Quelle nmtCommon.cpp Sprache: C

/*
* Copyright (c) 2013, 2021, 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.
*
* 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 "precompiled.hpp"
#include "services/nmtCommon.hpp"
#include "utilities/globalDefinitions.hpp"

STATIC_ASSERT(NMT_off > NMT_unknown);
STATIC_ASSERT(NMT_summary > NMT_off);
STATIC_ASSERT(NMT_detail > NMT_summary);

#define MEMORY_TYPE_DECLARE_NAME(type, human_readable) \
  { #type, human_readable },

NMTUtil::S NMTUtil::_strings[] = {
  MEMORY_TYPES_DO(MEMORY_TYPE_DECLARE_NAME)
};

const char* NMTUtil::scale_name(size_t scale) {
  switch(scale) {
    case 1: return "";
    case K: return "KB";
    case M: return "MB";
    case G: return "GB";
  }
  ShouldNotReachHere();
  return NULL;
}

size_t NMTUtil::scale_from_name(const char* scale) {
  assert(scale != NULL, "Null pointer check");
  if (strcasecmp(scale, "1") == 0 || strcasecmp(scale, "b") == 0) {
    return 1;
  } else if (strcasecmp(scale, "kb") == 0 || strcasecmp(scale, "k") == 0) {
    return K;
  } else if (strcasecmp(scale, "mb") == 0 || strcasecmp(scale, "m") == 0) {
    return M;
  } else if (strcasecmp(scale, "gb") == 0 || strcasecmp(scale, "g") == 0) {
    return G;
  } else {
    return 0; // Invalid value
  }
  return K;
}

const char* NMTUtil::tracking_level_to_string(NMT_TrackingLevel lvl) {
  switch(lvl) {
    case NMT_unknown: return "unknown"; break;
    case NMT_off:     return "off"; break;
    case NMT_summary: return "summary"; break;
    case NMT_detail:  return "detail"; break;
    default:          return "invalid"; break;
  }
}

// Returns the parsed level; NMT_unknown if string is invalid
NMT_TrackingLevel NMTUtil::parse_tracking_level(const char* s) {
  if (s != NULL) {
    if (strcmp(s, "summary") == 0) {
      return NMT_summary;
    } else if (strcmp(s, "detail") == 0) {
      return NMT_detail;
    } else if (strcmp(s, "off") == 0) {
      return NMT_off;
    }
  }
  return NMT_unknown;
}

MEMFLAGS NMTUtil::string_to_flag(const char* s) {
  for (int i = 0; i < mt_number_of_types; i ++) {
    assert(::strlen(_strings[i].enum_s) > 2, "Sanity"); // should always start with "mt"
    if (::strcasecmp(_strings[i].human_readable, s) == 0 ||
        ::strcasecmp(_strings[i].enum_s, s) == 0 ||
        ::strcasecmp(_strings[i].enum_s + 2, s) == 0) // "mtXXX" -> match also "XXX" or "xxx"
    {
      return (MEMFLAGS)i;
    }
  }
  return mtNone;
}

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