def lap(packets, lap_list, eps):
g = 0
r = 0
num = -1
i = len(lap_list)
g = su.cal_g(i)
if i == 1 or i == su.cal_d(i):
r = int(laplace.rvs(0, 1 / eps))
else:
num = int(log(i, 2))
r = int(laplace.rvs(0, num / eps))
x = lap_list[g][1] + (packets[i][1] - packets[g][1]) + r
# print(g, i)
if x > 1500:
x = 1500
if x < 0:
x = 0
n = [packets[-1][0], x, packets[-1][2]]
return n, x - packets[-1][1]
def lap_trace(packets, lap_list, eps):
# lap_list = []
g = 0
r = 0
num = -1
i = len(lap_list)
g = su.cal_g(i)
if i == 1 or i == su.cal_d(i):
# r = int(np.random.laplace(0, 1/eps))
r = int(laplace.rvs(0, 1 / eps))
else:
num = int(log(i, 2))
# r = int(np.random.laplace(0, num/eps))
r = int(laplace.rvs(0, num / eps))
x = lap_list[g] + (packets[i] - packets[g]) + r
# print(g, i)
# if x > 1500:
# x = 1500
if x < 0:
x = 0
n = x
return n, x - packets[i]