struct my_uri));
if (db_drv_init(&res->drv, my_uri_free) < 0) goto error;
if (parse_mysql_uri(res, &uri->body) < 0) goto error;
DB_SET_PAYLOAD(uri, res);
uri->cmp = my_uri_cmp;
return 0;
error:
if (res) {
db_drv_free(&res->drv);
if (res) pkg_free(res);
}
return -1;
}
int pg_cmd(db_cmd_t* cmd)
{
struct pg_cmd* pcmd;
pcmd = (struct pg_cmd*)pkg_malloc(sizeof(struct pg_cmd));
if (pcmd == NULL) {
ERR("postgres: No memory left\n");
goto error;
}
memset(pcmd, '\0', sizeof(struct pg_cmd));
if (db_drv_init(&pcmd->gen, pg_cmd_free) < 0) goto error;
switch(cmd->type) {
case DB_PUT:
if (build_insert_sql(&pcmd->sql_cmd, cmd) < 0) goto error;
break;
case DB_DEL:
if (build_delete_sql(&pcmd->sql_cmd, cmd) < 0) goto error;
break;
case DB_GET:
if (build_select_sql(&pcmd->sql_cmd, cmd) < 0) goto error;
break;
case DB_UPD:
if (build_update_sql(&pcmd->sql_cmd, cmd) < 0) goto error;
break;
case DB_SQL:
pcmd->sql_cmd.s = (char*)pkg_malloc(cmd->table.len + 1);
if (pcmd->sql_cmd.s == NULL) {
ERR("postgres: Out of private memory\n");
goto error;
}
memcpy(pcmd->sql_cmd.s,cmd->table.s, cmd->table.len);
pcmd->sql_cmd.s[cmd->table.len] = '\0';
pcmd->sql_cmd.len = cmd->table.len;
break;
}
DB_SET_PAYLOAD(cmd, pcmd);
/* Create parameter arrays for PostgreSQL API functions */
if (create_pg_params(cmd) < 0) goto error;
/* Generate a unique name for the command on the server */
if (gen_cmd_name(cmd) != 0) goto error;
/* Upload the command to the server */
if (upload_cmd(cmd) != 0) goto error;
/* Obtain the description of the uploaded command, this includes
* information about result and parameter fields */
if (get_types(cmd) != 0) goto error;
/* Update fields based on the information retrieved from the */
if (pg_resolve_param_oids(cmd->vals, cmd->match,
cmd->vals_count, cmd->match_count,
pcmd->types))
goto error;
if (pg_resolve_result_oids(cmd->result, cmd->result_count, pcmd->types))
goto error;
if (check_types(cmd)) goto error;
return 0;
error:
if (pcmd) {
DB_SET_PAYLOAD(cmd, NULL);
free_pg_params(&pcmd->params);
if (pcmd->types) PQclear(pcmd->types);
if (pcmd->name) pkg_free(pcmd->name);
if (pcmd->sql_cmd.s) pkg_free(pcmd->sql_cmd.s);
db_drv_free(&pcmd->gen);
pkg_free(pcmd);
}
return -1;
}
int ld_cmd(db_cmd_t* cmd)
{
struct ld_cmd* lcmd;
struct ld_cfg* cfg;
struct ld_fld* lfld;
int i, j;
lcmd = (struct ld_cmd*)pkg_malloc(sizeof(struct ld_cmd));
if (lcmd == NULL) {
ERR("ldap: No memory left\n");
goto error;
}
memset(lcmd, '\0', sizeof(struct ld_cmd));
if (db_drv_init(&lcmd->gen, ld_cmd_free) < 0) goto error;
switch(cmd->type) {
case DB_PUT:
case DB_DEL:
case DB_UPD:
ERR("ldap: The driver does not support directory modifications yet.\n");
goto error;
break;
case DB_GET:
break;
case DB_SQL:
ERR("ldap: The driver does not support raw queries yet.\n");
goto error;
}
cfg = ld_find_cfg(&cmd->table);
if (cfg == NULL) {
ERR("ldap: Cannot find configuration for '%.*s', giving up\n",
STR_FMT(&cmd->table));
goto error;
}
lcmd->base = cfg->base.s;
lcmd->scope = cfg->scope;
lcmd->sizelimit = cfg->sizelimit;
if (cfg->timelimit) {
lcmd->timelimit.tv_sec = cfg->timelimit;
lcmd->timelimit.tv_usec = 0;
}
if (cfg->filter.s) {
lcmd->filter = cfg->filter;
}
lcmd->chase_references = cfg->chase_references;
lcmd->chase_referrals = cfg->chase_referrals;
if (ld_resolve_fld(cmd->match, cfg) < 0) goto error;
if (ld_resolve_fld(cmd->result, cfg) < 0) goto error;
/* prepare filter for each result field */
for(i = 0; !DB_FLD_EMPTY(cmd->result) && !DB_FLD_LAST(cmd->result[i]); i++) {
int n;
lfld = DB_GET_PAYLOAD(cmd->result + i);
lfld->filter = NULL;
for(j = 0, n = 0; !DB_FLD_EMPTY(cmd->match) && !DB_FLD_LAST(cmd->match[j]); j++) {
if (strcmp(cmd->result[i].name, cmd->match[j].name) == 0)
n++;
}
if (n > 0) {
lfld->filter = pkg_malloc((n+1)*sizeof(*(lfld->filter)));
if (!lfld->filter) return -1 /* E_OUT_OF_MEM*/;
for(j = 0, n = 0; !DB_FLD_EMPTY(cmd->match) && !DB_FLD_LAST(cmd->match[j]); j++) {
if (strcmp(cmd->result[i].name, cmd->match[j].name) == 0) {
lfld->filter[n] = cmd->match+j;
n++;
}
}
lfld->filter[n] = NULL;
}
}
if (build_result_array(&lcmd->result, cmd) < 0) goto error;
DB_SET_PAYLOAD(cmd, lcmd);
return 0;
error:
if (lcmd) {
DB_SET_PAYLOAD(cmd, NULL);
db_drv_free(&lcmd->gen);
if (lcmd->result) pkg_free(lcmd->result);
pkg_free(lcmd);
}
return -1;
}
int my_cmd(db_cmd_t* cmd)
{
struct my_cmd* res;
res = (struct my_cmd*)pkg_malloc(sizeof(struct my_cmd));
if (res == NULL) {
ERR("mysql: No memory left\n");
goto error;
}
memset(res, '\0', sizeof(struct my_cmd));
/* Fetch all data to client at once by default */
res->flags |= MY_FETCH_ALL;
if (db_drv_init(&res->gen, my_cmd_free) < 0) goto error;
switch(cmd->type) {
case DB_PUT:
if (DB_FLD_EMPTY(cmd->vals)) {
BUG("mysql: No parameters provided for DB_PUT in context '%.*s'\n",
cmd->ctx->id.len, ZSW(cmd->ctx->id.s));
goto error;
}
if (build_replace_cmd(&res->sql_cmd, cmd) < 0) goto error;
break;
case DB_DEL:
if (build_delete_cmd(&res->sql_cmd, cmd) < 0) goto error;
break;
case DB_GET:
if (build_select_cmd(&res->sql_cmd, cmd) < 0) goto error;
break;
case DB_UPD:
if (build_update_cmd(&res->sql_cmd, cmd) < 0) goto error;
break;
case DB_SQL:
res->sql_cmd.s = (char*)pkg_malloc(cmd->table.len);
if (res->sql_cmd.s == NULL) {
ERR("mysql: Out of private memory\n");
goto error;
}
memcpy(res->sql_cmd.s,cmd->table.s, cmd->table.len);
res->sql_cmd.len = cmd->table.len;
break;
}
DB_SET_PAYLOAD(cmd, res);
/* In order to check all the parameters and results, we need to upload
* the command to the server. We need to do that here before we report
* back that the command was created successfully. Hence, this
* function requires the corresponding connection be established. We
* would not be able to check parameters if we don't do that there and
* that could result in repeated execution failures at runtime.
*/
if (upload_cmd(cmd)) goto error;
return 0;
error:
if (res) {
DB_SET_PAYLOAD(cmd, NULL);
db_drv_free(&res->gen);
if (res->sql_cmd.s) pkg_free(res->sql_cmd.s);
pkg_free(res);
}
return -1;
}
