/**
 * MXS-2609: Maxscale crash in RWSplitSession::retry_master_query()
 *
 * https://jira.mariadb.org/browse/MXS-2609
 *
 * This test attempts to reproduce the crash described in MXS-2609 which
 * occurred during a retrying attempt of a session command that failed on
 * the master.
 */


#include "testconnections.h"

int main(int argc, char** argv)
{
    TestConnections test(argc, argv);

    auto block = [&test](int n){
                     test.repl->block_node(n);
                     test.maxscales->wait_for_monitor();
                     test.repl->unblock_node(n);
                     test.maxscales->wait_for_monitor();
                 };
    auto conn = test.maxscales->rwsplit();

    //
    // Test 1: Master failure mid-reconnect should trigger query replay
    //

    test.expect(conn.connect(), "First connect should work: %s", conn.error());

    // Queue up session commands so that the history replay takes some time
    for (int i = 0; i < 10; i++)
    {
        conn.query("SET @a = (SLEEP 1)");
    }

    block(0);

    test.set_timeout(90);

    std::thread([&](){
                    sleep(5);
                    block(0);
                }).detach();

    test.expect(conn.query("SELECT @@last_insert_id"), "Query should work: %s", conn.error());

    test.stop_timeout();
    conn.disconnect();

    //
    // Test 2: Exceed history limit and trigger a master reconnection
    //

    test.maxctrl("alter service RW-Split-Router max_sescmd_history 2");
    test.expect(conn.connect(), "Second should work: %s", conn.error());

    for (int i = 0; i < 5; i++)
    {
        conn.query("SET @a = (SLEEP 1)");
    }

    block(0);

    test.expect(!conn.query("SELECT @@last_insert_id"), "Query should fail");

    return test.global_result;
}