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, see <http://www.gnu.org/licenses/>.
  18  */
  19 #include <stdarg.h>
  20 #include <stdlib.h>
  21 #include <stdio.h>
  22 #include <unistd.h>
  23 #include <fcntl.h>
  24 #include <inttypes.h>
  25 #include <string.h>
  26 #include <sys/types.h>
  27 #include <sys/stat.h>
  28 #include <sys/wait.h>
  29 #include <errno.h>
  30 #include <utime.h>
  31 #include <time.h>
  32 #include <sys/time.h>
  33 #include <sys/uio.h>
  34 #include <sys/socket.h>
  35 #include <netinet/in.h>
  36 #include <arpa/inet.h>
  37 #include <sched.h>
  38 #include <dirent.h>
  39 #include <setjmp.h>
  40 #include <sys/shm.h>
  41
  42 #define TESTPATH "/tmp/linux-test.tmp"
  43 #define TESTPORT 7654
  44 #define STACK_SIZE 16384
  45
  46 void error1(const char *filename, int line, const char *fmt, ...)
  47 {
  48     va_list ap;
  49     va_start(ap, fmt);
  50     fprintf(stderr, "%s:%d: ", filename, line);
  51     vfprintf(stderr, fmt, ap);
  52     fprintf(stderr, "\n");
  53     va_end(ap);
  54     exit(1);
  55 }
  56
  57 int __chk_error(const char *filename, int line, int ret)
  58 {
  59     if (ret < 0) {
  60         error1(filename, line, "%m (ret=%d, errno=%d)",
  61                ret, errno);
  62     }
  63     return ret;
  64 }
  65
  66 #define error(fmt, ...) error1(__FILE__, __LINE__, fmt, ## __VA_ARGS__)
  67
  68 #define chk_error(ret) __chk_error(__FILE__, __LINE__, (ret))
  69
  70 /*******************************************************/
  71
  72 #define FILE_BUF_SIZE 300
  73
  74 void test_file(void)
  75 {
  76     int fd, i, len, ret;
  77     uint8_t buf[FILE_BUF_SIZE];
  78     uint8_t buf2[FILE_BUF_SIZE];
  79     uint8_t buf3[FILE_BUF_SIZE];
  80     char cur_dir[1024];
  81     struct stat st;
  82     struct utimbuf tbuf;
  83     struct iovec vecs[2];
  84     DIR *dir;
  85     struct dirent *de;
  86
  87     /* clean up, just in case */
  88     unlink(TESTPATH "/file1");
  89     unlink(TESTPATH "/file2");
  90     unlink(TESTPATH "/file3");
  91     rmdir(TESTPATH);
  92
  93     if (getcwd(cur_dir, sizeof(cur_dir)) == NULL)
  94         error("getcwd");
  95
  96     chk_error(mkdir(TESTPATH, 0755));
  97
  98     chk_error(chdir(TESTPATH));
  99
 100     /* open/read/write/close/readv/writev/lseek */
 101
 102     fd = chk_error(open("file1", O_WRONLY | O_TRUNC | O_CREAT, 0644));
 103     for(i=0;i < FILE_BUF_SIZE; i++)
 104         buf[i] = i;
 105     len = chk_error(write(fd, buf, FILE_BUF_SIZE / 2));
 106     if (len != (FILE_BUF_SIZE / 2))
 107         error("write");
 108     vecs[0].iov_base = buf + (FILE_BUF_SIZE / 2);
 109     vecs[0].iov_len = 16;
 110     vecs[1].iov_base = buf + (FILE_BUF_SIZE / 2) + 16;
 111     vecs[1].iov_len = (FILE_BUF_SIZE / 2) - 16;
 112     len = chk_error(writev(fd, vecs, 2));
 113     if (len != (FILE_BUF_SIZE / 2))
 114      error("writev");
 115     chk_error(close(fd));
 116
 117     chk_error(rename("file1", "file2"));
 118
 119     fd = chk_error(open("file2", O_RDONLY));
 120
 121     len = chk_error(read(fd, buf2, FILE_BUF_SIZE));
 122     if (len != FILE_BUF_SIZE)
 123         error("read");
 124     if (memcmp(buf, buf2, FILE_BUF_SIZE) != 0)
 125         error("memcmp");
 126
 127 #define FOFFSET 16
 128     ret = chk_error(lseek(fd, FOFFSET, SEEK_SET));
 129     if (ret != 16)
 130         error("lseek");
 131     vecs[0].iov_base = buf3;
 132     vecs[0].iov_len = 32;
 133     vecs[1].iov_base = buf3 + 32;
 134     vecs[1].iov_len = FILE_BUF_SIZE - FOFFSET - 32;
 135     len = chk_error(readv(fd, vecs, 2));
 136     if (len != FILE_BUF_SIZE - FOFFSET)
 137         error("readv");
 138     if (memcmp(buf + FOFFSET, buf3, FILE_BUF_SIZE - FOFFSET) != 0)
 139         error("memcmp");
 140
 141     chk_error(close(fd));
 142
 143     /* access */
 144     chk_error(access("file2", R_OK));
 145
 146     /* stat/chmod/utime/truncate */
 147
 148     chk_error(chmod("file2", 0600));
 149     tbuf.actime = 1001;
 150     tbuf.modtime = 1000;
 151     chk_error(truncate("file2", 100));
 152     chk_error(utime("file2", &tbuf));
 153     chk_error(stat("file2", &st));
 154     if (st.st_size != 100)
 155         error("stat size");
 156     if (!S_ISREG(st.st_mode))
 157         error("stat mode");
 158     if ((st.st_mode & 0777) != 0600)
 159         error("stat mode2");
 160     if (st.st_atime != 1001 ||
 161         st.st_mtime != 1000)
 162         error("stat time");
 163
 164     chk_error(stat(TESTPATH, &st));
 165     if (!S_ISDIR(st.st_mode))
 166         error("stat mode");
 167
 168     /* fstat */
 169     fd = chk_error(open("file2", O_RDWR));
 170     chk_error(ftruncate(fd, 50));
 171     chk_error(fstat(fd, &st));
 172     chk_error(close(fd));
 173
 174     if (st.st_size != 50)
 175         error("stat size");
 176     if (!S_ISREG(st.st_mode))
 177         error("stat mode");
 178
 179     /* symlink/lstat */
 180     chk_error(symlink("file2", "file3"));
 181     chk_error(lstat("file3", &st));
 182     if (!S_ISLNK(st.st_mode))
 183         error("stat mode");
 184
 185     /* getdents */
 186     dir = opendir(TESTPATH);
 187     if (!dir)
 188         error("opendir");
 189     len = 0;
 190     for(;;) {
 191         de = readdir(dir);
 192         if (!de)
 193             break;
 194         if (strcmp(de->d_name, ".") != 0 &&
 195             strcmp(de->d_name, "..") != 0 &&
 196             strcmp(de->d_name, "file2") != 0 &&
 197             strcmp(de->d_name, "file3") != 0)
 198             error("readdir");
 199         len++;
 200     }
 201     closedir(dir);
 202     if (len != 4)
 203         error("readdir");
 204
 205     chk_error(unlink("file3"));
 206     chk_error(unlink("file2"));
 207     chk_error(chdir(cur_dir));
 208     chk_error(rmdir(TESTPATH));
 209 }
 210
 211 void test_fork(void)
 212 {
 213     int pid, status;
 214
 215     pid = chk_error(fork());
 216     if (pid == 0) {
 217         /* child */
 218         exit(2);
 219     }
 220     chk_error(waitpid(pid, &status, 0));
 221     if (!WIFEXITED(status) || WEXITSTATUS(status) != 2)
 222         error("waitpid status=0x%x", status);
 223 }
 224
 225 void test_time(void)
 226 {
 227     struct timeval tv, tv2;
 228     struct timespec ts, rem;
 229     struct rusage rusg1, rusg2;
 230     int ti, i;
 231
 232     chk_error(gettimeofday(&tv, NULL));
 233     rem.tv_sec = 1;
 234     ts.tv_sec = 0;
 235     ts.tv_nsec = 20 * 1000000;
 236     chk_error(nanosleep(&ts, &rem));
 237     if (rem.tv_sec != 1)
 238         error("nanosleep");
 239     chk_error(gettimeofday(&tv2, NULL));
 240     ti = tv2.tv_sec - tv.tv_sec;
 241     if (ti >= 2)
 242         error("gettimeofday");
 243
 244     chk_error(getrusage(RUSAGE_SELF, &rusg1));
 245     for(i = 0;i < 10000; i++);
 246     chk_error(getrusage(RUSAGE_SELF, &rusg2));
 247     if ((rusg2.ru_utime.tv_sec - rusg1.ru_utime.tv_sec) < 0 ||
 248         (rusg2.ru_stime.tv_sec - rusg1.ru_stime.tv_sec) < 0)
 249         error("getrusage");
 250 }
 251
 252 void pstrcpy(char *buf, int buf_size, const char *str)
 253 {
 254     int c;
 255     char *q = buf;
 256
 257     if (buf_size <= 0)
 258         return;
 259
 260     for(;;) {
 261         c = *str++;
 262         if (c == 0 || q >= buf + buf_size - 1)
 263             break;
 264         *q++ = c;
 265     }
 266     *q = '\0';
 267 }
 268
 269 /* strcat and truncate. */
 270 char *pstrcat(char *buf, int buf_size, const char *s)
 271 {
 272     int len;
 273     len = strlen(buf);
 274     if (len < buf_size)
 275         pstrcpy(buf + len, buf_size - len, s);
 276     return buf;
 277 }
 278
 279 int server_socket(void)
 280 {
 281     int val, fd;
 282     struct sockaddr_in sockaddr;
 283
 284     /* server socket */
 285     fd = chk_error(socket(PF_INET, SOCK_STREAM, 0));
 286
 287     val = 1;
 288     chk_error(setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val)));
 289
 290     sockaddr.sin_family = AF_INET;
 291     sockaddr.sin_port = htons(TESTPORT);
 292     sockaddr.sin_addr.s_addr = 0;
 293     chk_error(bind(fd, (struct sockaddr *)&sockaddr, sizeof(sockaddr)));
 294     chk_error(listen(fd, 0));
 295     return fd;
 296
 297 }
 298
 299 int client_socket(void)
 300 {
 301     int fd;
 302     struct sockaddr_in sockaddr;
 303
 304     /* server socket */
 305     fd = chk_error(socket(PF_INET, SOCK_STREAM, 0));
 306     sockaddr.sin_family = AF_INET;
 307     sockaddr.sin_port = htons(TESTPORT);
 308     inet_aton("127.0.0.1", &sockaddr.sin_addr);
 309     chk_error(connect(fd, (struct sockaddr *)&sockaddr, sizeof(sockaddr)));
 310     return fd;
 311 }
 312
 313 const char socket_msg[] = "hello socket\n";
 314
 315 void test_socket(void)
 316 {
 317     int server_fd, client_fd, fd, pid, ret, val;
 318     struct sockaddr_in sockaddr;
 319     socklen_t len;
 320     char buf[512];
 321
 322     server_fd = server_socket();
 323
 324     /* test a few socket options */
 325     len = sizeof(val);
 326     chk_error(getsockopt(server_fd, SOL_SOCKET, SO_TYPE, &val, &len));
 327     if (val != SOCK_STREAM)
 328         error("getsockopt");
 329
 330     pid = chk_error(fork());
 331     if (pid == 0) {
 332         client_fd = client_socket();
 333         send(client_fd, socket_msg, sizeof(socket_msg), 0);
 334         close(client_fd);
 335         exit(0);
 336     }
 337     len = sizeof(sockaddr);
 338     fd = chk_error(accept(server_fd, (struct sockaddr *)&sockaddr, &len));
 339
 340     ret = chk_error(recv(fd, buf, sizeof(buf), 0));
 341     if (ret != sizeof(socket_msg))
 342         error("recv");
 343     if (memcmp(buf, socket_msg, sizeof(socket_msg)) != 0)
 344         error("socket_msg");
 345     chk_error(close(fd));
 346     chk_error(close(server_fd));
 347 }
 348
 349 #define WCOUNT_MAX 512
 350
 351 void test_pipe(void)
 352 {
 353     fd_set rfds, wfds;
 354     int fds[2], fd_max, ret;
 355     uint8_t ch;
 356     int wcount, rcount;
 357
 358     chk_error(pipe(fds));
 359     chk_error(fcntl(fds[0], F_SETFL, O_NONBLOCK));
 360     chk_error(fcntl(fds[1], F_SETFL, O_NONBLOCK));
 361     wcount = 0;
 362     rcount = 0;
 363     for(;;) {
 364         FD_ZERO(&rfds);
 365         fd_max = fds[0];
 366         FD_SET(fds[0], &rfds);
 367
 368         FD_ZERO(&wfds);
 369         FD_SET(fds[1], &wfds);
 370         if (fds[1] > fd_max)
 371             fd_max = fds[1];
 372
 373         ret = chk_error(select(fd_max + 1, &rfds, &wfds, NULL, NULL));
 374         if (ret > 0) {
 375             if (FD_ISSET(fds[0], &rfds)) {
 376                 chk_error(read(fds[0], &ch, 1));
 377                 rcount++;
 378                 if (rcount >= WCOUNT_MAX)
 379                     break;
 380             }
 381             if (FD_ISSET(fds[1], &wfds)) {
 382                 ch = 'a';
 383                 chk_error(write(fds[0], &ch, 1));
 384                 wcount++;
 385             }
 386         }
 387     }
 388     chk_error(close(fds[0]));
 389     chk_error(close(fds[1]));
 390 }
 391
 392 int thread1_res;
 393 int thread2_res;
 394
 395 int thread1_func(void *arg)
 396 {
 397     int i;
 398     for(i=0;i<5;i++) {
 399         thread1_res++;
 400         usleep(10 * 1000);
 401     }
 402     return 0;
 403 }
 404
 405 int thread2_func(void *arg)
 406 {
 407     int i;
 408     for(i=0;i<6;i++) {
 409         thread2_res++;
 410         usleep(10 * 1000);
 411     }
 412     return 0;
 413 }
 414
 415 void test_clone(void)
 416 {
 417     uint8_t *stack1, *stack2;
 418     int pid1, pid2, status1, status2;
 419
 420     stack1 = malloc(STACK_SIZE);
 421     pid1 = chk_error(clone(thread1_func, stack1 + STACK_SIZE,
 422                            CLONE_VM | CLONE_FS | CLONE_FILES | SIGCHLD, "hello1"));
 423
 424     stack2 = malloc(STACK_SIZE);
 425     pid2 = chk_error(clone(thread2_func, stack2 + STACK_SIZE,
 426                            CLONE_VM | CLONE_FS | CLONE_FILES | SIGCHLD, "hello2"));
 427
 428     while (waitpid(pid1, &status1, 0) != pid1);
 429     free(stack1);
 430     while (waitpid(pid2, &status2, 0) != pid2);
 431     free(stack2);
 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 }