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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: priotest.c
- * Purpose: testing priorities
- */
-
- #include "prcmon.h"
- #include "prinit.h"
- #include "prinrval.h"
- #include "prlock.h"
- #include "prlog.h"
- #include "prmon.h"
- #include "prprf.h"
- #include "prthread.h"
- #include "prtypes.h"
-
- #include "plerror.h"
- #include "plgetopt.h"
-
- #include <stdio.h>
- #include <stdlib.h>
-
- #ifdef XP_MAC
- #include "prlog.h"
- unsigned int PR_fprintf(PRFileDesc *fd, const char *fmt, ...)
- {
- PR_LogPrint(fmt);
- return 0;
- }
- #define printf PR_LogPrint
- extern void SetupMacPrintfLog(char *logFile);
- #endif
-
- #define DEFAULT_DURATION 20
-
- static PRBool failed = PR_FALSE;
- static PRIntervalTime oneSecond;
- static PRFileDesc *debug_out = NULL;
-
- static PRUint32 PerSecond(PRIntervalTime timein)
- {
- PRUint32 loop = 0;
- while (((PRIntervalTime)(PR_IntervalNow()) - timein) < oneSecond)
- loop += 1;
- return loop;
- } /* PerSecond */
-
- static void PR_CALLBACK Low(void *arg)
- {
- PRUint32 t3 = 0, t2 = 0, t1 = 0, t0, *tn = (PRUint32*)arg;
- while (1)
- {
- t0 = PerSecond(PR_IntervalNow());
- *tn = (t3 + 3 * t2 + 3 * t1 + t0) / 8;
- t3 = t2; t2 = t1; t1 = t0;
- }
- } /* Low */
-
- static void PR_CALLBACK High(void *arg)
- {
- PRUint32 t3 = 0, t2 = 0, t1 = 0, t0, *tn = (PRUint32*)arg;
- while (1)
- {
- PRIntervalTime timein = PR_IntervalNow();
- PR_Sleep(oneSecond >> 2); /* 0.25 seconds */
- t0 = PerSecond(timein);
- *tn = (t3 + 3 * t2 + 3 * t1 + t0) / 8;
- t3 = t2; t2 = t1; t1 = t0;
- }
- } /* High */
-
- static void Help(void)
- {
- PR_fprintf(
- debug_out, "Usage: priotest [-d] [-c n]\n");
- PR_fprintf(
- debug_out, "-c n\tduration of test in seconds (default: %d)\n", DEFAULT_DURATION);
- PR_fprintf(
- debug_out, "-d\tturn on debugging output (default: FALSE)\n");
- } /* Help */
-
- PRIntn main(PRIntn argc, char **argv)
- {
- PLOptStatus os;
- PRThread *low, *high;
- PRThreadPriority priority;
- PRBool debug_mode = PR_FALSE;
- PRIntn duration = DEFAULT_DURATION;
- PRUint32 totalCount, highCount = 0, lowCount = 0;
- PLOptState *opt = PL_CreateOptState(argc, argv, "hdc:");
-
-
- #ifdef XP_MAC
- SetupMacPrintfLog("priotest.log");
- debug_mode = PR_TRUE;
- #endif
-
- debug_out = PR_STDOUT;
- oneSecond = PR_SecondsToInterval(1);
-
- while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
- {
- if (PL_OPT_BAD == os) continue;
- switch (opt->option)
- {
- case 'd': /* debug mode */
- debug_mode = PR_TRUE;
- break;
- case 'c': /* test duration */
- duration = atoi(opt->value);
- break;
- case 'h': /* help message */
- default:
- Help();
- return 2;
- }
- }
- PL_DestroyOptState(opt);
- PR_STDIO_INIT();
-
- if (duration == 0) duration = DEFAULT_DURATION;
-
- printf("Priority test: running for %d seconds\n\n", duration);
-
- (void)PerSecond(PR_IntervalNow());
- totalCount = PerSecond(PR_IntervalNow());
-
- /*
- ** Try some rudimentary tests like setting valid priority and
- ** getting it back, or setting invalid priorities and getting
- ** back a valid answer.
- */
- PR_SetThreadPriority(PR_GetCurrentThread(), PR_PRIORITY_URGENT);
- priority = PR_GetThreadPriority(PR_GetCurrentThread());
- failed = ((PR_TRUE == failed) || (PR_PRIORITY_URGENT != priority))
- ? PR_TRUE : PR_FALSE;
- if (debug_mode && (PR_PRIORITY_URGENT != priority))
- {
- PR_fprintf(debug_out, "PR_[S/G]etThreadPriority() failed\n");
- }
-
- /*
- The following test is bogus. PRThreadPriority is enum and (PR_PRIORITY_FIRST - 1)
- evaluates to 255 (at least on Mac). This causes the pinning test in PR_SetThreadPriority
- to fail. That test in PR_SetThreadPriority should be looked at.
- */
- #if 0
- PR_SetThreadPriority(
- PR_GetCurrentThread(), (PRThreadPriority)(PR_PRIORITY_FIRST - 1));
- priority = PR_GetThreadPriority(PR_GetCurrentThread());
- failed = ((PR_TRUE == failed) || (PR_PRIORITY_FIRST != priority))
- ? PR_TRUE : PR_FALSE;
- if (debug_mode && (PR_PRIORITY_FIRST != priority))
- {
- PR_fprintf(debug_out, "PR_SetThreadPriority(-1) failed\n");
- }
- #endif
-
- PR_SetThreadPriority(
- PR_GetCurrentThread(), (PRThreadPriority)(PR_PRIORITY_LAST + 1));
- priority = PR_GetThreadPriority(PR_GetCurrentThread());
- failed = ((PR_TRUE == failed) || (PR_PRIORITY_LAST != priority))
- ? PR_TRUE : PR_FALSE;
- if (debug_mode && (PR_PRIORITY_LAST != priority))
- {
- PR_fprintf(debug_out, "PR_SetThreadPriority(+1) failed\n");
- }
-
-
- PR_SetThreadPriority(PR_GetCurrentThread(), PR_PRIORITY_URGENT);
-
- if (debug_mode)
- {
- PR_fprintf(debug_out,
- "The high priority thread should get approximately three\n");
- PR_fprintf( debug_out,
- "times what the low priority thread manages. A maximum of \n");
- PR_fprintf( debug_out, "%d cycles are available.\n\n", totalCount);
- }
-
- #ifdef XP_MAC
- if (debug_mode)
- {
- PR_fprintf(debug_out,
- "On Mac, this test should hang indefinitely \n");
- PR_fprintf( debug_out,
- "because low priority task never gives up time \n");
- PR_fprintf( debug_out, "and the program will hang there.\n");
- }
-
- #endif
-
- low = PR_CreateThread(
- PR_USER_THREAD, Low, &lowCount, PR_PRIORITY_LOW,
- PR_LOCAL_THREAD, PR_JOINABLE_THREAD, 0);
-
- high = PR_CreateThread(
- PR_USER_THREAD, High, &highCount, PR_PRIORITY_HIGH,
- PR_LOCAL_THREAD, PR_JOINABLE_THREAD, 0);
-
- duration = (duration + 4) / 5;
- while (duration--)
- {
- PRIntn loop = 5;
- while (loop--) PR_Sleep(oneSecond);
- if (debug_mode)
- PR_fprintf(debug_out, "high : low :: %d : %d\n", highCount, lowCount);
- }
-
- PR_ProcessExit((failed) ? 1 : 0);
-
- PR_ASSERT(!"Can't get here");
- return 1; /* or here */
-
- } /* main */
-
- /* priotest.c */
-