#include?“lift.h“

ONE_LIFT_T?*lift?=?NULL;
pthread_t?lift_thread;
pthread_t?user_thread;

/*create?a?lift?struct*/
ONE_LIFT_T*?creatLift（）{
	ONE_LIFT_T?*lift;
	lift?=?（ONE_LIFT_T*）malloc（sizeof（ONE_LIFT_T））;
	lift->status?=?STATUS_STOPPING;
	lift->floor?=?1;
	lift->commands?=?creatCmd（“1-“）;?//default?floor?on?1
	lift->direction?=?DIRECTION_NULL;
	
	return?lift;
}

/*lift?running?thread?function*/
void?*liftThread（void*?p）{
	ONE_LIFT_T?*_lift?=?（ONE_LIFT_T*）p;
	printf（“lift?cur?floor?is?%d\n“_lift->commands->floor）;
	while（1）{
		if（_lift->commands?!=?NULL）{
			if（_lift->commands->next?!=?NULL）{
				_lift->status?=?STATUS_RUNNING;?//set?lift?status
				if（_lift->commands->floor?commands->next->floor）{
					_lift->commands->floor++;
					_lift->commands->direction?=?DIRECTION_UP;?//set?lift?running?direction
				}
				else?if（_lift->commands->floor?>?_lift->commands->next->floor）{
					_lift->commands->floor--;
					_lift->commands->direction?=?DIRECTION_DOWN;
				}
				else{?//_lift->commands->floor?==?_lift->commands->next->floor
						delFirstCmd（&（_lift->commands））;
						printf（“lift?is?arrive?:?%d\n“_lift->commands->floor）;
						if（_lift->commands->next?!=?NULL）{
							_lift->status?=?STATUS_WAITTING;
						}
						else{
							_lift->status?=?STATUS_STOPPING;
							_lift->commands->direction?=?DIRECTION_NULL;
						}
						
				}
				printf（“lift?cur?floor?is?%d\n“_lift->commands->floor）;
			}
		}
		sleep（2）;?//arrive?next?floor?need?2?sec
	}
}

/*user?operate?thread*/
void?*userThread（void*?p）{
	ONE_LIFT_T?*_lift?=?（ONE_LIFT_T*）p;
	int?ret;
	while（1）{
			char?cmd[2];
			scanf（“%s“cmd）;
			//這里使用正則表達式最好
			if（（cmd[0]?>=?‘1‘?&&?cmd[0]?<=?‘9‘）?&&?
				?（cmd[1]?==?‘-‘?||?cmd[1]?==?‘+‘?||?cmd[1]?==?‘*‘）?&&
				?（strlen（cmd）?<=?2）
				）{
					//if?user?input?correct?cmd??it?will?create?a?cmd?to?list
					ret?=?addCmd（_lift->commandscreatCmd（cmd））;
					if（ret?!=?0）
						printf（“Add?user?command?fail!\nIt?may?be?full!\n“）;
				}
			else{
				printf（“Usage:?nd?n（1~9）?d（-+）\n“）;	
			}
	}
}

/*lift?test?init*/
void?initThreads（）{
	lift?=?creatLift（）;
	int?ret;
	ret?=?pthread_create（&lift_threadNULLliftThread（void*）lift）;
	if（ret?!=?0）{
		printf（“Create?lift?thread?fail!\n“）;	
	}
	
	ret?=?pthread_create（&user_threadNULLuserThread（void*）lift）;
	if（ret?!=?0）{
		printf（“Create?user?thread?fail!\n“）;	
	}
}

/*waitting?the?lift?thread?and?user?thread?for?stop*/
void?waitThreads（）{
	if（lift_thread?!=?0）{
		pthread_join（lift_threadNULL）;	
	}	
	if（user_thread?!=?0）{
		pthread_join（user_threadNULL）;	
	}	
}

?屬性????????????大小?????日期????時間???名稱
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?????文件???????1903??2014-03-05?10:01??lift_cmd.c

?????文件????????971??2014-03-05?09:55??lift.h

?????文件???????2680??2014-03-05?09:55??lift.c

?????文件????????108??2014-03-05?09:55??Main.c

-----------?---------??----------?-----??----

?????????????????5662????????????????????4