经过阅读(du)源码,其实不(bu)少(shao)思(si)路和(he)Android的(de)匿(ni)名内存(cun)有点(dian)相似(si)阅(yue)读本文之前就算不知道dma_buf的设(she)计(ji)思想也没关(guan)系,我不会仔细到每一行,我(wo)会注重(chong)其在(zai)gralloc服(fu)务中(zhong)的申请流程,看看ion是如何管(guan)理共(gong)享(xiang)内存,为(wei)什么(me)要抛弃ashmem我们
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