Python mmapの例

コード例 #1

 def __init__(self, hardware, mem, mode):
     self.hardware = hardware
     self.mem = mem
     if mode == 'r':
         mode = 'r'
         access = smmap.ACCESS_READ
     else:
         mode = 'r+'
         access = smmap.ACCESS_WRITE
     if mem == 'emce1':
         length = 4096 * 2
     else:
         length = 49152 * 2
     f = open('/dev/' + mem, mode)
     self.data = smmap.mmap(f.fileno(), length, 'h', access)
     f.close()
     self.pos = 0
     if mem == 'emce0':
         self.write = self.writereal
     else:
         self.write = self.writecomplex

コード例 #2

ファイル: emce.py プロジェクト: notti/load_pull-sw

 def __init__(self, hardware, mem, mode):
     self.hardware = hardware
     self.mem = mem
     if mode == 'r':
         mode = 'r'
         access = smmap.ACCESS_READ
     else:
         mode = 'r+'
         access = smmap.ACCESS_WRITE
     if mem == 'emce1':
         length = 4096*2
     else:
         length = 49152*2
     f = open('/dev/'+mem, mode)
     self.data = smmap.mmap(f.fileno(), length, 'h', access)
     f.close()
     self.pos = 0
     if mem == 'emce0':
         self.write = self.writereal
     else:
         self.write = self.writecomplex

コード例 #3

ファイル: mread.py プロジェクト: notti/load_pull-buildroot

#!/usr/bin/python
import sys
import csv
import smmap

if len(sys.argv) == 3:
    length = int(sys.argv[2])
else:
    with open('/sys/devices/plb.0/84000000.proc2fpga/depth','r') as f:
        length = int(f.read())

if sys.argv[1][-1] != '0':
    length *= 2

f = open(sys.argv[1], 'r+')
data = smmap.mmap(f.fileno(), length, 'h')
f.close()
if sys.argv[1][-1] != '0':
    for i in xrange(length):
        print "%s,%s" % data[i*2:i*2+2]
else:
    for i in xrange(length):
        print "%s" % (data[i])
data.close()

コード例 #4

ファイル: test.py プロジェクト: notti/smmap

import smmap

f = open('data' ,'r+')
x = smmap.mmap(f.fileno(), 10, 'h')
print x[0]
print x[0:3]
x[1]=5
x[2]=-5
x[5:7] = (2,3)
x[5:7] = (2,3,4)