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- /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
- /*
- * The contents of this file are subject to the Netscape Public License
- * Version 1.0 (the "NPL"); you may not use this file except in
- * compliance with the NPL. You may obtain a copy of the NPL at
- * http://www.mozilla.org/NPL/
- *
- * Software distributed under the NPL is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
- * for the specific language governing rights and limitations under the
- * NPL.
- *
- * The Initial Developer of this code under the NPL is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1998 Netscape Communications Corporation. All Rights
- * Reserved.
- */
-
- /*
- ** File: lock.c
- ** Purpose: test basic locking functions
- **
- ** Modification History:
- ** 14-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.
- **
- ** 11-Aug-97 LarryH. Win16 port of NSPR.
- ** - Added "PASS", "FAIL" messages on completion.
- ** - Change stack variables to static scope variables
- ** because of shadow-stack use by Win16
- ** - Added PR_CALLBACK attribute to functions called by NSPR
- ** - Added command line arguments:
- ** - l <num> to control the number of loops
- ** - c <num> to control the number of CPUs.
- ** (was positional argv).
- **
- **
- ***********************************************************************/
-
- /***********************************************************************
- ** Includes
- ***********************************************************************/
- /* Used to get the command line option */
- #include "plgetopt.h"
-
- #include "prcmon.h"
- #include "prinit.h"
- #include "prinrval.h"
- #include "prlock.h"
- #include "prlog.h"
- #include "prmon.h"
- #include "prmem.h"
- #include "prthread.h"
- #include "prtypes.h"
-
- #include "plstr.h"
-
- #include <stdio.h>
- #include <stdlib.h>
-
- #if defined(XP_UNIX)
- #include <string.h>
- #endif
-
- #ifdef XP_MAC
- #include "prlog.h"
- #define printf PR_LogPrint
- extern void SetupMacPrintfLog(char *logFile);
- #endif
- PRIntn failed_already=0;
- PRIntn debug_mode;
-
- const static PRIntervalTime contention_interval = 50;
-
- typedef struct LockContentious_s {
- PRLock *ml;
- PRUint32 loops;
- PRIntervalTime overhead;
- PRIntervalTime interval;
- } LockContentious_t;
-
- typedef struct MonitorContentious_s {
- PRMonitor *ml;
- PRUint32 loops;
- PRIntervalTime overhead;
- PRIntervalTime interval;
- } MonitorContentious_t;
-
-
- static PRIntervalTime Sleeper(PRUint32 loops)
- {
- PRIntervalTime predicted = 0;
- while (loops-- > 0)
- {
- predicted += contention_interval;
- (void)PR_Sleep(contention_interval);
- }
- return predicted;
- } /* Sleeper */
-
- /*
- ** BASIC LOCKS
- */
- static PRIntervalTime MakeLock(PRUint32 loops)
- {
- PRLock *ml = NULL;
- while (loops-- > 0)
- {
- ml = PR_NewLock();
- PR_DestroyLock(ml);
- ml = NULL;
- }
- return 0;
- } /* MakeLock */
-
- static PRIntervalTime NonContentiousLock(PRUint32 loops)
- {
- PRLock *ml = NULL;
- ml = PR_NewLock();
- while (loops-- > 0)
- {
- PR_Lock(ml);
- PR_Unlock(ml);
- }
- PR_DestroyLock(ml);
- return 0;
- } /* NonContentiousLock */
-
- static void PR_CALLBACK LockContender(void *arg)
- {
- LockContentious_t *contention = (LockContentious_t*)arg;
- while (contention->loops-- > 0)
- {
- PR_Lock(contention->ml);
- contention->overhead += contention->interval;
- PR_Sleep(contention->interval);
- PR_Unlock(contention->ml);
- }
- } /* LockContender */
-
- static PRIntervalTime ContentiousLock(PRUint32 loops)
- {
- PRStatus status;
- PRThread *thread = NULL;
- LockContentious_t * contention;
- PRIntervalTime rv, overhead, timein = PR_IntervalNow();
-
- contention = (LockContentious_t *) PR_Calloc( 1, sizeof(LockContentious_t));
- contention->loops = loops;
- contention->overhead = 0;
- contention->ml = PR_NewLock();
- contention->interval = contention_interval;
- thread = PR_CreateThread(
- PR_USER_THREAD, LockContender, contention,
- PR_PRIORITY_LOW, PR_LOCAL_THREAD, PR_JOINABLE_THREAD, 0);
- PR_ASSERT(thread != NULL);
-
- overhead = PR_IntervalNow() - timein;
-
- while (contention->loops > 0)
- {
- PR_Lock(contention->ml);
- contention->overhead += contention->interval;
- PR_Sleep(contention->interval);
- PR_Unlock(contention->ml);
- }
-
- timein = PR_IntervalNow();
- status = PR_JoinThread(thread);
- PR_DestroyLock(contention->ml);
- overhead += (PR_IntervalNow() - timein);
- rv = overhead + contention->overhead;
- PR_Free(contention);
- return rv;
- } /* ContentiousLock */
-
- /*
- ** MONITORS
- */
- static PRIntervalTime MakeMonitor(PRUint32 loops)
- {
- PRMonitor *ml = NULL;
- while (loops-- > 0)
- {
- ml = PR_NewMonitor();
- PR_DestroyMonitor(ml);
- ml = NULL;
- }
- return 0;
- } /* MakeMonitor */
-
- static PRIntervalTime NonContentiousMonitor(PRUint32 loops)
- {
- PRMonitor *ml = NULL;
- ml = PR_NewMonitor();
- while (loops-- > 0)
- {
- PR_EnterMonitor(ml);
- PR_ExitMonitor(ml);
- }
- PR_DestroyMonitor(ml);
- return 0;
- } /* NonContentiousMonitor */
-
- static void PR_CALLBACK TryEntry(void *arg)
- {
- PRMonitor *ml = (PRMonitor*)arg;
- if (debug_mode) printf("Reentrant thread created\n");
- PR_EnterMonitor(ml);
- if (debug_mode) printf("Reentrant thread acquired monitor\n");
- PR_ExitMonitor(ml);
- if (debug_mode) printf("Reentrant thread released monitor\n");
- } /* TryEntry */
-
- static PRIntervalTime ReentrantMonitor(PRUint32 loops)
- {
- PRStatus status;
- PRThread *thread;
- PRMonitor *ml = PR_NewMonitor();
- if (debug_mode) printf("\nMonitor created for reentrant test\n");
-
- PR_EnterMonitor(ml);
- PR_EnterMonitor(ml);
- if (debug_mode) printf("Monitor acquired twice\n");
-
- thread = PR_CreateThread(
- PR_USER_THREAD, TryEntry, ml,
- PR_PRIORITY_LOW, PR_LOCAL_THREAD, PR_JOINABLE_THREAD, 0);
- PR_ASSERT(thread != NULL);
- PR_Sleep(PR_SecondsToInterval(1));
-
- PR_ExitMonitor(ml);
- if (debug_mode) printf("Monitor released first time\n");
-
- PR_ExitMonitor(ml);
- if (debug_mode) printf("Monitor released second time\n");
-
- status = PR_JoinThread(thread);
- if (debug_mode) printf(
- "Reentrant thread joined %s\n",
- (status == PR_SUCCESS) ? "successfully" : "in error");
-
- PR_DestroyMonitor(ml);
- return 0;
- } /* ReentrantMonitor */
-
- static void PR_CALLBACK MonitorContender(void *arg)
- {
- MonitorContentious_t *contention = (MonitorContentious_t*)arg;
- while (contention->loops-- > 0)
- {
- PR_EnterMonitor(contention->ml);
- contention->overhead += contention->interval;
- PR_Sleep(contention->interval);
- PR_ExitMonitor(contention->ml);
- }
- } /* MonitorContender */
-
- static PRUint32 ContentiousMonitor(PRUint32 loops)
- {
- PRStatus status;
- PRThread *thread = NULL;
- MonitorContentious_t * contention;
- PRIntervalTime rv, overhead, timein = PR_IntervalNow();
-
- contention = (MonitorContentious_t *) PR_Calloc(1, sizeof(MonitorContentious_t));
- contention->loops = loops;
- contention->overhead = 0;
- contention->ml = PR_NewMonitor();
- contention->interval = contention_interval;
- thread = PR_CreateThread(
- PR_USER_THREAD, MonitorContender, contention,
- PR_PRIORITY_LOW, PR_LOCAL_THREAD, PR_JOINABLE_THREAD, 0);
- PR_ASSERT(thread != NULL);
-
- overhead = PR_IntervalNow() - timein;
-
- while (contention->loops > 0)
- {
- PR_EnterMonitor(contention->ml);
- contention->overhead += contention->interval;
- PR_Sleep(contention->interval);
- PR_ExitMonitor(contention->ml);
- }
-
- timein = PR_IntervalNow();
- status = PR_JoinThread(thread);
- PR_DestroyMonitor(contention->ml);
- overhead += (PR_IntervalNow() - timein);
- rv = overhead + contention->overhead;
- PR_Free(contention);
- return rv;
- } /* ContentiousMonitor */
-
- /*
- ** CACHED MONITORS
- */
- static PRIntervalTime NonContentiousCMonitor(PRUint32 loops)
- {
- MonitorContentious_t contention;
- while (loops-- > 0)
- {
- PR_CEnterMonitor(&contention);
- PR_CExitMonitor(&contention);
- }
- return 0;
- } /* NonContentiousCMonitor */
-
- static void PR_CALLBACK Contender(void *arg)
- {
- MonitorContentious_t *contention = (MonitorContentious_t*)arg;
- while (contention->loops-- > 0)
- {
- PR_CEnterMonitor(contention);
- contention->overhead += contention->interval;
- PR_Sleep(contention->interval);
- PR_CExitMonitor(contention);
- }
- } /* Contender */
-
- static PRIntervalTime ContentiousCMonitor(PRUint32 loops)
- {
- PRStatus status;
- PRThread *thread = NULL;
- MonitorContentious_t * contention;
- PRIntervalTime overhead, timein = PR_IntervalNow();
-
- contention = (MonitorContentious_t *) PR_Calloc(1, sizeof(MonitorContentious_t));
- contention->ml = NULL;
- contention->overhead = 0;
- contention->loops = loops;
- contention->interval = contention_interval;
- thread = PR_CreateThread(
- PR_USER_THREAD, Contender, contention,
- PR_PRIORITY_LOW, PR_LOCAL_THREAD, PR_JOINABLE_THREAD, 0);
- PR_ASSERT(thread != NULL);
-
- overhead = PR_IntervalNow() - timein;
-
- while (contention->loops > 0)
- {
- PR_CEnterMonitor(contention);
- contention->overhead += contention->interval;
- PR_Sleep(contention->interval);
- PR_CExitMonitor(contention);
- }
-
- timein = PR_IntervalNow();
- status = PR_JoinThread(thread);
- overhead += (PR_IntervalNow() - timein);
- return overhead + contention->overhead;
- } /* ContentiousCMonitor */
-
- static PRIntervalTime Test(
- const char* msg, PRUint32 (*test)(PRUint32 loops),
- PRUint32 loops, PRIntervalTime overhead)
- {
- /*
- * overhead - overhead not measured by the test.
- * duration - wall clock time it took to perform test.
- * predicted - extra time test says should not be counted
- *
- * Time accountable to the test is duration - overhead - predicted
- * All times are Intervals and accumulated for all iterations.
- */
- PRFloat64 elapsed;
- PRIntervalTime accountable, duration;
- PRUintn spaces = PL_strlen(msg);
- PRIntervalTime timeout, timein = PR_IntervalNow();
- PRIntervalTime predicted = test(loops);
- timeout = PR_IntervalNow();
- duration = timeout - timein;
-
- if (debug_mode)
- {
- accountable = duration - predicted;
- accountable -= overhead;
- elapsed = (PRFloat64)PR_IntervalToMicroseconds(accountable);
- printf("%s:", msg);
- while (spaces++ < 50) printf(" ");
- if ((PRInt32)accountable < 0)
- printf("*****.** usecs/iteration\n");
- else
- printf("%8.2f usecs/iteration\n", elapsed/loops);
- }
- return duration;
- } /* Test */
-
- int main(int argc, char **argv)
- {
- PRBool rv = PR_TRUE;
- PRIntervalTime duration;
- PRUint32 cpu, cpus = 2, loops = 100;
-
-
- PR_STDIO_INIT();
- PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
- {
- /* 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.
- Command line argument -l <num> sets the number of loops.
- Command line argument -c <num> sets the number of cpus.
- Usage: lock [-d] [-l <num>] [-c <num>]
- */
- 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 'l': /* number of loops */
- loops = atoi(opt->value);
- break;
- case 'c': /* number of cpus */
- cpus = atoi(opt->value);
- break;
- default:
- break;
- }
- }
- PL_DestroyOptState(opt);
- }
-
- /* main test */
- PR_SetConcurrency(8);
-
- #ifdef XP_MAC
- SetupMacPrintfLog("lock.log");
- debug_mode = 1;
- #endif
-
- if (loops == 0) loops = 100;
- if (debug_mode) printf("Lock: Using %d loops\n", loops);
-
- if (cpus == 0) cpus = 2;
- if (debug_mode) printf("Lock: Using %d cpu(s)\n", cpus);
-
- (void)Sleeper(10); /* try filling in the caches */
-
- for (cpu = 1; cpu <= cpus; ++cpu)
- {
- if (debug_mode) printf("\nLock: Using %d CPU(s)\n", cpu);
- PR_SetConcurrency(cpu);
-
- duration = Test("Overhead of PR_Sleep", Sleeper, loops, 0);
- duration = 0;
-
- (void)Test("Lock creation/deletion", MakeLock, loops, 0);
- (void)Test("Lock non-contentious locking/unlocking", NonContentiousLock, loops, 0);
- (void)Test("Lock contentious locking/unlocking", ContentiousLock, loops, duration);
- (void)Test("Monitor creation/deletion", MakeMonitor, loops, 0);
- (void)Test("Monitor non-contentious locking/unlocking", NonContentiousMonitor, loops, 0);
- (void)Test("Monitor contentious locking/unlocking", ContentiousMonitor, loops, duration);
-
- (void)Test("Cached monitor non-contentious locking/unlocking", NonContentiousCMonitor, loops, 0);
- (void)Test("Cached monitor contentious locking/unlocking", ContentiousCMonitor, loops, duration);
-
- (void)ReentrantMonitor(loops);
- }
-
- if (debug_mode) printf("%s: test %s\n", "Lock(mutex) test", ((rv) ? "passed" : "failed"));
- else {
- if (!rv)
- failed_already=1;
- }
-
- if(failed_already)
- {
- printf("FAIL\n");
- return 1;
- }
- else
- {
- printf("PASS\n");
- return 0;
- }
-
- } /* main */
-
- /* testlock.c */
-