void algo8_2_main()
{
int i,n;
FreeList a;
Space q[N]={NULL}; // q数组为占用块的首地址
printf("sizeof(WORD)=%u m=%u int(pow(2,m))=%u\n",sizeof(WORD),m,int(pow(2,m)));
for(i=0;i<=m;i++) // 初始化a
{
a[i].nodesize=int(pow(2,i));
a[i].first=NULL;
}
r=a[m].first=new WORD[a[m].nodesize]; // 在最大链表中生成一个结点
if(r) // 生成结点成功
{
r->llink=r->rlink=r; // 初始化该结点
r->tag=0;
r->kval=m;
Print(a);
PrintUser(q);
n=100;
q[0]=AllocBuddy(a,n); // 向a申请100个WORD的内存(实际获得128个WORD)
printf("申请%d个字后，可利用空间为:\n",n);
Print(a);
PrintUser(q);
n=200;
q[1]=AllocBuddy(a,n); // 向a申请200个WORD的内存(实际获得256个WORD)
printf("申请%d个字又",n);
n=220;
q[2]=AllocBuddy(a,n); // 向a申请220个WORD的内存(实际获得256个WORD)
printf("申请%d个字后，可利用空间为:\n",n);
Print(a);
PrintUser(q);
Reclaim(a,q[1]); // 回收q[1]，伙伴不空闲
printf("回收q[1]后，可利用空间为:\n");
Print(a);
PrintUser(q);
Reclaim(a,q[0]); // 回收q[0]，伙伴空闲
printf("回收q[0]后，可利用空间为:\n");
Print(a);
PrintUser(q);
Reclaim(a,q[2]); // 回收q[2]，伙伴空闲，生成一个大结点
printf("回收q[2]后，可利用空间为:\n");
Print(a);
PrintUser(q);
}
else
printf("ERROR\n");
}
int acoral_link_app(App_Info appInfo)
{
struct file *fp; //file pointer
mm_segment_t old_fs;
loff_t pos = 0;
void __iomem *add; //temp address
unsigned int file_len = 0; //file length
int index; //which appMemInfo
struct timeval start,stop;
//App_para *para;
WORD_b *app_blk = 0; //store app.o
WORD_b *para_blk = 0; //store app para struct
WORD_b *ret_blk = 0; //store app return value
do_gettimeofday(&start);
//App_Info appInfo = appInfo_t;
//printk("filename:%s\n", appInfo.filename);
//printk("para:%x\n", appInfo.para);
//printk("ret:%x\n", appInfo.ret);
//printk("parasize:%d\n",appInfo.parasize);
//printk("acoral enter\n");
fp = filp_open(appInfo.filename, O_RDONLY , 0644);
if (IS_ERR(fp)) {
printk("create file error\n");
return -1;
}
old_fs = get_fs(); //get_fs是取得当前的地址访问限制值
set_fs(KERNEL_DS); //set_fs是设置当前的地址访问限制值 KERNEL_DS会跳过地址检查
file_len = vfs_llseek(fp, 0, SEEK_END);//get file length
/*find free appMemInfo struct*/
local_irq_disable();
while((index = find_and_set_bit_appMemInfo(appMemInfo_bitmap)) < 0);
local_irq_enable();
printk("index: %d\n", index);
app_blk = AllocBuddy(AllList, file_len);
if(app_blk == 0)
{
printk("alloc error\n");
return -1;
}
para_blk = AllocBuddy(AllList, appInfo.parasize);
if(para_blk == 0)
{
printk("para_blk error\n");
return -1;
}
ret_blk = AllocBuddy(AllList, appInfo.retsize);
if(ret_blk == 0)
{
printk("ret_blk error\n");
return -1;
}
//translate the virtuel address to physical address
memcpy(para_blk->addr, appInfo.para, appInfo.parasize);
appMemInfo[index].addr = app_blk->addr - first_blk_phy + ALLOC_MEM_START;//virt_to_bus(blk->addr);
appMemInfo[index].para = para_blk->addr - first_blk_phy + ALLOC_MEM_START;//virt_to_bus(para_blk->addr);
appMemInfo[index].ret = ret_blk->addr - first_blk_phy + ALLOC_MEM_START;
appMemInfo[index].com_index = index; /////which com
appMemInfo[index].prio = appInfo.prio;
/*
memcpy(&appMemInfo[1], &appMemInfo[0], sizeof(App_Mem_Info));
memcpy(&appMemInfo[2], &appMemInfo[0], sizeof(App_Mem_Info));
acoral_tasks = 3;
appMemInfo[0].task_start = 0;
appMemInfo[1].task_start = 150;
appMemInfo[2].task_start = 300;
*/
// printk("blk_addr:%x\n", appMemInfo[index].addr);
//printk("para: %x\n", appMemInfo[index].para);
//printk("ret: %x\n", appMemInfo[index].ret);
printk("prio:%d\n", appMemInfo[index].prio);
//para = (App_para *)(para_blk->addr);
//printk("%d : %d\n", para->para1, para->para2);
add = (void __iomem *)(app_blk->addr);
if(vfs_read(fp, add, file_len, &pos) != file_len)
{
printk("vfs_read err\n");
return -1;
}
//printk("read file length: %d\n", file_len);
filp_close(fp, NULL);
set_fs(old_fs); //恢复地址访问限制值
do_gettimeofday(&stop);
timeval_subtract("para_time",&start,&stop);
send_ipi(ACORAL_IPI_INT3_CPU1_APP);
// wait_for_completion(&memInfo[index].com);
//init_completion(&acoral_com);
wait_for_completion(&acoral_com[index]);
//printk("result:%d ret: %d\n", *(ret_blk->addr), *(int *)appInfo.ret);
//printk("retadd:%x\n", appInfo.ret);
do_gettimeofday(&start);
memset(&appMemInfo[index], 0, sizeof(App_Mem_Info));
if(copy_to_user(appInfo.ret, ret_blk->addr, appInfo.retsize))
return -EFAULT;
// free_bit_appMemInfo(index, appMemInfo_bitmap);
FreeBuddy(AllList, app_blk);
FreeBuddy(AllList, para_blk);
FreeBuddy(AllList, ret_blk);
do_gettimeofday(&stop);
timeval_subtract("trans_ret_time",&start,&stop);
//return appMemInfo[index].ret;;
return 0;
}
