no more proc[] entry per cpu for idle loop

each cpu[] has its own gdt and tss
no per-proc gdt or tss, re-write cpu's in scheduler (you win, cliff)
main0() switches to cpu[0].mpstack

1 files changed, 0 insertions, 294 deletions

diff --git a/usertests.c b/usertests.c
index c3e9113..20155c2 100644
--- a/usertests.c
+++ b/usertests.c
@@ -115,305 +115,11 @@ exitwait(void)
   puts("exitwait ok\n");
 }
 
-// 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, "usertests: 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, "usertests: write sharedfd failed\n");
-      break;
-    }
-  }
-  if(pid == 0)
-    exit();
-  else
-    wait();
-  close(fd);
-  fd = open("sharedfd", 0);
-  if(fd < 0){
-    printf(1, "usertests: 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)
-    wait();
-  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);
-    } else if((i >= 1 && i < n/2) && fd >= 0){
-      printf(1, "oops createdelete %s did exist\n", name);
-    }
-    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);
-    } else if((i >= 1 && i < n/2) && fd >= 0){
-      printf(1, "oops createdelete %s did exist\n", name);
-    }
-    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("xxx", 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("xxx");
-  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");
-}
-
 int
 main(int argc, char *argv[])
 {
   puts("usertests starting\n");
 
-  linktest();
-  unlinkread();
-  createdelete();
-  twofiles();
-  sharedfd();
   pipe1();
   preempt();
   exitwait();