tpd.cpp

Netscape NSPR库源码

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 
 * 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 Netscape are 
 * Copyright (C) 1998-2000 Netscape Communications Corporation.  All
 * Rights Reserved.
 * 
 * Contributor(s):
 * 
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL"), in which case the provisions of the GPL are applicable 
 * instead of those above.  If you wish to allow use of your 
 * version of this file only under the terms of the GPL and not to
 * allow others to use your version of this file under the MPL,
 * indicate your decision by deleting the provisions above and
 * replace them with the notice and other provisions required by
 * the GPL.  If you do not delete the provisions above, a recipient
 * may use your version of this file under either the MPL or the
 * GPL.
 */

/*
** File:        tpd.cpp
** Description: Exercising the thread private data bailywick.
*/

#include "prlog.h"
#include "prprf.h"
#include "rcthread.h"

#include <string.h>

#include "plgetopt.h"

/*
** class MyThread
*/
class MyThread: public RCThread
{
public:
    MyThread();

private:
    ~MyThread();
    void RootFunction();
};  /* MyThread */

/*
** class MyPrivateData
*/
class MyPrivateData: public RCThreadPrivateData
{
public:
    virtual ~MyPrivateData();

    MyPrivateData();
    MyPrivateData(char*);
    MyPrivateData(const MyPrivateData&);

    void Release();

private:
    char *string;
};  /* MyPrivateData */

static PRUintn key[128];
static PRIntn debug = 0;
static PRBool failed = PR_FALSE;
static PRBool should = PR_TRUE;
static PRBool did = PR_TRUE;
static PRFileDesc *fout = NULL;

static void PrintProgress(PRIntn line)
{
    failed = failed || (should && !did);
    failed = failed || (!should && did);
    if (debug > 0)
    {
        PR_fprintf(
            fout, "@ line %d destructor should %shave been called and was%s\n",
            line, ((should) ? "" : "NOT "), ((did) ? "" : " NOT"));
    }
}  /* PrintProgress */

static void MyAssert(const char *expr, const char *file, PRIntn line)
{
    if (debug > 0)
        (void)PR_fprintf(fout, "'%s' in file: %s: %d\n", expr, file, line);
}  /* MyAssert */

#define MY_ASSERT(_expr) \
    ((_expr)?((void)0):MyAssert(# _expr,__FILE__,__LINE__))

int main(PRIntn argc, char *argv[])
{
    PRStatus rv;
    PRUintn keys;
    MyThread *thread;
    const RCThreadPrivateData *pd;
    PLOptStatus os;
    PLOptState *opt = PL_CreateOptState(argc, argv, "d");
    RCThread *primordial = RCThread::WrapPrimordialThread();
    while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
    {
        if (PL_OPT_BAD == os) continue;
        switch (opt->option)
        {
        case 'd':  /* debug mode */
            debug = PR_TRUE;
            break;
         default:
            break;
        }
    }
    PL_DestroyOptState(opt);

    fout = PR_STDOUT;

    MyPrivateData extension = MyPrivateData("EXTENSION");
    MyPrivateData key_string[] = {
        "Key #0", "Key #1", "Key #2", "Key #3",
        "Bogus #5", "Bogus #6", "Bogus #7", "Bogus #8"};
    

    did = should = PR_FALSE;
    for (keys = 0; keys < 4; ++keys)
    {
        rv = RCThread::NewPrivateIndex(&key[keys]);
        key[keys + 4] = key[keys] + 4;
        MY_ASSERT(PR_SUCCESS == rv);
    }
    PrintProgress(__LINE__);

    /* the first four should be bu null, the last four undefined and null */
    did = should = PR_FALSE;
    for (keys = 0; keys < 8; ++keys)
    {
        pd = RCThread::GetPrivateData(key[keys]);
        MY_ASSERT(NULL == pd);
    }
    PrintProgress(__LINE__);

    /* initially set private data for new keys */
    did = should = PR_FALSE;
    for (keys = 0; keys < 4; ++keys)
    {
        rv = RCThread::SetPrivateData(key[keys], &key_string[keys]);
        MY_ASSERT(PR_SUCCESS == rv);
    }
    PrintProgress(__LINE__);

    /* re-assign the private data, albeit the same content */    
    did = PR_FALSE; should = PR_TRUE;
    for (keys = 0; keys < 4; ++keys)
    {
        pd = RCThread::GetPrivateData(key[keys]);
        PR_ASSERT(NULL != pd);
        rv = RCThread::SetPrivateData(key[keys], &key_string[keys]);
        MY_ASSERT(PR_SUCCESS == rv);
    }
    PrintProgress(__LINE__);

    /* set private to <empty> */
    did = PR_FALSE; should = PR_TRUE;
    for (keys = 0; keys < 4; ++keys)
    {
        rv = RCThread::SetPrivateData(key[keys]);
        MY_ASSERT(PR_SUCCESS == rv);
    }
    PrintProgress(__LINE__);

    /* should all be null now */
    did = should = PR_FALSE;
    for (keys = 0; keys < 4; ++keys)
    {
        pd = RCThread::GetPrivateData(key[keys]);
        PR_ASSERT(NULL == pd);
    }
    PrintProgress(__LINE__);

    /* allocate another batch of keys and assign data to them */
    did = should = PR_FALSE;
    for (keys = 8; keys < 127; ++keys)
    {
        rv = RCThread::NewPrivateIndex(&key[keys]);
        MY_ASSERT(PR_SUCCESS == rv);
        rv = RCThread::SetPrivateData(key[keys], &extension);
        MY_ASSERT(PR_SUCCESS == rv);
    }
    PrintProgress(__LINE__);

    /* set all the extended slots to <empty> */
    did = PR_FALSE; should = PR_TRUE;
    for (keys = 8; keys < 127; ++keys)
    {
        rv = RCThread::SetPrivateData(key[keys]);
        MY_ASSERT(PR_SUCCESS == rv);
    }
    PrintProgress(__LINE__);

    /* set all the extended slots to <empty> again (noop) */
    did = should = PR_FALSE;
    for (keys = 8; keys < 127; ++keys)
    {
        rv = RCThread::SetPrivateData(key[keys]);
        MY_ASSERT(PR_SUCCESS == rv);
    }

    if (debug) PR_fprintf(fout, "Creating thread\n");
    thread = new MyThread();
    if (debug) PR_fprintf(fout, "Starting thread\n");
    thread->Start();
    if (debug) PR_fprintf(fout, "Joining thread\n");
    (void)thread->Join();
    if (debug) PR_fprintf(fout, "Joined thread\n");

    failed |= (PR_FAILURE == RCPrimordialThread::Cleanup());

    (void)PR_fprintf(
        fout, "%s\n",((PR_TRUE == failed) ? "FAILED" : "PASSED"));

    return (failed) ? 1 : 0;

}  /* main */

/*
** class MyPrivateData
*/
MyPrivateData::~MyPrivateData()
{
    PR_fprintf(
        fout, "MyPrivateData::~MyPrivateData[%s]\n",
        (NULL != string) ? string : "NULL");
}  /* MyPrivateData::~MyPrivateData */

MyPrivateData::MyPrivateData(): RCThreadPrivateData()
{
    PR_fprintf(fout, "MyPrivateData::MyPrivateData()\n");
    string = NULL;
}  /* MyPrivateData::MyPrivateData */

MyPrivateData::MyPrivateData(char* data): RCThreadPrivateData()
{
    PR_fprintf(fout, "MyPrivateData::MyPrivateData(char* data)\n");
    string = data;
}  /* MyPrivateData:: MyPrivateData */

MyPrivateData::MyPrivateData(const MyPrivateData& him): RCThreadPrivateData(him)
{
    PR_fprintf(fout, "MyPrivateData::MyPrivateData(const MyPrivateData& him)\n");
    string = him.string;
}  /* MyPrivateData:: MyPrivateData */

void MyPrivateData::Release()
{
    if (should) did = PR_TRUE;
    else failed = PR_TRUE;
}  /* MyPrivateData::operator= */

/*
** class MyThread
*/
MyThread::~MyThread() { }
MyThread::MyThread(): RCThread(RCThread::global, RCThread::joinable) { }


void MyThread::RootFunction()
{
    PRStatus rv;
    PRUintn keys;
    const RCThreadPrivateData *pd;
    
    MyPrivateData extension = MyPrivateData("EXTENSION");
    MyPrivateData key_string[] = {
        "Key #0", "Key #1", "Key #2", "Key #3",
        "Bogus #5", "Bogus #6", "Bogus #7", "Bogus #8"};
    
    did = should = PR_FALSE;
    for (keys = 0; keys < 8; ++keys)
    {
        pd = GetPrivateData(key[keys]);
        MY_ASSERT(NULL == pd);
    }
    PrintProgress(__LINE__);

    did = should = PR_FALSE;
    for (keys = 0; keys < 4; ++keys)
    {
        rv = SetPrivateData(keys, &key_string[keys]);
        MY_ASSERT(PR_SUCCESS == rv);
    }
    PrintProgress(__LINE__);

#if !defined(DEBUG)
    did = should = PR_FALSE;
    for (keys = 4; keys < 8; ++keys)
    {
        rv = SetPrivateData(keys, &key_string[keys]);
        MY_ASSERT(PR_FAILURE == rv);
    }
    PrintProgress(__LINE__);
#endif
    
    did = PR_FALSE; should = PR_TRUE;
    for (keys = 0; keys < 4; ++keys)
    {
        rv = SetPrivateData(key[keys], &key_string[keys]);
        MY_ASSERT(PR_SUCCESS == rv);
    }
    PrintProgress(__LINE__);

    did = PR_FALSE; should = PR_TRUE;
    for (keys = 0; keys < 4; ++keys)
    {
        rv = SetPrivateData(key[keys]);
        MY_ASSERT(PR_SUCCESS == rv);
    }
    PrintProgress(__LINE__);

    did = should = PR_FALSE;
    for (keys = 0; keys < 4; ++keys)
    {
        rv = SetPrivateData(key[keys]);
        MY_ASSERT(PR_SUCCESS == rv);
    }
    PrintProgress(__LINE__);

    did = should = PR_FALSE;
    for (keys = 8; keys < 127; ++keys)
    {
        rv = SetPrivateData(key[keys], &extension);
        MY_ASSERT(PR_SUCCESS == rv);
    }
    PrintProgress(__LINE__);

    did = PR_FALSE; should = PR_TRUE;
    for (keys = 8; keys < 127; ++keys)
    {
        rv = SetPrivateData(key[keys]);
        MY_ASSERT(PR_SUCCESS == rv);
    }
    PrintProgress(__LINE__);

    did = should = PR_FALSE;
    for (keys = 8; keys < 127; ++keys)
    {
        rv = SetPrivateData(key[keys]);
        MY_ASSERT(PR_SUCCESS == rv);
    }
}  /* MyThread::RootFunction */

/* tpd.c */