/* create an exception for the current MySQL error */
static stExcept *createMySqlExceptv(MySqlDb *dbImpl, const char *msg, va_list args) {
char *fmtMsg = stSafeCDynFmtv(msg, args);
const char *exId = isMysqlRetryError(mysql_errno(dbImpl->conn)) ? ST_KV_DATABASE_RETRY_TRANSACTION_EXCEPTION_ID : ST_KV_DATABASE_EXCEPTION_ID;
stExcept *except = stExcept_new(exId, "%s: %s (%d)", fmtMsg, mysql_error(dbImpl->conn), mysql_errno(dbImpl->conn));
stSafeCFree(fmtMsg);
return except;
}
/* print set for debugging */
void malnSet_dumpv(struct malnSet *malnSet, FILE *fh, const char *label, va_list args) {
char *fmtLabel = stSafeCDynFmtv(label, args);
fprintf(fh, "malnSet: begin %s\n", fmtLabel);
struct malnBlkSetIterator *iter = malnBlkSet_getIterator(malnSet->blks);
struct malnBlk *blk;
while ((blk = malnBlkSetIterator_getNext(iter)) != NULL) {
fputs(" ", fh);
malnBlk_dump(blk, fh, malnBlk_dumpDefault, " blk");
}
malnBlkSetIterator_destruct(iter);
fprintf(fh, "malnSet: end %s\n", fmtLabel);
freeMem(fmtLabel);
}
/* start an SQL query, formatting arguments into the query */
static MYSQL_RES *queryStartv(MySqlDb *dbImpl, const char *query, va_list args) {
char *sql = stSafeCDynFmtv(query, args);
if (mysql_real_query(dbImpl->conn, sql, strlen(sql)) != 0) {
stExcept *ex = createMySqlExcept(dbImpl, "query failed \"%0.60s\"", sql);
stSafeCFree(sql);
stThrow(ex);
}
MYSQL_RES *rs = mysql_use_result(dbImpl->conn);
if ((rs == NULL) && (mysql_errno(dbImpl->conn) != 0)) {
stExcept *ex = createMySqlExcept(dbImpl, "query failed \"%0.60s\"", sql);
stSafeCFree(sql);
stThrow(ex);
}
stSafeCFree(sql);
return rs;
}
stExcept *stExcept_newv(const char *id, const char *msg, va_list args) {
stExcept *except = stSafeCCalloc(sizeof(stExcept));
except->id = id;
except->msg = stSafeCDynFmtv(msg, args);
return except;
}