priority-donate-multiple.c File Reference

#include <stdio.h>
#include "tests/threads/tests.h"
#include "threads/init.h"
#include "threads/synch.h"
#include "threads/thread.h"

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Functions
void	test_priority_donate_multiple (void)
static void	a_thread_func (void *lock_)
static void	b_thread_func (void *lock_)

Variables
static thread_func	a_thread_func
	The main thread acquires locks A and B, then it creates two higher-priority threads. More...
static thread_func	b_thread_func

Function Documentation

a_thread_func()

static void a_thread_func ( void *  lock_ )

static

Definition at line 58 of file priority-donate-multiple.c.

References lock_acquire(), lock_release(), and msg().

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b_thread_func()

static void b_thread_func ( void *  lock_ )

static

Definition at line 69 of file priority-donate-multiple.c.

References lock_acquire(), lock_release(), and msg().

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test_priority_donate_multiple()

void test_priority_donate_multiple

(

void

)

Definition at line 22 of file priority-donate-multiple.c.

References a_thread_func, ASSERT, b_thread_func, lock_acquire(), lock_init(), lock_release(), msg(), PRI_DEFAULT, thread_create(), thread_get_priority(), and thread_mlfqs.

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Variable Documentation

a_thread_func

thread_func a_thread_func

static

The main thread acquires locks A and B, then it creates two higher-priority threads.

Each of these threads blocks acquiring one of the locks and thus donate their priority to the main thread. The main thread releases the locks in turn and relinquishes its donated priorities.

Based on a test originally submitted for Stanford's CS 140 in winter 1999 by Matt Franklin start.nosp@m.led@.nosp@m.lelan.nosp@m.d.st.nosp@m.anfor.nosp@m.d.ed.nosp@m.u, Greg Hutchins gmh@l.nosp@m.elan.nosp@m.d.sta.nosp@m.nfor.nosp@m.d.edu, Yu Ping Hu yph@c.nosp@m.s.st.nosp@m.anfor.nosp@m.d.ed.nosp@m.u. Modified by arens.

Definition at line 18 of file priority-donate-multiple.c.

Referenced by test_priority_donate_multiple().

b_thread_func

thread_func b_thread_func

static

Definition at line 19 of file priority-donate-multiple.c.

Referenced by test_priority_donate_multiple().