进程提出资源请求时，先判断是否是合理的请求以及当前可利用的资源数能否满足它的请求，若能则假定分配给它，修改相应的数据结构，然后进行安全性算法检查，如果安全就满足进程的请求，将请求的资源分配给它，否则不能分配资源给它。-Process resource requests, first determine whether a reasonable request and the current number of available resources it can meet the request, if it is assumed that assigned to it, modify the appropriate data structures, and then proceed to the security algorithm to check if the securitymeet the request of the process, the request allocation of resources to it, or can not allocate resources to it.