Quellcode-Bibliothek

^© Kompilation durch diese Firma

[Weder Korrektheit noch Funktionsfähigkeit der Software werden zugesichert.]

Datei: safefetch.hpp Sprache: C

/*
* Copyright (c) 1997, 2022, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2022 SAP SE. 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.
*
* 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.
*
*/

#ifndef SHARE_RUNTIME_SAFEFETCH_HPP
#define SHARE_RUNTIME_SAFEFETCH_HPP

#include "utilities/macros.hpp"

// Safefetch allows to load a value from a location that's not known
// to be valid. If the load causes a fault, the error value is returned.

#ifdef _WIN32
  // Windows uses Structured Exception Handling
  #include "safefetch_windows.hpp"
#elif defined(ZERO) || defined (_AIX)
  // These platforms implement safefetch via Posix sigsetjmp/longjmp.
  // This is slower than the other methods and uses more thread stack,
  // but its safe and portable.
  #include "safefetch_sigjmp.hpp"
  #define SAFEFETCH_METHOD_SIGSETJMP
#else
  // All other platforms use static assembly
  #include "safefetch_static.hpp"
  #define SAFEFETCH_METHOD_STATIC_ASSEMBLY
#endif

inline int SafeFetch32(int* adr, int errValue) {
  return SafeFetch32_impl(adr, errValue);
}

inline intptr_t SafeFetchN(intptr_t* adr, intptr_t errValue) {
  return SafeFetchN_impl(adr, errValue);
}

#endif // SHARE_RUNTIME_SAFEFETCH_HPP

¤ Dauer der Verarbeitung: 0.20 Sekunden (vorverarbeitet) ¤

Download des Quellennavigators
Download des sprechenden Kalenders
in der Quellcodebibliothek suchen

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.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.