X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=src%2Fthreads%2Fthread.h;h=1dfde5ac9b03867f94a545f08cc2a7bb2ac83435;hb=5fbedf1d20c2b2f2dbc8c7ebd64cc7b4812a44bf;hp=5cfbadfbfb303bc2fbb69ecf6a72e85732803dbc;hpb=6bae0ee083ed3ef0a1df7e892c6509e47a0ad2dc;p=pintos-anon

diff --git a/src/threads/thread.h b/src/threads/thread.h
index 5cfbadf..1dfde5a 100644
--- a/src/threads/thread.h
+++ b/src/threads/thread.h
@@ -19,20 +19,26 @@ enum thread_status
 
 struct thread 
   {
+    /* These members are owned by the thread_*() functions. */
     enum thread_status status;          /* Thread state. */
     char name[16];                      /* Name (for debugging purposes). */
     uint8_t *stack;                     /* Saved stack pointer. */
     list_elem rq_elem;                  /* Run queue list element. */
+
 #ifdef USERPROG
-    struct addrspace addrspace;         /* Userland address space. */
+    /* These members are owned by the addrspace_*() functions. */
+    uint32_t *pagedir;                  /* Page directory. */
 #endif
+    
+    /* Marker to detect stack overflow. */
     unsigned magic;                     /* Always set to THREAD_MAGIC. */
   };
 
 void thread_init (void);
 void thread_start (void) NO_RETURN;
 
-struct thread *thread_create (const char *name, void (*) (void *aux), void *);
+typedef void thread_func (void *aux);
+struct thread *thread_create (const char *name, thread_func *, void *);
 #ifdef USERPROG
 bool thread_execute (const char *filename);
 #endif