Question

对于我的任务，我需要为电子邮件服务器和客户端开发FSP模型。我设法编写一个描述一个用户，服务器和他的邮箱的简单模型，但是我在将这个系统改为一个有两个用户和两个不同邮箱的系统时遇到了问题。

我开发的FSP模型：

USER = (read->USER | write->USER).
SERVER = (read->get->SERVER | write->put->SERVER).
MAILBOX(N=0) = MAILBOX[N],
MAILBOX[i:0..3] = (when (i<3) write->put->MAILBOX[i+1]
 | when (i>0) read->get->MAILBOX[i-1]).
||EMAIL = (USER || SERVER || MAILBOX).

Answer 1

如果你试试这个怎么样：

USERX = (read->USERX | write->USERX).
USERY = (read->USERY | write->USERY).


MAILBOX(N=3) = X[N],
X[i:0..N] = (when (i<3) write->put->X[i+1] 
| when (i>0) read->get->X[i-1]).

MAILBOX1(N=3) = Y[N],
Y[j:0..N] = (when (j<3) write->put->Y[j+1] 
| when (j>0) read->get->Y[j-1]).



SERVER = (read->get->SERVER | write->put->SERVER).

||EMAIL = (USERX || USERY || SERVER || MAILBOX ||  MAILBOX1).

EMAIL服务器FSP模型

1 个答案: