[root@localhost morinaga]# ./a.out 
fd=3
write=2
fd=3
write=7
fd=3
read=1 val=1
waiting for interrupt...poll=1 revent=0x1
lseek=0
read=1 val=1
OK (1, High)
fd=3
read=1 val=1
waiting for interrupt...poll=1 revent=0x1
lseek=0
read=1 val=1
OK (1, High)
fd=3
read=1 val=1
waiting for interrupt...poll=1 revent=0x1
lseek=0
read=1 val=1
OK (1, High)
[root@localhost morinaga]#