Ziele Untersuchung
mit Columbo Integrität von
Datenbanken Interaktion und
Portierbarkeit Ergonomie der
Schnittstellen

Angebot Produkte Projekt Beratung

Mittel Analytik Modellierung Sprachen Algebra Logik Hardware Denken Kreativität

Zusammenhänge Gesellschaft Wirtschaft Branche Firma


products/Sources/formale Sprachen/Java/Openjdk/src/jdk.jpackage/share/native/common/ (Sun/Oracle ^©) Datei vom 13.11.2022 mit Größe 5 kB

Quelle app.cpp Sprache: C

/*
* Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.  Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/

#include "kludge_c++11.h"

#include <memory>
#include "app.h"
#include "Log.h"
#include "SysInfo.h"
#include "ErrorHandling.h"

namespace {
const std::string* theLastErrorMsg = 0;

NopLogAppender nopLogAppender;

class StandardLogAppender : public LogAppender {
public:
    virtual void append(const LogEvent& v) {
        std::cerr << "[" << v.logLevel << "] "
            << v.fileName
            << ":" << v.lineNum
            << ": " << v.message
            << std::endl;
    }
} standardLogAppender;

class LastErrorLogAppender : public LogAppender {
public:
    virtual void append(const LogEvent& v) {
        std::cerr << app::lastErrorMsg() << std::endl;
    }
} lastErrorLogAppender;

class ResetLastErrorMsgAtEndOfScope {
public:
    ResetLastErrorMsgAtEndOfScope() {
    }
    ~ResetLastErrorMsgAtEndOfScope() {
        JP_NO_THROW(theLastErrorMsg = 0);
    }
};

class SetLoggerAtEndOfScope {
public:
    SetLoggerAtEndOfScope(
            std::unique_ptr<WithExtraLogAppender>& withLogAppender,
            LogAppender* lastErrorLogAppender):
                withLogAppender(withLogAppender),
                lastErrorLogAppender(lastErrorLogAppender) {
    }

    ~SetLoggerAtEndOfScope() {
        JP_TRY;
        std::unique_ptr<WithExtraLogAppender> other(
                new WithExtraLogAppender(*lastErrorLogAppender));
        withLogAppender.swap(other);
        JP_CATCH_ALL;
    }

private:
    std::unique_ptr<WithExtraLogAppender>& withLogAppender;
    LogAppender* lastErrorLogAppender;
};

} // namespace

namespace app {
LogAppender& defaultLastErrorLogAppender() {
    return lastErrorLogAppender;
}

std::string lastErrorMsg() {
    if (theLastErrorMsg) {
        return *theLastErrorMsg;
    }
    return "";
}

bool isWithLogging() {
    // If JPACKAGE_DEBUG environment variable is set to "true"
    // logging is enabled.
    return SysInfo::getEnvVariable(
            std::nothrow, _T("JPACKAGE_DEBUG")) == _T("true");
}

int launch(const std::nothrow_t&,
        LauncherFunc func, LogAppender* lastErrorLogAppender) {
    if (isWithLogging()) {
        Logger::defaultLogger().setAppender(standardLogAppender);
    } else {
        Logger::defaultLogger().setAppender(nopLogAppender);
    }

    LOG_TRACE_FUNCTION();

    if (!lastErrorLogAppender) {
        lastErrorLogAppender = &defaultLastErrorLogAppender();
    }
    std::unique_ptr<WithExtraLogAppender> withLogAppender;
    std::string errorMsg;
    const ResetLastErrorMsgAtEndOfScope resetLastErrorMsg;

    JP_TRY;

    // This will temporary change log appenders of the default logger
    // to save log messages in the default and additional log appenders.
    // Log appenders config of the default logger will be restored to
    // the original state at function exit automatically.
    const SetLoggerAtEndOfScope setLogger(withLogAppender, lastErrorLogAppender);
    func();
    return 0;

    // The point of all these redefines is to save the last raw error message in
    // 'theLastErrorMsg' variable.
    // By default error messages are saved in exception instances with the details
    // of error origin (source file, function name, line number).
    // We don't want these details in user error messages. However we still want to
    // save full information about the last error in the default log appender.
#undef JP_HANDLE_ERROR
#undef JP_HANDLE_UNKNOWN_ERROR
#undef JP_CATCH_EXCEPTIONS
#define JP_HANDLE_ERROR(e) \
    do { \
        errorMsg = (tstrings::any() << e.what()).str(); \
        theLastErrorMsg = &errorMsg; \
        reportError(JP_SOURCE_CODE_POS, e); \
    } while(0)
#define JP_HANDLE_UNKNOWN_ERROR \
    do { \
        errorMsg = "Unknown error"; \
        theLastErrorMsg = &errorMsg; \
        reportUnknownError(JP_SOURCE_CODE_POS); \
    } while(0)
#define JP_CATCH_EXCEPTIONS \
    catch (const JpErrorBase& e) { \
        errorMsg = (tstrings::any() << e.rawMessage()).str(); \
        theLastErrorMsg = &errorMsg; \
        try { \
            throw; \
        } catch (const std::runtime_error& e) { \
            reportError(JP_SOURCE_CODE_POS, e); \
        } \
    } catch (const std::runtime_error& e) { \
        errorMsg = lastCRTError(); \
        theLastErrorMsg = &errorMsg; \
        reportError(JP_SOURCE_CODE_POS, e); \
    } \
    JP_CATCH_UNKNOWN_EXCEPTION

    JP_CATCH_ALL;

#undef JP_HANDLE_ERROR
#undef JP_HANDLE_UNKNOWN_ERROR
#undef JP_CATCH_EXCEPTIONS
#define JP_HANDLE_ERROR(e)      JP_REPORT_ERROR(e)
#define JP_HANDLE_UNKNOWN_ERROR JP_REPORT_UNKNOWN_ERROR
#define JP_CATCH_EXCEPTIONS     JP_DEFAULT_CATCH_EXCEPTIONS

    return 1;
}
} // namespace app

quality92%

¤ Dauer der Verarbeitung: 0.2 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.