浅论OS中PV操作

Based on OS PV operation research

简要介绍了PV原语及信号量所表示的意义,根据信号量机制与PV操作的特点,提出使用PV操作实现具体问题的解题思路,最后对新的实施方法效果进行了正确的评价.

Introduced briefly the PV primitive and the saphore expressed the significance, according to the saphore mechanism and the PV operation＇s characteristic, proposed uses PV the operation to realize the concrete question problem solving mentality, finally has carried on the correct appraisal to the new implementation method effect.