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random: Fix behavior of kernel option "-rs".
[pintos-anon]
/
src
/
threads
/
thread.h
diff --git
a/src/threads/thread.h
b/src/threads/thread.h
index 56b84a7dbff4018afa816fd324ff02eb8dbcc675..7965c0607815eab3275da7babdf669177f18c8e2 100644
(file)
--- a/
src/threads/thread.h
+++ b/
src/threads/thread.h
@@
-5,10
+5,6
@@
#include <list.h>
#include <stdint.h>
#include <list.h>
#include <stdint.h>
-#ifdef USERPROG
-#include "userprog/addrspace.h"
-#endif
-
/* States in a thread's life cycle. */
enum thread_status
{
/* States in a thread's life cycle. */
enum thread_status
{
@@
-25,8
+21,8
@@
typedef int tid_t;
/* Thread priorities. */
#define PRI_MIN 0 /* Lowest priority. */
/* Thread priorities. */
#define PRI_MIN 0 /* Lowest priority. */
-#define PRI_DEFAULT
29
/* Default priority. */
-#define PRI_MAX
59
/* Highest priority. */
+#define PRI_DEFAULT
31
/* Default priority. */
+#define PRI_MAX
63
/* Highest priority. */
/* A kernel thread or user process.
/* A kernel thread or user process.
@@
-51,11
+47,11
@@
typedef int tid_t;
| |
| |
+---------------------------------+
| |
| |
+---------------------------------+
- |
magic
|
- |
:
|
- |
:
|
- |
name
|
- |
status
|
+ |
magic
|
+ |
:
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+ |
:
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+ |
name
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+ |
status
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0 kB +---------------------------------+
The upshot of this is twofold:
0 kB +---------------------------------+
The upshot of this is twofold:
@@
-70,7
+66,7
@@
typedef int tid_t;
large. If a stack overflows, it will corrupt the thread
state. Thus, kernel functions should not allocate large
structures or arrays as non-static local variables. Use
large. If a stack overflows, it will corrupt the thread
state. Thus, kernel functions should not allocate large
structures or arrays as non-static local variables. Use
- dynamic allocation with malloc() or palloc_get()
+ dynamic allocation with malloc() or palloc_get
_page
()
instead.
The first symptom of either of these problems will probably be
instead.
The first symptom of either of these problems will probably be
@@
-92,42
+88,54
@@
struct thread
char name[16]; /* Name (for debugging purposes). */
uint8_t *stack; /* Saved stack pointer. */
int priority; /* Priority. */
char name[16]; /* Name (for debugging purposes). */
uint8_t *stack; /* Saved stack pointer. */
int priority; /* Priority. */
+ struct list_elem allelem; /* List element for all threads list. */
/* Shared between thread.c and synch.c. */
/* Shared between thread.c and synch.c. */
-
list_elem elem;
/* List element. */
+
struct list_elem elem;
/* List element. */
#ifdef USERPROG
#ifdef USERPROG
- /* Owned by userprog/
addrspace
.c. */
+ /* Owned by userprog/
process
.c. */
uint32_t *pagedir; /* Page directory. */
#endif
uint32_t *pagedir; /* Page directory. */
#endif
- /* Owned by thread.c */
+ /* Owned by thread.c
.
*/
unsigned magic; /* Detects stack overflow. */
};
unsigned magic; /* Detects stack overflow. */
};
+/* If false (default), use round-robin scheduler.
+ If true, use multi-level feedback queue scheduler.
+ Controlled by kernel command-line option "-o mlfqs". */
+extern bool thread_mlfqs;
+
void thread_init (void);
void thread_start (void);
void thread_init (void);
void thread_start (void);
+void thread_tick (void);
+void thread_print_stats (void);
+
typedef void thread_func (void *aux);
tid_t thread_create (const char *name, int priority, thread_func *, void *);
typedef void thread_func (void *aux);
tid_t thread_create (const char *name, int priority, thread_func *, void *);
-#ifdef USERPROG
-tid_t thread_execute (const char *filename);
-#endif
+void thread_block (void);
void thread_unblock (struct thread *);
struct thread *thread_current (void);
tid_t thread_tid (void);
const char *thread_name (void);
void thread_unblock (struct thread *);
struct thread *thread_current (void);
tid_t thread_tid (void);
const char *thread_name (void);
+
void thread_exit (void) NO_RETURN;
void thread_yield (void);
void thread_exit (void) NO_RETURN;
void thread_yield (void);
-void thread_block (void);
-/* This function will be implemented in problem 1-2. */
-void thread_join (tid_t);
+/* Performs some operation on thread t, given auxiliary data AUX. */
+typedef void thread_action_func (struct thread *t, void *aux);
+void thread_foreach (thread_action_func *, void *);
-/* These functions will be implemented in problem 1-3. */
-void thread_set_priority (int);
int thread_get_priority (void);
int thread_get_priority (void);
+void thread_set_priority (int);
+
+int thread_get_nice (void);
+void thread_set_nice (int);
+int thread_get_recent_cpu (void);
+int thread_get_load_avg (void);
#endif /* threads/thread.h */
#endif /* threads/thread.h */