经过(guo)阅读源码,其实不少(shao)思路和Android的匿(ni)名(ming)内存(cun)有点(dian)相似阅读本文之前就算(suan)不(bu)知(zhi)道dma_buf的设计思想(xiang)也没关系,我不会仔细(xi)到每一(yi)行(hang),我会注重(chong)其(qi)在(zai)gralloc服务(wu)中的申请流程,看看ion是(shi)如何管理共(gong)享内存,为什(shi)么要(yao)抛(pao)弃ashmem我们
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