经过阅读源(yuán )码(mǎ ),其实不(bú )少思路和(hé )Android的(de )匿名(míng )内存有点(diǎn )相似阅读本文之前(qián )就算不(bú )知道(dào )dma_buf的(de )设计思想(xiǎng )也(yě )没关(guān )系(xì ),我(wǒ )不会(huì )仔(zǎi )细到每一(yī )行,我会注重其在gralloc服务中(zhōng )的申请(qǐng )流程,看(kàn )看(kàn )ion是(shì )如何(hé )管(guǎn )理共享内存,为(wéi )什么要抛弃ashmem我(wǒ )们
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