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testprstrm.cpp

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is the Netscape Portable Runtime (NSPR).
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998-2000
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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#include "prinit.h"
#include "prstrms.h"
#include "prio.h"
#include <string.h>
#include <stdio.h>
#if defined(XP_UNIX) || defined(XP_OS2_EMX)
#include <sys/types.h>
#include <sys/stat.h>
#endif

const unsigned int MaxCnt = 1;

void threadwork(void *mytag);


typedef struct threadarg {
    void *mytag;
} threadarg;

void 
#ifdef XP_OS2_VACPP
_Optlink
#endif
threadmain(void *mytag)
{
    threadarg arg;

    arg.mytag = mytag;

    threadwork(&arg);
}


void
threadwork(void *_arg)
{
      threadarg *arg = (threadarg *)_arg;
      unsigned int i;

      char fname1[256];
      char fname2[256];

      strcpy(fname1, (char *)arg->mytag);
      strcpy(fname2, (char *)arg->mytag);
      strcat(fname2, "2");
      PR_Delete(fname1);
      PR_Delete(fname2);

      PRfilebuf *fb[MaxCnt];
      PRifstream *ifs[MaxCnt];
      PRofstream *ofs[MaxCnt];
      int mode = 0;
#ifdef XP_UNIX
      mode = S_IRUSR|S_IWUSR|S_IRGRP|S_IRGRP|S_IWOTH|S_IROTH;
#endif

      //
      // Allocate a bunch
      cout << "Testing unused filebufs ----------------" << endl;
      for (i=0; i < MaxCnt; i++){
            fb[i] = new PRfilebuf;
      }
      // Delete them
      for (i=0; i < MaxCnt; i++){
            delete fb[i];
      }
      cout << "Unused filebufs complete ---------------" << endl;

      //
      // Allocate a bunch
      cout << "Testing unused ifstream -----------------" << endl;
      for (i=0; i < MaxCnt; i++){
        ifs[i] = new PRifstream;
      }
      //
      // Delete them
      for (i=0; i < MaxCnt; i++){
        delete ifs[i];
      }
      cout << "Unused ifstream complete ----------------" << endl;
      //
      // Allocate a bunch
      cout << "Testing unused ofstream -----------------" << endl;
      for (i=0; i < MaxCnt; i++){
            ofs[i] = new PRofstream;
      }
      for (i=0; i < MaxCnt; i++){
        *(ofs[i]) << "A"; // Write a bit
        delete ofs[i]; // Delete it.
      }
      cout << "Unused ofstream complete ----------------" << endl;

      cout << "Testing use of ofstream 1 (extra filebuf allocated) ---------" << endl;
      PRofstream *aos = new PRofstream(fname1, ios::out|ios::ate, mode);
      for (i=0; i < MaxCnt; i++){
        for (int j=0; j < 8192; j++)
            *aos << "AaBbCcDdEeFfGg" << endl;
            fb[i] = new PRfilebuf; // Allocate as we go to hack at the heap
      }
      //
      // Delete the extra foo we allocated
      for (i=0; i < MaxCnt; i++){
        delete fb[i];
      }
      aos->flush(); // Explicit flush
      delete aos;
      cout << "Testing use of ofstream 1 complete (extra filebuf deleted) --" << endl;
      cout << "Testing use of ofstream 2 (extra filebuf allocated) ---------" << endl;
      PRofstream *aos2 = new PRofstream(fname2, ios::out, mode);

      for (i=0; i < MaxCnt; i++){
          *aos2 << "AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz";
      }
      // Force flushing in the dtor
      delete aos2;
      cout << "Testing use of ofstream 2 complete (extra filebuf deleted) --" << endl;
      char line[1024];
      cout << "Testing use of ifstream 1 (stack allocation) -------------" << endl;
      PRifstream ais(fname1);
      for (i=0; i < MaxCnt; i++){
            ais >> line;
      }
      cout << "Testing use of ifstream 1 complete -----------------------" << endl;
      cout << "Testing use of ifstream 2 ----------------------" << endl;
      PRifstream *ais2 = new PRifstream(fname2);
      char achar;
      for (i=0; i < MaxCnt*10; i++){
            *ais2 >> achar;
      }
      delete ais2;
      cout << "Testing use of ifstream 2 complete -------------" << endl;
}

#define STACKSIZE 1024*1024
int
main(int argc, char **argv)
{
      PR_Init(PR_SYSTEM_THREAD, PR_PRIORITY_NORMAL, 256);
      threadmain("TestFile");
      PRThread *thr1 = PR_CreateThread(PR_SYSTEM_THREAD, 
                               threadmain, 
                               (void *)"TestFile1",
                               PR_PRIORITY_NORMAL,
                               PR_GLOBAL_THREAD,
                               PR_JOINABLE_THREAD,
                               STACKSIZE);
      PRThread *thr2 = PR_CreateThread(PR_SYSTEM_THREAD, 
                               threadmain, 
                               (void *)"TestFile2",
                               PR_PRIORITY_NORMAL,
                               PR_GLOBAL_THREAD,
                               PR_JOINABLE_THREAD,
                               STACKSIZE);

      PRThread *thr3 = PR_CreateThread(PR_SYSTEM_THREAD, 
                               threadmain, 
                               (void *)"TestFile3",
                               PR_PRIORITY_NORMAL,
                               PR_GLOBAL_THREAD,
                               PR_JOINABLE_THREAD,
                               STACKSIZE);
      PR_JoinThread(thr1);
      PR_JoinThread(thr2);
      PR_JoinThread(thr3);
      return 0;
}


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