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- # Source Generated with Decompyle++
- # File: in.pyo (Python 2.4)
-
- from test.test_support import verify, vereq, TESTFN
- import mmap
- import os
- import re
- PAGESIZE = mmap.PAGESIZE
-
- def test_both():
- '''Test mmap module on Unix systems and Windows'''
- if os.path.exists(TESTFN):
- os.unlink(TESTFN)
-
- f = open(TESTFN, 'w+')
-
- try:
- f.write('\x00' * PAGESIZE)
- f.write('foo')
- f.write('\x00' * (PAGESIZE - 3))
- f.flush()
- m = mmap.mmap(f.fileno(), 2 * PAGESIZE)
- f.close()
- print type(m)
- print ' Position of foo:', m.find('foo') / float(PAGESIZE), 'pages'
- vereq(m.find('foo'), PAGESIZE)
- print ' Length of file:', len(m) / float(PAGESIZE), 'pages'
- vereq(len(m), 2 * PAGESIZE)
- print ' Contents of byte 0:', repr(m[0])
- vereq(m[0], '\x00')
- print ' Contents of first 3 bytes:', repr(m[0:3])
- vereq(m[0:3], '\x00\x00\x00')
- print "\n Modifying file's content..."
- m[0] = '3'
- m[PAGESIZE + 3:PAGESIZE + 3 + 3] = 'bar'
- print ' Contents of byte 0:', repr(m[0])
- vereq(m[0], '3')
- print ' Contents of first 3 bytes:', repr(m[0:3])
- vereq(m[0:3], '3\x00\x00')
- print ' Contents of second page:', repr(m[PAGESIZE - 1:PAGESIZE + 7])
- vereq(m[PAGESIZE - 1:PAGESIZE + 7], '\x00foobar\x00')
- m.flush()
- match = re.search('[A-Za-z]+', m)
- if match is None:
- print ' ERROR: regex match on mmap failed!'
- else:
- (start, end) = match.span(0)
- length = end - start
- print ' Regex match on mmap (page start, length of match):', start / float(PAGESIZE), length
- vereq(start, PAGESIZE)
- vereq(end, PAGESIZE + 6)
- m.seek(0, 0)
- print ' Seek to zeroth byte'
- vereq(m.tell(), 0)
- m.seek(42, 1)
- print ' Seek to 42nd byte'
- vereq(m.tell(), 42)
- m.seek(0, 2)
- print ' Seek to last byte'
- vereq(m.tell(), len(m))
- print ' Try to seek to negative position...'
-
- try:
- m.seek(-1)
- except ValueError:
- pass
-
- verify(0, 'expected a ValueError but did not get it')
- print ' Try to seek beyond end of mmap...'
-
- try:
- m.seek(1, 2)
- except ValueError:
- pass
-
- verify(0, 'expected a ValueError but did not get it')
- print ' Try to seek to negative position...'
-
- try:
- m.seek(-len(m) - 1, 2)
- except ValueError:
- pass
-
- verify(0, 'expected a ValueError but did not get it')
- print ' Attempting resize()'
-
- try:
- m.resize(512)
- except SystemError:
- pass
-
- verify(len(m) == 512, 'len(m) is %d, but expecting 512' % (len(m),))
-
- try:
- m.seek(513, 0)
- except ValueError:
- pass
-
- verify(0, 'Could seek beyond the new size')
- f = open(TESTFN)
- f.seek(0, 2)
- verify(f.tell() == 512, 'Underlying file not truncated')
- f.close()
- verify(m.size() == 512, 'New size not reflected in file')
- m.close()
- finally:
-
- try:
- f.close()
- except OSError:
- pass
-
-
- try:
- os.unlink(TESTFN)
- except OSError:
- pass
-
-
-
- try:
- mapsize = 10
- print ' Creating', mapsize, 'byte test data file.'
- open(TESTFN, 'wb').write('a' * mapsize)
- print ' Opening mmap with access=ACCESS_READ'
- f = open(TESTFN, 'rb')
- m = mmap.mmap(f.fileno(), mapsize, access = mmap.ACCESS_READ)
- verify(m[:] == 'a' * mapsize, 'Readonly memory map data incorrect.')
- print " Ensuring that readonly mmap can't be slice assigned."
-
- try:
- m[:] = 'b' * mapsize
- except TypeError:
- pass
-
- verify(0, 'Able to write to readonly memory map')
- print " Ensuring that readonly mmap can't be item assigned."
-
- try:
- m[0] = 'b'
- except TypeError:
- pass
-
- verify(0, 'Able to write to readonly memory map')
- print " Ensuring that readonly mmap can't be write() to."
-
- try:
- m.seek(0, 0)
- m.write('abc')
- except TypeError:
- pass
-
- verify(0, 'Able to write to readonly memory map')
- print " Ensuring that readonly mmap can't be write_byte() to."
-
- try:
- m.seek(0, 0)
- m.write_byte('d')
- except TypeError:
- pass
-
- verify(0, 'Able to write to readonly memory map')
- print " Ensuring that readonly mmap can't be resized."
-
- try:
- m.resize(2 * mapsize)
- except SystemError:
- pass
- except TypeError:
- pass
-
- verify(0, 'Able to resize readonly memory map')
- del m
- del f
- verify(open(TESTFN, 'rb').read() == 'a' * mapsize, 'Readonly memory map data file was modified')
- print ' Opening mmap with size too big'
- import sys
- f = open(TESTFN, 'r+b')
-
- try:
- m = mmap.mmap(f.fileno(), mapsize + 1)
- except ValueError:
- if sys.platform.startswith('win'):
- verify(0, 'Opening mmap with size+1 should work on Windows.')
-
- except:
- sys.platform.startswith('win')
-
- if not sys.platform.startswith('win'):
- verify(0, 'Opening mmap with size+1 should raise ValueError.')
-
- m.close()
- f.close()
- if sys.platform.startswith('win'):
- f = open(TESTFN, 'r+b')
- f.truncate(mapsize)
- f.close()
-
- print ' Opening mmap with access=ACCESS_WRITE'
- f = open(TESTFN, 'r+b')
- m = mmap.mmap(f.fileno(), mapsize, access = mmap.ACCESS_WRITE)
- print ' Modifying write-through memory map.'
- m[:] = 'c' * mapsize
- verify(m[:] == 'c' * mapsize, 'Write-through memory map memory not updated properly.')
- m.flush()
- m.close()
- f.close()
- f = open(TESTFN, 'rb')
- stuff = f.read()
- f.close()
- verify(stuff == 'c' * mapsize, 'Write-through memory map data file not updated properly.')
- print ' Opening mmap with access=ACCESS_COPY'
- f = open(TESTFN, 'r+b')
- m = mmap.mmap(f.fileno(), mapsize, access = mmap.ACCESS_COPY)
- print ' Modifying copy-on-write memory map.'
- m[:] = 'd' * mapsize
- verify(m[:] == 'd' * mapsize, 'Copy-on-write memory map data not written correctly.')
- m.flush()
- verify(open(TESTFN, 'rb').read() == 'c' * mapsize, 'Copy-on-write test data file should not be modified.')
-
- try:
- print ' Ensuring copy-on-write maps cannot be resized.'
- m.resize(2 * mapsize)
- except TypeError:
- pass
-
- verify(0, 'Copy-on-write mmap resize did not raise exception.')
- del m
- del f
-
- try:
- print ' Ensuring invalid access parameter raises exception.'
- f = open(TESTFN, 'r+b')
- m = mmap.mmap(f.fileno(), mapsize, access = 4)
- except ValueError:
- pass
-
- verify(0, 'Invalid access code should have raised exception.')
- if os.name == 'posix':
- f = open(TESTFN, 'r+b')
-
- try:
- m = mmap.mmap(f.fileno(), mapsize, flags = mmap.MAP_PRIVATE, prot = mmap.PROT_READ, access = mmap.ACCESS_WRITE)
- except ValueError:
- pass
-
- verify(0, 'Incompatible parameters should raise ValueError.')
- f.close()
- finally:
-
- try:
- os.unlink(TESTFN)
- except OSError:
- pass
-
-
- f = open(TESTFN, 'w+')
-
- try:
- data = 'aabaac\x00deef\x00\x00aa\x00'
- n = len(data)
- f.write(data)
- f.flush()
- m = mmap.mmap(f.fileno(), n)
- f.close()
- for start in range(n + 1):
- for finish in range(start, n + 1):
- slice = data[start:finish]
- vereq(m.find(slice), data.find(slice))
- vereq(m.find(slice + 'x'), -1)
-
-
- m.close()
- finally:
- os.unlink(TESTFN)
-
- f = open(TESTFN, 'w+')
-
- try:
- f.write(2 ** 16 * 'a')
- f.close()
- f = open(TESTFN)
- mf = mmap.mmap(f.fileno(), 2 ** 16, access = mmap.ACCESS_READ)
- mf.close()
- mf.close()
- f.close()
- finally:
- os.unlink(TESTFN)
-
- print ' Test passed'
-
- test_both()
-