tests/linux-test.c

   1 /*
   2  *  linux and CPU test
   3  *
   4  *  Copyright (c) 2003 Fabrice Bellard
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  19  *  MA 02110-1301, USA.
  20  */
  21 #include <stdarg.h>
  22 #include <stdlib.h>
  23 #include <stdio.h>
  24 #include <unistd.h>
  25 #include <fcntl.h>
  26 #include <inttypes.h>
  27 #include <string.h>
  28 #include <sys/types.h>
  29 #include <sys/stat.h>
  30 #include <sys/wait.h>
  31 #include <errno.h>
  32 #include <utime.h>
  33 #include <time.h>
  34 #include <sys/time.h>
  35 #include <sys/uio.h>
  36 #include <sys/socket.h>
  37 #include <netinet/in.h>
  38 #include <arpa/inet.h>
  39 #include <sched.h>
  40 #include <dirent.h>
  41 #include <setjmp.h>
  42 #include <sys/shm.h>
  43
  44 #define TESTPATH "/tmp/linux-test.tmp"
  45 #define TESTPORT 7654
  46 #define STACK_SIZE 16384
  47
  48 void error1(const char *filename, int line, const char *fmt, ...)
  49 {
  50     va_list ap;
  51     va_start(ap, fmt);
  52     fprintf(stderr, "%s:%d: ", filename, line);
  53     vfprintf(stderr, fmt, ap);
  54     fprintf(stderr, "\n");
  55     va_end(ap);
  56     exit(1);
  57 }
  58
  59 int __chk_error(const char *filename, int line, int ret)
  60 {
  61     if (ret < 0) {
  62         error1(filename, line, "%m (ret=%d, errno=%d)",
  63                ret, errno);
  64     }
  65     return ret;
  66 }
  67
  68 #define error(fmt, args...) error1(__FILE__, __LINE__, fmt, ##args)
  69
  70 #define chk_error(ret) __chk_error(__FILE__, __LINE__, (ret))
  71
  72 /*******************************************************/
  73
  74 #define FILE_BUF_SIZE 300
  75
  76 void test_file(void)
  77 {
  78     int fd, i, len, ret;
  79     uint8_t buf[FILE_BUF_SIZE];
  80     uint8_t buf2[FILE_BUF_SIZE];
  81     uint8_t buf3[FILE_BUF_SIZE];
  82     char cur_dir[1024];
  83     struct stat st;
  84     struct utimbuf tbuf;
  85     struct iovec vecs[2];
  86     DIR *dir;
  87     struct dirent *de;
  88
  89     /* clean up, just in case */
  90     unlink(TESTPATH "/file1");
  91     unlink(TESTPATH "/file2");
  92     unlink(TESTPATH "/file3");
  93     rmdir(TESTPATH);
  94
  95     if (getcwd(cur_dir, sizeof(cur_dir)) == NULL)
  96         error("getcwd");
  97
  98     chk_error(mkdir(TESTPATH, 0755));
  99
 100     chk_error(chdir(TESTPATH));
 101
 102     /* open/read/write/close/readv/writev/lseek */
 103
 104     fd = chk_error(open("file1", O_WRONLY | O_TRUNC | O_CREAT, 0644));
 105     for(i=0;i < FILE_BUF_SIZE; i++)
 106         buf[i] = i;
 107     len = chk_error(write(fd, buf, FILE_BUF_SIZE / 2));
 108     if (len != (FILE_BUF_SIZE / 2))
 109         error("write");
 110     vecs[0].iov_base = buf + (FILE_BUF_SIZE / 2);
 111     vecs[0].iov_len = 16;
 112     vecs[1].iov_base = buf + (FILE_BUF_SIZE / 2) + 16;
 113     vecs[1].iov_len = (FILE_BUF_SIZE / 2) - 16;
 114     len = chk_error(writev(fd, vecs, 2));
 115     if (len != (FILE_BUF_SIZE / 2))
 116      error("writev");
 117     chk_error(close(fd));
 118
 119     chk_error(rename("file1", "file2"));
 120
 121     fd = chk_error(open("file2", O_RDONLY));
 122
 123     len = chk_error(read(fd, buf2, FILE_BUF_SIZE));
 124     if (len != FILE_BUF_SIZE)
 125         error("read");
 126     if (memcmp(buf, buf2, FILE_BUF_SIZE) != 0)
 127         error("memcmp");
 128
 129 #define FOFFSET 16
 130     ret = chk_error(lseek(fd, FOFFSET, SEEK_SET));
 131     if (ret != 16)
 132         error("lseek");
 133     vecs[0].iov_base = buf3;
 134     vecs[0].iov_len = 32;
 135     vecs[1].iov_base = buf3 + 32;
 136     vecs[1].iov_len = FILE_BUF_SIZE - FOFFSET - 32;
 137     len = chk_error(readv(fd, vecs, 2));
 138     if (len != FILE_BUF_SIZE - FOFFSET)
 139         error("readv");
 140     if (memcmp(buf + FOFFSET, buf3, FILE_BUF_SIZE - FOFFSET) != 0)
 141         error("memcmp");
 142
 143     chk_error(close(fd));
 144
 145     /* access */
 146     chk_error(access("file2", R_OK));
 147
 148     /* stat/chmod/utime/truncate */
 149
 150     chk_error(chmod("file2", 0600));
 151     tbuf.actime = 1001;
 152     tbuf.modtime = 1000;
 153     chk_error(truncate("file2", 100));
 154     chk_error(utime("file2", &tbuf));
 155     chk_error(stat("file2", &st));
 156     if (st.st_size != 100)
 157         error("stat size");
 158     if (!S_ISREG(st.st_mode))
 159         error("stat mode");
 160     if ((st.st_mode & 0777) != 0600)
 161         error("stat mode2");
 162     if (st.st_atime != 1001 ||
 163         st.st_mtime != 1000)
 164         error("stat time");
 165
 166     chk_error(stat(TESTPATH, &st));
 167     if (!S_ISDIR(st.st_mode))
 168         error("stat mode");
 169
 170     /* fstat */
 171     fd = chk_error(open("file2", O_RDWR));
 172     chk_error(ftruncate(fd, 50));
 173     chk_error(fstat(fd, &st));
 174     chk_error(close(fd));
 175
 176     if (st.st_size != 50)
 177         error("stat size");
 178     if (!S_ISREG(st.st_mode))
 179         error("stat mode");
 180
 181     /* symlink/lstat */
 182     chk_error(symlink("file2", "file3"));
 183     chk_error(lstat("file3", &st));
 184     if (!S_ISLNK(st.st_mode))
 185         error("stat mode");
 186
 187     /* getdents */
 188     dir = opendir(TESTPATH);
 189     if (!dir)
 190         error("opendir");
 191     len = 0;
 192     for(;;) {
 193         de = readdir(dir);
 194         if (!de)
 195             break;
 196         if (strcmp(de->d_name, ".") != 0 &&
 197             strcmp(de->d_name, "..") != 0 &&
 198             strcmp(de->d_name, "file2") != 0 &&
 199             strcmp(de->d_name, "file3") != 0)
 200             error("readdir");
 201         len++;
 202     }
 203     closedir(dir);
 204     if (len != 4)
 205         error("readdir");
 206
 207     chk_error(unlink("file3"));
 208     chk_error(unlink("file2"));
 209     chk_error(chdir(cur_dir));
 210     chk_error(rmdir(TESTPATH));
 211 }
 212
 213 void test_fork(void)
 214 {
 215     int pid, status;
 216
 217     pid = chk_error(fork());
 218     if (pid == 0) {
 219         /* child */
 220         exit(2);
 221     }
 222     chk_error(waitpid(pid, &status, 0));
 223     if (!WIFEXITED(status) || WEXITSTATUS(status) != 2)
 224         error("waitpid status=0x%x", status);
 225 }
 226
 227 void test_time(void)
 228 {
 229     struct timeval tv, tv2;
 230     struct timespec ts, rem;
 231     struct rusage rusg1, rusg2;
 232     int ti, i;
 233
 234     chk_error(gettimeofday(&tv, NULL));
 235     rem.tv_sec = 1;
 236     ts.tv_sec = 0;
 237     ts.tv_nsec = 20 * 1000000;
 238     chk_error(nanosleep(&ts, &rem));
 239     if (rem.tv_sec != 1)
 240         error("nanosleep");
 241     chk_error(gettimeofday(&tv2, NULL));
 242     ti = tv2.tv_sec - tv.tv_sec;
 243     if (ti >= 2)
 244         error("gettimeofday");
 245
 246     chk_error(getrusage(RUSAGE_SELF, &rusg1));
 247     for(i = 0;i < 10000; i++);
 248     chk_error(getrusage(RUSAGE_SELF, &rusg2));
 249     if ((rusg2.ru_utime.tv_sec - rusg1.ru_utime.tv_sec) < 0 ||
 250         (rusg2.ru_stime.tv_sec - rusg1.ru_stime.tv_sec) < 0)
 251         error("getrusage");
 252 }
 253
 254 void pstrcpy(char *buf, int buf_size, const char *str)
 255 {
 256     int c;
 257     char *q = buf;
 258
 259     if (buf_size <= 0)
 260         return;
 261
 262     for(;;) {
 263         c = *str++;
 264         if (c == 0 || q >= buf + buf_size - 1)
 265             break;
 266         *q++ = c;
 267     }
 268     *q = '\0';
 269 }
 270
 271 /* strcat and truncate. */
 272 char *pstrcat(char *buf, int buf_size, const char *s)
 273 {
 274     int len;
 275     len = strlen(buf);
 276     if (len < buf_size)
 277         pstrcpy(buf + len, buf_size - len, s);
 278     return buf;
 279 }
 280
 281 int server_socket(void)
 282 {
 283     int val, fd;
 284     struct sockaddr_in sockaddr;
 285
 286     /* server socket */
 287     fd = chk_error(socket(PF_INET, SOCK_STREAM, 0));
 288
 289     val = 1;
 290     chk_error(setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val)));
 291
 292     sockaddr.sin_family = AF_INET;
 293     sockaddr.sin_port = htons(TESTPORT);
 294     sockaddr.sin_addr.s_addr = 0;
 295     chk_error(bind(fd, (struct sockaddr *)&sockaddr, sizeof(sockaddr)));
 296     chk_error(listen(fd, 0));
 297     return fd;
 298
 299 }
 300
 301 int client_socket(void)
 302 {
 303     int fd;
 304     struct sockaddr_in sockaddr;
 305
 306     /* server socket */
 307     fd = chk_error(socket(PF_INET, SOCK_STREAM, 0));
 308     sockaddr.sin_family = AF_INET;
 309     sockaddr.sin_port = htons(TESTPORT);
 310     inet_aton("127.0.0.1", &sockaddr.sin_addr);
 311     chk_error(connect(fd, (struct sockaddr *)&sockaddr, sizeof(sockaddr)));
 312     return fd;
 313 }
 314
 315 const char socket_msg[] = "hello socket\n";
 316
 317 void test_socket(void)
 318 {
 319     int server_fd, client_fd, fd, pid, ret, val;
 320     struct sockaddr_in sockaddr;
 321     socklen_t len;
 322     char buf[512];
 323
 324     server_fd = server_socket();
 325
 326     /* test a few socket options */
 327     len = sizeof(val);
 328     chk_error(getsockopt(server_fd, SOL_SOCKET, SO_TYPE, &val, &len));
 329     if (val != SOCK_STREAM)
 330         error("getsockopt");
 331
 332     pid = chk_error(fork());
 333     if (pid == 0) {
 334         client_fd = client_socket();
 335         send(client_fd, socket_msg, sizeof(socket_msg), 0);
 336         close(client_fd);
 337         exit(0);
 338     }
 339     len = sizeof(sockaddr);
 340     fd = chk_error(accept(server_fd, (struct sockaddr *)&sockaddr, &len));
 341
 342     ret = chk_error(recv(fd, buf, sizeof(buf), 0));
 343     if (ret != sizeof(socket_msg))
 344         error("recv");
 345     if (memcmp(buf, socket_msg, sizeof(socket_msg)) != 0)
 346         error("socket_msg");
 347     chk_error(close(fd));
 348     chk_error(close(server_fd));
 349 }
 350
 351 #define WCOUNT_MAX 512
 352
 353 void test_pipe(void)
 354 {
 355     fd_set rfds, wfds;
 356     int fds[2], fd_max, ret;
 357     uint8_t ch;
 358     int wcount, rcount;
 359
 360     chk_error(pipe(fds));
 361     chk_error(fcntl(fds[0], F_SETFL, O_NONBLOCK));
 362     chk_error(fcntl(fds[1], F_SETFL, O_NONBLOCK));
 363     wcount = 0;
 364     rcount = 0;
 365     for(;;) {
 366         FD_ZERO(&rfds);
 367         fd_max = fds[0];
 368         FD_SET(fds[0], &rfds);
 369
 370         FD_ZERO(&wfds);
 371         FD_SET(fds[1], &wfds);
 372         if (fds[1] > fd_max)
 373             fd_max = fds[1];
 374
 375         ret = chk_error(select(fd_max + 1, &rfds, &wfds, NULL, NULL));
 376         if (ret > 0) {
 377             if (FD_ISSET(fds[0], &rfds)) {
 378                 chk_error(read(fds[0], &ch, 1));
 379                 rcount++;
 380                 if (rcount >= WCOUNT_MAX)
 381                     break;
 382             }
 383             if (FD_ISSET(fds[1], &wfds)) {
 384                 ch = 'a';
 385                 chk_error(write(fds[0], &ch, 1));
 386                 wcount++;
 387             }
 388         }
 389     }
 390     chk_error(close(fds[0]));
 391     chk_error(close(fds[1]));
 392 }
 393
 394 int thread1_res;
 395 int thread2_res;
 396
 397 int thread1_func(void *arg)
 398 {
 399     int i;
 400     for(i=0;i<5;i++) {
 401         thread1_res++;
 402         usleep(10 * 1000);
 403     }
 404     return 0;
 405 }
 406
 407 int thread2_func(void *arg)
 408 {
 409     int i;
 410     for(i=0;i<6;i++) {
 411         thread2_res++;
 412         usleep(10 * 1000);
 413     }
 414     return 0;
 415 }
 416
 417 void test_clone(void)
 418 {
 419     uint8_t *stack1, *stack2;
 420     int pid1, pid2, status1, status2;
 421
 422     stack1 = malloc(STACK_SIZE);
 423     pid1 = chk_error(clone(thread1_func, stack1 + STACK_SIZE,
 424                            CLONE_VM | CLONE_FS | CLONE_FILES | SIGCHLD, "hello1"));
 425
 426     stack2 = malloc(STACK_SIZE);
 427     pid2 = chk_error(clone(thread2_func, stack2 + STACK_SIZE,
 428                            CLONE_VM | CLONE_FS | CLONE_FILES | SIGCHLD, "hello2"));
 429
 430     while (waitpid(pid1, &status1, 0) != pid1);
 431     while (waitpid(pid2, &status2, 0) != pid2);
 432     if (thread1_res != 5 ||
 433         thread2_res != 6)
 434         error("clone");
 435 }
 436
 437 /***********************************/
 438
 439 volatile int alarm_count;
 440 jmp_buf jmp_env;
 441
 442 void sig_alarm(int sig)
 443 {
 444     if (sig != SIGALRM)
 445         error("signal");
 446     alarm_count++;
 447 }
 448
 449 void sig_segv(int sig, siginfo_t *info, void *puc)
 450 {
 451     if (sig != SIGSEGV)
 452         error("signal");
 453     longjmp(jmp_env, 1);
 454 }
 455
 456 void test_signal(void)
 457 {
 458     struct sigaction act;
 459     struct itimerval it, oit;
 460
 461     /* timer test */
 462
 463     alarm_count = 0;
 464
 465     act.sa_handler = sig_alarm;
 466     sigemptyset(&act.sa_mask);
 467     act.sa_flags = 0;
 468     chk_error(sigaction(SIGALRM, &act, NULL));
 469
 470     it.it_interval.tv_sec = 0;
 471     it.it_interval.tv_usec = 10 * 1000;
 472     it.it_value.tv_sec = 0;
 473     it.it_value.tv_usec = 10 * 1000;
 474     chk_error(setitimer(ITIMER_REAL, &it, NULL));
 475     chk_error(getitimer(ITIMER_REAL, &oit));
 476     if (oit.it_value.tv_sec != it.it_value.tv_sec ||
 477         oit.it_value.tv_usec != it.it_value.tv_usec)
 478         error("itimer");
 479
 480     while (alarm_count < 5) {
 481         usleep(10 * 1000);
 482     }
 483
 484     it.it_interval.tv_sec = 0;
 485     it.it_interval.tv_usec = 0;
 486     it.it_value.tv_sec = 0;
 487     it.it_value.tv_usec = 0;
 488     memset(&oit, 0xff, sizeof(oit));
 489     chk_error(setitimer(ITIMER_REAL, &it, &oit));
 490     if (oit.it_value.tv_sec != 0 ||
 491         oit.it_value.tv_usec != 10 * 1000)
 492         error("setitimer");
 493
 494     /* SIGSEGV test */
 495     act.sa_sigaction = sig_segv;
 496     sigemptyset(&act.sa_mask);
 497     act.sa_flags = SA_SIGINFO;
 498     chk_error(sigaction(SIGSEGV, &act, NULL));
 499     if (setjmp(jmp_env) == 0) {
 500         *(uint8_t *)0 = 0;
 501     }
 502
 503     act.sa_handler = SIG_DFL;
 504     sigemptyset(&act.sa_mask);
 505     act.sa_flags = 0;
 506     chk_error(sigaction(SIGSEGV, &act, NULL));
 507 }
 508
 509 #define SHM_SIZE 32768
 510
 511 void test_shm(void)
 512 {
 513     void *ptr;
 514     int shmid;
 515
 516     shmid = chk_error(shmget(IPC_PRIVATE, SHM_SIZE, IPC_CREAT | 0777));
 517     ptr = shmat(shmid, NULL, 0);
 518     if (!ptr)
 519         error("shmat");
 520
 521     memset(ptr, 0, SHM_SIZE);
 522
 523     chk_error(shmctl(shmid, IPC_RMID, 0));
 524     chk_error(shmdt(ptr));
 525 }
 526
 527 int main(int argc, char **argv)
 528 {
 529     test_file();
 530     test_fork();
 531     test_time();
 532     test_socket();
 533     //    test_clone();
 534     test_signal();
 535     test_shm();
 536     return 0;
 537 }