Mercurial > hg > monetdb-java
view tests/Test_Cforkbomb.java @ 483:a80b5db244b8 v3.1
Updated release numbers in preparation for a release.
author | Sjoerd Mullender <sjoerd@acm.org> |
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date | Mon, 14 Jun 2021 10:05:47 +0200 (2021-06-14) |
parents | bf9f6b6ecf40 |
children | 6aa38e8c0f2d |
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/* * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. * * Copyright 1997 - July 2008 CWI, August 2008 - 2021 MonetDB B.V. */ import java.sql.*; import java.util.*; public class Test_Cforkbomb { private static String args[]; static class Worker extends Thread { private int id; public Worker(int id) { this.id = id; } public void run() { try { System.out.print("Establishing Connection " + id + "..."); Connection con = DriverManager.getConnection(args[0]); System.out.println(" done..."); // do something with the connection to test if it works Statement stmt = con.createStatement(); ResultSet rs = stmt.executeQuery("SELECT " + id); if (!rs.next()) { System.out.println("thread " + id + " got no response from server :("); } else { if (rs.getInt(1) == id) { System.out.println("thread " + id + ": connection ok"); } else { System.out.println("thread " + id + ": got garbage: " + rs.getString(1)); } } con.close(); } catch (SQLException e) { System.out.println("thread " + id + " unhappy: " + e.toString()); } } } public static void main(String[] args) throws Exception { Test_Cforkbomb.args = args; // just DoS the server full throttle :) int i; for (i = 0; i < 200; i++) { Worker w = new Worker(i); w.start(); } } }