tool/CommandStates.cpp
author Florian Pose <fp@igh-essen.com>
Fri, 25 Jul 2008 08:52:45 +0000
changeset 1146 f18d124d7fbc
parent 1144 7dbfdd61812c
child 1151 1fc1535dec29
permissions -rw-r--r--
Moved slaveState() to Command::alStateString().
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/*****************************************************************************
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 *
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 * $Id$
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 *
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 ****************************************************************************/
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#include <iostream>
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using namespace std;
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#include "CommandStates.h"
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/*****************************************************************************/
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CommandStates::CommandStates():
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    Command("states", "Request application-layer states.")
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{
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}
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/*****************************************************************************/
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string CommandStates::helpString() const
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{
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    stringstream str;
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    str << getName() << " [OPTIONS] <STATE>" << endl
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        << endl
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        << getBriefDescription() << endl
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        << endl
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        << "Arguments:" << endl
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        << "  STATE can be 'INIT', 'PREOP', 'SAFEOP', or 'OP'." << endl
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        << endl
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        << "Command-specific options:" << endl
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        << "  --slave -s <index>  Positive numerical ring position," << endl
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        << "                      or 'all' for all slaves (default)." << endl
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        << endl
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        << numericInfo();
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    return str.str();
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}
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/****************************************************************************/
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void CommandStates::execute(MasterDevice &m, const StringVector &args)
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{
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    stringstream err;
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    string stateStr;
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    uint8_t state = 0x00;
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    if (args.size() != 1) {
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        err << "'" << getName() << "' takes exactly one argument!";
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        throwInvalidUsageException(err);
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    }
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    stateStr = args[0];
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    transform(stateStr.begin(), stateStr.end(),
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            stateStr.begin(), (int (*) (int)) std::toupper);
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    if (stateStr == "INIT") {
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        state = 0x01;
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    } else if (stateStr == "PREOP") {
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        state = 0x02;
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    } else if (stateStr == "SAFEOP") {
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        state = 0x04;
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    } else if (stateStr == "OP") {
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        state = 0x08;
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    } else {
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        err << "Invalid state '" << args[0] << "'!";
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        throwInvalidUsageException(err);
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    }
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    m.open(MasterDevice::ReadWrite);
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    if (slavePosition == -1) {
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        unsigned int i, numSlaves = m.slaveCount();
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        for (i = 0; i < numSlaves; i++)
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            m.requestState(i, state);
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    } else {
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        m.requestState(slavePosition, state);
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    }
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}
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/*****************************************************************************/