#include <stdio.h>
#include "SpeTask.h"
#include "SpeTaskList.h"
#include "SpeNop2Ready.h"
#include "DmaManager.h"
#include "error.h"
#include "TaskManager.h"
#include "SymTable.h"

SymTable *TaskManager::symtb;

SpeTask::SpeTask(TaskListPtr _list, TaskPtr _task, void *rbuf, void *wbuf,
		 DmaManager* cn)
{
    list = _list;
    task = _task;
    readbuf = rbuf;
    writebuf = wbuf;
    connector = cn;
}

void
SpeTask::read(void)
{    
    __debug("SpeTask::read()");

    //task = &list->tasks[--list->length];
    connector->dma_load(readbuf, task->in_addr, task->in_size, DMA_READ);
}

void
SpeTask::exec(void)
{
    __debug("SpeTask::exec()");

    connector->dma_wait(DMA_READ);

#ifdef DEBUG
    printf("  task->command  = %d\n", task->command);
    printf("  task->in_size  = %d\n", task->in_size);
    printf("  task->in_addr  = 0x%x\n", task->in_addr);
    printf("  task->out_addr = 0x%x\n", task->out_addr);
    printf("  list->next   = 0x%x\n", (unsigned int)list->next);
    printf("  list->length = 0x%x\n", (unsigned int)list->length);
#endif

    // obsolute
    //   task->in_size = func_list[task->command](writebuf, readbuf);

    // ごちゃごちゃしてるな
    // 最初から void* じゃなくて 関数ポインタ としていれるべきか？
    int (*func)(void*, void*)
	= (int (*)(void*,void*))TaskManager::get_address(task->command);
    task->in_size = func(writebuf, readbuf);
    connector->dma_store(writebuf, task->out_addr, task->in_size, DMA_WRITE);
}

void
SpeTask::write(void)
{
    __debug("SpeTask::write()");

    connector->dma_wait(DMA_WRITE);
    connector->mail_write((unsigned int)task->self);
}

SpeTaskBase*
SpeTask::next(SpeManager *m, SpeTaskBase *p)
{
    __debug("SpeTask::next()");

    delete p;
 
    // ここ直さねば。どうやって if 文消そう？
    // オブジェクト増やせばいいのかな
    if (list->length == 0) {
	if (list->next == 0) {
	    return new SpeNop2Ready(connector);
	} else {
	    return new SpeTaskList((unsigned int)list->next,
				   m->get_curListBuf(), connector);
	}
    } else {
	//return new SpeTask(list, m->get_curReadBuf(),
	//m->get_curWriteBuf(), connector);

	// 本当は、ここで task->command に対応する、
	// SpeTask を継承する class を作ればいい。。。はず
	return new SpeTask(list, &list->tasks[--list->length],
			   m->get_curReadBuf(), m->get_curWriteBuf(),
			   connector);
    }
}

#if 0
SpeTask
createSpeTask(TaskListPtr list, void *rbuf, void *wbuf, DmaManager *cn)
{
    TaskPtr task;

    task = &list->tasks[--list->length];
    
}
#endif