文档解释ORA-09879:sstascre/sstasat:shmaterror,unabletoattachtasreadpageCause:Errorinshmat.Action:Checkerrnoreturned.Verifythatenoughsharedmemoryisavailableonthesyst...

文档解释ORA-09878:sstascre/sstasat:shmaterror,unabletoattachtaswritepageCause:Errorinshmat.Action:Checkerrnoreturned.Verifythatenoughsharedmemoryisavailableonthesys...

文档解释ORA-02720:osnfop:shmatfailedCause:Whenthefastdriverwasinvoked,processesfailedtoattachtothesharedmemorybuffer.Youprobablysuppliedanillegalsharedmemoryattacha...

转自百度百科 glPushMatrix函数将当前矩阵堆栈推送，通过一个，复制当前矩阵。这就是后glPushMatrix的调用堆栈的顶部矩阵是它下面的相同的。 　　终于明白为什么使用glPushMatrix()和glPopMatrix()的原因了。将本次需要执行的缩放、平移等操作放在glPushMat...