LCOV - code coverage report
Current view: directory - objdir/dist/include - shared-libraries.h (source / functions) Found Hit Coverage
Test: app.info Lines: 3 0 0.0 %
Date: 2012-04-07 Functions: 2 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* vim:set ts=2 sw=2 sts=2 et cindent: */
       3                 : /* ***** BEGIN LICENSE BLOCK *****
       4                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       5                 :  *
       6                 :  * The contents of this file are subject to the Mozilla Public License Version
       7                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       8                 :  * the License. You may obtain a copy of the License at
       9                 :  * http://www.mozilla.org/MPL/
      10                 :  *
      11                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      12                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      13                 :  * for the specific language governing rights and limitations under the
      14                 :  * License.
      15                 :  *
      16                 :  * The Original Code is Mozilla code.
      17                 :  *
      18                 :  * The Initial Developer of the Original Code is the Mozilla Foundation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 2011
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *  Jeff Muizelaar <jmuizelaar@mozilla.com>
      24                 :  *
      25                 :  * Alternatively, the contents of this file may be used under the terms of
      26                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      27                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      28                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      29                 :  * of those above. If you wish to allow use of your version of this file only
      30                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      31                 :  * use your version of this file under the terms of the MPL, indicate your
      32                 :  * decision by deleting the provisions above and replace them with the notice
      33                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      34                 :  * the provisions above, a recipient may use your version of this file under
      35                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      36                 :  *
      37                 :  * ***** END LICENSE BLOCK ***** */
      38                 : 
      39                 : #ifndef SHARED_LIBRARIES_H_
      40                 : #define SHARED_LIBRARIES_H_
      41                 : 
      42                 : #ifndef MOZ_ENABLE_PROFILER_SPS
      43                 : #error This header does not have a useful implementation on your platform!
      44                 : #endif
      45                 : 
      46                 : #include <algorithm>
      47                 : #include <vector>
      48                 : #include <string.h>
      49                 : #include <stdlib.h>
      50                 : #include <mozilla/StandardInteger.h>
      51                 : #include <nsID.h>
      52                 : 
      53                 : class SharedLibrary {
      54                 : public:
      55                 : 
      56                 :   SharedLibrary(unsigned long aStart,
      57                 :                 unsigned long aEnd,
      58                 :                 unsigned long aOffset,
      59                 : #ifdef XP_WIN
      60                 :                 nsID aPdbSignature,
      61                 :                 unsigned long aPdbAge,
      62                 :                 char *aPdbName,
      63                 : #endif
      64                 :                 char *aName)
      65                 :     : mStart(aStart)
      66                 :     , mEnd(aEnd)
      67                 :     , mOffset(aOffset)
      68                 : #ifdef XP_WIN
      69                 :     , mPdbSignature(aPdbSignature)
      70                 :     , mPdbAge(aPdbAge)
      71                 :     , mPdbName(strdup(aPdbName))
      72                 : #endif
      73                 :     , mName(strdup(aName))
      74                 :   {}
      75                 : 
      76                 :   SharedLibrary(const SharedLibrary& aEntry)
      77                 :     : mStart(aEntry.mStart)
      78                 :     , mEnd(aEntry.mEnd)
      79                 :     , mOffset(aEntry.mOffset)
      80                 : #ifdef XP_WIN
      81                 :     , mPdbSignature(aEntry.mPdbSignature)
      82                 :     , mPdbAge(aEntry.mPdbAge)
      83                 :     , mPdbName(strdup(aEntry.mPdbName))
      84                 : #endif
      85                 :     , mName(strdup(aEntry.mName))
      86                 :   {}
      87                 : 
      88                 :   SharedLibrary& operator=(const SharedLibrary& aEntry)
      89                 :   {
      90                 :     // Gracefully handle self assignment
      91                 :     if (this == &aEntry) return *this;
      92                 : 
      93                 :     mStart = aEntry.mStart;
      94                 :     mEnd = aEntry.mEnd;
      95                 :     mOffset = aEntry.mOffset;
      96                 : #ifdef XP_WIN
      97                 :     mPdbSignature = aEntry.mPdbSignature;
      98                 :     mPdbAge = aEntry.mPdbAge;
      99                 :     if (mPdbName)
     100                 :       free(mPdbName);
     101                 :     mPdbName = strdup(aEntry.mPdbName);
     102                 : #endif
     103                 :     if (mName)
     104                 :       free(mName);
     105                 :     mName = strdup(aEntry.mName);
     106                 :     return *this;
     107                 :   }
     108                 : 
     109                 :   bool operator==(const SharedLibrary& other) const
     110                 :   {
     111                 :     bool equal = ((mStart == other.mStart) &&
     112                 :                   (mEnd == other.mEnd) &&
     113                 :                   (mOffset == other.mOffset) &&
     114                 :                   (mName && other.mName && (strcmp(mName, other.mName) == 0)));
     115                 : #ifdef XP_WIN
     116                 :     equal = equal &&
     117                 :             (mPdbSignature.Equals(other.mPdbSignature)) &&
     118                 :             (mPdbAge == other.mPdbAge) &&
     119                 :             (mPdbName && other.mPdbName && (strcmp(mPdbName, other.mPdbName) == 0));
     120                 : #endif
     121                 :     return equal;
     122                 :   }
     123                 : 
     124                 :   ~SharedLibrary()
     125                 :   {
     126                 : #ifdef XP_WIN
     127                 :     free(mPdbName);
     128                 :     mPdbName = NULL;
     129                 : #endif
     130                 :     free(mName);
     131                 :     mName = NULL;
     132                 :   }
     133                 : 
     134               0 :   uintptr_t GetStart() const { return mStart; }
     135                 :   uintptr_t GetEnd() const { return mEnd; }
     136                 : #ifdef XP_WIN
     137                 :   nsID GetPdbSignature() const { return mPdbSignature; }
     138                 :   uint32_t GetPdbAge() const { return mPdbAge; }
     139                 :   char* GetPdbName() const { return mPdbName; }
     140                 : #endif
     141                 :   char* GetName() const { return mName; }
     142                 : 
     143                 : private:
     144                 :   explicit SharedLibrary() {}
     145                 : 
     146                 :   uintptr_t mStart;
     147                 :   uintptr_t mEnd;
     148                 :   uintptr_t mOffset;
     149                 : #ifdef XP_WIN
     150                 :   // Windows-specific PDB file identifiers
     151                 :   nsID mPdbSignature;
     152                 :   uint32_t mPdbAge;
     153                 :   char *mPdbName;
     154                 : #endif
     155                 :   char *mName;
     156                 : };
     157                 : 
     158                 : static bool
     159               0 : CompareAddresses(const SharedLibrary& first, const SharedLibrary& second)
     160                 : {
     161               0 :   return first.GetStart() < second.GetStart();
     162                 : }
     163                 : 
     164                 : class SharedLibraryInfo {
     165                 : public:
     166                 :   static SharedLibraryInfo GetInfoForSelf();
     167                 :   SharedLibraryInfo() {}
     168                 : 
     169                 :   void AddSharedLibrary(SharedLibrary entry)
     170                 :   {
     171                 :     mEntries.push_back(entry);
     172                 :   }
     173                 : 
     174                 :   SharedLibrary& GetEntry(size_t i)
     175                 :   {
     176                 :     return mEntries[i];
     177                 :   }
     178                 : 
     179                 :   // Removes items in the range [first, last)
     180                 :   // i.e. element at the "last" index is not removed
     181                 :   void RemoveEntries(size_t first, size_t last)
     182                 :   {
     183                 :     mEntries.erase(mEntries.begin() + first, mEntries.begin() + last);
     184                 :   }
     185                 : 
     186                 :   bool Contains(const SharedLibrary& searchItem) const
     187                 :   {
     188                 :     return (mEntries.end() !=
     189                 :               std::find(mEntries.begin(), mEntries.end(), searchItem));
     190                 :   }
     191                 : 
     192                 :   size_t GetSize() const
     193                 :   {
     194                 :     return mEntries.size();
     195                 :   }
     196                 : 
     197                 :   void SortByAddress()
     198                 :   {
     199                 :     std::sort(mEntries.begin(), mEntries.end(), CompareAddresses);
     200                 :   }
     201                 : 
     202                 :   void Clear()
     203                 :   {
     204                 :     mEntries.clear();
     205                 :   }
     206                 : 
     207                 : private:
     208                 :   std::vector<SharedLibrary> mEntries;
     209                 : };
     210                 : 
     211                 : #endif

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