foofs.fist

Solaris操作系统下的过滤驱动程序, C源码程序.

// this file sample file for testing the fistgen parser
// a comment
debug on;
filter name;
accessmode readwrite;
errorcode EOKKEY;
errorcode EBADKEY;
fanout 2;
mntdata {
  int Xfoo1;
  char Xfoo2;
};
pervfs {
  int key;
  char foo3;
};
pervnode { int foo3; };
fileformat fName { int foo4; };
ioctl firstI { int foo5; };
ioctl:touser secondI
 {
  int x;
  struct foo bar;
  char s[10];
  char t[MAX];
  struct bar foo[10];
  struct bar baz[MAX];
};
mntflag MNT_COMPRESS;
fsname foofs;
mntflag MNT_BZIP;
mntflag MNT_GZIP;
mntstyle regular;
%%

%op:all:call { foo ; }

%op:all:precall { bar() ; }

%op:all:postcall { foozball ; }

%ops:unlink:call
{
  int i = %gid / fistBar (3.14, 17, 18);
  int j = fistFoo(arg1, %uid);
  /* EZK: this is a %uid $1 comment -Erez */
  vnode_t *vp = $dir:0;
  j++ ;
}

%op:write:postcall {
  int i = %gid + %uid;
  {
    int j = $this:0;
    char *cp = "this is a %uid quote that is not munged";
    j++ ;
  }
}

%ops:unlink:precall {
  j++ ;
}

%%
void
dummy_fxn(void)
{
  printf("dummy function called: %d...\n", fistFoo());
  err = fistBar(x, b);
  printf("dummy function called: %d...\n", %gid);
  printf("dummy function called: %d...\n", %gid);
  printf("dummy function called: %d...\n", %gid);
  printf("dummy function $0 called: %d...\n", %gid);
  printf("dummy function called: %d...\n", %gid);
  printf("dummy function called: %d...\n", %uid);
  printf("also %d...\n", $this);
$0
$this:0
$2
$dir:0
  /*
   * this is a multi-line %gid
   * comment... l2 $dir
   */
$dir
$dir.foo3
$1.name
$vfs
$from:2.name
$from:2
$vfs:2.key
  /* $dir.key */
}