From: george anzinger <george@mvista.com>
To: "george@mvista.com" <george@mvista.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: [PATCH 5/6] High-res-timers part 5 (support-tests) take 2
Date: Sat, 28 Sep 2002 10:38:11 -0700 [thread overview]
Message-ID: <3D95E903.8C07FAA9@mvista.com> (raw)
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The test code.
--
George Anzinger george@mvista.com
[-- Attachment #2: hrtimers-tests-2.5.34-1.0.patch --]
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diff -urP -I \$Id:.*Exp \$ -X /usr/src/patch.exclude linux-2.5.36-kb/Documentation/high-res-timers/tests/2timer_test.c linux/Documentation/high-res-timers/tests/2timer_test.c
--- linux-2.5.36-kb/Documentation/high-res-timers/tests/2timer_test.c Wed Dec 31 16:00:00 1969
+++ linux/Documentation/high-res-timers/tests/2timer_test.c Fri Sep 27 10:58:03 2002
@@ -0,0 +1,259 @@
+/*
+ * Copyright (C) 1997 by the University of Kansas Center for Research,
+ * Inc. This software was developed by the Information and
+ * Telecommunication Technology Center (ITTC) at the University of
+ * Kansas. Partial funding for this project was provided by Sprint. This
+ * software may be used and distributed according to the terms of the GNU
+ * Public License, incorporated herein by reference. Neither ITTC nor
+ * Sprint accept any liability whatsoever for this product.
+ *
+ * This project was developed under the direction of Dr. Douglas Niehaus.
+ *
+ * Authors: Shyam Pather, Balaji Srinivasan
+ *
+ * Please send bug-reports/suggestions/comments to posix@ittc.ukans.edu
+ *
+ * Further details about this project can be obtained at
+ * http://hegel.ittc.ukans.edu/projects/posix/
+ */
+
+/* 2timer_test.c
+ *
+ * This program demonstrates the use of POSIX.4 interval timers without
+ * queued signals. It simply creates a POSIX.4 interval timer that sends
+ * a normal signal when it expires. The handler for this signal prints
+ * a message, and increments a count. When the count reaches MAX_EXPIRATIONS,
+ * the timer is deleted, and the program exits.
+ */
+
+#include <sys/types.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <time.h>
+#include <errno.h>
+#include <signal.h>
+#ifdef __linux__
+#include <posix_time.h>
+#endif
+#include "utils.h"
+
+#define TIMER1_SIGNAL SIGRTMAX
+#define TIMER2_SIGNAL SIGRTMIN
+#define DATA_VAL 17
+#define MAX_EXPIRATIONS 10
+#define MAX_SIGNALS 30
+
+pid_t pid;
+int expirations;
+
+struct datum {
+ siginfo_t info;
+ int overrun;
+}datum[MAX_SIGNALS];
+
+void print_siginfo(struct datum *ptr)
+{
+ //int overrun = ptr->overrun;
+ siginfo_t *info = &ptr->info;
+ int overrun = info->si_overrun;
+ timer_t t;
+
+ printf("siginfo dump: ");
+ printf("si_signo: %d, ", info->si_signo);
+ printf("si_errno: %d, ", info->si_errno);
+ switch (info->si_code) {
+ case SI_TIMER:
+ t = *(timer_t*)info->si_value.sival_ptr;
+ printf("si_code: SI_TIMER, %d", t);
+#ifdef __linux__
+ printf(", timer id: %d", info->si_tid);
+#endif
+ if (overrun) {
+ printf(", overrun: %d", overrun);
+ }
+ if (overrun != ptr->overrun && ptr->overrun > 0){
+ printf(SETCOLOR_FAILURE
+ " info overrunn %d, getoverrun %d\n"
+ SETCOLOR_NORMAL,overrun,ptr->overrun);
+ global_error++;
+ } else {
+ printf("\n");
+ }
+ break;
+ default:
+ printf("si_code: %d\n", info->si_code);
+ break;
+ }
+}
+void print_siginfo2(siginfo_t *info) {
+ struct datum datum;
+
+ datum.info = *info;
+ datum.overrun = timer_getoverrun(info->si_tid);
+ print_siginfo(&datum);
+}
+
+void timer1_handler(int signo)
+{
+ printf("handler timer1 expired: signal %d\n", signo);
+ expirations++;
+}
+
+void timer1_action(int signo, siginfo_t *info, void *context)
+{
+ printf("action timer1 expired: signal %d\n", signo);
+ print_siginfo2(info);
+ expirations++;
+}
+
+void timer2_handler(int signo)
+{
+ printf("handler timer2 expired: signal %d\n", signo);
+}
+
+void timer2_action(int signo, siginfo_t *info, void *context)
+{
+ printf("action timer2 expired: signal %d\n", signo);
+ print_siginfo2(info);
+}
+int do_main(clock_t clock,int of1,int in1,int of2,int in2)
+{
+ timer_t t1, t2;
+ struct sigevent sig1, sig2;
+ struct itimerspec new_setting1, new_setting2, current;
+ struct sigaction sa;
+ sigset_t set;
+ //siginfo_t info;
+ struct datum *pptr,*ptr = &datum[0];
+
+ Try(pid = getpid());
+
+ expirations = 0;
+
+
+ /*
+ * Set up the signal event that will occur when the timer
+ * expires.
+ */
+ sig1.sigev_notify = SIGEV_SIGNAL;
+ sig1.sigev_signo = TIMER1_SIGNAL;
+ sig1.sigev_value.sival_ptr = &t1;
+
+ sig2.sigev_notify = SIGEV_SIGNAL;
+ sig2.sigev_signo = TIMER2_SIGNAL;
+ sig2.sigev_value.sival_ptr = &t2;
+
+ /*
+ * Initialize the timer setting structure.
+ */
+ new_setting1.it_value.tv_sec = 0L;
+ new_setting1.it_value.tv_nsec = of1;
+ new_setting1.it_interval.tv_sec = 0L;
+ new_setting1.it_interval.tv_nsec = in1;
+
+ new_setting2.it_value.tv_sec = 0L;
+ new_setting2.it_value.tv_nsec = of2;
+ new_setting2.it_interval.tv_sec = 0L;
+ new_setting2.it_interval.tv_nsec = in2;
+
+ /*
+ * Set up and install a signal handler for the signal that
+ * the timer will send.
+ */
+#if 0
+ sa.sa_handler = timer1_handler;
+ sa.sa_flags = 0;
+#else
+ sa.sa_flags = SA_SIGINFO;
+ sa.sa_sigaction = timer1_action;
+#endif
+ sigemptyset(&sa.sa_mask);
+
+ Try(sigaction(TIMER1_SIGNAL, &sa, NULL));
+#if 0
+ sa.sa_handler = timer2_handler;
+ sa.sa_flags = 0;
+#else
+ sa.sa_flags = SA_SIGINFO;
+ sa.sa_sigaction = timer2_action;
+#endif
+ sigemptyset(&sa.sa_mask);
+
+ Try(sigaction(TIMER2_SIGNAL, &sa, NULL));
+ /*
+ * Create and set the timer.
+ */
+
+ Try(timer_create(clock, &sig1, &t1));
+
+ Try(timer_create(clock, &sig2, &t2));
+
+ sigemptyset(&set);
+ sigaddset(&set, TIMER1_SIGNAL);
+ sigaddset(&set, TIMER2_SIGNAL);
+
+ sigprocmask(SIG_BLOCK, &set, NULL);
+
+ Try(timer_settime(t1, 0, &new_setting1, NULL));
+
+ timer_gettime(t1, ¤t);
+ printf("timer id %d: it_value=%ld.%09ld, it_interval=%ld.%09ld\n",
+ t1,
+ current.it_value.tv_sec,
+ current.it_value.tv_nsec,
+ current.it_interval.tv_sec,
+ current.it_interval.tv_nsec);
+ Try(timer_settime(t2, 0, &new_setting2, NULL));
+
+ timer_gettime(t2, ¤t);
+ printf("timer id %d: it_value=%ld.%09ld, it_interval=%ld.%09ld\n",
+ t2,
+ current.it_value.tv_sec,
+ current.it_value.tv_nsec,
+ current.it_interval.tv_sec,
+ current.it_interval.tv_nsec);
+
+ //sleep(1);
+ /*
+ * Busy wait until the timer expires MAX_EXPIRATIONS number
+ * of times.
+ */
+ while ((expirations < MAX_EXPIRATIONS) && (ptr != &datum[MAX_SIGNALS])) {
+ sigwaitinfo(&set, &ptr->info);
+ //ptr->overrun = timer_getoverrun(ptr->info.si_tid);
+ if (ptr->info.si_signo == TIMER2_SIGNAL) expirations++;
+ ptr++;
+ }
+ /*
+ * Delete the timer.
+ */
+ Try(timer_delete(t1));
+ Try(timer_delete(t2));
+ sigprocmask(SIG_UNBLOCK, &set, NULL);
+ pptr = &datum[0];
+ while ( pptr != ptr) {
+ print_siginfo(pptr);
+ pptr++;
+ }
+
+
+
+ return 0;
+}
+
+int main()
+{
+#if 0
+ printf("Using CLOCK_REALTIME \n");
+ do_main(CLOCK_REALTIME,12345678L,20000000L,10000000L,10000000L);
+ printf("Using CLOCK_MONOTONIC \n");
+ do_main(CLOCK_MONOTONIC,12345678L,20000000L,10000000L,10000000L);
+ printf("Using CLOCK_REALTIME_HR \n");
+ do_main(CLOCK_REALTIME_HR,12345678L,2000000L,10000000L,1000000L);
+ printf("Using CLOCK_MONOTONIC_HR \n");
+ do_main(CLOCK_MONOTONIC_HR,552345678L,20000L,10000000L,100L);
+#endif
+ printf("Using CLOCK_REALTIME_HR \n");
+ do_main(CLOCK_REALTIME_HR,552345678L,20000L,10000000L,16000L);
+ by_now();
+}
diff -urP -I \$Id:.*Exp \$ -X /usr/src/patch.exclude linux-2.5.36-kb/Documentation/high-res-timers/tests/Makefile linux/Documentation/high-res-timers/tests/Makefile
--- linux-2.5.36-kb/Documentation/high-res-timers/tests/Makefile Wed Dec 31 16:00:00 1969
+++ linux/Documentation/high-res-timers/tests/Makefile Fri Sep 27 10:58:18 2002
@@ -0,0 +1,77 @@
+#
+# Copyright (C) 1997 by the University of Kansas Center for Research,
+# Inc. This software was developed by the Information and
+# Telecommunication Technology Center (ITTC) at the University of
+# Kansas. Partial funding for this project was provided by Sprint. This
+# software may be used and distributed according to the terms of the GNU
+# Public License, incorporated herein by reference. Neither ITTC nor
+# Sprint accept any liability whatsoever for this product.
+#
+# This project was developed under the direction of Dr. Douglas Niehaus.
+#
+# Authors: Shyam Pather, Balaji Srinivasan
+#
+# Please send bug-reports/suggestions/comments to posix@ittc.ukans.edu
+#
+# Further details about this project can be obtained at
+# http://hegel.ittc.ukans.edu/projects/posix/
+#
+
+# Makefile for POSIX.4 test/example programs.
+#
+# Targets:
+# time_tests --> POSIX.4 interval timers and time_query tests
+
+OS = $(shell uname)
+
+CROSS_COMPILE =
+
+AS = $(CROSS_COMPILE)as
+LD = $(CROSS_COMPILE)ld
+CC = $(CROSS_COMPILE)gcc
+POSIX_LIBDIR = ../lib
+POSIX_INCDIR = ../lib
+# to pick up the modified files, with out putting them in /usr/include
+USE_INCDIR = ../usr_incl
+debug =
+CFLAGS = -g -Wall $(debug)
+ifeq ($(OS),Linux)
+CPPFLAGS = -D_POSIX_TIMERS=1 -D_GNU_SOURCE -I$(POSIX_INCDIR) -I$(USE_INCDIR)
+LDFLAGS = -L$(POSIX_LIBDIR)
+LDLIBS = -lposixtime
+endif
+SOURCES = 2timer_test.c \
+ timer_test.c \
+ jitter_test.c \
+ clock_getrestest.c \
+ clock_gettimetest.c \
+ clock_settimetest.c \
+ clock_gettimetest2.c \
+ clock_gettimetest3.c \
+ clock_gettimetest4.c \
+ clock_gettimetest5.c \
+ clock_nanosleeptest.c \
+ performance.c
+
+PROGS = $(SOURCES:.c=)
+
+all: $(PROGS)
+
+$(PROGS): $(POSIX_LIBDIR)/libposixtime.so
+
+%: %.c
+ $(CC) $(CPPFLAGS) $(CFLAGS) $< -o $@ $(LDFLAGS) $(LDLIBS)
+
+clean:
+ $(RM) $(PROGS) *~ *.o core .depend
+
+
+.depend depend: $(SOURCES)
+ $(CC) -M $(CPPFLAGS) $(SOURCES) | \
+ sed -e '/:/s|\(^[^ :]*\)\.o|\1|' > .depend
+ chmod +x do_test
+ make
+
+# This above make insures that we have the .depend when doing the build.
+
+include .depend
diff -urP -I \$Id:.*Exp \$ -X /usr/src/patch.exclude linux-2.5.36-kb/Documentation/high-res-timers/tests/README linux/Documentation/high-res-timers/tests/README
--- linux-2.5.36-kb/Documentation/high-res-timers/tests/README Wed Dec 31 16:00:00 1969
+++ linux/Documentation/high-res-timers/tests/README Fri Sep 27 10:58:35 2002
@@ -0,0 +1,101 @@
+ How to use the time test programs
+ =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
+
+ By Shyam Pather (spather@ittc.ukans.edu)
+ Updated by George Anzinger (george@mvista.com)
+ last edit: <20020927.1657.03>
+
+
+See: http://sourceforge.net/projects/high-res-timers/
+
+for more information about this project.
+
+About this document
+-------------------
+
+This document describes the use of the test programs supplied with the
+high res timing patch. This document does not explain in detail what
+each program does. That information is in a comment at the top of each
+source file. This document instead explains how to run the tests -
+what to type when, what you should expect to see etc.
+
+Building the tests
+------------------
+
+These test programs require the "libposixtime.a" library in order to
+build. Run "make" from the "lib" directory first, and then run "make"
+in this directory in order to build the tests.
+
+Most of these tests use the utils.h in the tests directory which defines
+various ways of printing results. We are slowly changing the tests to
+keep track of failures and to print error reports in color (red) and
+summary reports in yellow if all is OK, other wise this too will be in
+red. The do_test script will run most of the tests and print a summary
+of the results. Note that this script assumes that there is a "doi"
+program or script that allows root permissions, which are needed for the
+clock_settime test. You can remove "doi" if you run "do_tests" with
+root permissions, or just understand that the test will fail (with
+proper red line error reporting).
+
+Running the tests
+-----------------
+
+Run "2timer_test". You will see several timer expiration messages. The
+number of messages you seen varies, depending on whether the program is
+being run from the console or from X (this has to do with the speed of
+I/O, but is not a "problem" - this is a very simple program that does
+not use sophisticated synchronization methods to control the order in
+which events occur, and thus the timer can sometimes fire more times
+that necessary). You can easily modify this program to run thru various
+times and clocks, see the final lines.
+
+The output will be one line for each timer expiration plus a couple for
+details on the particular test.
+
+This is sufficient to show that timers can be created, set, and deleted.
+
+ =-*-=-*-=-*-=
+
+Run "clock_getrestest". The output should look something like:
+
+(Resolution of CLOCK_REALTIME) tv_sec == 0, tv_nsec == 10000000
+(Resolution of CLOCK_REALTIME_HR) tv_sec == 0, tv_nsec == 1000
+
+This simply shows the resolution of the two defined system clocks.
+
+ =-*-=-*-=-*-=
+
+Run "clock_gettimetest". This program simply calls clock_gettime() in
+a loop, and should show a monotonically increasing series of time
+values, such as:
+
+(1074169249) tv_sec == 869352130, tv_nsec == 416550000
+(1074169250) tv_sec == 869352130, tv_nsec == 416734000
+(1074169251) tv_sec == 869352130, tv_nsec == 416917000
+(1074169252) tv_sec == 869352130, tv_nsec == 417101000
+(1074169253) tv_sec == 869352130, tv_nsec == 417284000
+(1074169254) tv_sec == 869352130, tv_nsec == 417469000
+
+ =-*-=-*-=-*-=
+
+Run "clock_gettimetest2". This program is similar to the one above,
+except that it interleaves calls to clock_gettime() with calls to
+gettimeofday(), the standard Linux time query system call. Again the
+time values should be montonically increasing, and the clock_gettime()
+results should have a higher resolution than those of gettimeofday()
+(gettimeofday() reports only in terms of microseconds (usec), whereas
+clock_gettime() reports in terms of nanoseconds (nsec)). The output
+should look something like:
+
+(812) tv_sec == 869352285, tv_usec == 263945
+(812) tv_sec == 869352285, tv_nsec == 264101000
+(813) tv_sec == 869352285, tv_usec == 264266
+(813) tv_sec == 869352285, tv_nsec == 264422000
+(814) tv_sec == 869352285, tv_usec == 264586
+(814) tv_sec == 869352285, tv_nsec == 264743000
+
+This shows that clock_gettime() returns time values consistent with
+those of the standard Linux time querying system call.
+
+
+
Binary files linux-2.5.36-kb/Documentation/high-res-timers/tests/clock_getrestest and linux/Documentation/high-res-timers/tests/clock_getrestest differ
diff -urP -I \$Id:.*Exp \$ -X /usr/src/patch.exclude linux-2.5.36-kb/Documentation/high-res-timers/tests/clock_getrestest.c linux/Documentation/high-res-timers/tests/clock_getrestest.c
--- linux-2.5.36-kb/Documentation/high-res-timers/tests/clock_getrestest.c Wed Dec 31 16:00:00 1969
+++ linux/Documentation/high-res-timers/tests/clock_getrestest.c Fri Sep 27 10:58:52 2002
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 1997 by the University of Kansas Center for Research,
+ * Inc. This software was developed by the Information and
+ * Telecommunication Technology Center (ITTC) at the University of
+ * Kansas. Partial funding for this project was provided by Sprint. This
+ * software may be used and distributed according to the terms of the GNU
+ * Public License, incorporated herein by reference. Neither ITTC nor
+ * Sprint accept any liability whatsoever for this product.
+ *
+ * This project was developed under the direction of Dr. Douglas Niehaus.
+ *
+ * Authors: Shyam Pather, Balaji Srinivasan
+ *
+ * Please send bug-reports/suggestions/comments to posix@ittc.ukans.edu
+ *
+ * Further details about this project can be obtained at
+ * http://hegel.ittc.ukans.edu/projects/posix/
+ */
+
+/* clock_getrestest.c
+ *
+ * This program simply calls clock_getres().
+ *
+ * Author: Shyam Pather
+ */
+
+#include <stdio.h>
+#include <time.h>
+#ifdef __linux__
+#include <posix_time.h>
+#endif
+#include "utils.h"
+
+int main() {
+ struct timespec ts;
+
+ Try(clock_getres(CLOCK_REALTIME, &ts));
+
+ printf("(Resolution of CLOCK_REALTIME) tv_sec = %ld, tv_nsec = %ld\n",
+ ts.tv_sec, ts.tv_nsec);
+
+
+ try(EINVAL,clock_getres(33, &ts));
+
+ try(0,clock_getres(CLOCK_REALTIME, NULL));
+
+ try(EFAULT,clock_getres(CLOCK_REALTIME, (struct timespec*)1));
+
+ Try(clock_getres(CLOCK_MONOTONIC, &ts));
+
+ printf("(Resolution of CLOCK_MONOTONIC) tv_sec = %ld, tv_nsec = %ld\n",
+ ts.tv_sec, ts.tv_nsec);
+
+
+ Try(clock_getres(CLOCK_REALTIME_HR, &ts));
+
+ printf("(Resolution of CLOCK_REALTIME_HR) tv_sec = %ld, tv_nsec = %ld\n",
+ ts.tv_sec, ts.tv_nsec);
+
+
+ try(EINVAL,clock_getres(33, &ts));
+
+ try(0,clock_getres(CLOCK_REALTIME_HR, NULL));
+
+ try(EFAULT,clock_getres(CLOCK_REALTIME_HR, (struct timespec*)1));
+
+ Try(clock_getres(CLOCK_MONOTONIC_HR, &ts));
+
+ printf("(Resolution of CLOCK_MONOTONIC_HR) tv_sec = %ld, tv_nsec = %ld\n",
+ ts.tv_sec, ts.tv_nsec);
+
+ by_now();
+}
Binary files linux-2.5.36-kb/Documentation/high-res-timers/tests/clock_gettimetest and linux/Documentation/high-res-timers/tests/clock_gettimetest differ
diff -urP -I \$Id:.*Exp \$ -X /usr/src/patch.exclude linux-2.5.36-kb/Documentation/high-res-timers/tests/clock_gettimetest.c linux/Documentation/high-res-timers/tests/clock_gettimetest.c
--- linux-2.5.36-kb/Documentation/high-res-timers/tests/clock_gettimetest.c Wed Dec 31 16:00:00 1969
+++ linux/Documentation/high-res-timers/tests/clock_gettimetest.c Fri Sep 27 10:59:20 2002
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 1997 by the University of Kansas Center for Research,
+ * Inc. This software was developed by the Information and
+ * Telecommunication Technology Center (ITTC) at the University of
+ * Kansas. Partial funding for this project was provided by Sprint. This
+ * software may be used and distributed according to the terms of the GNU
+ * Public License, incorporated herein by reference. Neither ITTC nor
+ * Sprint accept any liability whatsoever for this product.
+ *
+ * This project was developed under the direction of Dr. Douglas Niehaus.
+ *
+ * Authors: Shyam Pather, Balaji Srinivasan
+ *
+ * Please send bug-reports/suggestions/comments to posix@ittc.ukans.edu
+ *
+ * Further details about this project can be obtained at
+ * http://hegel.ittc.ukans.edu/projects/posix/
+ */
+
+/* clock_gettimetest.c
+ *
+ * This program simply calls clock_gettime() in a loop. Time values
+ * displayed should be monotonically increasing.
+ */
+
+#include <stdio.h>
+#include <time.h>
+#ifdef __linux__
+#include <posix_time.h>
+#endif
+#include "utils.h"
+
+int main() {
+ struct timespec ts;
+ int bogus_clock = 33;
+
+ Try(clock_gettime(CLOCK_REALTIME, &ts));
+
+ printf("clock_gettime(CLOCK_REALTIME) tv_sec == %ld, tv_nsec == %ld\n",
+ ts.tv_sec, ts.tv_nsec);
+
+ try(EINVAL,clock_gettime(bogus_clock, &ts));
+
+ try(EFAULT, clock_gettime(CLOCK_REALTIME, NULL));
+
+ try(EFAULT,clock_gettime(CLOCK_REALTIME, (struct timespec*)1));
+ try(0,clock_gettime(CLOCK_MONOTONIC, &ts));
+
+ printf("clock_gettime(CLOCK_MONOTONIC) tv_sec == %ld, tv_nsec == %ld\n",
+ ts.tv_sec, ts.tv_nsec);
+ by_now();
+}
+
+
+
+
Binary files linux-2.5.36-kb/Documentation/high-res-timers/tests/clock_gettimetest2 and linux/Documentation/high-res-timers/tests/clock_gettimetest2 differ
diff -urP -I \$Id:.*Exp \$ -X /usr/src/patch.exclude linux-2.5.36-kb/Documentation/high-res-timers/tests/clock_gettimetest2.c linux/Documentation/high-res-timers/tests/clock_gettimetest2.c
--- linux-2.5.36-kb/Documentation/high-res-timers/tests/clock_gettimetest2.c Wed Dec 31 16:00:00 1969
+++ linux/Documentation/high-res-timers/tests/clock_gettimetest2.c Fri Sep 27 10:59:41 2002
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 1997 by the University of Kansas Center for Research,
+ * Inc. This software was developed by the Information and
+ * Telecommunication Technology Center (ITTC) at the University of
+ * Kansas. Partial funding for this project was provided by Sprint. This
+ * software may be used and distributed according to the terms of the GNU
+ * Public License, incorporated herein by reference. Neither ITTC nor
+ * Sprint accept any liability whatsoever for this product.
+ *
+ * This project was developed under the direction of Dr. Douglas Niehaus.
+ *
+ * Authors: Shyam Pather, Balaji Srinivasan
+ *
+ * Please send bug-reports/suggestions/comments to posix@ittc.ukans.edu
+ *
+ * Further details about this project can be obtained at
+ * http://hegel.ittc.ukans.edu/projects/posix/
+ */
+
+/* clock_gettimetest2.c
+ *
+ * This program simply calls gettimeofday(), followed by clock_gettime()
+ * in a loop. The sequence of time values printed should be monotonically
+ * increasing. The time values returned by clock_gettimeofday() have greater
+ * accuracy than those returned by gettimeofday().
+ */
+
+#include <stdio.h>
+#include <time.h>
+#include <sys/time.h>
+#ifdef __linux__
+#include <posix_time.h>
+#endif
+#include "utils.h"
+
+#define N 25
+
+int main() {
+ struct timespec ts[N],tvs;
+ struct timeval tv[N],tvt;
+ int i = 0, retval;
+
+ for (;i < N;i++) {
+ retval = gettimeofday(&tv[i], NULL);
+ if (retval) {
+ myperror("gettimeofday() failed");
+ exit(1);
+ }
+
+ retval = clock_gettime(CLOCK_REALTIME, &ts[i]);
+ if (retval) {
+ myperror("clock_gettime() failed");
+ exit(1);
+ }
+ }
+ for (i=0;i < N;i++) {
+ printf("(%d) tv_sec = %ld, tv_usec*1000 = %ld000\n",i,
+ tv[i].tv_sec, tv[i].tv_usec);
+ printf("(%d) tv_sec = %ld, tv_nsec = %ld\n",i,
+ ts[i].tv_sec, ts[i].tv_nsec);
+ timeval_to_timespec(&tv[i],&tvs);
+ assert( timer_gt(&ts[i],&tvs));
+ if ( i < (N -1)){
+ timespec_to_timeval(&ts[i],&tvt);
+ assert( timevaldiff(&tv[i+1],&tvt) >= 0);
+ }
+
+ }
+ by_now();
+}
Binary files linux-2.5.36-kb/Documentation/high-res-timers/tests/clock_gettimetest3 and linux/Documentation/high-res-timers/tests/clock_gettimetest3 differ
diff -urP -I \$Id:.*Exp \$ -X /usr/src/patch.exclude linux-2.5.36-kb/Documentation/high-res-timers/tests/clock_gettimetest3.c linux/Documentation/high-res-timers/tests/clock_gettimetest3.c
--- linux-2.5.36-kb/Documentation/high-res-timers/tests/clock_gettimetest3.c Wed Dec 31 16:00:00 1969
+++ linux/Documentation/high-res-timers/tests/clock_gettimetest3.c Fri Sep 27 10:59:53 2002
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 1997 by the University of Kansas Center for Research,
+ * Inc. This software was developed by the Information and
+ * Telecommunication Technology Center (ITTC) at the University of
+ * Kansas. Partial funding for this project was provided by Sprint. This
+ * software may be used and distributed according to the terms of the GNU
+ * Public License, incorporated herein by reference. Neither ITTC nor
+ * Sprint accept any liability whatsoever for this product.
+ *
+ * This project was developed under the direction of Dr. Douglas Niehaus.
+ *
+ * Authors: Shyam Pather, Balaji Srinivasan
+ *
+ * Please send bug-reports/suggestions/comments to posix@ittc.ukans.edu
+ *
+ * Further details about this project can be obtained at
+ * http://hegel.ittc.ukans.edu/projects/posix/
+ */
+
+/* clock_gettimetest3.c
+ *
+ * This program simply calls gettimeofday(), followed by clock_gettime()
+ * in a loop. The sequence of time values printed should be monotonically
+ * increasing. The time values returned by clock_gettimeofday() have greater
+ * accuracy than those returned by gettimeofday().
+ */
+
+#include <stdio.h>
+#include <time.h>
+#include <sys/time.h>
+#ifdef __linux__
+#include <posix_time.h>
+#endif
+#include "utils.h"
+
+#define MAX_SAMPLES 25
+
+int main() {
+ struct timespec ts, start, end, end2;
+ struct timeval tv;
+ int i = 0, retval;
+ int delta;
+
+ printf("#sample\tdelta (usec)\n");
+ for (i = 0; i < MAX_SAMPLES; i++) {
+ retval = gettimeofday(&tv, NULL);
+ if (retval) {
+ myperror("gettimeofday() failed");
+ }
+
+ clock_gettime(CLOCK_MONOTONIC, &start);
+ retval = clock_gettime(CLOCK_REALTIME, &ts);
+ clock_gettime(CLOCK_MONOTONIC, &end);
+ clock_gettime(CLOCK_MONOTONIC, &end2);
+ if (retval) {
+ myperror("clock_gettime() failed");
+ }
+
+ delta = (ts.tv_sec - tv.tv_sec) * 1000000 +
+ (ts.tv_nsec / 1000 - tv.tv_usec);
+
+ printf("%d\t%d ", i, delta);
+ printf("start %ld.%09ld, end %ld.%09ld, end2 %ld.%09ld delta %ld.%09ld delta2 %ld.%09ld\n",
+ start.tv_sec, start.tv_nsec, end.tv_sec, end.tv_nsec,
+ end2.tv_sec, end2.tv_nsec,
+ end.tv_sec - start.tv_sec, end.tv_nsec - start.tv_nsec,
+ end2.tv_sec - end.tv_sec, end2.tv_nsec - end.tv_nsec);
+ }
+ by_now();
+}
Binary files linux-2.5.36-kb/Documentation/high-res-timers/tests/clock_gettimetest4 and linux/Documentation/high-res-timers/tests/clock_gettimetest4 differ
diff -urP -I \$Id:.*Exp \$ -X /usr/src/patch.exclude linux-2.5.36-kb/Documentation/high-res-timers/tests/clock_gettimetest4.c linux/Documentation/high-res-timers/tests/clock_gettimetest4.c
--- linux-2.5.36-kb/Documentation/high-res-timers/tests/clock_gettimetest4.c Wed Dec 31 16:00:00 1969
+++ linux/Documentation/high-res-timers/tests/clock_gettimetest4.c Fri Sep 27 11:00:05 2002
@@ -0,0 +1,37 @@
+#include <stdio.h>
+#include <time.h>
+#include <sys/time.h>
+#ifdef __linux__
+#include <posix_time.h>
+#endif
+
+#define MAX_SAMPLES 25
+
+int timespec_diff(struct timespec *start, struct timespec *end)
+{
+ return (end->tv_sec - start->tv_sec) * 1000000000 +
+ (end->tv_nsec - start->tv_nsec);
+}
+
+
+int main(void)
+{
+ struct timespec start_rt, end_rt;
+ struct timespec start_tsc, end_tsc;
+ int i;
+ int delta_rt, delta_tsc;
+
+ printf("Measured times to get times (in nano secs):\n");
+ for (i = 0; i < MAX_SAMPLES; i++) {
+ clock_gettime(CLOCK_REALTIME, &start_rt);
+ clock_gettime(CLOCK_REALTIME, &end_rt);
+ clock_gettime(CLOCK_MONOTONIC, &start_tsc);
+ clock_gettime(CLOCK_MONOTONIC, &end_tsc);
+ delta_rt = timespec_diff(&start_rt, &end_rt);
+ delta_tsc = timespec_diff(&start_tsc, &end_tsc);
+
+ printf("CLOCK_REALTIME = %9d\tCLOCK_MONOTONIC = %9d\n",
+ delta_rt, delta_tsc);
+ }
+ return 0;
+}
Binary files linux-2.5.36-kb/Documentation/high-res-timers/tests/clock_gettimetest5 and linux/Documentation/high-res-timers/tests/clock_gettimetest5 differ
diff -urP -I \$Id:.*Exp \$ -X /usr/src/patch.exclude linux-2.5.36-kb/Documentation/high-res-timers/tests/clock_gettimetest5.c linux/Documentation/high-res-timers/tests/clock_gettimetest5.c
--- linux-2.5.36-kb/Documentation/high-res-timers/tests/clock_gettimetest5.c Wed Dec 31 16:00:00 1969
+++ linux/Documentation/high-res-timers/tests/clock_gettimetest5.c Fri Sep 27 11:00:15 2002
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 1997 by the University of Kansas Center for Research,
+ * Inc. This software was developed by the Information and
+ * Telecommunication Technology Center (ITTC) at the University of
+ * Kansas. Partial funding for this project was provided by Sprint. This
+ * software may be used and distributed according to the terms of the GNU
+ * Public License, incorporated herein by reference. Neither ITTC nor
+ * Sprint accept any liability whatsoever for this product.
+ *
+ * This project was developed under the direction of Dr. Douglas Niehaus.
+ *
+ * Authors: Shyam Pather, Balaji Srinivasan
+ *
+ * Please send bug-reports/suggestions/comments to posix@ittc.ukans.edu
+ *
+ * Further details about this project can be obtained at
+ * http://hegel.ittc.ukans.edu/projects/posix/
+ */
+
+/* clock_gettimetest3.c
+ *
+ * This program simply calls clock_gettime(CLOCK_REALTIME),
+ * followed by clock_gettime(CLOCK_MONOTONIC) and figures the difference
+ * between them. It then pauses for a few seconds and does it again.
+ * It then prints the difference.
+ */
+
+#include <stdio.h>
+#include <time.h>
+#include <sys/time.h>
+#ifdef __linux__
+#include <posix_time.h>
+#endif
+#include "utils.h"
+
+#define MAX_SAMPLES 25
+#define few_seconds 1
+
+double sqew(void)
+{
+ struct timespec tr[MAX_SAMPLES], tm[MAX_SAMPLES];
+ int i;
+ double result;
+
+ for (i = 0; i < MAX_SAMPLES; i++) {
+ Try(clock_gettime(CLOCK_MONOTONIC,&tm[i]));
+ Try(clock_gettime(CLOCK_REALTIME,&tr[i]));
+ result += timerdiff(&tr[i],&tm[i]);
+ }
+ return result / MAX_SAMPLES;
+}
+
+
+int main() {
+ double first;
+ int i;
+
+ printf("Clock sqew test\n");
+ for ( i = 0; i < 30; i++){
+ first = sqew();
+ printf("sqew %f \n",first);
+ sleep(few_seconds);
+ }
+ by_now();
+}
Binary files linux-2.5.36-kb/Documentation/high-res-timers/tests/clock_nanosleeptest and linux/Documentation/high-res-timers/tests/clock_nanosleeptest differ
diff -urP -I \$Id:.*Exp \$ -X /usr/src/patch.exclude linux-2.5.36-kb/Documentation/high-res-timers/tests/clock_nanosleeptest.c linux/Documentation/high-res-timers/tests/clock_nanosleeptest.c
--- linux-2.5.36-kb/Documentation/high-res-timers/tests/clock_nanosleeptest.c Wed Dec 31 16:00:00 1969
+++ linux/Documentation/high-res-timers/tests/clock_nanosleeptest.c Fri Sep 27 11:00:29 2002
@@ -0,0 +1,390 @@
+/*
+ * tests/clock_nanosleeptest.c - test program for clock_nanosleep(3)
+ *
+ * 30 March 2002
+ *
+ * Robert Love <rml@tech9.net>, MontaVista Software
+ */
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include <string.h>
+#include <linux/unistd.h>
+#include "../lib/posix_time.h"
+#include "utils.h"
+
+#define CLOCK_BAD 55 /* an invalid clock id */
+#define TIMER_BAD 55 /* an invalid flag */
+#define BAD_POINTER (NULL+1) /* NULL is too obvious */
+#define SIGNAL1 SIGUNUSED
+#define SIGNAL2 SIGHUP
+WAIT_VARS();
+
+/*
+ * some funky signal handlers, don't do much, but allow us to notice them
+ */
+void handler1(int signo, siginfo_t *info, void *context)
+{
+ printf("handler1 entered: signal %d\n", signo);
+}
+int waitf;
+void handler2(int signo, siginfo_t *info, void *context)
+{
+ debug(printf("handler2 entered: signal %d\n", signo););
+ waitf = 1;
+}
+
+int test(clock_t clock,int EPS)
+{
+ struct timespec ns, ts, rs, bs;
+ int i;
+ double diff;
+ pid_t child;
+ sigset_t new_mask;
+// Try(NSEC_PER_SEC == 1000000000?0:-1);
+
+ ts.tv_sec = 0;
+ ts.tv_nsec = 100;
+
+ sigemptyset(&new_mask);
+ sigaddset(&new_mask, SIGNAL1);
+ //sigaddset(&new_mask, SIGNAL2);
+ sigaddset(&new_mask, SIGSTOP);
+ sigaddset(&new_mask, SIGCONT);
+ sigprocmask(SIG_UNBLOCK, &new_mask, NULL);
+ wait_setup(SIGNAL2);
+
+ /* bad clock id */
+ try(EINVAL, clock_nanosleep(CLOCK_BAD, 0, &ts, NULL));
+
+ /* bad rqtp pointer */
+ try(EFAULT, clock_nanosleep(clock, 0, BAD_POINTER, NULL));
+
+ /* bad rmtp pointer */
+ try(EFAULT, clock_nanosleep(clock, 0, &ts, BAD_POINTER));
+
+ /* invalid sleep value (tv_nsec < 0) */
+ ts.tv_nsec = -1;
+ try(EINVAL, clock_nanosleep(clock, 0, &ts, NULL));
+
+ /* invalid sleep value (tv_nsec >= 1,000,000,000) */
+ ts.tv_nsec = 1000000000;
+ try(EINVAL, clock_nanosleep(clock, 0, &ts, NULL));
+
+ /* valid 200ns sleep */
+ ts.tv_nsec = 200;
+ try(0, clock_nanosleep(clock, 0, &ts, &rs));
+
+ /* is rmtp sane (should be zero) ? */
+ if (rs.tv_sec || rs.tv_nsec ){
+ myerror("return rmtp is bad ");
+ fprintf(stderr, SETCOLOR_FAILURE
+ "(%lds, %ldns)\n"
+ SETCOLOR_NORMAL,rs.tv_sec,rs.tv_nsec);
+ }
+
+ /* if TIMER_ABSTIME is specified, rmtp should not be touched */
+ rs.tv_sec = rs.tv_nsec = 55;
+ Try(clock_gettime(clock, &ts));
+ ts.tv_nsec += 1000;
+ try(0,clock_nanosleep(clock, TIMER_ABSTIME, &ts, &rs));
+ if (rs.tv_sec != 55 || rs.tv_nsec != 55){
+ myerror("TIME_ABSTIME specified and rmtp touched");
+ fprintf(stderr, SETCOLOR_FAILURE
+ "(%lds, %ldns)!\n"
+ SETCOLOR_NORMAL, rs.tv_sec, rs.tv_nsec);
+ }
+
+ /*
+ * make sure we awake reasonably close to the time requested and
+ * never awake earlier than requested
+ */
+
+ for (i = 0; i < 5; i++) {
+ double diff;
+ int dot = 0;
+ Try(clock_gettime(clock, &bs));
+ ts.tv_sec = 1;
+ ts.tv_nsec = 150000;
+ Try(clock_nanosleep(clock, 0, &ts, NULL));
+ timersum(&bs,&bs,&ts);// expected wake up time
+ roundtores(&bs,1000);
+
+ Try(clock_gettime(clock, &ns));
+
+ if ((diff = timerdiff(&ns, &bs)) > EPS || diff < 0){
+ char *ls = long_short(diff);
+ if( dot) fprintf(stderr, "\n");
+ myerror("slept too");
+ fprintf(stderr, SETCOLOR_FAILURE
+ "%s!\n requested:\t%lds %ldns\n"
+ " now:\t\t%lds %ldns\n"
+ " ititeration %d, diff is %12.9fsec\n"
+ SETCOLOR_NORMAL, ls,
+ bs.tv_sec, bs.tv_nsec,
+ ns.tv_sec, ns.tv_nsec, i, diff);
+ dot = 0;
+
+ }else{
+ fprintf(stderr, ".");
+ dot = 1;
+ }
+ }
+ /*
+ * Now for abs time...
+ * make sure we awake reasonably close to the time requested and
+ * never awake earlier than requested
+ */
+ for (i = 0; i < 5; i++) {
+ double diff;
+ int dot = 0;
+ Try(clock_gettime(clock, &ts));
+ ts.tv_sec++;
+ ts.tv_nsec += 150000;
+ roundtores(&ts,1); // cheap normalization
+ Try(clock_nanosleep(clock, TIMER_ABSTIME, &ts, NULL));
+
+ Try(clock_gettime(clock, &ns));
+ roundtores(&ts,1000);
+
+ if ((diff = timerdiff(&ns, &ts)) > EPS || diff < 0){
+ char *ls = long_short(diff);
+ if( dot) fprintf(stderr, "\n");
+ myerror("slept too ");
+
+ fprintf(stderr, SETCOLOR_FAILURE
+ "%s!\n requested:\t%lds %ldns\n"
+ " now:\t\t%lds %ldns\n"
+ " diff is %12.9fsec\n" SETCOLOR_NORMAL, ls,
+ ts.tv_sec, ts.tv_nsec,
+ ns.tv_sec, ns.tv_nsec, diff);
+ dot = 0;
+
+ }else{
+ fprintf(stderr, ".");
+ dot = 1;
+ }
+
+ }
+ /*
+ * Now for some more interesting tests. First, what happens
+ * if we interrupt nanosleep. To do this we fork so we have a
+ * child that can cry... uh interrupt us at importune times.
+ */
+ fprintf(stderr, "\nTesting signal behavor...\n");
+ wait_flush();
+ if(!fork()){
+ /* The child... */
+
+ ts.tv_sec = 0;
+ ts.tv_nsec = 10000000;
+
+ Try(clock_nanosleep(clock, 0, &ts, NULL));
+ Try(kill(getppid(),SIGNAL1));
+ usleep(5000);
+ wait_send(getppid());
+ exit(0);
+ }
+ /* The parent ... */
+ Try(clock_gettime(clock, &bs));
+ ts.tv_sec = 1;
+ ts.tv_nsec = 0;
+ try(EINTR,clock_nanosleep(clock, 0, &ts, &rs));
+ Try(clock_gettime(clock, &ns));
+ fprintf(stderr,"Time remaining is %lds %ldns\n",rs.tv_sec,rs.tv_nsec);
+
+ timersum(&bs,&bs,&ts);// expected wake up time
+ roundtores(&bs,1000);
+ timersum(&ns,&ns,&rs);// wake up time + remaining time
+ debug(fprintf(stderr,"Waiting for sig2...\n");fflush(stderr););
+ wait_sync(); // wait for sync point
+
+ if ((diff = timerdiff(&ns, &bs)) > EPS || diff < 0){
+ char *ls = long_short(diff);
+ myerror("slept too");
+ fprintf(stderr, SETCOLOR_FAILURE
+ "%s!\n requested:\t%lds %ldns\n"
+ " now:\t\t%lds %ldns\n"
+ " diff is %12.9fsec\n" SETCOLOR_NORMAL, ls,
+ bs.tv_sec, bs.tv_nsec,
+ ns.tv_sec, ns.tv_nsec, diff);
+
+ }
+ waitpid(child, &i, 0);
+ /*
+ * For this one we do a signal that is not delivered to the
+ * task, and make sure that nanosleep keep running
+ */
+ fprintf(stderr, "\nTesting undelivered signal behavor...\n");
+ wait_flush();
+ if(!(child = fork())){
+ /* The child... make this abs, just for grins */
+ Try(clock_gettime(clock, &bs));
+ ts.tv_sec = 1;
+ ts.tv_nsec = 0;
+ timersum(&bs,&ts,&bs);
+ try(0,clock_nanosleep(clock, TIMER_ABSTIME, &bs, &rs));
+ Try(clock_gettime(clock, &ns));
+ fprintf(stderr,"Time remaining is %lds %ldns\n",
+ rs.tv_sec,rs.tv_nsec);
+
+ // timersum(&bs,&bs,&ts);// expected wake up time
+ roundtores(&bs,1000);
+ timersum(&ns,&ns,&rs);// wake up time + remaining time
+
+
+ if ((diff = timerdiff(&ns, &bs)) > EPS || diff < 0){
+ char *ls = long_short(diff);
+ myerror("slept too");
+ fprintf(stderr, SETCOLOR_FAILURE
+ "%s!\n requested:\t%lds %ldns\n"
+ " now:\t\t%lds %ldns\n"
+ " diff is %12.9fsec\n" SETCOLOR_NORMAL, ls,
+ bs.tv_sec, bs.tv_nsec,
+ ns.tv_sec, ns.tv_nsec, diff);
+
+ }
+ wait_send(getppid());
+ exit(0);
+
+ }else {
+ /* The parent ... */
+ ts.tv_sec = 0;
+ ts.tv_nsec = 10000000;
+ Try(clock_nanosleep(clock, 0, &ts, NULL));
+ kill(child,SIGSTOP);
+ Try(clock_nanosleep(clock, 0, &ts, NULL));
+ kill(child,SIGCONT);
+ }
+ wait_sync();
+ waitpid(child, &i, 0);
+ /*
+ * Now we get really dirty. The spec says we should be able to
+ * reset the clock while clock_nanosleep(absolute) is at work and
+ * still wake up at the correct time. We need to be su to do
+ * this, but then that will just fall out as an error.
+ * We will let the child do the clock setting...
+ */
+ if( clock == CLOCK_MONOTONIC || clock == CLOCK_MONOTONIC_HR){
+ /*
+ * can not do this test if we can not set the clock...
+ */
+ return 0;
+ }
+#define CHILD_DELAY 10000000;
+
+ fprintf(stderr, "\nTesting behavor with clock seting...\n");
+ for (i = -4; i < 4; i+=8){
+ int exv;
+ char * what = i > 0 ? "Advancing" :"Retarding";
+ wait_flush();
+ fprintf(stderr,"%s the clock\n",what);
+ if(!(child = fork())){
+ /* The child... */
+
+ ts.tv_sec = 0;
+ ts.tv_nsec = CHILD_DELAY;
+ Try(clock_nanosleep(clock, 0, &ts, NULL));
+ /* Advance/ retard the clock */
+ Try(clock_gettime(clock,&bs));
+ ts = bs;
+ ts.tv_sec += i;
+ if(clock_settime(clock,&ts) <0){
+ if( errno == EPERM){
+ fprintf(stderr,SETCOLOR_WARNING
+ "Must be able to set time to do"
+ " this test, come back then:)\n"
+ SETCOLOR_NORMAL);
+ //
+ // Generate EINTR error to log it
+ //
+ Try(kill(getppid(),SIGNAL1));
+ exit(0);
+ }
+ Try(("clock_settime error",-1));
+ }else{
+ Try(clock_gettime(clock,&ns));
+ diff = timerdiff(&ns,&ts);
+ if((diff < 0) || (diff > EPS)){
+ fprintf(stderr,SETCOLOR_WARNING
+ "Clock did not seem to move"
+ "\n was:\t\t%lds %ldns"
+ "\n requested:\t%lds %ldns\n"
+ " now:\t\t%lds %ldns\n"
+ " diff is %12.9fsec\n"
+ SETCOLOR_NORMAL,
+ bs.tv_sec, bs.tv_nsec,
+ ts.tv_sec, ts.tv_nsec,
+ ns.tv_sec, ns.tv_nsec, diff);
+ }
+
+ }
+ wait_sync();
+ Try(clock_gettime(clock,&ts));
+ ts.tv_sec -= i;
+ Try(clock_settime(clock,&ts));
+ exit(0);
+ }
+ /* The parent ... */
+ Try(clock_gettime(clock, &ts));
+ rs.tv_sec = 0;
+ rs.tv_nsec = 500000000;
+ timersum(&ts,&ts,&rs);
+ try(0,clock_nanosleep(clock, TIMER_ABSTIME, &ts, NULL));
+ Try(clock_gettime(clock, &ns));
+ wait_send(child);
+ /*
+ * Correct expected time. If clock moved back, we will be
+ * late by (back - req.) if forward, we should be on time.
+ */
+ if ( i > 0){
+ ts.tv_sec += i;
+ rs.tv_nsec -= CHILD_DELAY;
+ timersubtract(&ts,&ts,&rs);
+ }
+
+ roundtores(&ts,1000); // expected wake up time
+ diff = timerdiff(&ns, &ts);
+ if ( diff > EPS || diff < 0){
+ char *ls = long_short(diff);
+ myerror("slept too");
+ fprintf(stderr, SETCOLOR_FAILURE
+ "%s!\n requested:\t%lds %ldns\n"
+ " now:\t\t%lds %ldns\n"
+ " diff is %12.9fsec\n" SETCOLOR_NORMAL, ls,
+ ts.tv_sec, ts.tv_nsec,
+ ns.tv_sec, ns.tv_nsec, diff);
+ fprintf(stderr, SETCOLOR_FAILURE
+ "Note this may indicate that nano_sleep \n"
+ "did NOT respond to the clock setting\n"
+ SETCOLOR_NORMAL);
+
+ }
+ waitpid(child, &exv, 0);
+ }
+
+ return 0;
+}
+#define EPS 30000000 /* max error in ns */
+#define EPS_HR 3500000 /* max error in ns */
+int main(int argc, char *argv[])
+{
+ struct sigaction sa;
+// sigset_t set;
+
+ sa.sa_flags = SA_SIGINFO;
+ sa.sa_sigaction = handler1;
+ Try(sigaction(SIGNAL1, &sa, NULL));
+ sa.sa_sigaction = handler2;
+ Try(sigaction(SIGNAL2, &sa, NULL));
+
+ fprintf(stderr,"\nTesting clock_nanosleep(CLOCK_REALTIME...\n");
+ test(CLOCK_REALTIME,EPS);
+ fprintf(stderr,"\nTesting clock_nanosleep(CLOCK_REALTIME_HR...\n");
+ test(CLOCK_REALTIME_HR,EPS_HR);
+ fprintf(stderr,"\nTesting clock_nanosleep(CLOCK_MONOTONIC...\n");
+ test(CLOCK_MONOTONIC,EPS);
+ fprintf(stderr,"\nTesting clock_nanosleep(CLOCK_MONOTONIC_HR...\n");
+ test(CLOCK_MONOTONIC_HR,EPS_HR);
+ by_now();
+ }
Binary files linux-2.5.36-kb/Documentation/high-res-timers/tests/clock_settimetest and linux/Documentation/high-res-timers/tests/clock_settimetest differ
diff -urP -I \$Id:.*Exp \$ -X /usr/src/patch.exclude linux-2.5.36-kb/Documentation/high-res-timers/tests/clock_settimetest.c linux/Documentation/high-res-timers/tests/clock_settimetest.c
--- linux-2.5.36-kb/Documentation/high-res-timers/tests/clock_settimetest.c Wed Dec 31 16:00:00 1969
+++ linux/Documentation/high-res-timers/tests/clock_settimetest.c Fri Sep 27 11:00:44 2002
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 1997 by the University of Kansas Center for Research,
+ * Inc. This software was developed by the Information and
+ * Telecommunication Technology Center (ITTC) at the University of
+ * Kansas. Partial funding for this project was provided by Sprint. This
+ * software may be used and distributed according to the terms of the GNU
+ * Public License, incorporated herein by reference. Neither ITTC nor
+ * Sprint accept any liability whatsoever for this product.
+ *
+ * This project was developed under the direction of Dr. Douglas Niehaus.
+ *
+ * Authors: Shyam Pather, Balaji Srinivasan
+ *
+ * Please send bug-reports/suggestions/comments to posix@ittc.ukans.edu
+ *
+ * Further details about this project can be obtained at
+ * http://hegel.ittc.ukans.edu/projects/posix/
+ */
+
+/* clock_gettimetest.c
+ *
+ * This program simply calls clock_gettime() in a loop. Time values
+ * displayed should be monotonically increasing.
+ */
+
+#include <stdio.h>
+#include <time.h>
+#ifdef __linux__
+#include <posix_time.h>
+#endif
+#include "utils.h"
+
+
+int main() {
+ struct timespec ts;
+
+ try(0,clock_gettime(CLOCK_REALTIME, &ts));
+
+ printf("clock_gettime(CLOCK_REALTIME) tv_sec == %ld, tv_nsec == %ld\n",
+ ts.tv_sec, ts.tv_nsec);
+
+ try(0,clock_settime(CLOCK_REALTIME, &ts));
+
+ try(0,clock_gettime(CLOCK_REALTIME, &ts));
+
+ printf("clock_gettime(CLOCK_REALTIME) tv_sec == %ld, tv_nsec == %ld\n",
+ ts.tv_sec, ts.tv_nsec);
+
+ try(EINVAL,clock_settime(33, &ts));
+
+ try(EFAULT,clock_settime(CLOCK_REALTIME, NULL));
+
+ try(EFAULT,clock_settime(CLOCK_REALTIME, (struct timespec*)1));
+
+ try(0,clock_gettime(CLOCK_MONOTONIC, &ts));
+
+ printf("clock_gettime(CLOCK_MONOTONIC) tv_sec == %ld, tv_nsec == %ld\n",
+ ts.tv_sec, ts.tv_nsec);
+
+ try(EINVAL,clock_settime(CLOCK_MONOTONIC, &ts));
+
+ try(EINVAL,clock_settime(33, &ts));
+
+ try(EFAULT,clock_settime(CLOCK_MONOTONIC, NULL));
+
+ try(EFAULT,clock_settime(CLOCK_MONOTONIC, (struct timespec*)1));
+
+
+ by_now();
+}
+
+
+
+
diff -urP -I \$Id:.*Exp \$ -X /usr/src/patch.exclude linux-2.5.36-kb/Documentation/high-res-timers/tests/do_test linux/Documentation/high-res-timers/tests/do_test
--- linux-2.5.36-kb/Documentation/high-res-timers/tests/do_test Wed Dec 31 16:00:00 1969
+++ linux/Documentation/high-res-timers/tests/do_test Fri Sep 27 11:01:00 2002
@@ -0,0 +1,42 @@
+#!/bin/bash
+
+TESTS="2timer_test clock_getrestest clock_gettimetest clock_gettimetest2 clock_gettimetest3 clock_gettimetest4 timer_test "
+
+PRIV_TESTS="clock_settimetest clock_nanosleeptest"
+FAIL=""
+ SETCOLOR_SUCCESS="echo -en \\033[1;32m"
+ SETCOLOR_FAILURE="echo -en \\033[1;31m"
+ SETCOLOR_WARNING="echo -en \\033[1;33m"
+ SETCOLOR_NORMAL="echo -en \\033[0;39m"
+do_it () {
+ for t in $1 ; do
+ echo "Running ************************************************************************** $t"
+ if ! ./$t ; then
+ FAIL="$t $FAIL"
+ fi
+ done
+}
+do_it_priv () {
+ for t in $1 ; do
+ echo "Running ************************************************************************** $t"
+ if ! ./$t ; then
+ FAIL="$t $FAIL"
+ fi
+ done
+}
+
+do_it "$TESTS"
+
+do_it_priv "$PRIV_TESTS"
+
+if [ "$FAIL" != "" ] ; then
+ $SETCOLOR_FAILURE
+ echo "The following tests failed:"
+ for f in $FAIL ; do
+ echo $f
+ done
+else
+ $SETCOLOR_WARNING
+ echo "All tests passed!"
+fi
+$SETCOLOR_NORMAL
\ No newline at end of file
Binary files linux-2.5.36-kb/Documentation/high-res-timers/tests/jitter_test and linux/Documentation/high-res-timers/tests/jitter_test differ
diff -urP -I \$Id:.*Exp \$ -X /usr/src/patch.exclude linux-2.5.36-kb/Documentation/high-res-timers/tests/jitter_test.c linux/Documentation/high-res-timers/tests/jitter_test.c
--- linux-2.5.36-kb/Documentation/high-res-timers/tests/jitter_test.c Wed Dec 31 16:00:00 1969
+++ linux/Documentation/high-res-timers/tests/jitter_test.c Fri Sep 27 11:01:16 2002
@@ -0,0 +1,151 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <time.h>
+#include <sched.h>
+#include <sys/time.h>
+#include <sys/mman.h>
+#include <errno.h>
+#include <signal.h>
+#include <assert.h>
+#ifdef __linux__
+#include <posix_time.h>
+#endif
+
+#define NOF_JITTER (1*60*100) /* 1 minute test */
+
+int jitter[NOF_JITTER];
+int ijit;
+struct timeval start;
+
+void alrm_handler(int signo, siginfo_t *info, void *context)
+{
+ struct timeval end;
+ int delta;
+ static int first = 1;
+
+ gettimeofday(&end, NULL);
+
+ delta = (end.tv_sec - start.tv_sec) * 1000000 +
+ (end.tv_usec - start.tv_usec);
+ delta -= 10000;
+ start = end;
+ if (first) { first = 0; return; }
+ jitter[ijit++] = delta;
+}
+
+void print_hist(void)
+{
+#define HISTSIZE 1000
+
+ int hist[1000 + 1];
+ int i;
+
+ printf("jitter[0] = %d\n", jitter[0]);
+ memset(hist, 0, sizeof(hist));
+
+ for (i = 1; i < NOF_JITTER; i++) {
+ if (jitter[i] >= HISTSIZE/2) {
+ printf("sample %d over max hist: %d\n", i, jitter[i]);
+ hist[HISTSIZE]++;
+ }
+ else if (jitter[i] <= -HISTSIZE/2) {
+ printf("sample %d over min hist: %d\n", i, jitter[i]);
+ hist[0]++;
+ }
+ else {
+ hist[jitter[i] + HISTSIZE/2]++;
+ }
+ }
+ for (i = 1; i < HISTSIZE; i++) {
+ if (hist[i]) {
+ printf("%d: %d\n", i-HISTSIZE/2, hist[i]);
+ }
+ }
+ printf("HC-: %d\n", hist[0]);
+ printf("HC+: %d\n", hist[HISTSIZE]);
+}
+
+void print_avg(void)
+{
+ double sum;
+ int i;
+
+ sum = 0;
+ for (i = 1; i < NOF_JITTER; i++) {
+ sum += jitter[i];
+ }
+
+ printf("avg. jitter: %f\n", sum/(NOF_JITTER-1));
+}
+
+int main(void)
+{
+ int retval;
+ timer_t t = 0;
+ struct itimerspec ispec;
+ struct itimerspec ospec;
+ struct sigaction sa;
+ struct sched_param sched;
+
+ retval = mlockall(MCL_CURRENT|MCL_FUTURE);
+ if (retval) {
+ perror("mlockall(MCL_CURRENT|MCL_FUTURE) failed");
+ }
+ assert(retval == 0);
+
+ sched.sched_priority = 2;
+ retval = sched_setscheduler(0, SCHED_FIFO, &sched);
+ if (retval) {
+ perror("sched_setscheduler(SCHED_FIFO)");
+ }
+ assert(retval == 0);
+
+ sa.sa_sigaction = alrm_handler;
+ sa.sa_flags = SA_SIGINFO;
+ sigemptyset(&sa.sa_mask);
+
+ if (sigaction(SIGALRM, &sa, NULL)) {
+ perror("sigaction failed");
+ exit(1);
+ }
+
+ if (sigaction(SIGRTMIN, &sa, NULL)) {
+ perror("sigaction failed");
+ exit(1);
+ }
+
+ retval = timer_create(CLOCK_REALTIME, NULL, &t);
+ if (retval) {
+ perror("timer_create(CLOCK_REALTIME) failed");
+ }
+ assert(retval == 0);
+
+ retval = clock_gettime(CLOCK_REALTIME, &ispec.it_value);
+ if (retval) {
+ perror("clock_gettime(CLOCK_REALTIME) failed");
+ }
+ ispec.it_value.tv_sec += 1;
+ ispec.it_value.tv_nsec = 0;
+ ispec.it_interval.tv_sec = 0;
+ ispec.it_interval.tv_nsec = 10*1000*1000; /* 100 Hz */
+
+ retval = timer_settime(t, TIMER_ABSTIME, &ispec, &ospec);
+ if (retval) {
+ perror("timer_settime(TIMER_ABSTIME) failed");
+ }
+
+ do { pause(); } while (ijit < NOF_JITTER);
+
+ retval = timer_delete(t);
+ if (retval) {
+ perror("timer_delete(existing timer) failed");
+ }
+ assert(retval == 0);
+
+ print_hist();
+
+ print_avg();
+
+ return 0;
+}
Binary files linux-2.5.36-kb/Documentation/high-res-timers/tests/performance and linux/Documentation/high-res-timers/tests/performance differ
diff -urP -I \$Id:.*Exp \$ -X /usr/src/patch.exclude linux-2.5.36-kb/Documentation/high-res-timers/tests/performance.c linux/Documentation/high-res-timers/tests/performance.c
--- linux-2.5.36-kb/Documentation/high-res-timers/tests/performance.c Wed Dec 31 16:00:00 1969
+++ linux/Documentation/high-res-timers/tests/performance.c Fri Sep 27 11:02:01 2002
@@ -0,0 +1,792 @@
+#ifdef comments
+/*
+The performance measurements are:
+
+1.) time to activate a timer with 0 to N timers active in the system
+ (plot time expecting it to have some minor slope) where N is 3000
+ timers.
+
+1a) Do same timer measurement with the timer list set to 512, 1024,
+ 2048, and 4192
+
+2.) Measure the preemption operations with timers expiring at random
+ intervals.
+
+3.) Measure the preemption operations with small numbers of timers to
+ large numbers of timers expiring at the same time.
+
+Lets see. There are two ways of doing this.
+
+1.) We measure the time to activate timer N as we do each timer from 1
+ to N. We do this several times take the average, min, max for each
+ N.
+
+2.) For each N we loop for M times activating and deactivating a timer,
+ again measuring the min, max, average.
+
+3.) (I lied about the number of ways :) We do a combo of the above.
+
+The data we gather here is min, max, average for each of N timers.
+
+So much for test 1. Test 2 requires some method of measuring the actual
+ preemption times. Suppose we create a thread that does the
+ measurement. By using a thread, we can keep track of the number of
+ timers that expire during each period. The thread could, each time
+ period, get the preemtion info from /proc and put the two together
+ in a data structure/file for subsequent display.
+
+Test 3 is a version of Test 2 with out the random expire times.
+
+An additional test might be to do tests 2 & 3 with both high res and low
+ res clocks. For that matter, test 1 should do this also. Should we
+ also consider MONOTONIC as well as REALTIME clocks?
+
+Ok, so, then what are the variables we want to work with and what is the
+ output:
+
+ Test 1,1a
+ Number of timers
+ Number of times to loop thru the N timers
+ Number of times to activate each timer each time thru the loop
+ CLOCK to use
+
+ Produces a file of trupples (min, max, average) for each N.
+
+ Test 2,3
+ Bound of the expire time (i.e. how long will the test run)
+ Number of times to run the above (again keeping min, max, average)
+ Interval over which to measure (e.g. for each 10ms)
+ CLOCK to use
+
+ Produces a file of trupples (min, max, average) for each N expires
+
+
+*/
+#endif
+#include <sys/mman.h>
+#include <string.h>
+#include "../lib/posix_time.h"
+
+#include "utils.h"
+#define FALSE 0
+#define TRUE 1
+static char *VERSION = "1.0.0 <20020927.1657.03>";
+static char *program_name = NULL;
+extern void print_usage(FILE*, int);
+static int verbose = FALSE;
+struct timeval start, stop;
+char * ploting;
+#ifdef debug
+#undef debug
+#define debug(a) do {a}while (0)
+#else
+#define debug(a) do {} while (0)
+#endif
+
+/*
+ * A function to caculate the new running average given the old (av),
+ * the new (new) and the new item count (count).
+ * av and new should be "double", while count will usually be int.
+ */
+#define run_av(av, new, count) (((av *(count - 1)) + new)/count)
+
+/*
+ * Ever notice that you can do #foo to get a string but there is
+ * no way to get a character constant (i.e. 'a') in a macro. You either
+ * have it or you don't :(
+ *
+ * Ok, here is where we define the run time options. This one definition
+ * is used three times, the usage print out, the short options init and
+ * the long options init. The parameters are:
+ * the short options character constant, the same char as is, i.e.
+ * constant, the long version, NIL if no value, PAR if a value should
+ * follow, a user friendly info string for the usage print out.
+ */
+#define OPTIONS \
+OPTION_H('h',h, help, NIL, Display this usage information (try -vh).\n) \
+OPTION_H('v',v, verbose, NIL, print verbose data.\n) \
+OPTION_H('n',n, timers, PAR, Number of timers to work with (3000).\n) \
+OPTION_H('l',l, loop, PAR, Number of times to loop over all timers (5).\n) \
+OPTION_H('i',i, iterate, PAR, Number of times to do each timer (5).\n) \
+OPTION_H('r',r, range, PAR, Range of timer values in milliseconds (no. tmrs *20ms).\n) \
+OPTION_H('m',m, tim-min, PAR, Minimum timer value to use in milliseconds (10,000).\n) \
+OPTION_H('a',a, abs, NIL, Use absolute timers.\n) \
+OPTION_H('c',c, clear, NIL, Timers will be seperately cleared prio to arming.\n) \
+OPTION_H('P',P, priority, PAR, Use priority X on the test (50).\n) \
+OPTION_H('F',F, fifo, NIL, Use SCHED_FIFO algorithm.\n) \
+OPTION_H('R',R, rr, NIL, Use SCHED_RR algorithm (default = SCHED_FIFO).\n) \
+OPTION_H('L',L, low, NIL, Use low resolution clock (high res).\n) \
+OPTION_H('M',M, mono, NIL, Use CLOCK_MONOTONIC (CLOCK_REALTIME).\n) \
+OPTION_H('g',g, gnu_plot, NIL, Produce gnu_plot file on stdout.\n) \
+OPTION_H('t',t, test2, NIL, Do test 2 (see -vh).\n) \
+OPTION_H('V',V, version, NIL, Print version of this program.\n) \
+
+char *verbose_help =
+ "\n"
+ "Test 1 (use -t to get test 2, for which see comments below)\n\n"
+ "This program collects data on timer arm time against number of active\n"
+ "timers. It also keeps track of timer completions while it is\n"
+ "measuring the arming times. It provides its output in a form\n"
+ "compatible with gnuplot. Several runs through the timers are made with\n"
+ "each run doing several timer arms. The minimum, maximum and average\n"
+ "times are kept for each timer count. The data file contains space\n"
+ "delimited data in the following order: count, average, min, max,\n"
+ "completions. The completions column is the number of timer\n"
+ "completions while measuring the arm times for that timer. This\n"
+ "column is absent if the count is zero. All times are in microseconds.\n"
+ "A suggest gnuplot directive is:\n"
+ "'plot <file> w lines, plot <file> using 1:5'.\n"
+ "This will put the timer completions on the plot as points only when\n"
+ "there are some. You could also use:\n"
+ "'plot <file> w error, plot <file> using 1:5'.\n"
+ "to plot each value as an error bar.\n"
+ "\n"
+ "Comments on the parameters: Each of the <timers> is armed <iterate>\n"
+ "times on each of <loop> loops, thus there are <iterate> * <loop>\n"
+ "times. \n"
+ "\n"
+ "The timer must be disarmed between each of the <loop> passes, but\n"
+ "may be left armed for the <iterate> loop. You can control this with\n"
+ "the <clear> parameter. \n"
+ "\n"
+ "The time to use for each timer is generated using a random number\n"
+ "generator constrained to give times from <tim-min> to <tim-min> +\n"
+ "<range>. The default value of <tim-min> precludes timers from\n"
+ "completing during the test, however, this need not be the case. \n"
+ "\n"
+ "By constraining <range> you can defeat the timer hash, causing all\n"
+ "timers to be inserted in the same hash bucket. (Hash buckets are\n"
+ "1/HZ seconds in size.) Since the test take well over 1/HZ seconds,\n"
+ "you will need to use the <abs> option to actually force all timers\n"
+ "to the same bucket. Without the <abs> option you should notice a\n"
+ "sawtooth graph with each 1/HZ (in test time, which is not kept)\n"
+ "representing a tooth, due to the relative alarm times.\n"
+ "\n"
+ "It is recommended that this test be run as a real time task to avoid\n"
+ "its being preempted by other system activity. See <priority>,\n"
+ "<fifo> and <rr>. If none of these are given, the task will inherit\n"
+ "its parents scheduling attributes.\n"
+ "\n"
+ "You can also choose the POSIX clock and resolution. Default is\n"
+ "CLOCK_REALTIME_HR. <low> change removes the '_HR' and <mono>\n"
+ "changes 'REALTIME' to 'MONOTONIC'.\n\n"
+ "The -g option will cause gnuplot commands to be emitted in front of \n"
+ "the data such that the output can be piped to gnuplot. Without the \n"
+ "-g these commands will be replaced with comments such that you can \n"
+ "enter your own commands to gnuplot and \"plot\" the output.\n\n"
+ "Test 2 is a generates a plot of preemption time against number of timers\n"
+ "completing on the same tick. The preemption time is gathered from\n"
+ "the preemption \"stats\" patch. This test is slow as it needs to wait\n"
+ "for the timers to complete. For this test N timers are armed in ABSOLUTE\n"
+ "mode for N running from 0 to <-n> timers. The run will be done <-l> \n"
+ "times and the results averaged to give the same format as the test 1\n"
+ "file except for the completion info. For this test the \n"
+ "-i, -r, -a, -c, and -m options are meaningless.\n"
+
+;
+
+#define OPTION_U USAGE
+#include "utils.h"
+void print_usage(FILE* stream, int exit_code)
+{
+ fprintf (stream,"%s version %s\n", program_name, VERSION);
+ if(verbose){
+ fprintf(stream,"%s",verbose_help);
+ }
+ fprintf (stream, "Usage: %s options\n", program_name);
+ fprintf (stream, OPTIONS);
+ exit (exit_code);
+}
+
+
+int clock_index = 0;
+#define MONOTONIC 2
+#define LOW_RES 1
+/*
+ * We know about the following clocks:
+ */
+clock_t clocks[] = {CLOCK_REALTIME_HR,
+ CLOCK_REALTIME,
+ CLOCK_MONOTONIC_HR,
+ CLOCK_MONOTONIC};
+/*
+ * Which have these names:
+ */
+char * clock_names[] = {"CLOCK_REALTIME_HR",
+ "CLOCK_REALTIME",
+ "CLOCK_MONOTONIC_HR",
+ "CLOCK_MONOTONIC"};
+int no_timers = 3000;
+int main_loop = 5;
+int iterate_loop = 5;
+int clear_flag = 0;
+int high_bound = 0;
+int mypriority = 0;
+int expirations = 0;
+int line = 90; // take down by 5 for each line in the graph
+#define new_line() line -= 5
+int test1 = TRUE;
+int expire = 0;
+int gnu_plot = 0;
+int sched_policy = SCHED_OTHER;
+double timer_range = 0.0;
+double min_timer = 10000.0;
+int absf = 0;
+#define SIGNAL1 SIGRTMIN //SIGUNUSED
+struct timespec tm, ts, rs, tb ;
+struct itimerspec tt ;
+struct itimerspec * rtime(struct itimerspec * t)
+{
+ double tim = (((double)random() * timer_range) /RAND_MAX) + min_timer;
+
+ t->it_value.tv_sec =tim;
+ t->it_value.tv_nsec = ((tim - t->it_value.tv_sec) * NSEC_PER_SEC);
+ if( absf ) timersum(&t->it_value,&t->it_value,&tb);
+ return t;
+}
+
+#define IF_V(a) do {if( verbose ) { a };}while(0)
+#define start() expirations = 0;Try(clock_gettime(clocke, &ts))
+#define elapsed() ({Try(clock_gettime(clocke, &rs));\
+ expire = expirations; \
+ timerdiff(&rs,&ts);\
+ })
+#define for_each(a) for (t = 0; t < no_timers; t++){a;}
+#define for_main(a) for (o = 0; o < main_loop; o++){ a; }
+#define for_iter(a) for (i = 0; i < iterate_loop; i++){ a; }
+#define for_all(a) for_main( for_each (for_iter( a) ))
+
+#define timerx() timer[t].result[o].in_loop[i]
+
+void timer1_handler(int signo, siginfo_t * info, void * ptr)
+{
+ IF_V(printf("In handler\n"););
+ expirations++;
+}
+
+
+void do_test1(void)
+{
+ struct {
+ struct result {
+ double in_loop[iterate_loop];
+ } result[main_loop];
+ } timer[no_timers];
+ timer_t timer_id[no_timers];
+ int expires[no_timers];
+ int i,o,t;
+ clock_t clockt = clocks[clock_index];
+ clock_t clocke = CLOCK_MONOTONIC;
+ struct sigevent sigev;
+ sigset_t new_mask,old_mask;
+ struct sigaction oldact,sigact;
+ struct itimerspec tc = {{0,0},{0,0}};
+
+ /*
+ * For this test we don't want any signals, so
+ * just ignor them.
+ */
+ sigact.sa_sigaction = timer1_handler;
+ sigact.sa_flags = SA_SIGINFO;
+ Try(sigemptyset(&sigact.sa_mask));
+
+ sigaddset(&new_mask, SIGNAL1);
+ Try(sigprocmask(SIG_UNBLOCK, &new_mask, &old_mask));
+ /*
+ * Set up a random number generator
+ */
+ start();
+ srandom(ts.tv_sec);
+ Try(clock_gettime(clockt, &tb));
+
+ Try(sigaction(SIGNAL1,&sigact,&oldact));
+ sigev.sigev_notify = SIGEV_SIGNAL;
+ sigev.sigev_signo = SIGNAL1;
+ start();
+ for_all( timerx() = 0.0);
+ IF_V(printf(" Result array (%d bytes) cleared in %12.9f sec \n",
+ main_loop*iterate_loop*no_timers*(sizeof(double)),
+ elapsed()););
+
+ for_each (
+ Try(timer_create(clockt, &sigev, &timer_id[t]));
+ expires[t] = 0;
+ );
+ for_main(
+ for_each(
+ for_iter(
+ if( clear_flag ){
+ Try(timer_settime(timer_id[t],
+ 0, &tc, NULL));
+ }
+ start();
+ Try(timer_settime(timer_id[t],
+ absf, rtime(&tt), NULL));
+ timerx() = elapsed();
+ expires[t] = expire;
+ );
+ );
+ for_each(
+ Try(timer_settime(timer_id[t], 0, &tc, NULL));
+ );
+ );
+
+ /*
+ * Ok, the test is done, clean up the mess and push out the
+ * data.
+ */
+ for_each (Try(timer_delete(timer_id[t])););
+ /*
+ * don't forget to restore the signal system
+ */
+ Try(sigaction(SIGNAL1,&oldact,NULL));
+ /*
+ * Here is where we write out the data. All
+ * the numbers are floating point.
+ */
+ printf("%splot \"-\" w lines \n", gnu_plot ? "" : "#");
+
+
+ for_each(
+ double high = 0.0;
+ double low = 1000;
+ double sum = 0.0;
+ double scale = 1000000; // values in micro seconds
+ int ppt = iterate_loop + main_loop;
+ for_main(
+ for_iter(
+ double v = timerx();
+
+ sum += v;
+ if( v > high) high = v;
+ if( v < low) low = v;
+ );
+ );
+ if(expires[t]) {
+ printf( "%d %12.9f %12.9f %12.9f %d\n",
+ t,
+ sum * scale/ ppt,
+ low * scale,
+ high * scale,
+ expires[t]);
+ }else{
+ printf( "%d %12.9f %12.9f %12.9f\n",
+ t,
+ sum * scale/ ppt,
+ low * scale,
+ high * scale);
+ }
+ );
+
+ return;
+}
+
+/*
+ * Test 2 is to generate data for a graph of preemption time against
+ * timer completions. We set up N timers to complete at the same
+ * time and then wait for that time. We then read the preemption
+ * stats in /proc and see how big a hit we took. For this test we
+ * will not allow much in the way of control as a timer competion
+ * is a timer completion. We will try and fine tune the set up time
+ * to allow us to get all the timers armed prior to the expire time.
+ * This will take longer as N gets larger. We will test what this
+ * is for N=max and assume it is linear in N (if it is not we will be
+ * erroring on the right side). We will do the whole test M times
+ * and produce a gnu_plot error file (i.e. N ave min max).
+ */
+#undef timerx
+#undef for_all
+//#define for_each(a) for (t = 0; t < no_timers; t++){a;}
+//#define for_main(a) for (o = 0; o < main_loop; o++){ a; }
+#define for_all(a) for_main( for_each( a ))
+#define for_timers(a) for (l = 0; l <= t; l++){a;}
+
+#define timerx() timer[t].result[o]
+#define wait_t() timer[t].wait_time[o]
+
+struct itimerspec * etime(struct itimerspec * t, double tim)
+{
+ t->it_value.tv_sec =tim;
+ t->it_value.tv_nsec = ((tim - t->it_value.tv_sec) * NSEC_PER_SEC);
+ roundtores(&t->it_value,10000000);
+ timersum(&t->it_value,&t->it_value,&ts);
+ return t;
+}
+#define wait_for_expire(new_mask) sigwaitinfo(&new_mask, &info);
+
+#define FILEN "/proc/latencytimes"
+#define BUF_SIZE 4048
+
+long get_proc_latency(int count)
+{
+ char buff[BUF_SIZE];
+ int rd;
+ long n, rtn;
+ char * loc, * end;
+ int fd = Try(open(FILEN, O_RDONLY));
+
+ rd = Try(read(fd, &buff[0], BUF_SIZE));
+ if (rd >= BUF_SIZE){
+ printf("%s buffer size too small (%d)\n", FILEN, BUF_SIZE);
+ }
+ n = Try(read(fd, &n, sizeof(n)));
+ if ( n ) {
+ printf("Failed to find expected EOF on %s\n", FILEN);
+ }
+ close(fd);
+ buff[rd] = 0;
+ /*
+ * This is a dirty little bit of code to get the worst case
+ * latency from the above buffer. It will be the number just
+ * after the string "end line/file". There will be a new line
+ * here AND, if SMP there may be more than one of them. Find
+ * them all and return the biggest. Units will be microseconds.
+ */
+
+ rtn = 0;
+ end = buff + rd;
+ loc = buff;
+ while (loc < end){
+ char mstring[] = "end line/file";
+ loc = strstr(loc, mstring);
+ if( ! loc )
+ break;
+ loc += sizeof(mstring);
+ n = strtol(loc, &loc, 10);
+ if ( n > rtn) rtn = n;
+ }
+ if( count > 100 && count > rtn + rtn) {
+ printf("Found %d with count %d from:\n%s", (int)rtn, count, buff);
+ }
+ return rtn;
+
+}
+
+void do_test2(void)
+{
+ struct result {
+ double result[main_loop];
+ double wait_time[main_loop];
+ } timer[no_timers];
+ timer_t timer_id[no_timers];
+// int expires[no_timers];
+ int l,o,t;
+ clock_t clockt = clocks[clock_index];
+ clock_t clocke = CLOCK_MONOTONIC;
+ double max_setup_time, setup_per;
+ struct sigevent sigev;
+ //sigset_t new_mask,old_mask;
+ struct sigaction oldact,sigact;
+ struct itimerspec tc = {{0,0},{0,0}};
+ struct itimerspec rm;
+ struct timespec tm = {0,20000000}, tz = {0,0};
+ WAIT_VARS();
+
+ /*
+ * For this test we will do a sig wait so first block them.
+ */
+ sigact.sa_sigaction = timer1_handler;
+ sigact.sa_flags = SA_SIGINFO;
+
+ Try(clock_gettime(clockt, &tb));
+
+ Try(sigaction(SIGNAL1,&sigact,&oldact));
+ wait_setup( SIGNAL1);
+ sigev.sigev_notify = SIGEV_SIGNAL;
+ sigev.sigev_signo = SIGNAL1;
+ start();
+ for_all( timerx() = 0.0);
+ IF_V(printf(" Result array (%d bytes) cleared in %12.9f sec \n",
+ main_loop*iterate_loop*no_timers*(sizeof(double)),
+ elapsed()););
+
+ for_each (
+ Try(timer_create(clocke, &sigev, &timer_id[t]));
+// expires[t] = 0;
+ );
+ start();
+ for_each(
+
+ Try(timer_settime(timer_id[t], TIMER_ABSTIME, etime(&tt,60.0),
+ NULL));
+ );
+ max_setup_time = elapsed();
+ setup_per = max_setup_time / no_timers;
+ IF_V(
+ printf("# Set up time for %d timers %12.9f seconds or \n"
+ "%12.9f seconds per timer.\n",
+ no_timers, max_setup_time, max_setup_time / no_timers););
+ //setup_per *= 2.0; // use double to be safe
+
+ // clear all the timers
+ for_each(
+ Try(timer_settime(timer_id[t], 0, &tc, NULL));
+ );
+ start();
+ get_proc_latency(0); // Clear the latency counters
+ IF_V(
+ printf("Get latency takes %12.9f seconds.\n",elapsed());
+ );
+
+ for_main(
+ for_each(
+ start();
+ get_proc_latency(0); // Clear the latency counters
+ etime(&tt, (setup_per * t) + 0.01);
+
+ for_timers(
+ Try(timer_settime(
+ timer_id[l], TIMER_ABSTIME,
+ &tt,
+ NULL));
+ );
+ IF_V( {
+ struct itimerspec tl;
+ Try(timer_gettime(timer_id[0],&tl));
+ if(timerdiff(&tl.it_value,&tc.it_value) == 0.0){
+ printf("Timers already expired!"
+ " Consider runing at "
+ "higher priority.\n" );
+ }
+ printf(".");fflush(stdout);
+ });
+ //get_proc_latency(); // Clear the latency counters
+ wait_sync(); // wait for first signal
+ clock_nanosleep(clocke, 0, &tm, NULL);
+ for_timers( // clear the timers
+ Try(timer_settime(timer_id[l], TIMER_ABSTIME,
+ &tc,
+ &rm));
+ if (rm.it_value.tv_sec + rm.it_value.tv_nsec){
+ printf("Oops! Time remains on "
+ "%d %12.9f secs\n",
+ l, timerdiff(&rm.it_value, &tz));
+ }
+ );
+ timerx() = get_proc_latency(t);
+ wait_flush(); // flush any left over signals
+ );
+ );
+ /*
+ * Ok, the test is done, clean up the mess and push out the
+ * data.
+ */
+ for_each (Try(timer_delete(timer_id[t])););
+ /*
+ * Here is where we write out the data. All
+ * the numbers are floating point.
+ */
+ printf("%splot \"-\" w lines \n", gnu_plot ? "" : "#");
+ for_each(
+ double high = 0.0;
+ double low = 1000;
+ double sum = 0.0;
+ double scale = 1.0;
+ double ppt = main_loop;
+ for_main(
+ double v = timerx();
+ sum += v;
+ if( v > high) high = v;
+ if( v < low) low = v;
+ /* wsum += w;
+ if( w > whigh) whigh = w;
+ if( w < wlow) wlow = w; */
+ );/*%12.9f %12.9f %12.9f*/
+ printf( "%d %12.9f %12.9f %12.9f \n",
+ t,
+ sum * scale/ ppt,
+ low * scale,
+ high * scale
+ );
+ );
+
+ return;
+
+
+
+}
+
+
+#define OPTION_U LONG
+#include "utils.h"
+int main(int argc, char *argv[])
+{
+ int next_option;
+ pid_t mypid = getpid();
+ struct sched_param sched_pr;
+ //const char* const short_options = "m:hfvrnpP:b:V";
+ const struct option long_options[] = {
+ OPTIONS
+ { NULL, 0, NULL, 0 } /* Required at end of array. */
+ };
+#define OPTION_U SHORT
+#include "utils.h"
+ const char* const short_options = OPTIONS;
+ program_name = argv[0];
+
+ do {
+ next_option = getopt_long(argc, argv, short_options,
+ long_options, NULL);
+ switch (next_option) {
+ case 'h':
+ print_usage (stdout, 0);
+ case 'v':
+ verbose = TRUE;
+ break;
+ case 'n':
+ no_timers = atol(optarg);
+ break;
+ case 'l':
+ main_loop = atol(optarg);
+ break;
+ case 'i':
+ iterate_loop = atol(optarg);
+ break;
+ case 'r':
+ high_bound = atol(optarg);
+ break;
+ case 'm':
+ min_timer = atol(optarg);
+ break;
+ case 'a':
+ absf = TIMER_ABSTIME;
+ break;
+ case 'c':
+ clear_flag = TRUE;
+ break;
+ case 'P':
+ mypriority = atoi(optarg);
+ break;
+ case 'F':
+ sched_policy = SCHED_FIFO;
+ break;
+ case 'R':
+ sched_policy = SCHED_RR;
+ break;
+ case 'L':
+ clock_index |= LOW_RES;
+ break;
+ case 'M':
+ clock_index |= MONOTONIC;
+ break;
+ case 'g':
+ gnu_plot = TRUE;
+ break;
+ case 't':
+ test1 = FALSE;
+ break;
+ case 'V':
+ printf("%s version %s\n", program_name, VERSION);
+ exit(0);
+
+ case -1: /* Done with options. */
+ break;
+
+ default: /* Something else: unexpected. */
+ print_usage(stderr, 1);
+ exit(-1);
+ }
+ }
+ while (next_option != -1);
+ /*
+ ** Lock all memory pages associated with this process to prevent
+ ** delays due to process memory being swapped out to disk and back.
+ */
+ mlockall( (MCL_CURRENT | MCL_FUTURE) );
+ /*
+ * Run as SCHED_FIFO (real time) priority 99, since I don't
+ * trust the user to remember. Decidely unfriendly. Changed
+ * to default to inherit. Reports what is in all cases.
+ */
+ if( sched_policy != SCHED_OTHER) {
+ if (!mypriority) mypriority = 50;
+ }else{
+ if (mypriority) sched_policy = SCHED_FIFO;
+ }
+ sched_pr.sched_priority = mypriority;
+ if(mypriority){
+ Try (sched_setscheduler(mypid, sched_policy, &sched_pr));
+ }
+ Try (sched_getparam(mypid, &sched_pr));
+ sched_policy = Try(sched_getscheduler(0));
+
+ Try (gettimeofday(&start, 0));
+ ploting = gnu_plot ? "set label " : "#",
+
+ printf("%s"
+ "\"Calculations done at priority %d "
+ "using %s scheduleing policy.\" at graph 0.1,0.%d\n",
+ ploting,
+ sched_pr.sched_priority,
+ sched_policy == SCHED_OTHER ? "SCHED_OTHER" :
+ sched_policy == SCHED_FIFO ? "SCHED_FIFO" :
+ sched_policy == SCHED_RR ? "SCHED_RR" : "UNKNOWN",
+ line
+ );
+ new_line();
+ printf("%s\"Using %d timers on clock %s\"at graph 0.1,0.%d\n",
+ ploting,
+ no_timers,clock_names[clock_index],
+ line
+ );
+ new_line();
+ printf("%sset ylabel \"Microseconds\"\n",
+ gnu_plot ? "" :"#");
+ printf("%sset xlabel \"Number of timers\"\n",
+ gnu_plot ? "" :"#");
+ if( test1 ){
+ printf("%s\"Time to arm vs. number of armed "
+ "timers\" at graph 0.5, .975 center\n", ploting);
+ printf("%s\"Outer loop is %d and inner loop %d.\"at "
+ "graph 0.1,0.%d\n",
+ ploting,
+ main_loop,iterate_loop,
+ line
+ );
+ new_line();
+ if ( high_bound ){
+ timer_range = (double)high_bound / 1000;
+ }else{
+ timer_range = .02 * no_timers;
+ }
+ tm.tv_sec = timer_range;
+ tm.tv_nsec = (timer_range - tm.tv_sec) * NSEC_PER_SEC;
+ min_timer /= 1000;
+ printf("%s\"Maximum timer range is from %12.9f "
+ "to %12.9f seconds.\" at graph 0.1,0.%d\n",
+ ploting,
+ min_timer,
+ min_timer + timer_range,
+ line
+ );
+ new_line();
+ }else{
+ printf("%s\"Schedule latency vs. number of "
+ "completing timers\" at graph 0.5, .975 center\n",
+ ploting);
+ printf("%s\"Average of %d completions.\"at "
+ "graph 0.1,0.%d\n",
+ ploting,
+ main_loop,
+ line
+ );
+ new_line();
+ }
+ /*
+ * Ok, we have all the info from the user and are now ready to
+ * start the tests. We put the tests in a function so that the
+ * data array can be dynamicaly allocated. Since we have it
+ * locked, it is possible to fail here with a SIGSEGV.
+
+ */
+ if ( test1 ){
+ do_test1();
+ } else{
+
+ do_test2();
+ }
+
+
+ exit(0);
+ return 0;
+}
Binary files linux-2.5.36-kb/Documentation/high-res-timers/tests/timer_test and linux/Documentation/high-res-timers/tests/timer_test differ
diff -urP -I \$Id:.*Exp \$ -X /usr/src/patch.exclude linux-2.5.36-kb/Documentation/high-res-timers/tests/timer_test.c linux/Documentation/high-res-timers/tests/timer_test.c
--- linux-2.5.36-kb/Documentation/high-res-timers/tests/timer_test.c Wed Dec 31 16:00:00 1969
+++ linux/Documentation/high-res-timers/tests/timer_test.c Fri Sep 27 11:02:17 2002
@@ -0,0 +1,600 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <time.h>
+#include <errno.h>
+#include <signal.h>
+// #include <assert.h>
+#include <sys/utsname.h>
+#ifdef __linux__
+#include <posix_time.h>
+#endif
+#include "utils.h"
+
+#if 0
+#include <linux/unistd.h>
+#include <sys/time.h>
+/* This will expand into the timer_create system call stub. */
+_syscall3(int, timer_create,
+ clockid_t, which_clock,
+ struct sigevent *, timer_event_spec,
+ timer_t *, created_timer_id)
+
+/* This will expand into the timer_gettime system call stub. */
+_syscall2(int, timer_gettime,
+ timer_t, timer_id,
+ struct itimerspec *, setting)
+
+/* This will expand into the timer_settime system call stub. */
+_syscall4(int, timer_settime,
+ timer_t, timer_id,
+ int, flags,
+ const struct itimerspec *, new_setting,
+ struct itimerspec *, old_setting)
+
+/* This will expand into the timer_gettime system call stub. */
+_syscall1(int, timer_getoverrun,
+ timer_t, timer_id)
+
+/* This will expand into the timer_delete system call stub. */
+_syscall1(int, timer_delete,
+ timer_t, timer_id)
+
+int clock_gettime(clockid_t which_clock, struct timespec *ts)
+{
+ struct timeval tv;
+
+ if (which_clock != CLOCK_REALTIME) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ if (gettimeofday(&tv, NULL) < 0) return -1;
+ ts->tv_sec = tv.tv_sec;
+ ts->tv_nsec = tv.tv_usec * 1000;
+
+ return 0;
+}
+#endif
+
+#define MAX_NOF_TIMERS 6000
+
+int timer_id_in_sival_int = 0;
+
+struct timespec ref;
+
+static void reset_ref_time(void)
+{
+ clock_gettime(CLOCK_REALTIME, &ref);
+}
+
+static void print_rel_time(void)
+{
+ struct timespec now;
+ clock_gettime(CLOCK_REALTIME, &now);
+ now.tv_sec -= ref.tv_sec;
+ now.tv_nsec -= ref.tv_nsec;
+ if (now.tv_nsec < 0) {
+ now.tv_sec--;
+ now.tv_nsec += 1000000000;
+ }
+ printf("%ld.%09ld", now.tv_sec, now.tv_nsec);
+}
+
+int sival_expected;
+
+static void print_siginfo(int signo, siginfo_t *info)
+{
+ int overrun;
+
+ print_rel_time();
+ printf(": siginfo dump: ");
+ printf("si_signo: %d [%d], ", info->si_signo, signo);
+ printf("si_errno: %d, ", info->si_errno);
+ printf("si_value: int=%d ptr=%p ",
+ info->si_value.sival_int, info->si_value.sival_ptr);
+ if (sival_expected != -1) {
+ assert(info->si_value.sival_int == sival_expected);
+ }
+ switch (info->si_code) {
+ case SI_USER:
+ printf("si_code: SI_USER");
+ printf(", si_pid: %d", info->si_pid);
+ printf(", si_uid: %d\n", info->si_uid);
+ break;
+ case SI_QUEUE:
+ printf("si_code: SI_QUEUE");
+ printf(", si_pid: %d", info->si_pid);
+ printf(", si_uid: %d\n", info->si_uid);
+ break;
+ case SI_ASYNCIO:
+ printf("si_code: SI_ASYNCIO\n");
+ break;
+ case SI_TIMER:
+#if 0
+ t = (timer_id_in_sival_int) ? info->si_value.sival_int : *(timer_t*)info->si_value.sival_ptr;
+#endif
+ printf("si_code: SI_TIMER");
+#ifdef __linux__
+ printf(", timer id: %d", info->si_tid);
+#endif
+ overrun = timer_getoverrun(info->si_tid);
+ switch (overrun) {
+ case -1:
+ printf(", timer_getoverrun() failed: %s\n", strerror(errno));
+ break;
+ case 0:
+ printf("\n");
+ break;
+ default:
+ printf(", overrun: %d\n", overrun);
+ break;
+ }
+ break;
+ case SI_MESGQ:
+ printf("si_code: SI_MESGQ\n");
+ break;
+ default:
+ printf("si_code: %d\n", info->si_code);
+ break;
+ }
+}
+
+void alrm_handler(int signo, siginfo_t *info, void *context)
+{
+ print_siginfo(signo, info);
+}
+
+int main(void)
+{
+ int retval;
+ int signo;
+ timer_t t = 0;
+ int i,j;
+ timer_t tt[MAX_NOF_TIMERS];
+ struct itimerspec ispec;
+ struct itimerspec ospec;
+ struct sigevent timer_event_spec;
+ struct sigaction sa;
+ union sigval val;
+ sigset_t set;
+ siginfo_t info;
+ struct utsname utsname;
+
+ sigemptyset(&set);
+ sigprocmask(SIG_SETMASK, &set, NULL);
+
+ sa.sa_sigaction = alrm_handler;
+ sa.sa_flags = SA_SIGINFO;
+ sigemptyset(&sa.sa_mask);
+
+ if (sigaction(SIGALRM, &sa, NULL)) {
+ perror("sigaction failed");
+ exit(1);
+ }
+
+ if (sigaction(SIGRTMIN, &sa, NULL)) {
+ perror("sigaction failed");
+ exit(1);
+ }
+
+ if (sigaction(SIGRTMIN + 1, &sa, NULL)) {
+ perror("sigaction failed");
+ exit(1);
+ }
+
+ printf("\ntest 1: delete non existing timer: expect failure\n");
+ retval = timer_delete(t);
+ if (retval) {
+ perror("timer_delete(bogus timer) failed");
+ }
+ assert(retval == -1);
+
+ printf("\ntest 2: create default timer\n");
+ retval = timer_create(CLOCK_REALTIME, NULL, &t);
+ if (retval) {
+ perror("timer_create(CLOCK_REALTIME) failed");
+ }
+ assert(retval == 0);
+
+ printf("\ntest 3: delete timer\n");
+ retval = timer_delete(t);
+ if (retval) {
+ perror("timer_delete(existing timer) failed");
+ }
+ assert(retval == 0);
+
+ printf("\ntest 4: delete timer again: expect failure\n");
+ retval = timer_delete(t);
+ if (retval) {
+ perror("timer_delete(deleted timer) failed");
+ }
+ assert(retval == -1);
+
+ printf("\ntest 5: delete non-existing timer: expect failure\n");
+ retval = timer_delete(-1);
+ if (retval) {
+ perror("timer_delete(-1) failed");
+ }
+ assert(retval == -1);
+
+ printf("\ntest 6: delete non-existing timer: expect failure\n");
+ retval = timer_delete(100);
+ if (retval) {
+ perror("timer_delete(100) failed");
+ }
+ assert(retval == -1);
+
+ printf("\ntest 7: attempt to create too many timers: expect failure at timer %d\n", MAX_NOF_TIMERS);
+ for (i = 0; i < MAX_NOF_TIMERS; i++) {
+ retval = timer_create(CLOCK_REALTIME, NULL, &tt[i]);
+ if (retval) {
+ fprintf(stderr, "timer_create(CLOCK_REALTIME) %d failed: %s\n", i, strerror(errno));
+ break;
+ }
+ }
+ if ( i < MAX_NOF_TIMERS) {
+ assert((i > 30) && (retval == -1));
+ j = i;
+ }else {
+ assert( (i == MAX_NOF_TIMERS) && (retval != -1));
+ fprintf(stderr, "timer_create(CLOCK_REALTIME) %d timers created\n",i);
+ j = i ;
+ }
+
+ printf("\ntest 8: delete these timers: expect failure at timer %d\n", j);
+ for (i = 0; i <= j; i++) {
+ retval = timer_delete(tt[i]);
+ if (retval) {
+ fprintf(stderr, "timer_delete(CLOCK_REALTIME) %d failed: %s\n", i, strerror(errno));
+ break;
+ }
+ }
+ assert((i == j) && (retval == -1));
+
+ printf("\ntest 9: create default timer\n");
+ retval = timer_create(CLOCK_REALTIME, NULL, &t);
+ if (retval) {
+ perror("timer_create(CLOCK_REALTIME) failed");
+ }
+ assert(retval == 0);
+
+ printf("\ntest 10: set absolute time (no time specification): expect failure\n");
+ retval = timer_settime(t, TIMER_ABSTIME, NULL, NULL);
+ if (retval) {
+ perror("timer_settime(TIMER_ABSTIME) failed");
+ }
+ assert(retval == -1);
+
+ printf("\ntest 11: set relative time (no time specification): expect failure\n");
+ retval = timer_settime(t, 0, NULL, NULL);
+ if (retval) {
+ perror("timer_settime(0) failed");
+ }
+ assert(retval == -1);
+
+ printf("\ntest 12: set absolute time (bogus time specification): expect failure\n");
+ retval = timer_settime(t, TIMER_ABSTIME, (struct itimerspec*)1, NULL);
+ if (retval) {
+ perror("timer_settime(TIMER_ABSTIME, 1, 0) failed");
+ }
+ assert(retval == -1);
+
+ printf("\ntest 13: set absolute time (bogus time specification): expect failure\n");
+ retval = timer_settime(t, TIMER_ABSTIME, NULL, (struct itimerspec*)1);
+ if (retval) {
+ perror("timer_settime(TIMER_ABSTIME, 0, 1) failed");
+ }
+ assert(retval == -1);
+
+ printf("\ntest 14: set absolute time (bogus time specification): expect failure\n");
+ retval = timer_settime(t, TIMER_ABSTIME, (struct itimerspec*)1, (struct itimerspec*)1);
+ if (retval) {
+ perror("timer_settime(TIMER_ABSTIME, 1, 1) failed");
+ }
+ assert(retval == -1);
+
+ printf("\ntest 15: set relative time (bogus time specification): expect failure\n");
+ retval = timer_settime(t, 0, (struct itimerspec*)1, NULL);
+ if (retval) {
+ perror("timer_settime(0, 1, 0) failed");
+ }
+ assert(retval == -1);
+
+ printf("\ntest 16: set relative time (bogus time specification): expect failure\n");
+ retval = timer_settime(t, 0, NULL, (struct itimerspec*)1);
+ if (retval) {
+ perror("timer_settime(0, 0, 1) failed");
+ }
+ assert(retval == -1);
+
+ printf("\ntest 17: set relative time (bogus time specification): expect failure\n");
+ retval = timer_settime(t, 0, (struct itimerspec*)1, (struct itimerspec*)1);
+ if (retval) {
+ perror("timer_settime(0, 1, 1) failed");
+ }
+ assert(retval == -1);
+
+ retval = clock_gettime(CLOCK_REALTIME, &ispec.it_value);
+ if (retval) {
+ perror("clock_gettime(CLOCK_REALTIME) failed");
+ }
+ assert(retval == 0);
+ ispec.it_value.tv_sec += 2;
+ ispec.it_value.tv_nsec = 0;
+ ispec.it_interval.tv_sec = 0;
+ ispec.it_interval.tv_nsec = 0;
+ reset_ref_time();
+
+ printf("\ntest 18: set timer (absolute time) 2 seconds in the future\n");
+ retval = timer_settime(t, TIMER_ABSTIME, &ispec, &ospec);
+ if (retval) {
+ perror("timer_settime(TIMER_ABSTIME) failed");
+ }
+ assert(retval == 0);
+ printf("timer_settime: old setting value=%ld.%09ld, interval=%ld.%09ld\n",
+ ospec.it_value.tv_sec, ospec.it_value.tv_nsec,
+ ospec.it_interval.tv_sec, ospec.it_interval.tv_nsec);
+
+ reset_ref_time();
+
+ printf("\ntest 19: set timer (absolute time) same time\n");
+ retval = timer_settime(t, TIMER_ABSTIME, &ispec, &ospec);
+ if (retval) {
+ perror("timer_settime(TIMER_ABSTIME) failed");
+ }
+ assert(retval == 0);
+ printf("timer_settime: old setting value=%ld.%09ld, interval=%ld.%09ld\n",
+ ospec.it_value.tv_sec, ospec.it_value.tv_nsec,
+ ospec.it_interval.tv_sec, ospec.it_interval.tv_nsec);
+
+ printf("\ntest 20: timer_gettime bogus timer id (-1): expect failure\n");
+ retval = timer_gettime(-1, NULL);
+ if (retval) {
+ perror("timer_gettime() failed");
+ }
+ assert(retval == -1);
+
+ printf("\ntest 21: timer_gettime good timer id, NULL timespec pointer: expect failure\n");
+ retval = timer_gettime(t, NULL);
+ if (retval) {
+ perror("timer_gettime() failed");
+ }
+ assert(retval == -1);
+
+ printf("\ntest 22: timer_gettime good timer id, bogus timespec pointer: expect failure\n");
+ retval = timer_gettime(t, (struct itimerspec*)1);
+ if (retval) {
+ perror("timer_gettime() failed");
+ }
+ assert(retval == -1);
+
+ printf("\ntest 23: timer_gettime good timer id, good timespec pointer\n");
+ retval = timer_gettime(t, &ispec);
+ if (retval) {
+ perror("timer_gettime() failed");
+ }
+ assert(retval == 0);
+ printf("timer_gettime: value=%ld.%09ld, interval=%ld.%09ld\n",
+ ispec.it_value.tv_sec, ispec.it_value.tv_nsec,
+ ispec.it_interval.tv_sec, ispec.it_interval.tv_nsec);
+
+ printf("\ntest 24: send ALRM signal to self with kill()\n");
+ reset_ref_time();
+ sival_expected = -1;
+ retval = kill(getpid(), SIGALRM);
+ if (retval) {
+ perror("kill(myself with SIGALRM) failed");
+ }
+ assert(retval == 0);
+
+ printf("\ntest 25: send ALRM signal to self with sigqueue()\n");
+ reset_ref_time();
+ sival_expected = val.sival_int = 4;
+ retval = sigqueue(getpid(), SIGALRM, val);
+ if (retval) {
+ perror("sigqueue(myself with SIGALRM) failed");
+ }
+ assert(retval == 0);
+
+ sigemptyset(&set);
+ sigaddset(&set, SIGALRM);
+ sigprocmask(SIG_BLOCK, &set, NULL);
+
+ printf("\ntest 26: send ALRM signal to self with kill() (signal blocked)\n");
+ retval = kill(getpid(), SIGALRM);
+ if (retval) {
+ perror("kill(myself with SIGALRM) failed");
+ }
+ assert(retval == 0);
+
+ printf("\ntest 27: wait for ALRM signal with info\n");
+ reset_ref_time();
+ info.si_uid = 1;
+ sival_expected = -1;
+ signo = sigwaitinfo(&set, &info);
+ print_siginfo(signo, &info);
+
+ printf("\ntest 28: send ALRM signal to self with sigqueue() (signal blocked)\n");
+ sival_expected = val.sival_int = 4;
+ retval = sigqueue(getpid(), SIGALRM, val);
+ if (retval) {
+ perror("sigqueue(myself with SIGALRM) failed");
+ }
+ assert(retval == 0);
+ uname(&utsname);
+ if (strncmp(utsname.release, "2.3", 3) <= 0) {
+ printf("\nLinux <= 2.3 does not carry siginfo data for SIGALRM\n");
+ sival_expected = -1;
+ }
+
+ printf("\ntest 29: wait for ALRM signal with info\n");
+ reset_ref_time();
+ info.si_uid = 1;
+ signo = sigwaitinfo(&set, &info);
+ print_siginfo(signo, &info);
+ sigprocmask(SIG_UNBLOCK, &set, NULL);
+
+ printf("\ntest 30: timer_gettime()\n");
+ sleep(1);
+ retval = timer_gettime(t, &ispec);
+ if (retval) {
+ perror("timer_gettime() failed");
+ }
+ assert(retval == 0);
+ printf("timer_gettime: value=%ld.%09ld, interval=%ld.%09ld\n",
+ ispec.it_value.tv_sec, ispec.it_value.tv_nsec,
+ ispec.it_interval.tv_sec, ispec.it_interval.tv_nsec);
+
+ sival_expected = -1;
+ sleep(1); /* wait for timer expiration of test 18 */
+
+ printf("\ntest 31: timer_delete()\n");
+ retval = timer_delete(t);
+ if (retval) {
+ perror("timer_delete(deleted timer) failed");
+ }
+ assert(retval == 0);
+
+ printf("\ntest 32: timer_gettime: deleted timer and NULL itimer_spec: expect failure\n");
+ retval = timer_gettime(t, NULL);
+ if (retval) {
+ perror("timer_gettime() failed");
+ }
+ assert(retval == -1);
+
+ /*
+ * test to check timer cancellation by deletion
+ */
+
+ printf("\ntest 33: create default timer\n");
+ retval = timer_create(CLOCK_REALTIME, NULL, &t);
+ if (retval) {
+ perror("timer_create(CLOCK_REALTIME) failed");
+ }
+
+ ispec.it_value.tv_sec = 2;
+ ispec.it_value.tv_nsec = 0;
+ ispec.it_interval.tv_sec = 0;
+ ispec.it_interval.tv_nsec = 0;
+ reset_ref_time();
+
+ retval = timer_settime(t, 0, &ispec, &ospec);
+ if (retval) {
+ perror("timer_settime() failed");
+ }
+ printf("timer_settime: old setting value=%ld.%09ld, interval=%ld.%09ld\n",
+ ospec.it_value.tv_sec, ospec.it_value.tv_nsec,
+ ospec.it_interval.tv_sec, ospec.it_interval.tv_nsec);
+
+ printf("delete the timer\n");
+ retval = timer_delete(t);
+ if (retval) {
+ perror("timer_delete(deleted timer) failed");
+ }
+ printf("wait 3 seconds\n");
+ sleep(3);
+ printf("no timer expiration expected\n");
+
+ /*
+ * test to check relative timer expirations
+ */
+
+ printf("\nTest 34: Expiration in one second with relative timer\n");
+
+ retval = timer_create(CLOCK_REALTIME, NULL, &t);
+ if (retval) {
+ perror("timer_create(CLOCK_REALTIME) failed");
+ }
+
+ ispec.it_value.tv_sec = 1;
+ ispec.it_value.tv_nsec = 0;
+ ispec.it_interval.tv_sec = 0;
+ ispec.it_interval.tv_nsec = 0;
+ reset_ref_time();
+ retval = timer_settime(t, 0, &ispec, &ospec);
+ if (retval) {
+ perror("timer_settime() failed");
+ }
+
+ printf("timer_settime: old setting value=%ld.%09ld, interval=%ld.%09ld\n",
+ ospec.it_value.tv_sec, ospec.it_value.tv_nsec,
+ ospec.it_interval.tv_sec, ospec.it_interval.tv_nsec);
+
+ retval = timer_gettime(t, &ispec);
+ if (retval) {
+ perror("timer_gettime() failed");
+ }
+ printf("timer_gettime: value=%ld.%09ld, interval=%ld.%09ld\n",
+ ispec.it_value.tv_sec, ispec.it_value.tv_nsec,
+ ispec.it_interval.tv_sec, ispec.it_interval.tv_nsec);
+
+ printf("waiting for signal to arrive...\n");
+ sleep(2);
+
+ retval = timer_gettime(t, &ispec);
+ if (retval) {
+ perror("timer_gettime() failed");
+ }
+
+ printf("timer_gettime: value=%ld.%09ld, interval=%ld.%09ld\n",
+ ispec.it_value.tv_sec, ispec.it_value.tv_nsec,
+ ispec.it_interval.tv_sec, ispec.it_interval.tv_nsec);
+
+ reset_ref_time();
+ retval = timer_settime(t, 0, &ispec, &ospec);
+ if (retval) {
+ perror("timer_settime() failed");
+ }
+
+ printf("timer_settime: old setting value=%ld.%09ld, interval=%ld.%09ld\n",
+ ospec.it_value.tv_sec, ospec.it_value.tv_nsec,
+ ospec.it_interval.tv_sec, ospec.it_interval.tv_nsec);
+
+ retval = timer_gettime(t, &ispec);
+ if (retval) {
+ perror("timer_gettime() failed");
+ }
+ printf("timer_gettime: value=%ld.%09ld, interval=%ld.%09ld\n",
+ ispec.it_value.tv_sec, ispec.it_value.tv_nsec,
+ ispec.it_interval.tv_sec, ispec.it_interval.tv_nsec);
+ timer_delete(t);
+
+ /*
+ * Test to see if timer goes off immediately if not a future time is
+ * provided with TIMER_ABSTIME
+ */
+ printf("\ntest 35: set up timer to go off immediately, followed by 10 ticks at 10 Hz\n");
+ timer_event_spec.sigev_notify = SIGEV_SIGNAL;
+ timer_event_spec.sigev_signo = SIGRTMIN + 0;
+ sival_expected = timer_event_spec.sigev_value.sival_int = 0x1234;
+ retval = timer_create(CLOCK_REALTIME, &timer_event_spec, &t);
+
+ retval = clock_gettime(CLOCK_REALTIME, &ispec.it_value);
+ if (retval) {
+ perror("clock_gettime(CLOCK_REALTIME) failed");
+ }
+ ispec.it_value.tv_sec -= 1;
+ ispec.it_interval.tv_sec = 0;
+ ispec.it_interval.tv_nsec = 100000000;
+ reset_ref_time();
+ retval = timer_settime(t, TIMER_ABSTIME, &ispec, &ospec);
+ if (retval) {
+ perror("timer_settime(TIMER_ABSTIME) failed");
+ }
+ printf("timer should have expired now\n");
+ printf("timer_settime: old setting value=%ld.%09ld, interval=%ld.%09ld\n",
+ ospec.it_value.tv_sec, ospec.it_value.tv_nsec,
+ ospec.it_interval.tv_sec, ospec.it_interval.tv_nsec);
+ retval = timer_gettime(t, &ispec);
+ if (retval) {
+ perror("timer_gettime() failed");
+ }
+ printf("timer_gettime: value=%ld.%09ld, interval=%ld.%09ld\n",
+ ispec.it_value.tv_sec, ispec.it_value.tv_nsec,
+ ispec.it_interval.tv_sec, ispec.it_interval.tv_nsec);
+ printf("catch 10 signals\n");
+ for (i = 0; i < 10; i++) sleep(1);
+
+ by_now();
+}
diff -urP -I \$Id:.*Exp \$ -X /usr/src/patch.exclude linux-2.5.36-kb/Documentation/high-res-timers/tests/utils.h linux/Documentation/high-res-timers/tests/utils.h
--- linux-2.5.36-kb/Documentation/high-res-timers/tests/utils.h Wed Dec 31 16:00:00 1969
+++ linux/Documentation/high-res-timers/tests/utils.h Fri Sep 27 11:02:29 2002
@@ -0,0 +1,267 @@
+#ifdef OPTION_U
+#if OPTION_U == USAGE
+#undef OPTION_H
+#undef PAR
+#undef NIL
+#define OPTION_H(shortc,short,long,par,desc) " -"#short" --"#long par"\t"#desc
+#define PAR "\tX"
+#define NIL "\t"
+#undef OPTION_U
+#elif OPTION_U == LONG
+#undef OPTION_H
+#undef PAR
+#undef NIL
+#undef OPTION_U
+#define OPTION_H(shortc,short,long,parm,desc) { #long,parm,NULL,shortc},
+#define PAR 1
+#define NIL 0
+#elif OPTION_U == SHORT
+#undef OPTION_H
+#undef PAR
+#undef NIL
+#define OPTION_H(shortc,short,long,parm,desc) #short parm
+#define PAR ":"
+#define NIL
+#undef OPTION_U
+#else
+#error "OPTION_U error"
+#undef OPTION_U
+#endif
+#endif // OPTION_U
+#ifndef _UTILS_H
+#define _UTILS_H
+#include <sys/time.h>
+#include <unistd.h>
+#include <signal.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sched.h>
+#include <assert.h>
+#define _GNU_SOURCE
+#include <getopt.h>
+#define SHORT 1
+#define LONG 2
+#define USAGE 0
+
+/*
+ * The "wait" set of macros are designed to allow parent and child to wait on
+ * one another without spin loop or sleep overhead. We just use a given signal
+ * to pass the wait or not info. In order to eliminate races, you will want
+ * to call "wait_setup(sig)" prior to doing anything that may lead to a signal.
+ * "wait_sync()" waits for the signal, and "wait_send(who)" sends the signal.
+ * "wait_flush()" flushes out any left over signals.
+ */
+#define WAIT_VARS() int wait_for_this_sig;sigset_t wait_set;
+#define wait_setup(signal) do{wait_for_this_sig = signal;\
+ sigemptyset(&wait_set); \
+ sigaddset(&wait_set, signal); \
+ Try(sigprocmask(SIG_BLOCK, &wait_set, NULL));\
+ } while(0)
+#define wait_sync() do{int sig = 0;\
+ while(sig != wait_for_this_sig) { \
+ Try(sigwait(&wait_set,&sig));\
+ }\
+ }while(0)
+#define wait_send(who) do{ Try(kill(who,wait_for_this_sig));}while(0)
+/*
+ * Flush any pending signals, then restore the old action.
+ */
+#define wait_flush() do{struct sigaction oldact,sigact; \
+ sigact.sa_handler = SIG_IGN; \
+ sigemptyset(&sigact.sa_mask);\
+ Try(sigaction(wait_for_this_sig,&sigact,&oldact));\
+ Try(sigaction(wait_for_this_sig,&oldact,NULL)); \
+ }while(0)
+/*
+ * Define some nice color stuff
+ */
+#define MOVE_TO_COL(col) "\033["#col"G"
+#define SETCOLOR_SUCCESS "\033[1;32m"
+#define SETCOLOR_FAILURE "\033[1;31m"
+#define SETCOLOR_WARNING "\033[1;33m"
+#define SETCOLOR_NORMAL "\033[0;39m"
+
+#undef __assert_fail
+# define __assert_fail(exp,file,line,fun) \
+({fprintf(stderr,SETCOLOR_FAILURE ": %s:%d: %s:assert(%s) failed\n"SETCOLOR_NORMAL,file,line,fun,exp);\
+global_error++;})
+//#define NSEC_PER_SEC 1000000000
+#define roundtores(t,r) (t)->tv_nsec += (r - 1); \
+ if ((t)->tv_nsec >NSEC_PER_SEC){ \
+ (t)->tv_nsec -= NSEC_PER_SEC;(t)->tv_sec++;}\
+ (t)->tv_nsec -= (t)->tv_nsec % r
+#define timerplusnsec(c,d) (c)->tv_nsec +=(d); \
+ if ((c)->tv_nsec >NSEC_PER_SEC){ \
+ (c)->tv_nsec -= NSEC_PER_SEC;(c)->tv_sec++;}
+
+#define timerdiff(a,b) ((float)((a)->tv_sec - (b)->tv_sec) + \
+ (float)((a)->tv_nsec - (b)->tv_nsec)/NSEC_PER_SEC)
+
+#define timersum(c,a,b) (c)->tv_sec = ((a)->tv_sec + (b)->tv_sec); \
+ (c)->tv_nsec = ((a)->tv_nsec + (b)->tv_nsec); \
+ if ((c)->tv_nsec > NSEC_PER_SEC){ \
+ (c)->tv_nsec -= NSEC_PER_SEC;(c)->tv_sec++;}
+#define timersubtract(c,a,b) (c)->tv_sec = ((a)->tv_sec - (b)->tv_sec); \
+ (c)->tv_nsec = ((a)->tv_nsec - (b)->tv_nsec); \
+ if ((c)->tv_nsec < 0){ \
+ (c)->tv_nsec += NSEC_PER_SEC;(c)->tv_sec--;}
+#define timer_gt(a,b) (((a)->tv_sec > (b)->tv_sec) ? 1 : \
+ (((a)->tv_sec < (b)->tv_sec) ? 0 : \
+ ((a)->tv_nsec > (b)->tv_nsec)))
+#define timeval_to_timespec(a,b) (b)->tv_sec = (a)->tv_sec; \
+ (b)->tv_nsec = (a)->tv_usec * 1000
+#define timespec_to_timeval(a,b) (b)->tv_sec = (a)->tv_sec; \
+ (b)->tv_usec = (a)->tv_nsec / 1000
+#define timevaldiff(a,b) (((a)->tv_sec - (b)->tv_sec)*1000000 + \
+ (a)->tv_usec - (b)->tv_usec)
+
+int global_error;
+#define by_now() { char * excolor = (global_error) ? SETCOLOR_FAILURE : \
+ SETCOLOR_WARNING; \
+ fprintf(stderr, \
+ "%sEnd of test, %d error(s) found.\n" \
+ SETCOLOR_NORMAL, \
+ excolor,global_error); \
+ exit(global_error);}
+#ifdef debug
+#undef debug
+#define debug(a) do {a}while (0)
+#else
+#define debug(a) do {} while (0)
+#endif
+#define MASK(x) (1<<(x))
+#define long_short(f) (f>0 ? " long" : " short")
+/*
+ * This is the generic non-errno error header
+ */
+#define myerror(s) MYerror(__BASE_FILE__,__LINE__,s)
+void MYerror(char * where,int line,char *what)
+{
+ fprintf(stderr,SETCOLOR_FAILURE"%s,%d:%s" SETCOLOR_NORMAL,
+ where,line,what);
+ fflush(stderr);
+ fflush(stdout);
+ ++global_error;
+}
+/*
+ * This is an error reporter for errors we don't want to continue after
+ */
+#define myperror(s) MYperror(__BASE_FILE__,__LINE__,s)
+int MYperror(char * where,int line,char *what)
+{
+ fprintf(stderr,SETCOLOR_FAILURE"%s,%d:",where,line);
+ perror(what);
+ fprintf(stderr,SETCOLOR_NORMAL);
+ fflush(stderr);
+ fflush(stdout);
+ ++global_error;
+ by_now();
+}
+/*
+ * This is a result reporter. Set e = 0 if the expected value is 0 (no error)
+ * Set the expected error otherwise. (For now we don't check errno against e)
+ */
+#define my_c_perror(e,s) MY_c_perror(e,__BASE_FILE__,__LINE__,s)
+int MY_c_perror(int e,char * where,int line,char *what)
+{
+ char *fmt;
+ fmt = e ? "expected" :SETCOLOR_FAILURE"UNEXPECTED";
+ fprintf(stderr,"%s %s,%d:",fmt,where,line);
+ perror(what);
+ if ((e > 0) && (e != errno)){
+ errno = e;
+ perror(SETCOLOR_FAILURE"Expected");
+ global_error++;
+ fprintf(stderr,SETCOLOR_NORMAL);
+ }
+ if ( ! e) {
+ if ((e > 0) && (e != errno)){
+ perror("Found ");
+ errno = e;
+ perror("Expected");
+ }
+ global_error++;
+ fprintf(stderr,SETCOLOR_NORMAL);
+ }
+ fflush(stderr);
+ fflush(stdout);
+ return e ? 0:-1;
+}
+#define no_error(e,s) No_error(e,__BASE_FILE__,__LINE__,s)
+int No_error(int e,char * where,int line,char *what)
+{
+ char *fmt;
+ fmt = e ? SETCOLOR_FAILURE"ERROR expected but not found" : "Cool";
+ fprintf(stderr,"%s %s,%d:%s\n"SETCOLOR_NORMAL,fmt,where,line,what);
+ if ( e) {
+ if ((e > 0) && (e != errno)){
+ errno = 0;
+ perror("Found ");
+ errno = e;
+ perror("Expected");
+ }
+ global_error++;
+ fprintf(stderr,SETCOLOR_NORMAL);
+ }
+ fflush(stderr);
+ fflush(stdout);
+ return e ? -1 : 0;
+}
+/*
+ * Try() is a macro for making system calls where an error return is -1.
+ * Used as a function, it returns any value other than -1. Mostly we
+ * use it as a straight call, but one never knows. Also can be called
+ * with some expression which will exit the program with an error message
+ * if it ever gets to -1. For example:
+ * count = 100;
+ * ---loop stuff ---
+ * Try (--count);
+ * ---end of loop ---
+ * Will stop the loop with an error after 101 times around. Great for
+ * stopping run away while loops.
+ * Since it exits via myperror, above, it will report where the exit
+ * came from (source and line number). Error text will be the expression.
+ */
+#define Try(f) ({int foobas = (f); \
+ if( foobas == -1) \
+ myperror( #f ); \
+ foobas;})
+#define try(e,f) ({int foobas = (f); if( foobas == -1){ my_c_perror( e,#f );\
+ } else{ no_error(e,#f);} foobas;})
+/* These two printf() calls take a string with "%d.%03d" somewhere in it
+ * and an integer. They print the interger as a decimal with 3 digits
+ * to the right of the decimal point. Use to print microsecond values
+ * as milliseconds. The second version is used to print two such values.
+ */
+#define printf1(s, d) printfx(s,d,1000)
+void printfx(char *s,int d, int x){printf(s,d/x,d%x);}
+void printf2(char *s,int d, int e){ printf(s,d/1000,d%1000,e/1000,e%1000);}
+/* Bit map routines. These routines work on a bit map of N words. We assume
+ * the bit width of a word is 32.
+ * Here we only need test, set and clear. There are others to be found in
+ * the bitops.h headers.
+ */
+#ifdef ASM_BITOPS
+#include <asm/bitops.h>
+#define BIT_SHIFT 5
+#define WORD_MASK (int)(-1<<BIT_SHIFT)
+#define BIT_MASK (~WORD_MASK)
+#define clearbit(bit, add) clear_bit((bit)&BIT_MASK,(add)+((bit)>>BIT_SHIFT))
+#define setbit(bit, add) set_bit((bit)&BIT_MASK,(add)+((bit)>>BIT_SHIFT))
+#define testbit(bit, add) __test_bit((bit)&BIT_MASK,(add)+((bit)>>BIT_SHIFT))
+#else
+#define BIT_SHIFT 5
+#define WORD_MASK (int)(-1<<BIT_SHIFT)
+#define BIT_MASK (~WORD_MASK)
+#define clearbit(bit, add) *((add)+((bit)>>BIT_SHIFT)) &= ~(1<<((bit)&BIT_MASK))
+#define setbit(bit, add) *((add)+((bit)>>BIT_SHIFT)) |= 1<<((bit)&BIT_MASK)
+#define testbit(bit, add) (*((add)+((bit)>>BIT_SHIFT)) & 1<<((bit)&BIT_MASK))
+#endif
+#define NO_BITS 10000
+#define NO_WDS ((NO_BITS/32)+1)
+
+#endif
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