poll([{fd=3, events=POLLIN}], 1, -1















)    = 1 ([{fd=3, revents=POLLIN}])
accept(3, NULL, NULL)                   = 5
fcntl(5, F_GETFL)                       = 0x2 (flags O_RDWR)
fcntl(5, F_SETFL, O_RDWR|O_NONBLOCK)    = 0
poll([{fd=3, events=POLLIN}], 1, -1