mergerfs/tests/TEST_o_direct
2023-07-09 15:32:11 -05:00

26 lines
382 B
Python
Executable File

#!/usr/bin/env python3
import os
import sys
import tempfile
import mmap
import resource
(fd,filepath) = tempfile.mkstemp(dir=sys.argv[1])
os.close(fd)
fd = os.open(filepath,os.O_RDWR|os.O_DIRECT|os.O_TRUNC)
os.unlink(filepath)
data = mmap.mmap(-1, resource.getpagesize())
os.write(fd,data)
os.lseek(fd,0,os.SEEK_SET)
data = os.read(fd,resource.getpagesize())
os.close(fd)