linked_list* build_list_from_file(FILE* file, bool reverse) {
linked_list* new_list = new_linked_list();
int ch;
bool still_reading = true;
bool first_val_read = false;
int number = 0;
while (!first_val_read && still_reading && (ch = getc(file)) != EOF) {
switch(ch) {
case SPACE:
break; // ignore spaces
case RETURN:
case NEWLINE:
still_reading = false;
break;
case COMMA:
ll_init_add(new_list, number);
number = 0;
first_val_read = true;
break;
// NUMBER ENCOUNTERED
default:
number = number*10 + char_to_num(ch);
}
}
while (still_reading && (ch = getc(file)) != EOF) {
switch(ch) {
case SPACE:
break; // ignore spaces
case RETURN:
case NEWLINE:
still_reading = false;
break;
case COMMA:
if (reverse) {
ll_add_to_head(new_list, number);
}
else {
ll_add_to_tail(new_list, number);
}
number = 0;
break;
// NUMBER ENCOUNTERED
default:
number = number*10 + char_to_num(ch);
}
}
if (reverse) {
ll_add_to_head(new_list, number);
}
else {
ll_add_to_tail(new_list, number);
}
return new_list;
}
u8 task_send_msg(u8 to, MSG_TYPE_ENUM type, u32 value)
{
/*1.将消息添加到系统的消息缓冲区*/
/*1.1 申请消息ID*/
u8 MSG_ID = ll_add_to_tail(MSG_list , value);
if( 0 == MSG_ID)
{
return false;
}
/*1.2 填充消息*/
MSG_s _MSG;
_MSG.from = task_global.current_TID;
_MSG.to = to;
_MSG.type = type;
_MSG.value = value;
MSG[MSG_ID] = _MSG;
/*2. 通知内核将消息发送到指定task*/
_MSG.from = task_global.current_TID;
_MSG.to = 0;
_MSG.type = MSG_SEND;
_MSG.value = MSG_ID;
task_info[0].MSG = _MSG;
/*进入死循环判断是否发送成功*/
u32 timer_value = os_timer_ctrl.value;
while( timer_value == os_timer_ctrl.value ){}
return true;
}
