152 lines
2.6 KiB
C
152 lines
2.6 KiB
C
#define _GNU_SOURCE
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/syscall.h>
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#include <sys/types.h>
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#include <sys/mman.h>
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#include <sys/wait.h>
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#include <sched.h>
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#include <fcntl.h>
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#include <pthread.h>
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#include <errno.h>
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int ok;
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void *
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util_thread(void *arg)
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{
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char *p = arg;
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int f;
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int r;
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r = syscall(732);
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if (r == -1) {
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fprintf(stderr, "thread is running on Linux OK\n");
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}
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else {
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fprintf(stderr, "thread is running on McKernel NG(%d)\n", r);
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ok = -1;
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return NULL;
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}
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while (ok == 0)
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;
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f = open("outfile", O_WRONLY|O_CREAT|O_TRUNC, 0600);
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if (f == -1) {
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perror("open(outfile)");
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ok = -1;
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return NULL;
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}
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if ((r = write(f, p, 1024)) == -1) {
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perror("write");
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ok = -1;
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return NULL;
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}
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fprintf(stderr, "remote page fault OK\n");
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close(f);
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if (r != 1024) {
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fprintf(stderr, "BAD out size: %d\n", r);
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ok = -1;
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return NULL;
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}
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ok = 1;
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return NULL;
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}
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int o2;
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void *
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wait_thread(void *arg)
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{
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while (o2 == 0)
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;
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return NULL;
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}
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int
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main(int argc, char **argv)
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{
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int f;
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int r;
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char *p;
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pthread_t thr;
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pthread_t wthr;
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cpu_set_t cpu_set0;
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cpu_set_t cpu_set1;
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cpu_set_t cpu_set;
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int i;
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fprintf(stderr, "*** C1474T04 START ***\n");
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if ((f = open("testfile", O_RDONLY)) == -1) {
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perror("open(testfile)");
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goto ng;
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}
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p = mmap(NULL, 4096, PROT_READ, MAP_SHARED, f, 0);
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if (p == (void *)-1) {
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perror("mmap");
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goto ng;
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}
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close(f);
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if (sched_getaffinity(getpid(), sizeof(cpu_set_t), &cpu_set0) == -1) {
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perror("sched_getaffinity");
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goto ng;
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}
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CPU_ZERO(&cpu_set);
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CPU_ZERO(&cpu_set1);
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for (i = 0; i < sizeof(cpu_set) * 8; i++) {
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if (CPU_ISSET(i, &cpu_set0)) {
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CPU_SET(i, &cpu_set1);
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break;
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}
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}
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for (i++; i < sizeof(cpu_set) * 8; i++) {
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if (CPU_ISSET(i, &cpu_set0)) {
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CPU_SET(i, &cpu_set);
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break;
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}
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}
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if (sched_setaffinity(getpid(), sizeof(cpu_set_t), &cpu_set)) {
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perror("sched_setaffinity");
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goto ng;
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}
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r = pthread_create(&wthr, NULL, wait_thread, NULL);
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if (r) {
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fprintf(stderr, "pthread_create: %d\n", r);
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goto ng;
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}
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r = syscall(731, 1, NULL);
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if (r) {
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fprintf(stderr, "util_indicate_clone r=%d, err=%d\n", r, errno);
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goto ng;
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}
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r = pthread_create(&thr, NULL, util_thread, p);
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if (r) {
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fprintf(stderr, "pthread_create: %d\n", r);
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goto ng;
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}
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if (sched_setaffinity(getpid(), sizeof(cpu_set_t), &cpu_set1)) {
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perror("sched_setaffinity");
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goto ng;
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}
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ok = 2;
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while (ok == 2)
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;
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pthread_join(thr, NULL);
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o2 = 1;
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pthread_join(wthr, NULL);
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if (ok == 1) {
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fprintf(stderr, "*** C1474T04 OK ***\n");
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exit(0);
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}
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ng:
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fprintf(stderr, "*** C1474T04 NG ***\n");
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exit(1);
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}
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