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经(jīng )过阅读源码,其实(shí )不少(shǎo )思路和Android的匿(nì )名内存(cún )有点相似阅读本文之前(qián )就(jiù )算(suàn )不(bú )知道dma_buf的设计(jì )思(sī )想也(yě )没关系,我(wǒ )不(bú )会仔(zǎi )细到(dào )每(měi )一行,我会注重其(qí )在gralloc服务中的申请流(liú )程,看看(kàn )ion是如(rú )何(hé )管(guǎn )理共享内存,为(wéi )什么(me )要抛(pāo )弃ashmem我(wǒ )们(men )

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