зеркало из https://github.com/mozilla/gecko-dev.git
148 строки
4.3 KiB
C
148 строки
4.3 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is the Netscape Portable Runtime (NSPR).
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998-2000 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the
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* terms of the GNU General Public License Version 2 or later (the
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* "GPL"), in which case the provisions of the GPL are applicable
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* instead of those above. If you wish to allow use of your
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* version of this file only under the terms of the GPL and not to
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* allow others to use your version of this file under the MPL,
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* indicate your decision by deleting the provisions above and
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* replace them with the notice and other provisions required by
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* the GPL. If you do not delete the provisions above, a recipient
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* may use your version of this file under either the MPL or the
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* GPL.
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*/
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#include "prinit.h"
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#include "prprf.h"
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#include "prthread.h"
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#include "prcvar.h"
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#include "prlock.h"
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#include "prlog.h"
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#include "prmem.h"
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#include "primpl.h"
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#include "plgetopt.h"
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#include <stdlib.h>
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static PRInt32 Random(void)
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{
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PRInt32 ran = rand() >> 16;
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return ran;
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} /* Random */
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static void Help(void)
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{
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PRFileDesc *err = PR_GetSpecialFD(PR_StandardError);
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PR_fprintf(err, "many_cv usage: [-c n] [-l n] [-h]\n");
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PR_fprintf(err, "\t-c n Number of conditions per lock (default: 10)\n");
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PR_fprintf(err, "\t-l n Number of times to loop the test (default: 1)\n");
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PR_fprintf(err, "\t-h This message and nothing else\n");
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} /* Help */
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static PRIntn PR_CALLBACK RealMain( PRIntn argc, char **argv )
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{
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PLOptStatus os;
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PRIntn index, nl;
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PRLock *ml = NULL;
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PRCondVar **cv = NULL;
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PRBool stats = PR_FALSE;
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PRIntn nc, loops = 1, cvs = 10;
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PRFileDesc *err = PR_GetSpecialFD(PR_StandardError);
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PLOptState *opt = PL_CreateOptState(argc, argv, "hsc:l:");
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while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
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{
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if (PL_OPT_BAD == os) continue;
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switch (opt->option)
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{
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case 's': /* number of CVs to association with lock */
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stats = PR_TRUE;
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break;
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case 'c': /* number of CVs to association with lock */
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cvs = atoi(opt->value);
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break;
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case 'l': /* number of times to run the tests */
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loops = atoi(opt->value);
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break;
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case 'h': /* user wants some guidance */
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default:
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Help(); /* so give him an earful */
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return 2; /* but not a lot else */
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}
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}
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PL_DestroyOptState(opt);
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PR_fprintf(err, "Settings\n");
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PR_fprintf(err, "\tConditions / lock: %d\n", cvs);
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PR_fprintf(err, "\tLoops to run test: %d\n", loops);
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ml = PR_NewLock();
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PR_ASSERT(NULL != ml);
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cv = (PRCondVar**)PR_CALLOC(sizeof(PRCondVar*) * cvs);
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PR_ASSERT(NULL != cv);
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for (index = 0; index < cvs; ++index)
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{
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cv[index] = PR_NewCondVar(ml);
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PR_ASSERT(NULL != cv[index]);
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}
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for (index = 0; index < loops; ++index)
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{
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PR_Lock(ml);
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for (nl = 0; nl < cvs; ++nl)
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{
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PRInt32 ran = Random() % 8;
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if (0 == ran) PR_NotifyAllCondVar(cv[nl]);
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else for (nc = 0; nc < ran; ++nc)
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PR_NotifyCondVar(cv[nl]);
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}
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PR_Unlock(ml);
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}
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for (index = 0; index < cvs; ++index)
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PR_DestroyCondVar(cv[index]);
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PR_DELETE(cv);
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PR_DestroyLock(ml);
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printf("PASS\n");
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PT_FPrintStats(err, "\nPThread Statistics\n");
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return 0;
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}
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PRIntn main(PRIntn argc, char **argv)
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{
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PRIntn rv;
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PR_STDIO_INIT();
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rv = PR_Initialize(RealMain, argc, argv, 0);
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return rv;
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} /* main */
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