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tests: add times.test

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* tests/times.c: New file.
* tests/times.test: New test.
* tests/Makefile.am (check_PROGRAMS): Add times.
(TESTS): Add times.test.
(times_LDADD): Define.
* tests/.gitignore: Add times.
This commit is contained in:
Eugene Syromyatnikov 2015-08-04 15:52:55 +03:00 committed by Dmitry V. Levin
parent 6773d6d8a1
commit 7a036055af
4 changed files with 100 additions and 0 deletions
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1
tests/.gitignore vendored
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@ -47,6 +47,7 @@ stat32
statfs
sysinfo
time
times
uid
uid16
uid32

3
tests/Makefile.am
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@ -60,6 +60,7 @@ check_PROGRAMS = \
statfs \
sysinfo \
time \
times \
uid \
uid16 \
uid32 \
@ -80,6 +81,7 @@ mq_LDADD = -lrt
pc_LDADD = $(dl_LIBS)
stat_CFLAGS = $(AM_CFLAGS) -D_FILE_OFFSET_BITS=64
statfs_CFLAGS = $(AM_CFLAGS) -D_FILE_OFFSET_BITS=64
times_LDADD = -lrt
uio_CFLAGS = $(AM_CFLAGS) -D_FILE_OFFSET_BITS=64
stack_fcall_SOURCES = stack-fcall.c \
stack-fcall-0.c stack-fcall-1.c stack-fcall-2.c stack-fcall-3.c
@ -138,6 +140,7 @@ TESTS = \
ppoll.test \
sun_path.test \
time.test \
times.test \
umovestr.test \
umovestr2.test \
unix-yy.test \

83
tests/times.c Normal file
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@ -0,0 +1,83 @@
/**
* @file
* This test burns some CPU cycles in user space and kernel space in order to
* get some non-zero values returned by times(2).
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <sched.h>
#include <stdio.h>
#include <time.h>
#include <unistd.h>
#include <sys/times.h>
#include <sys/wait.h>
enum {
NUM_USER_ITERS = 1000000,
CPUTIME_LIMIT_SEC = 2,
};
int
main (void)
{
struct tms tbuf;
struct timespec ts;
clock_t res;
unsigned long long llres;
volatile int dummy;
pid_t pid;
int i;
pid = fork();
if (pid < 0)
return 77;
/* Enjoying my user time */
while (clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ts) == 0) {
if (ts.tv_sec >= CPUTIME_LIMIT_SEC)
break;
for (i = 0; i < NUM_USER_ITERS; i++, dummy++)
;
}
/* Enjoying my system time */
while (clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ts) == 0) {
if (ts.tv_sec >= (CPUTIME_LIMIT_SEC * 2))
break;
sched_yield();
}
if (pid == 0) {
return 0;
} else {
wait(NULL);
}
res = times(&tbuf);
if (res == (clock_t) -1)
return 77;
if (sizeof(llres) > sizeof(res))
llres = (unsigned long) res;
else
llres = res;
printf("times({tms_utime=%llu, tms_stime=%llu, ",
(unsigned long long) tbuf.tms_utime,
(unsigned long long) tbuf.tms_stime);
printf("tms_cutime=%llu, tms_cstime=%llu}) = %llu\n",
(unsigned long long) tbuf.tms_cutime,
(unsigned long long) tbuf.tms_cstime,
llres);
puts("+++ exited with 0 +++");
return 0;
}

13
tests/times.test Executable file
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@ -0,0 +1,13 @@
#!/bin/sh
# Check decoding of times syscall
. "${srcdir=.}/init.sh"
run_prog > /dev/null
OUT="$LOG.out"
run_strace -etimes -esignal=none $args > "$OUT"
match_diff "$OUT" "$LOG"
rm -f "$OUT"
exit 0