xpcom/tests/TestAtoms.cpp

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   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 Original Code is mozilla.org code.
  16  *
  17  * The Initial Developer of the Original Code is
  18  * Netscape Communications Corporation.
  19  * Portions created by the Initial Developer are Copyright (C) 1998
  20  * the Initial Developer. All Rights Reserved.
  21  *
  22  * Contributor(s):
  23  *
  24  * Alternatively, the contents of this file may be used under the terms of
  25  * either of the GNU General Public License Version 2 or later (the "GPL"),
  26  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  27  * in which case the provisions of the GPL or the LGPL are applicable instead
  28  * of those above. If you wish to allow use of your version of this file only
  29  * under the terms of either the GPL or the LGPL, and not to allow others to
  30  * use your version of this file under the terms of the MPL, indicate your
  31  * decision by deleting the provisions above and replace them with the notice
  32  * and other provisions required by the GPL or the LGPL. If you do not delete
  33  * the provisions above, a recipient may use your version of this file under
  34  * the terms of any one of the MPL, the GPL or the LGPL.
  35  *
  36  * ***** END LICENSE BLOCK ***** */
  37 #include "nsIAtom.h"
  38 #include "nsString.h"
  39 #include "nsReadableUtils.h"
  40 #include "prprf.h"
  41 #include "prtime.h"
  42 #include <stdio.h>
  43
  44 extern "C" int _CrtSetDbgFlag(int);
  45
  46 int main(int argc, char** argv)
  47 {
  48   FILE* fp = fopen("words.txt", "r");
  49   if (nsnull == fp) {
  50     printf("can't open words.txt\n");
  51     return -1;
  52   }
  53
  54   PRInt32 count = 0;
  55   PRUnichar** strings = new PRUnichar*[60000];
  56   nsIAtom** ids = new nsIAtom*[60000];
  57   nsAutoString s1, s2;
  58   PRTime start = PR_Now();
  59   PRInt32 i;
  60   for (i = 0; i < 60000; i++) {
  61     char buf[1000];
  62     char* s = fgets(buf, sizeof(buf), fp);
  63     if (nsnull == s) {
  64       break;
  65     }
  66     nsCAutoString sb;
  67     sb.Assign(buf);
  68     strings[count++] = ToNewUnicode(sb);
  69     ToUpperCase(sb);
  70     strings[count++] = ToNewUnicode(sb);
  71   }
  72   PRTime end0 = PR_Now();
  73
  74   // Find and create idents
  75   for (i = 0; i < count; i++) {
  76     ids[i] = NS_NewAtom(strings[i]);
  77   }
  78   PRUnichar qqs[1]; qqs[0] = 0;
  79   nsIAtom* qq = NS_NewAtom(qqs);
  80   PRTime end1 = PR_Now();
  81
  82   // Now make sure we can find all the idents we just made
  83   for (i = 0; i < count; i++) {
  84     const char *utf8String;
  85     ids[i]->GetUTF8String(&utf8String);
  86     nsIAtom* id = NS_NewAtom(utf8String);
  87     if (id != ids[i]) {
  88       id->ToString(s1);
  89       ids[i]->ToString(s2);
  90       printf("find failed: id='%s' ids[%d]='%s'\n",
  91              NS_LossyConvertUTF16toASCII(s1).get(), i, NS_LossyConvertUTF16toASCII(s2).get());
  92       return -1;
  93     }
  94     NS_RELEASE(id);
  95   }
  96   PRTime end2 = PR_Now();
  97
  98   // Destroy all the atoms we just made
  99   NS_RELEASE(qq);
 100   for (i = 0; i < count; i++) {
 101     NS_RELEASE(ids[i]);
 102   }
 103
 104   // Print out timings
 105   PRTime end3 = PR_Now();
 106   PRTime creates, finds, lookups, dtor, ustoms;
 107   LL_I2L(ustoms, 1000);
 108   LL_SUB(creates, end0, start);
 109   LL_DIV(creates, creates, ustoms);
 110   LL_SUB(finds, end1, end0);
 111   LL_DIV(finds, finds, ustoms);
 112   LL_SUB(lookups, end2, end1);
 113   LL_DIV(lookups, lookups, ustoms);
 114   LL_SUB(dtor, end3, end2);
 115   char buf[500];
 116   PR_snprintf(buf, sizeof(buf), "making %d ident strings took %lldms",
 117               count, creates);
 118   puts(buf);
 119   PR_snprintf(buf, sizeof(buf), "%d new idents took %lldms",
 120               count, finds);
 121   puts(buf);
 122   PR_snprintf(buf, sizeof(buf), "%d ident lookups took %lldms",
 123               count, lookups);
 124   puts(buf);
 125   PR_snprintf(buf, sizeof(buf), "dtor took %lldusec", dtor);
 126   puts(buf);
 127
 128   printf("%d live atoms\n", NS_GetNumberOfAtoms());
 129   NS_POSTCONDITION(0 == NS_GetNumberOfAtoms(), "dangling atoms");
 130
 131   return 0;
 132 }