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 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 #include "plerror.h"

 #include "plgetopt.h"

 #include "prinit.h"

 #include "prprf.h"

 #include "prio.h"

 #include "prcvar.h"

 #include "prmon.h"

 #include "prcmon.h"

 #include "prlock.h"

 #include "prerror.h"

 #include "prinit.h"

 #include "prinrval.h"

 #include "prthread.h"

 static PRLock *ml = NULL;

 static PRIntervalTime base;

 static PRFileDesc *err = NULL;

 typedef struct CMonShared

 {

     PRInt32 o1, o2;

 } CMonShared;

 typedef struct MonShared

 {

     PRMonitor *o1, *o2;

 } MonShared;

 typedef struct LockShared

 {

     PRLock *o1, *o2;

     PRCondVar *cv1, *cv2;

 } LockShared;

 static void LogNow(const char *msg, PRStatus rv)

 {

     PRIntervalTime now = PR_IntervalNow();

     PR_Lock(ml);

     PR_fprintf(err, "%6ld: %s", (now - base), msg);

     if (PR_FAILURE == rv) PL_FPrintError(err, " ");

     else PR_fprintf(err, "\n");

     PR_Unlock(ml);

 }  /* LogNow */

 static void Help(void)

 {

     PR_fprintf(err, "Usage: [-[d][l][m][c]] [-h]\n");

     PR_fprintf(err, "\t-d   debug mode                  (default: FALSE)\n");

     PR_fprintf(err, "\t-l   test with locks             (default: FALSE)\n");

     PR_fprintf(err, "\t-m   tests with monitors         (default: FALSE)\n");

     PR_fprintf(err, "\t-c   tests with cmonitors        (default: FALSE)\n");

     PR_fprintf(err, "\t-h   help\n");

 }  /* Help */

 static void PR_CALLBACK T2CMon(void *arg)

 {

     PRStatus rv;

     CMonShared *shared = (CMonShared*)arg;

     PR_CEnterMonitor(&shared->o1);

     LogNow("T2 waiting 5 seconds on o1", PR_SUCCESS);

     rv = PR_CWait(&shared->o1, PR_SecondsToInterval(5));

     if (PR_SUCCESS == rv) LogNow("T2 resuming on o1", rv);

     else LogNow("T2 wait failed on o1", rv);

     rv = PR_CNotify(&shared->o1);

     if (PR_SUCCESS == rv) LogNow("T2 notified o1", rv);

     else LogNow("T2 notify on o1 failed", rv);

     PR_CExitMonitor(&shared->o1);

 }  /* T2CMon */

 static void PR_CALLBACK T3CMon(void *arg)

 {

     PRStatus rv;

     CMonShared *shared = (CMonShared*)arg;

     PR_CEnterMonitor(&shared->o2);

     LogNow("T3 waiting 5 seconds on o2", PR_SUCCESS);

     rv = PR_CWait(&shared->o2, PR_SecondsToInterval(5));

     if (PR_SUCCESS == rv) LogNow("T3 resuming on o2", rv);

     else LogNow("T3 wait failed on o2", rv);

     rv = PR_CNotify(&shared->o2);

     LogNow("T3 notify on o2", rv);

     PR_CExitMonitor(&shared->o2);

 }  /* T3CMon */

 static CMonShared sharedCM;

 static void T1CMon(void)

 {

     PRStatus rv;

     PRThread *t2, *t3;

     PR_fprintf(err, "\n**********************************\n");

     PR_fprintf(err, "         CACHED MONITORS\n");

     PR_fprintf(err, "**********************************\n");

     base =  PR_IntervalNow();

     PR_CEnterMonitor(&sharedCM.o1);

     LogNow("T1 waiting 3 seconds on o1", PR_SUCCESS);

     rv = PR_CWait(&sharedCM.o1, PR_SecondsToInterval(3));

     if (PR_SUCCESS == rv) LogNow("T1 resuming on o1", rv);

     else LogNow("T1 wait on o1 failed", rv);

     PR_CExitMonitor(&sharedCM.o1);

     LogNow("T1 creating T2", PR_SUCCESS);

     t2 = PR_CreateThread(

         PR_USER_THREAD, T2CMon, &sharedCM, PR_PRIORITY_NORMAL,

         PR_LOCAL_THREAD, PR_JOINABLE_THREAD, 0);

     LogNow("T1 creating T3", PR_SUCCESS);

     t3 = PR_CreateThread(

         PR_USER_THREAD, T3CMon, &sharedCM, PR_PRIORITY_NORMAL,

         PR_LOCAL_THREAD, PR_JOINABLE_THREAD, 0);

     PR_CEnterMonitor(&sharedCM.o2);

     LogNow("T1 waiting forever on o2", PR_SUCCESS);

     rv = PR_CWait(&sharedCM.o2, PR_INTERVAL_NO_TIMEOUT);

     if (PR_SUCCESS == rv) LogNow("T1 resuming on o2", rv);

     else LogNow("T1 wait on o2 failed", rv);

     PR_CExitMonitor(&sharedCM.o2);

     (void)PR_JoinThread(t2);

     (void)PR_JoinThread(t3);

 }  /* T1CMon */

 static void PR_CALLBACK T2Mon(void *arg)

 {

     PRStatus rv;

     MonShared *shared = (MonShared*)arg;

     PR_EnterMonitor(shared->o1);

     LogNow("T2 waiting 5 seconds on o1", PR_SUCCESS);

     rv = PR_Wait(shared->o1, PR_SecondsToInterval(5));

     if (PR_SUCCESS == rv) LogNow("T2 resuming on o1", rv);

     else LogNow("T2 wait failed on o1", rv);

     rv = PR_Notify(shared->o1);

     if (PR_SUCCESS == rv) LogNow("T2 notified o1", rv);

     else LogNow("T2 notify on o1 failed", rv);

     PR_ExitMonitor(shared->o1);

 }  /* T2Mon */

 static void PR_CALLBACK T3Mon(void *arg)

 {

     PRStatus rv;

     MonShared *shared = (MonShared*)arg;

     PR_EnterMonitor(shared->o2);

     LogNow("T3 waiting 5 seconds on o2", PR_SUCCESS);

     rv = PR_Wait(shared->o2, PR_SecondsToInterval(5));

     if (PR_SUCCESS == rv) LogNow("T3 resuming on o2", rv);

     else LogNow("T3 wait failed on o2", rv);

     rv = PR_Notify(shared->o2);

     LogNow("T3 notify on o2", rv);

     PR_ExitMonitor(shared->o2);

 }  /* T3Mon */

 static MonShared sharedM;

 static void T1Mon(void)

 {

     PRStatus rv;

     PRThread *t2, *t3;

     PR_fprintf(err, "\n**********************************\n");

     PR_fprintf(err, "            MONITORS\n");

     PR_fprintf(err, "**********************************\n");

     sharedM.o1 = PR_NewMonitor();

     sharedM.o2 = PR_NewMonitor();

     base =  PR_IntervalNow();

     PR_EnterMonitor(sharedM.o1);

     LogNow("T1 waiting 3 seconds on o1", PR_SUCCESS);

     rv = PR_Wait(sharedM.o1, PR_SecondsToInterval(3));

     if (PR_SUCCESS == rv) LogNow("T1 resuming on o1", rv);

     else LogNow("T1 wait on o1 failed", rv);

     PR_ExitMonitor(sharedM.o1);

     LogNow("T1 creating T2", PR_SUCCESS);

     t2 = PR_CreateThread(

         PR_USER_THREAD, T2Mon, &sharedM, PR_PRIORITY_NORMAL,

         PR_LOCAL_THREAD, PR_JOINABLE_THREAD, 0);

     LogNow("T1 creating T3", PR_SUCCESS);

     t3 = PR_CreateThread(

         PR_USER_THREAD, T3Mon, &sharedM, PR_PRIORITY_NORMAL,

         PR_LOCAL_THREAD, PR_JOINABLE_THREAD, 0);

     PR_EnterMonitor(sharedM.o2);

     LogNow("T1 waiting forever on o2", PR_SUCCESS);

     rv = PR_Wait(sharedM.o2, PR_INTERVAL_NO_TIMEOUT);

     if (PR_SUCCESS == rv) LogNow("T1 resuming on o2", rv);

     else LogNow("T1 wait on o2 failed", rv);

     PR_ExitMonitor(sharedM.o2);

     (void)PR_JoinThread(t2);

     (void)PR_JoinThread(t3);

     PR_DestroyMonitor(sharedM.o1);

     PR_DestroyMonitor(sharedM.o2);

 }  /* T1Mon */

 static void PR_CALLBACK T2Lock(void *arg)

 {

     PRStatus rv;

     LockShared *shared = (LockShared*)arg;

     PR_Lock(shared->o1);

     LogNow("T2 waiting 5 seconds on o1", PR_SUCCESS);

     rv = PR_WaitCondVar(shared->cv1, PR_SecondsToInterval(5));

     if (PR_SUCCESS == rv) LogNow("T2 resuming on o1", rv);

     else LogNow("T2 wait failed on o1", rv);

     rv = PR_NotifyCondVar(shared->cv1);

     if (PR_SUCCESS == rv) LogNow("T2 notified o1", rv);

     else LogNow("T2 notify on o1 failed", rv);

     PR_Unlock(shared->o1);

 }  /* T2Lock */

 static void PR_CALLBACK T3Lock(void *arg)

 {

     PRStatus rv;

     LockShared *shared = (LockShared*)arg;

     PR_Lock(shared->o2);

     LogNow("T3 waiting 5 seconds on o2", PR_SUCCESS);

     rv = PR_WaitCondVar(shared->cv2, PR_SecondsToInterval(5));

     if (PR_SUCCESS == rv) LogNow("T3 resuming on o2", rv);

     else LogNow("T3 wait failed on o2", rv);

     rv = PR_NotifyCondVar(shared->cv2);

     LogNow("T3 notify on o2", rv);

     PR_Unlock(shared->o2);

 }  /* T3Lock */

 /*

 ** Make shared' a static variable for Win16

 */

 static LockShared sharedL;

 static void T1Lock(void)

 {

     PRStatus rv;

     PRThread *t2, *t3;

     sharedL.o1 = PR_NewLock();

     sharedL.o2 = PR_NewLock();

     sharedL.cv1 = PR_NewCondVar(sharedL.o1);

     sharedL.cv2 = PR_NewCondVar(sharedL.o2);

     PR_fprintf(err, "\n**********************************\n");

     PR_fprintf(err, "             LOCKS\n");

     PR_fprintf(err, "**********************************\n");

     base =  PR_IntervalNow();

     PR_Lock(sharedL.o1);

     LogNow("T1 waiting 3 seconds on o1", PR_SUCCESS);

     rv = PR_WaitCondVar(sharedL.cv1, PR_SecondsToInterval(3));

     if (PR_SUCCESS == rv) LogNow("T1 resuming on o1", rv);

     else LogNow("T1 wait on o1 failed", rv);

     PR_Unlock(sharedL.o1);

     LogNow("T1 creating T2", PR_SUCCESS);

     t2 = PR_CreateThread(

         PR_USER_THREAD, T2Lock, &sharedL, PR_PRIORITY_NORMAL,

         PR_LOCAL_THREAD, PR_JOINABLE_THREAD, 0);

     LogNow("T1 creating T3", PR_SUCCESS);

     t3 = PR_CreateThread(

         PR_USER_THREAD, T3Lock, &sharedL, PR_PRIORITY_NORMAL,

         PR_LOCAL_THREAD, PR_JOINABLE_THREAD, 0);

     PR_Lock(sharedL.o2);

     LogNow("T1 waiting forever on o2", PR_SUCCESS);

     rv = PR_WaitCondVar(sharedL.cv2, PR_INTERVAL_NO_TIMEOUT);

     if (PR_SUCCESS == rv) LogNow("T1 resuming on o2", rv);

     else LogNow("T1 wait on o2 failed", rv);

     PR_Unlock(sharedL.o2);

     (void)PR_JoinThread(t2);

     (void)PR_JoinThread(t3);

     PR_DestroyLock(sharedL.o1);

     PR_DestroyLock(sharedL.o2);

     PR_DestroyCondVar(sharedL.cv1);

     PR_DestroyCondVar(sharedL.cv2);

 }  /* T1Lock */

 static PRIntn PR_CALLBACK RealMain( PRIntn argc, char **argv )

 {

 	PLOptStatus os;

   	PLOptState *opt = PL_CreateOptState(argc, argv, "dhlmc");

 	PRBool locks = PR_FALSE, monitors = PR_FALSE, cmonitors = PR_FALSE;

     err = PR_GetSpecialFD(PR_StandardError);

 	while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))

     {

 		if (PL_OPT_BAD == os) continue;

         switch (opt->option)

         {

         case 'd':  /* debug mode (noop) */

             break;

         case 'l':  /* locks */

 			locks = PR_TRUE;

             break;

         case 'm':  /* monitors */

 			monitors = PR_TRUE;

             break;

         case 'c':  /* cached monitors */

 			cmonitors = PR_TRUE;

             break;

         case 'h':  /* needs guidance */

          default:

             Help();

             return 2;

         }

     }

 	PL_DestroyOptState(opt);

     ml = PR_NewLock();

     if (locks) T1Lock();

     if (monitors) T1Mon();

     if (cmonitors) T1CMon();

     PR_DestroyLock(ml);

     PR_fprintf(err, "Done!\n");    

     return 0;

 }  /* main */

 int main(int argc, char **argv)

 {

     PRIntn rv;

     PR_STDIO_INIT();

     rv = PR_Initialize(RealMain, argc, argv, 0);

     return rv;

 }  /* main */

 /* xnotify.c */