1import cffi 2 3ffi = cffi.FFI() 4 5ffi.embedding_api(""" 6 int add1(int, int); 7""") 8 9ffi.embedding_init_code(r""" 10 import sys, time 11 sys.stdout.write("preparing") 12 for i in range(3): 13 sys.stdout.flush() 14 # Windows: sometimes time.sleep() doesn't sleep at all. 15 # This appears to occur on recent versions of python only. 16 t_end = time.time() + 0.19 17 while time.time() < t_end: 18 time.sleep(0.2) 19 sys.stdout.write(".") 20 sys.stdout.write("\n") 21 22 from _add1_cffi import ffi 23 24 int(ord("A")) # check that built-ins are there 25 26 @ffi.def_extern() 27 def add1(x, y): 28 sys.stdout.write("adding %d and %d\n" % (x, y)) 29 sys.stdout.flush() 30 return x + y 31""") 32 33ffi.set_source("_add1_cffi", """ 34""") 35 36fn = ffi.compile(verbose=True) 37print('FILENAME: %s' % (fn,)) 38