/* -*- 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/. */ /* ** file: inrval.c ** description: Interval conversion test. ** Modification History: ** 15-May-97 AGarcia- Converted the test to accomodate the debug_mode flag. ** The debug mode will print all of the printfs associated with this test. ** The regress mode will be the default mode. Since the regress tool limits ** the output to a one line status:PASS or FAIL,all of the printf statements ** have been handled with an if (debug_mode) statement. ** 04-June-97 AGarcia removed the Test_Result function. Regress tool has been updated to ** recognize the return code from tha main program. **/ /*********************************************************************** ** Includes ***********************************************************************/ /* Used to get the command line option */ #include "plgetopt.h" #include "prinit.h" #include "obsolete/pralarm.h" #include "prio.h" #include "prprf.h" #include "prlock.h" #include "prlong.h" #include "prcvar.h" #include "prinrval.h" #include "prtime.h" #include "plgetopt.h" #include <stdio.h> #include <stdlib.h> static PRIntn debug_mode; static PRFileDesc *output; static void TestConversions(void) { PRIntervalTime ticks = PR_TicksPerSecond(); if (debug_mode) { PR_fprintf(output, "PR_TicksPerSecond: %ld\n\n", ticks); PR_fprintf(output, "PR_SecondsToInterval(1): %ld\n", PR_SecondsToInterval(1)); PR_fprintf(output, "PR_MillisecondsToInterval(1000): %ld\n", PR_MillisecondsToInterval(1000)); PR_fprintf(output, "PR_MicrosecondsToInterval(1000000): %ld\n\n", PR_MicrosecondsToInterval(1000000)); PR_fprintf(output, "PR_SecondsToInterval(3): %ld\n", PR_SecondsToInterval(3)); PR_fprintf(output, "PR_MillisecondsToInterval(3000): %ld\n", PR_MillisecondsToInterval(3000)); PR_fprintf(output, "PR_MicrosecondsToInterval(3000000): %ld\n\n", PR_MicrosecondsToInterval(3000000)); PR_fprintf(output, "PR_IntervalToSeconds(%ld): %ld\n", ticks, PR_IntervalToSeconds(ticks)); PR_fprintf(output, "PR_IntervalToMilliseconds(%ld): %ld\n", ticks, PR_IntervalToMilliseconds(ticks)); PR_fprintf(output, "PR_IntervalToMicroseconds(%ld): %ld\n\n", ticks, PR_IntervalToMicroseconds(ticks)); ticks *= 3; PR_fprintf(output, "PR_IntervalToSeconds(%ld): %ld\n", ticks, PR_IntervalToSeconds(ticks)); PR_fprintf(output, "PR_IntervalToMilliseconds(%ld): %ld\n", ticks, PR_IntervalToMilliseconds(ticks)); PR_fprintf(output, "PR_IntervalToMicroseconds(%ld): %ld\n\n", ticks, PR_IntervalToMicroseconds(ticks)); } /*end debug mode */ } /* TestConversions */ static void TestIntervalOverhead(void) { /* Hopefully the optimizer won't delete this function */ PRUint32 elapsed, per_call, loops = 1000000; PRIntervalTime timeout, timein = PR_IntervalNow(); while (--loops > 0) { timeout = PR_IntervalNow(); } elapsed = 1000U * PR_IntervalToMicroseconds(timeout - timein); per_call = elapsed / 1000000U; PR_fprintf( output, "Overhead of 'PR_IntervalNow()' is %u nsecs\n\n", per_call); } /* TestIntervalOverhead */ static void TestNowOverhead(void) { PRTime timeout, timein; PRInt32 overhead, loops = 1000000; PRInt64 elapsed, per_call, ten23rd, ten26th; LL_I2L(ten23rd, 1000); LL_I2L(ten26th, 1000000); timein = PR_Now(); while (--loops > 0) { timeout = PR_Now(); } LL_SUB(elapsed, timeout, timein); LL_MUL(elapsed, elapsed, ten23rd); LL_DIV(per_call, elapsed, ten26th); LL_L2I(overhead, per_call); PR_fprintf( output, "Overhead of 'PR_Now()' is %u nsecs\n\n", overhead); } /* TestNowOverhead */ static void TestIntervals(void) { PRStatus rv; PRUint32 delta; PRInt32 seconds; PRUint64 elapsed, thousand; PRTime timein, timeout; PRLock *ml = PR_NewLock(); PRCondVar *cv = PR_NewCondVar(ml); for (seconds = 0; seconds < 10; ++seconds) { PRIntervalTime ticks = PR_SecondsToInterval(seconds); PR_Lock(ml); timein = PR_Now(); rv = PR_WaitCondVar(cv, ticks); timeout = PR_Now(); PR_Unlock(ml); LL_SUB(elapsed, timeout, timein); LL_I2L(thousand, 1000); LL_DIV(elapsed, elapsed, thousand); LL_L2UI(delta, elapsed); if (debug_mode) PR_fprintf(output, "TestIntervals: %swaiting %ld seconds took %ld msecs\n", ((rv == PR_SUCCESS) ? "" : "FAILED "), seconds, delta); } PR_DestroyCondVar(cv); PR_DestroyLock(ml); if (debug_mode) { PR_fprintf(output, "\n"); } } /* TestIntervals */ static PRIntn PR_CALLBACK RealMain(int argc, char** argv) { PRUint32 vcpu, cpus = 0, loops = 1000; /* The command line argument: -d is used to determine if the test is being run in debug mode. The regress tool requires only one line output:PASS or FAIL. All of the printfs associated with this test has been handled with a if (debug_mode) test. Usage: test_name -d */ /* main test */ PLOptStatus os; PLOptState *opt = PL_CreateOptState(argc, argv, "dl:c:"); while (PL_OPT_EOL != (os = PL_GetNextOpt(opt))) { if (PL_OPT_BAD == os) { continue; } switch (opt->option) { case 'd': /* debug mode */ debug_mode = 1; break; case 'c': /* concurrency counter */ cpus = atoi(opt->value); break; case 'l': /* loop counter */ loops = atoi(opt->value); break; default: break; } } PL_DestroyOptState(opt); output = PR_GetSpecialFD(PR_StandardOutput); PR_fprintf(output, "inrval: Examine stdout to determine results.\n"); if (cpus == 0) { cpus = 8; } if (loops == 0) { loops = 1000; } if (debug_mode > 0) { PR_fprintf(output, "Inrval: Using %d loops\n", loops); PR_fprintf(output, "Inrval: Using 1 and %d cpu(s)\n", cpus); } for (vcpu = 1; vcpu <= cpus; vcpu += cpus - 1) { if (debug_mode) { PR_fprintf(output, "\nInrval: Using %d CPU(s)\n\n", vcpu); } PR_SetConcurrency(vcpu); TestNowOverhead(); TestIntervalOverhead(); TestConversions(); TestIntervals(); } return 0; } int main(int argc, char **argv) { PRIntn rv; PR_STDIO_INIT(); rv = PR_Initialize(RealMain, argc, argv, 0); return rv; } /* main */