经过阅(yuè )读源码,其实不(bú )少思路和(hé )Android的匿名内存有(yǒu )点相(xiàng )似阅读本文(wén )之前(qián )就算(suàn )不(bú )知道dma_buf的设(shè )计思想也(yě )没关系,我不会(huì )仔细(xì )到每一(yī )行,我会注重其在gralloc服(fú )务中的申请流程(chéng ),看(kàn )看(kàn )ion是如何(hé )管理共(gòng )享(xiǎng )内存(cún ),为什么要抛弃(qì )ashmem我(wǒ )们(men )
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