X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fkern%2Fpreempt.c;h=078724b42a8e38095fb93e3c6e226d2e2b5e2d70;hb=e8b0472be10fba4ca6baa62d8d483db90e28c06e;hp=f285d43f5a53c3e3932f3d1d5edca9be072a26d2;hpb=cf6017f59fb2ff71423c716ad9d9f60a1b65c7d0;p=bertos.git

diff --git a/bertos/kern/preempt.c b/bertos/kern/preempt.c
index f285d43f..078724b4 100644
--- a/bertos/kern/preempt.c
+++ b/bertos/kern/preempt.c
@@ -26,118 +26,7 @@
  * invalidate any other reasons why the executable file might be covered by
  * the GNU General Public License.
  *
- * Copyright 2008 Bernie Innocenti <bernie@codewiz.org>
- * -->
- *
- * \brief Simple preemptive multitasking scheduler.
+ * \note This file is deprecated and kept only for backward compatibility.
  *
- * \version $Id: proc.c 1616 2008-08-10 19:41:26Z bernie $
- * \author Bernie Innocenti <bernie@codewiz.org>
+ * -->
  */
-
-#include "proc_p.h"
-#include "proc.h"
-
-#include <kern/irq.h>
-#include <kern/monitor.h>
-#include <cpu/frame.h> // CPU_IDLE
-#include <cpu/irq.h>   // IRQ_DISABLE()...
-#include <drv/timer.h>
-#include <cfg/module.h>
-
-
-int preempt_forbid_cnt;
-
-static Timer preempt_timer;
-
-
-// fwd decl from idle.c
-void idle_init(void);
-
-
-void proc_preempt(void)
-{
-	IRQ_DISABLE;
-
-	ASSERT(preempt_forbid_cnt == 0);
-	LIST_ASSERT_VALID(&ProcReadyList);
-	CurrentProcess = (struct Process *)list_remHead(&ProcReadyList);
-	ASSERT2(CurrentProcess, "no idle proc?");
-
-	IRQ_ENABLE;
-
-	TRACEMSG("launching %p:%s", CurrentProcess, proc_currentName());
-}
-
-void proc_preempt_timer(UNUSED_ARG(void *, param))
-{
-	if (!preempt_forbid_cnt)
-	{
-		IRQ_DISABLE;
-
-		#if CONFIG_KERN_PRI
-			Process *rival = (Process *)LIST_HEAD(&ProcReadyList);
-			if (rival && rival->link.pri >= CurrentProcess->link.pri)
-			{
-		#endif
-
-		TRACEMSG("preempting %p:%s", CurrentProcess, proc_currentName());
-#if 0
-		SCHED_ENQUEUE(CurrentProcess);
-		proc_preempt();
-#endif
-		#if CONFIG_KERN_PRI
-			}
-		#endif
-
-		IRQ_ENABLE;
-	}
-
-	timer_setDelay(&preempt_timer, CONFIG_KERN_QUANTUM);
-	timer_add(&preempt_timer);
-}
-
-void proc_schedule(void)
-{
-	ATOMIC(LIST_ASSERT_VALID(&ProcReadyList));
-	TRACEMSG("%p:%s", CurrentProcess, proc_currentName());
-	ATOMIC(LIST_ASSERT_VALID(&ProcReadyList));
-
-	/* Sleeping with IRQs disabled or preemption forbidden is illegal */
-	ASSERT_IRQ_ENABLED();
-	ASSERT(preempt_forbid_cnt == 0);
-
-	// Will invoke proc_preempt() in interrupt context
-	kill(0, SIGUSR1);
-}
-
-void proc_yield(void)
-{
-	TRACEMSG("%p:%s", CurrentProcess, proc_currentName());
-
-	IRQ_DISABLE;
-	SCHED_ENQUEUE(CurrentProcess);
-	IRQ_ENABLE;
-
-	proc_schedule();
-}
-
-void proc_entry(void (*user_entry)(void))
-{
-	user_entry();
-	proc_exit();
-}
-
-void preempt_init(void)
-{
-	MOD_CHECK(irq);
-	MOD_CHECK(timer);
-
-	irq_register(SIGUSR1, proc_preempt);
-
-	timer_setSoftint(&preempt_timer, proc_preempt_timer, NULL);
-	timer_setDelay(&preempt_timer, CONFIG_KERN_QUANTUM);
-	timer_add(&preempt_timer);
-
-	idle_init();
-}