经过阅读源码,其实(shi)不少思路和Android的匿(ni)名(ming)内存有点(dian)相(xiang)似阅读本文之前就算不知道dma_buf的设(she)计思想(xiang)也没关系,我不(bu)会仔细到每(mei)一行(hang),我(wo)会(hui)注(zhu)重其在gralloc服务中(zhong)的申(shen)请流程,看看ion是如(ru)何管(guan)理(li)共(gong)享内存,为(wei)什么要抛弃(qi)ashmem我(wo)们
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