Mercurial > hg > monetdb-java
view tests/Test_Cforkbomb.java @ 833:e890195256ac
Update copyright for the new year, move to MonetDB Foundation, add SPDX.
author | Sjoerd Mullender <sjoerd@acm.org> |
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date | Fri, 29 Dec 2023 14:37:42 +0100 (15 months ago) |
parents | aeb268156580 |
children | d416e9b6b3d0 |
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/* * SPDX-License-Identifier: MPL-2.0 * * 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 2024 MonetDB Foundation; * Copyright August 2008 - 2023 MonetDB B.V.; * Copyright 1997 - July 2008 CWI. */ 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(); } } }