one regression test program

1 files changed, 0 insertions, 685 deletions

diff --git a/fstests.c b/fstests.c
deleted file mode 100644
index 4956437..0000000
--- a/fstests.c
+++ /dev/null
@@ -1,685 +0,0 @@
-#include "types.h"
-#include "stat.h"
-#include "user.h"
-#include "fcntl.h"
-
-char buf[512];
-
-// two processes write to the same file descriptor
-// is the offset shared? does inode locking work?
-void
-sharedfd()
-{
-  int fd, pid, i, n, nc, np;
-  char buf[10];
-
-  unlink("sharedfd");
-  fd = open("sharedfd", O_CREATE|O_RDWR);
-  if(fd < 0){
-    printf(1, "fstests: cannot open sharedfd for writing");
-    return;
-  }
-  pid = fork();
-  memset(buf, pid==0?'c':'p', sizeof(buf));
-  for(i = 0; i < 100; i++){
-    if(write(fd, buf, sizeof(buf)) != sizeof(buf)){
-      printf(1, "fstests: write sharedfd failed\n");
-      break;
-    }
-  }
-  if(pid == 0)
-    exit();
-  else
-    wait();
-  close(fd);
-  fd = open("sharedfd", 0);
-  if(fd < 0){
-    printf(1, "fstests: cannot open sharedfd for reading\n");
-    return;
-  }
-  nc = np = 0;
-  while((n = read(fd, buf, sizeof(buf))) > 0){
-    for(i = 0; i < sizeof(buf); i++){
-      if(buf[i] == 'c')
-        nc++;
-      if(buf[i] == 'p')
-        np++;
-    }
-  }
-  close(fd);
-  unlink("sharedfd");
-  if(nc == 1000 && np == 1000)
-    printf(1, "sharedfd ok\n");
-  else
-    printf(1, "sharedfd oops %d %d\n", nc, np);
-}
-
-// two processes write two different files at the same
-// time, to test block allocation.
-void
-twofiles()
-{
-  int fd, pid, i, j, n, total;
-  char *fname;
-
-  unlink("f1");
-  unlink("f2");
-
-  pid = fork();
-  if(pid < 0){
-    puts("fork failed\n");
-    return;
-  }
-
-  fname = pid ? "f1" : "f2";
-  fd = open(fname, O_CREATE | O_RDWR);
-  if(fd < 0){
-    puts("create failed\n");
-    exit();
-  }
-
-  memset(buf, pid?'p':'c', 512);
-  for(i = 0; i < 12; i++){
-    if((n = write(fd, buf, 500)) != 500){
-      printf(1, "write failed %d\n", n);
-      exit();
-    }
-  }
-  close(fd);
-  if(pid)
-    wait();
-  else
-    exit();
-
-  for(i = 0; i < 2; i++){
-    fd = open(i?"f1":"f2", 0);
-    total = 0;
-    while((n = read(fd, buf, sizeof(buf))) > 0){
-      for(j = 0; j < n; j++){
-        if(buf[j] != (i?'p':'c')){
-          puts("wrong char\n");
-          exit();
-        }
-      }
-      total += n;
-    }
-    close(fd);
-    if(total != 12*500){
-      printf(1, "wrong length %d\n", total);
-      exit();
-    }
-  }
-
-  unlink("f1");
-  unlink("f2");
-
-  puts("twofiles ok\n");
-}
-
-// two processes create and delete files in same directory
-void
-createdelete()
-{
-  int pid, i, fd;
-  int n = 20;
-  char name[32];
-
-  pid = fork();
-  if(pid < 0){
-    puts("fork failed\n");
-    exit();
-  }
-
-  name[0] = pid ? 'p' : 'c';
-  name[2] = '\0';
-  for(i = 0; i < n; i++){
-    name[1] = '0' + i;
-    fd = open(name, O_CREATE | O_RDWR);
-    if(fd < 0){
-      puts("create failed\n");
-      exit();
-    }
-    close(fd);
-    if(i > 0 && (i % 2 ) == 0){
-      name[1] = '0' + (i / 2);
-      if(unlink(name) < 0){
-        puts("unlink failed\n");
-        exit();
-      }
-    }
-  }
-
-  if(pid)
-    exit();
-  else
-    exit();
-
-  for(i = 0; i < n; i++){
-    name[0] = 'p';
-    name[1] = '0' + i;
-    fd = open(name, 0);
-    if((i == 0 || i >= n/2) && fd < 0){
-      printf(1, "oops createdelete %s didn't exist\n", name);
-      exit();
-    } else if((i >= 1 && i < n/2) && fd >= 0){
-      printf(1, "oops createdelete %s did exist\n", name);
-      exit();
-    }
-    if(fd >= 0)
-      close(fd);
-
-    name[0] = 'c';
-    name[1] = '0' + i;
-    fd = open(name, 0);
-    if((i == 0 || i >= n/2) && fd < 0){
-      printf(1, "oops createdelete %s didn't exist\n", name);
-      exit();
-    } else if((i >= 1 && i < n/2) && fd >= 0){
-      printf(1, "oops createdelete %s did exist\n", name);
-      exit();
-    }
-    if(fd >= 0)
-      close(fd);
-  }
-
-  for(i = 0; i < n; i++){
-    name[0] = 'p';
-    name[1] = '0' + i;
-    unlink(name);
-    name[0] = 'c';
-    unlink(name);
-  }
-
-  printf(1, "createdelete ok\n");
-}
-
-// can I unlink a file and still read it?
-void
-unlinkread()
-{
-  int fd, fd1;
-
-  fd = open("unlinkread", O_CREATE | O_RDWR);
-  if(fd < 0){
-    puts("create unlinkread failed\n");
-    exit();
-  }
-  write(fd, "hello", 5);
-  close(fd);
-
-  fd = open("unlinkread", O_RDWR);
-  if(fd < 0){
-    puts("open unlinkread failed\n");
-    exit();
-  }
-  if(unlink("unlinkread") != 0){
-    puts("unlink unlinkread failed\n");
-    exit();
-  }
-
-  fd1 = open("unlinkread", O_CREATE | O_RDWR);
-  write(fd1, "yyy", 3);
-  close(fd1);
-
-  if(read(fd, buf, sizeof(buf)) != 5){
-    puts("unlinkread read failed");
-    exit();
-  }
-  if(buf[0] != 'h'){
-    puts("unlinkread wrong data\n");
-    exit();
-  }
-  if(write(fd, buf, 10) != 10){
-    puts("unlinkread write failed\n");
-    exit();
-  }
-  close(fd);
-  unlink("unlinkread");
-  puts("unlinkread ok\n");
-}
-
-void
-linktest()
-{
-  int fd;
-
-  unlink("lf1");
-  unlink("lf2");
-
-  fd = open("lf1", O_CREATE|O_RDWR);
-  if(fd < 0){
-    puts("create lf1 failed\n");
-    exit();
-  }
-  if(write(fd, "hello", 5) != 5){
-    puts("write lf1 failed\n");
-    exit();
-  }
-  close(fd);
-
-  if(link("lf1", "lf2") < 0){
-    puts("link lf1 lf2 failed\n");
-    exit();
-  }
-  unlink("lf1");
-
-  if(open("lf1", 0) >= 0){
-    puts("unlinked lf1 but it is still there!\n");
-    exit();
-  }
-
-  fd = open("lf2", 0);
-  if(fd < 0){
-    puts("open lf2 failed\n");
-    exit();
-  }
-  if(read(fd, buf, sizeof(buf)) != 5){
-    puts("read lf2 failed\n");
-    exit();
-  }
-  close(fd);
-
-  if(link("lf2", "lf2") >= 0){
-    puts("link lf2 lf2 succeeded! oops\n");
-    exit();
-  }
-
-  unlink("lf2");
-  if(link("lf2", "lf1") >= 0){
-    puts("link non-existant succeeded! oops\n");
-    exit();
-  }
-
-  if(link(".", "lf1") >= 0){
-    puts("link . lf1 succeeded! oops\n");
-    exit();
-  }
-
-  puts("linktest ok\n");
-}
-
-// test concurrent create of the same file
-void
-concreate()
-{
-  char file[3];
-  int i, pid, n, fd;
-  char fa[40];
-  struct {
-    unsigned short inum;
-    char name[14];
-  } de;
-
-  file[0] = 'C';
-  file[2] = '\0';
-  for(i = 0; i < 40; i++){
-    file[1] = '0' + i;
-    unlink(file);
-    pid = fork();
-    if(pid && (i % 3) == 1){
-      link("C0", file);
-    } else if(pid == 0 && (i % 5) == 1){
-      link("C0", file);
-    } else {
-      fd = open(file, O_CREATE | O_RDWR);
-      if(fd < 0){
-        printf(1, "concreate create %s failed\n", file);
-        exit();
-      }
-      close(fd);
-    }
-    if(pid == 0)
-      exit();
-    else
-      wait();
-  }
-
-  memset(fa, 0, sizeof(fa));
-  fd = open(".", 0);
-  n = 0;
-  while(read(fd, &de, sizeof(de)) > 0){
-    if(de.inum == 0)
-      continue;
-    if(de.name[0] == 'C' && de.name[2] == '\0'){
-      i = de.name[1] - '0';
-      if(i < 0 || i >= sizeof(fa)){
-        printf(1, "concreate weird file %s\n", de.name);
-        exit();
-      }
-      if(fa[i]){
-        printf(1, "concreate duplicate file %s\n", de.name);
-        exit();
-      }
-      fa[i] = 1;
-      n++;
-    }
-  }
-  close(fd);
-
-  if(n != 40){
-    puts("concreate not enough files in directory listing\n");
-    exit();
-  }
-
-  for(i = 0; i < 40; i++){
-    file[1] = '0' + i;
-    unlink(file);
-  }
-
-  puts("concreate ok\n");
-}
-
-// directory that uses indirect blocks
-void
-bigdir()
-{
-  int i, fd;
-  char name[10];
-
-  unlink("bd");
-
-  fd = open("bd", O_CREATE);
-  if(fd < 0){
-    puts("bigdir create failed\n");
-    exit();
-  }
-  close(fd);
-
-  for(i = 0; i < 500; i++){
-    name[0] = 'x';
-    name[1] = '0' + (i / 64);
-    name[2] = '0' + (i % 64);
-    name[3] = '\0';
-    if(link("bd", name) != 0){
-      puts("bigdir link failed\n");
-      exit();
-    }
-    puts("c");
-  }
-
-  unlink("bd");
-  for(i = 0; i < 500; i++){
-    name[0] = 'x';
-    name[1] = '0' + (i / 64);
-    name[2] = '0' + (i % 64);
-    name[3] = '\0';
-    if(unlink(name) != 0){
-      puts("bigdir unlink failed");
-      exit();
-    }
-    puts("d");
-  }
-
-  puts("bigdir ok\n");
-}
-
-void
-subdir()
-{
-  int fd, cc;
-
-  unlink("ff");
-  if(mkdir("dd") != 0){
-    puts("subdir mkdir dd failed\n");
-    exit();
-  }
-
-  fd = open("dd/ff", O_CREATE | O_RDWR);
-  if(fd < 0){
-    puts("create dd/ff failed\n");
-    exit();
-  }
-  write(fd, "ff", 2);
-  close(fd);
-
-  if(mkdir("/dd/dd") != 0){
-    puts("subdir mkdir dd/dd failed\n");
-    exit();
-  }
-
-  fd = open("dd/dd/ff", O_CREATE | O_RDWR);
-  if(fd < 0){
-    puts("create dd/dd/ff failed\n");
-    exit();
-  }
-  write(fd, "FF", 2);
-  close(fd);
-
-  fd = open("dd/dd/../ff", 0);
-  if(fd < 0){
-    puts("open dd/dd/../ff failed\n");
-    exit();
-  }
-  cc = read(fd, buf, sizeof(buf));
-  if(cc != 2 || buf[0] != 'f'){
-    puts("dd/dd/../ff wrong content\n");
-    exit();
-  }
-  close(fd);
-
-  if(link("dd/dd/ff", "dd/dd/ffff") != 0){
-    puts("link dd/dd/ff dd/dd/ffff failed\n");
-    exit();
-  }
-
-  if(unlink("dd/dd/ff") != 0){
-    puts("unlink dd/dd/ff failed\n");
-    exit();
-  }
-
-  if(chdir("dd") != 0){
-    puts("chdir dd failed\n");
-    exit();
-  }
-  if(chdir("dd/../../dd") != 0){
-    puts("chdir dd/../../dd failed\n");
-    exit();
-  }
-  if(chdir("./..") != 0){
-    puts("chdir ./.. failed\n");
-    exit();
-  }
-
-  fd = open("dd/dd/ffff", 0);
-  if(fd < 0){
-    puts("open dd/dd/ffff failed\n");
-    exit();
-  }
-  if(read(fd, buf, sizeof(buf)) != 2){
-    puts("read dd/dd/ffff wrong len\n");
-    exit();
-  }
-  close(fd);
-
-  if(open("dd/dd/ff", 0) >= 0){
-    puts("open dd/dd/ff succeeded!\n");
-    exit();
-  }
-
-  if(open("dd/ff/ff", O_CREATE|O_RDWR) >= 0){
-    puts("create dd/ff/ff succeeded!\n");
-    exit();
-  }
-  if(open("dd/xx/ff", O_CREATE|O_RDWR) >= 0){
-    puts("create dd/xx/ff succeeded!\n");
-    exit();
-  }
-  if(open("dd", O_CREATE) >= 0){
-    puts("create dd succeeded!\n");
-    exit();
-  }
-  if(open("dd", O_RDWR) >= 0){
-    puts("open dd rdwr succeeded!\n");
-    exit();
-  }
-  if(open("dd", O_WRONLY) >= 0){
-    puts("open dd wronly succeeded!\n");
-    exit();
-  }
-  if(link("dd/ff/ff", "dd/dd/xx") == 0){
-    puts("link dd/ff/ff dd/dd/xx succeeded!\n");
-    exit();
-  }
-  if(link("dd/xx/ff", "dd/dd/xx") == 0){
-    puts("link dd/xx/ff dd/dd/xx succeeded!\n");
-    exit();
-  }
-  if(link("dd/ff", "dd/dd/ffff") == 0){
-    puts("link dd/ff dd/dd/ffff succeeded!\n");
-    exit();
-  }
-  if(mkdir("dd/ff/ff") == 0){
-    puts("mkdir dd/ff/ff succeeded!\n");
-    exit();
-  }
-  if(mkdir("dd/xx/ff") == 0){
-    puts("mkdir dd/xx/ff succeeded!\n");
-    exit();
-  }
-  if(mkdir("dd/dd/ffff") == 0){
-    puts("mkdir dd/dd/ffff succeeded!\n");
-    exit();
-  }
-  if(unlink("dd/xx/ff") == 0){
-    puts("unlink dd/xx/ff succeeded!\n");
-    exit();
-  }
-  if(unlink("dd/ff/ff") == 0){
-    puts("unlink dd/ff/ff succeeded!\n");
-    exit();
-  }
-  if(chdir("dd/ff") == 0){
-    puts("chdir dd/ff succeeded!\n");
-    exit();
-  }
-  if(chdir("dd/xx") == 0){
-    puts("chdir dd/xx succeeded!\n");
-    exit();
-  }
-
-  if(unlink("dd/dd/ffff") != 0){
-    puts("unlink dd/dd/ff failed\n");
-    exit();
-  }
-  if(unlink("dd/ff") != 0){
-    puts("unlink dd/ff failed\n");
-    exit();
-  }
-
-  // unlink dd/dd
-  // unlink dd
-
-  puts("subdir ok\n");
-}
-
-void
-bigfile()
-{
-  int fd, i, total, cc;
-
-  unlink("bigfile");
-  fd = open("bigfile", O_CREATE | O_RDWR);
-  if(fd < 0){
-    puts("cannot create bigfile");
-    exit();
-  }
-  for(i = 0; i < 20; i++){
-    memset(buf, i, 600);
-    if(write(fd, buf, 600) != 600){
-      puts("write bigfile failed\n");
-      exit();
-    }
-  }
-  close(fd);
-
-  fd = open("bigfile", 0);
-  if(fd < 0){
-    puts("cannot open bigfile\n");
-    exit();
-  }
-  total = 0;
-  for(i = 0; ; i++){
-    cc = read(fd, buf, 300);
-    if(cc < 0){
-      puts("read bigfile failed\n");
-      exit();
-    }
-    if(cc == 0)
-      break;
-    if(cc != 300){
-      puts("short read bigfile\n");
-      exit();
-    }
-    if(buf[0] != i/2 || buf[299] != i/2){
-      puts("read bigfile wrong data\n");
-      exit();
-    }
-    total += cc;
-  }
-  close(fd);
-  if(total != 20*600){
-    puts("read bigfile wrong total\n");
-    exit();
-  }
-  unlink("bigfile");
-
-  puts("bigfile ok\n");
-}
-
-void
-fourteen()
-{
-  int fd;
-
-  if(mkdir("12345678901234") != 0){
-    puts("mkdir 12345678901234 failed\n");
-    exit();
-  }
-  if(mkdir("12345678901234/123456789012345") != 0){
-    puts("mkdir 12345678901234/123456789012345 failed\n");
-    exit();
-  }
-  fd = open("123456789012345/123456789012345/123456789012345", O_CREATE);
-  if(fd < 0){
-    puts("create 123456789012345/123456789012345/123456789012345 failed\n");
-    exit();
-  }
-  close(fd);
-  fd = open("12345678901234/12345678901234/12345678901234", 0);
-  if(fd < 0){
-    puts("open 12345678901234/12345678901234/12345678901234 failed\n");
-    exit();
-  }
-  close(fd);
-
-  if(mkdir("12345678901234/12345678901234") == 0){
-    puts("mkdir 12345678901234/12345678901234 succeeded!\n");
-    exit();
-  }
-  if(mkdir("123456789012345/12345678901234") == 0){
-    puts("mkdir 12345678901234/123456789012345 succeeded!\n");
-    exit();
-  }
-
-  puts("fourteen ok\n");
-}
-
-int
-main(int argc, char *argv[])
-{
-  puts("fstests starting\n");
-
-  fourteen();
-  bigfile();
-  subdir();
-  // bigdir(); // slow
-  concreate();
-  linktest();
-  unlinkread();
-  createdelete();
-  twofiles();
-  sharedfd();
-
-  puts("fstests finished\n");
-  exit();
-}