canyie ebb0ec6c42 Make xmmap() returns nullptr when fails
In the constructor of mmap_data, there are two possible values when fails: nullptr if fstat() fails, and MAP_FAILED if mmap() fails, but mmap_data treated MAP_FAILED as valid address and crashes.
2022-02-08 00:49:47 -08:00
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2019-01-30 03:10:12 -05:00
2019-03-03 06:35:25 -05:00
2021-09-09 01:37:20 -07:00