LCOV - code coverage report
Current view: directory - tools/profiler - nsProfiler.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 78 0 0.0 %
Date: 2012-06-02 Functions: 14 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Initial Developer of the Original Code is
      16                 :  *   Mozilla Foundation
      17                 :  * Portions created by the Initial Developer are Copyright (C) 2011
      18                 :  * the Initial Developer. All Rights Reserved.
      19                 :  *
      20                 :  * Contributor(s):
      21                 :  *   Benoit Girard <bgirard@mozilla.com>
      22                 :  *
      23                 :  * Alternatively, the contents of this file may be used under the terms of
      24                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      25                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      26                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      27                 :  * of those above. If you wish to allow use of your version of this file only
      28                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      29                 :  * use your version of this file under the terms of the MPL, indicate your
      30                 :  * decision by deleting the provisions above and replace them with the notice
      31                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      32                 :  * the provisions above, a recipient may use your version of this file under
      33                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      34                 :  *
      35                 :  * ***** END LICENSE BLOCK ***** */
      36                 : 
      37                 : #include <string>
      38                 : #include <sstream>
      39                 : #ifdef MOZ_INSTRUMENT_EVENT_LOOP
      40                 : #include "EventTracer.h"
      41                 : #endif
      42                 : #include "sampler.h"
      43                 : #include "nsProfiler.h"
      44                 : #include "nsMemory.h"
      45                 : #include "shared-libraries.h"
      46                 : #include "nsString.h"
      47                 : #include "jsapi.h"
      48                 : 
      49                 : using std::string;
      50                 : 
      51               0 : NS_IMPL_ISUPPORTS1(nsProfiler, nsIProfiler)
      52                 : 
      53                 : 
      54               0 : nsProfiler::nsProfiler()
      55                 : {
      56               0 : }
      57                 : 
      58                 : 
      59                 : NS_IMETHODIMP
      60               0 : nsProfiler::StartProfiler(PRUint32 aInterval, PRUint32 aEntries,
      61                 :                           const char** aFeatures, PRUint32 aFeatureCount)
      62                 : {
      63               0 :   SAMPLER_START(aInterval, aEntries, aFeatures, aFeatureCount);
      64                 : #ifdef MOZ_INSTRUMENT_EVENT_LOOP
      65               0 :   mozilla::InitEventTracing();
      66                 : #endif
      67               0 :   return NS_OK;
      68                 : }
      69                 : 
      70                 : NS_IMETHODIMP
      71               0 : nsProfiler::StopProfiler()
      72                 : {
      73               0 :   SAMPLER_STOP();
      74               0 :   return NS_OK;
      75                 : }
      76                 : 
      77                 : NS_IMETHODIMP
      78               0 : nsProfiler::GetProfile(char **aProfile)
      79                 : {
      80               0 :   char *profile = SAMPLER_GET_PROFILE();
      81               0 :   if (profile) {
      82               0 :     PRUint32 len = strlen(profile);
      83                 :     char *profileStr = static_cast<char *>
      84               0 :                          (nsMemory::Clone(profile, (len + 1) * sizeof(char)));
      85               0 :     profileStr[len] = '\0';
      86               0 :     *aProfile = profileStr;
      87               0 :     free(profile);
      88                 :   }
      89               0 :   return NS_OK;
      90                 : }
      91                 : 
      92                 : static void
      93               0 : AddSharedLibraryInfoToStream(std::ostream& aStream, SharedLibrary& aLib)
      94                 : {
      95               0 :   aStream << "{";
      96               0 :   aStream << "\"start\":" << aLib.GetStart();
      97               0 :   aStream << ",\"end\":" << aLib.GetEnd();
      98               0 :   aStream << ",\"name\":\"" << aLib.GetName() << "\"";
      99               0 :   aStream << "}";
     100               0 : }
     101                 : 
     102                 : static std::string
     103               0 : GetSharedLibraryInfoString()
     104                 : {
     105               0 :   SharedLibraryInfo info = SharedLibraryInfo::GetInfoForSelf();
     106               0 :   if (info.GetSize() == 0)
     107               0 :     return "[]";
     108                 : 
     109               0 :   std::ostringstream os;
     110               0 :   os << "[";
     111               0 :   AddSharedLibraryInfoToStream(os, info.GetEntry(0));
     112                 : 
     113               0 :   for (size_t i = 1; i < info.GetSize(); i++) {
     114               0 :     os << ",";
     115               0 :     AddSharedLibraryInfoToStream(os, info.GetEntry(i));
     116                 :   }
     117                 : 
     118               0 :   os << "]";
     119               0 :   return os.str();
     120                 : }
     121                 : 
     122                 : NS_IMETHODIMP
     123               0 : nsProfiler::GetSharedLibraryInformation(nsAString& aOutString)
     124                 : {
     125               0 :   aOutString.Assign(NS_ConvertUTF8toUTF16(GetSharedLibraryInfoString().c_str()));
     126               0 :   return NS_OK;
     127                 : }
     128                 : 
     129                 : 
     130                 : 
     131               0 : NS_IMETHODIMP nsProfiler::GetProfileData(JSContext* aCx, jsval* aResult)
     132                 : {
     133               0 :   JSObject *obj = SAMPLER_GET_PROFILE_DATA(aCx);
     134               0 :   if (!obj)
     135               0 :     return NS_ERROR_FAILURE;
     136                 : 
     137               0 :   *aResult = OBJECT_TO_JSVAL(obj);
     138               0 :   return NS_OK;
     139                 : }
     140                 : 
     141                 : NS_IMETHODIMP
     142               0 : nsProfiler::IsActive(bool *aIsActive)
     143                 : {
     144               0 :   *aIsActive = SAMPLER_IS_ACTIVE();
     145               0 :   return NS_OK;
     146                 : }
     147                 : 
     148                 : NS_IMETHODIMP
     149               0 : nsProfiler::GetResponsivenessTimes(PRUint32 *aCount, double **aResult)
     150                 : {
     151               0 :   unsigned int len = 100;
     152               0 :   const double* times = SAMPLER_GET_RESPONSIVENESS();
     153               0 :   if (!times) {
     154               0 :     *aCount = 0;
     155               0 :     *aResult = nsnull;
     156               0 :     return NS_OK;
     157                 :   }
     158                 : 
     159                 :   double *fs = static_cast<double *>
     160               0 :                        (nsMemory::Clone(times, len * sizeof(double)));
     161                 : 
     162               0 :   *aCount = len;
     163               0 :   *aResult = fs;
     164                 : 
     165               0 :   return NS_OK;
     166                 : }
     167                 : 
     168                 : NS_IMETHODIMP
     169               0 : nsProfiler::GetFeatures(PRUint32 *aCount, char ***aFeatures)
     170                 : {
     171               0 :   PRUint32 len = 0;
     172                 : 
     173               0 :   const char **features = SAMPLER_GET_FEATURES();
     174               0 :   if (!features) {
     175               0 :     *aCount = 0;
     176               0 :     *aFeatures = nsnull;
     177               0 :     return NS_OK;
     178                 :   }
     179                 : 
     180               0 :   while (features[len]) {
     181               0 :     len++;
     182                 :   }
     183                 : 
     184                 :   char **featureList = static_cast<char **>
     185               0 :                        (nsMemory::Alloc(len * sizeof(char*)));
     186                 : 
     187               0 :   for (size_t i = 0; i < len; i++) {
     188               0 :     PRUint32 strLen = strlen(features[i]);
     189               0 :     featureList[i] = static_cast<char *>
     190               0 :                          (nsMemory::Clone(features[i], (strLen + 1) * sizeof(char)));
     191                 :   }
     192                 : 
     193               0 :   *aFeatures = featureList;
     194               0 :   *aCount = len;
     195               0 :   return NS_OK;
     196                 : }

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