def fromint(intval):
if intval < 0:
sign = -1
ival = r_uint(-intval)
elif intval > 0:
sign = 1
ival = r_uint(intval)
else:
return rbigint([0], 0)
# Count the number of Python digits.
# We used to pick 5 ("big enough for anything"), but that's a
# waste of time and space given that 5*15 = 75 bits are rarely
# needed.
t = ival
ndigits = 0
while t:
ndigits += 1
t >>= SHIFT
v = rbigint([0] * ndigits, sign)
t = ival
p = 0
while t:
v.digits[p] = intmask(t & MASK)
t >>= SHIFT
p += 1
return v
def ll_int2dec(i):
from pypy.rpython.lltypesystem.rstr import mallocstr
temp = malloc(CHAR_ARRAY, 20)
len = 0
sign = 0
if i < 0:
sign = 1
i = r_uint(-i)
else:
i = r_uint(i)
if i == 0:
len = 1
temp[0] = '0'
else:
while i:
temp[len] = chr(i%10+ord('0'))
i //= 10
len += 1
len += sign
result = mallocstr(len)
result.hash = 0
if sign:
result.chars[0] = '-'
j = 1
else:
j = 0
while j < len:
result.chars[j] = temp[len-j-1]
j += 1
return result
def ll_dict_lookup(d, key, hash):
DICT = lltype.typeOf(d).TO
entries = d.entries
mask = len(entries) - 1
i = hash & mask
# do the first try before any looping
if entries.valid(i):
checkingkey = entries[i].key
if checkingkey == key:
return i # found the entry
if d.keyeq is not None and entries.hash(i) == hash:
# correct hash, maybe the key is e.g. a different pointer to
# an equal object
found = d.keyeq(checkingkey, key)
if DICT.paranoia:
if (entries != d.entries or not entries.valid(i)
or entries[i].key != checkingkey):
# the compare did major nasty stuff to the dict: start over
return ll_dict_lookup(d, key, hash)
if found:
return i # found the entry
freeslot = -1
elif entries.everused(i):
freeslot = i
else:
return i # pristine entry -- lookup failed
# In the loop, a deleted entry (everused and not valid) is by far
# (factor of 100s) the least likely outcome, so test for that last.
perturb = r_uint(hash)
while 1:
# compute the next index using unsigned arithmetic
i = r_uint(i)
i = (i << 2) + i + perturb + 1
i = intmask(i) & mask
# keep 'i' as a signed number here, to consistently pass signed
# arguments to the small helper methods.
if not entries.everused(i):
if freeslot == -1:
freeslot = i
return freeslot
elif entries.valid(i):
checkingkey = entries[i].key
if checkingkey == key:
return i
if d.keyeq is not None and entries.hash(i) == hash:
# correct hash, maybe the key is e.g. a different pointer to
# an equal object
found = d.keyeq(checkingkey, key)
if DICT.paranoia:
if (entries != d.entries or not entries.valid(i)
or entries[i].key != checkingkey):
# the compare did major nasty stuff to the dict:
# start over
return ll_dict_lookup(d, key, hash)
if found:
return i # found the entry
elif freeslot == -1:
freeslot = i
perturb >>= PERTURB_SHIFT
def test_uintmask(self):
assert rbigint.fromint(-1).uintmask() == r_uint(-1)
assert rbigint.fromint(0).uintmask() == r_uint(0)
assert (rbigint.fromint(sys.maxint).uintmask() ==
r_uint(sys.maxint))
assert (rbigint.fromlong(sys.maxint+1).uintmask() ==
r_uint(-sys.maxint-1))
def fromint(intval):
if intval < 0:
sign = -1
ival = r_uint(-intval)
elif intval > 0:
sign = 1
ival = r_uint(intval)
else:
return rbigint()
# Count the number of Python digits.
# We used to pick 5 ("big enough for anything"), but that's a
# waste of time and space given that 5*15 = 75 bits are rarely
# needed.
t = ival
ndigits = 0
while t:
ndigits += 1
t >>= SHIFT
v = rbigint([0] * ndigits, sign)
t = ival
p = 0
while t:
v._setdigit(p, t)
t >>= SHIFT
p += 1
return v
def ll_int2hex(i, addPrefix):
from pypy.rpython.lltypesystem.rstr import mallocstr
temp = malloc(CHAR_ARRAY, 20)
len = 0
sign = 0
if i < 0:
sign = 1
i = r_uint(-i)
else:
i = r_uint(i)
if i == 0:
len = 1
temp[0] = '0'
else:
while i:
temp[len] = hex_chars[i & 0xf]
i >>= 4
len += 1
len += sign
if addPrefix:
len += 2
result = mallocstr(len)
result.hash = 0
j = 0
if sign:
result.chars[0] = '-'
j = 1
if addPrefix:
result.chars[j] = '0'
result.chars[j+1] = 'x'
j += 2
while j < len:
result.chars[j] = temp[len-j-1]
j += 1
return result
def test_unsigned(self):
for op, fn in [('x + y', lambda x, y: x + y),
('x - y', lambda x, y: x - y),
('x * y', lambda x, y: x * y),
('x // y', lambda x, y: x // y),
('x % y', lambda x, y: x % y),
('x << y', lambda x, y: x << y),
('x >> y', lambda x, y: x >> y),
('x ^ y', lambda x, y: x ^ y),
('x & y', lambda x, y: x & y),
('x | y', lambda x, y: x | y),
('-y', lambda x, y: -y),
('~y', lambda x, y: ~y),
]:
fp = self.rgen(fn, [r_uint, r_uint])
print op
fn1 = lambda x, y: fn(r_uint(x), r_uint(y))
fp1 = lambda x, y: r_uint(fp(x, y))
assert fp1(40, 2) == fn1(40, 2)
assert fp1(25, 3) == fn1(25, 3)
assert fp1(40, 2) == fn1(40, 2)
assert fp1(25, 3) == fn1(25, 3)
assert fp1(149, 32) == fn1(149, 32)
assert fp1(149, 33) == fn1(149, 33)
assert fp1(149, 65) == fn1(149, 65)
assert fp1(149, 150) == fn1(149, 150)
big = r_uint(-42)
assert fp1(big, 3) == fn1(big, 3)
if op not in ('x << y', 'x >> y'):
assert fp1(38, big) == fn1(38, big)
assert fp1(big-5, big-12) == fn1(big-5, big-12)
def test_unsigned(self):
for op, fn in [
("x + y", lambda x, y: x + y),
("x - y", lambda x, y: x - y),
("x * y", lambda x, y: x * y),
("x // y", lambda x, y: x // y),
("x % y", lambda x, y: x % y),
("x << y", lambda x, y: x << y),
("x >> y", lambda x, y: x >> y),
("x ^ y", lambda x, y: x ^ y),
("x & y", lambda x, y: x & y),
("x | y", lambda x, y: x | y),
("-y", lambda x, y: -y),
("~y", lambda x, y: ~y),
]:
fp = self.rgen(fn, [r_uint, r_uint])
print op
fn1 = lambda x, y: fn(r_uint(x), r_uint(y))
fp1 = lambda x, y: r_uint(fp(x, y))
assert fp1(40, 2) == fn1(40, 2)
assert fp1(25, 3) == fn1(25, 3)
assert fp1(40, 2) == fn1(40, 2)
assert fp1(25, 3) == fn1(25, 3)
assert fp1(149, 32) == fn1(149, 32)
assert fp1(149, 33) == fn1(149, 33)
assert fp1(149, 65) == fn1(149, 65)
assert fp1(149, 150) == fn1(149, 150)
big = r_uint(-42)
assert fp1(big, 3) == fn1(big, 3)
if op not in ("x << y", "x >> y"):
assert fp1(38, big) == fn1(38, big)
assert fp1(big - 5, big - 12) == fn1(big - 5, big - 12)
def test_uintmask(self):
assert rbigint.fromint(-1).uintmask() == r_uint(-1)
assert rbigint.fromint(0).uintmask() == r_uint(0)
assert (rbigint.fromint(sys.maxint).uintmask() ==
r_uint(sys.maxint))
assert (rbigint.fromlong(sys.maxint+1).uintmask() ==
r_uint(-sys.maxint-1))
def get_len_of_range(lo, hi, step):
"""
Return number of items in range/xrange (lo, hi, step).
Raise ValueError if step == 0 and OverflowError if the true value is too
large to fit in a signed long.
"""
# If lo >= hi, the range is empty.
# Else if n values are in the range, the last one is
# lo + (n-1)*step, which must be <= hi-1. Rearranging,
# n <= (hi - lo - 1)/step + 1, so taking the floor of the RHS gives
# the proper value. Since lo < hi in this case, hi-lo-1 >= 0, so
# the RHS is non-negative and so truncation is the same as the
# floor. Letting M be the largest positive long, the worst case
# for the RHS numerator is hi=M, lo=-M-1, and then
# hi-lo-1 = M-(-M-1)-1 = 2*M. Therefore unsigned long has enough
# precision to compute the RHS exactly.
if step == 0:
raise ValueError
elif step < 0:
lo, hi, step = hi, lo, -step
if lo < hi:
uhi = r_uint(hi)
ulo = r_uint(lo)
diff = uhi - ulo - 1
n = intmask(diff // r_uint(step) + 1)
if n < 0:
raise OverflowError
else:
n = 0
return n
def ll_int2oct(i, addPrefix):
from pypy.rpython.lltypesystem.rstr import mallocstr
if i == 0:
result = mallocstr(1)
result.hash = 0
result.chars[0] = '0'
return result
temp = malloc(CHAR_ARRAY, 25)
len = 0
sign = 0
if i < 0:
sign = 1
i = r_uint(-i)
else:
i = r_uint(i)
while i:
temp[len] = hex_chars[i & 0x7]
i >>= 3
len += 1
len += sign
if addPrefix:
len += 1
result = mallocstr(len)
result.hash = 0
j = 0
if sign:
result.chars[0] = '-'
j = 1
if addPrefix:
result.chars[j] = '0'
j += 1
while j < len:
result.chars[j] = temp[len-j-1]
j += 1
return result
def test_invert():
def f(x):
return ~x
res = interpret(f, [3])
assert res == ~3
assert interpret(f, [r_uint(3)]) == ~r_uint(3)
def ll_dict_lookup(d, key, hash):
DICT = lltype.typeOf(d).TO
entries = d.entries
mask = len(entries) - 1
i = hash & mask
# do the first try before any looping
if entries.valid(i):
checkingkey = entries[i].key
if checkingkey == key:
return i # found the entry
if d.keyeq is not None and entries.hash(i) == hash:
# correct hash, maybe the key is e.g. a different pointer to
# an equal object
found = d.keyeq(checkingkey, key)
if DICT.paranoia:
if (entries != d.entries or
not entries.valid(i) or entries[i].key != checkingkey):
# the compare did major nasty stuff to the dict: start over
return ll_dict_lookup(d, key, hash)
if found:
return i # found the entry
freeslot = -1
elif entries.everused(i):
freeslot = i
else:
return i # pristine entry -- lookup failed
# In the loop, a deleted entry (everused and not valid) is by far
# (factor of 100s) the least likely outcome, so test for that last.
perturb = r_uint(hash)
while 1:
# compute the next index using unsigned arithmetic
i = r_uint(i)
i = (i << 2) + i + perturb + 1
i = intmask(i) & mask
# keep 'i' as a signed number here, to consistently pass signed
# arguments to the small helper methods.
if not entries.everused(i):
if freeslot == -1:
freeslot = i
return freeslot
elif entries.valid(i):
checkingkey = entries[i].key
if checkingkey == key:
return i
if d.keyeq is not None and entries.hash(i) == hash:
# correct hash, maybe the key is e.g. a different pointer to
# an equal object
found = d.keyeq(checkingkey, key)
if DICT.paranoia:
if (entries != d.entries or
not entries.valid(i) or entries[i].key != checkingkey):
# the compare did major nasty stuff to the dict:
# start over
return ll_dict_lookup(d, key, hash)
if found:
return i # found the entry
elif freeslot == -1:
freeslot = i
perturb >>= PERTURB_SHIFT
def test_unsigned(self):
for op, fn in [
('x + y', lambda x, y: x + y),
('x - y', lambda x, y: x - y),
('x * y', lambda x, y: x * y),
('x // y', lambda x, y: x // y),
('x % y', lambda x, y: x % y),
('x << y', lambda x, y: x << y),
('x >> y', lambda x, y: x >> y),
('x ^ y', lambda x, y: x ^ y),
('x & y', lambda x, y: x & y),
('x | y', lambda x, y: x | y),
('-y', lambda x, y: -y),
('~y', lambda x, y: ~y),
]:
fp = self.rgen(fn, [r_uint, r_uint])
print op
fn1 = lambda x, y: fn(r_uint(x), r_uint(y))
fp1 = lambda x, y: r_uint(fp(x, y))
assert fp1(40, 2) == fn1(40, 2)
assert fp1(25, 3) == fn1(25, 3)
assert fp1(40, 2) == fn1(40, 2)
assert fp1(25, 3) == fn1(25, 3)
assert fp1(149, 32) == fn1(149, 32)
assert fp1(149, 33) == fn1(149, 33)
assert fp1(149, 65) == fn1(149, 65)
assert fp1(149, 150) == fn1(149, 150)
big = r_uint(-42)
assert fp1(big, 3) == fn1(big, 3)
if op not in ('x << y', 'x >> y'):
assert fp1(38, big) == fn1(38, big)
assert fp1(big - 5, big - 12) == fn1(big - 5, big - 12)
def get_len_of_range(space, lo, hi, step):
"""
Return number of items in range/xrange (lo, hi, step).
Raise ValueError if step == 0 and OverflowError if the true value is too
large to fit in a signed long.
"""
# If lo >= hi, the range is empty.
# Else if n values are in the range, the last one is
# lo + (n-1)*step, which must be <= hi-1. Rearranging,
# n <= (hi - lo - 1)/step + 1, so taking the floor of the RHS gives
# the proper value. Since lo < hi in this case, hi-lo-1 >= 0, so
# the RHS is non-negative and so truncation is the same as the
# floor. Letting M be the largest positive long, the worst case
# for the RHS numerator is hi=M, lo=-M-1, and then
# hi-lo-1 = M-(-M-1)-1 = 2*M. Therefore unsigned long has enough
# precision to compute the RHS exactly.
if step == 0:
raise OperationError(space.w_ValueError,
space.wrap("step argument must not be zero"))
elif step < 0:
lo, hi, step = hi, lo, -step
if lo < hi:
uhi = r_uint(hi)
ulo = r_uint(lo)
diff = uhi - ulo - 1
n = intmask(diff // r_uint(step) + 1)
if n < 0:
raise OperationError(space.w_OverflowError,
space.wrap("result has too many items"))
else:
n = 0
return n
def _index_cache(self, selector):
space = self.space
cache = space.fromcache(IndexCache)
SHIFT2 = r_uint.BITS - space.config.objspace.std.methodcachesizeexp
SHIFT1 = SHIFT2 - 5
attrs_as_int = objectmodel.current_object_addr_as_int(self)
# ^^^Note: see comment in typeobject.py for
# _pure_lookup_where_with_method_cache()
hash_selector = objectmodel.compute_hash(selector)
product = intmask(attrs_as_int * hash_selector)
index_hash = (r_uint(product) ^ (r_uint(product) << SHIFT1)) >> SHIFT2
# ^^^Note2: same comment too
cached_attr = cache.attrs[index_hash]
if cached_attr is self:
cached_selector = cache.selectors[index_hash]
if cached_selector == selector:
index = cache.indices[index_hash]
if space.config.objspace.std.withmethodcachecounter:
name = selector[0]
cache.hits[name] = cache.hits.get(name, 0) + 1
return index
index = self._index(selector)
cache.attrs[index_hash] = self
cache.selectors[index_hash] = selector
cache.indices[index_hash] = index
if space.config.objspace.std.withmethodcachecounter:
name = selector[0]
cache.misses[name] = cache.misses.get(name, 0) + 1
return index
def test_cast_primitive(self):
from pypy.rpython.annlowlevel import LowLevelAnnotatorPolicy
def llf(u):
return lltype.cast_primitive(lltype.Signed, u)
res = self.interpret(llf, [r_uint(-1)], policy=LowLevelAnnotatorPolicy())
assert res == -1
res = self.interpret(llf, ['x'], policy=LowLevelAnnotatorPolicy())
assert res == ord('x')
def llf(v):
return lltype.cast_primitive(lltype.Unsigned, v)
res = self.interpret(llf, [-1], policy=LowLevelAnnotatorPolicy())
assert res == r_uint(-1)
res = self.interpret(llf, [u'x'], policy=LowLevelAnnotatorPolicy())
assert res == ord(u'x')
res = self.interpret(llf, [1.0], policy=LowLevelAnnotatorPolicy())
assert res == r_uint(1)
def llf(v):
return lltype.cast_primitive(lltype.Char, v)
res = self.interpret(llf, [ord('x')], policy=LowLevelAnnotatorPolicy())
assert res == 'x'
def llf(v):
return lltype.cast_primitive(lltype.UniChar, v)
res = self.interpret(llf, [ord('x')], policy=LowLevelAnnotatorPolicy())
assert res == u'x'
def llf(v):
return lltype.cast_primitive(rffi.SHORT, v)
res = self.interpret(llf, [123], policy=LowLevelAnnotatorPolicy())
assert res == 123
def llf(v):
return lltype.cast_primitive(lltype.Signed, v)
res = self.interpret(llf, [rffi.r_short(123)], policy=LowLevelAnnotatorPolicy())
assert res == 123
def test_blit_rect(self):
surface = RSDL.CreateRGBSurface(0, 150, 50, 32,
r_uint(0x000000FF),
r_uint(0x0000FF00),
r_uint(0x00FF0000),
r_uint(0xFF000000))
fmt = surface.c_format
color = RSDL.MapRGB(fmt, 255, 0, 0)
RSDL.FillRect(surface, lltype.nullptr(RSDL.Rect), color)
paintrect = RSDL_helper.mallocrect(75, 0, 150, 50)
dstrect = lltype.malloc(RSDL.Rect, flavor='raw')
try:
color = RSDL.MapRGB(fmt, 255, 128, 0)
RSDL.FillRect(surface, paintrect, color)
rffi.setintfield(dstrect, 'c_x', 10)
rffi.setintfield(dstrect, 'c_y', 10)
rffi.setintfield(dstrect, 'c_w', 150)
rffi.setintfield(dstrect, 'c_h', 50)
RSDL.BlitSurface(surface, lltype.nullptr(RSDL.Rect), self.screen, dstrect)
RSDL.Flip(self.screen)
finally:
lltype.free(dstrect, flavor='raw')
lltype.free(paintrect, flavor='raw')
RSDL.FreeSurface(surface)
self.check("Half Red/Orange rectangle(150px * 50px) at the top left, 10 pixels from the border")
def test_invert():
def f(x):
return ~x
res = interpret(f, [3])
assert res == ~3
assert interpret(f, [r_uint(3)]) == ~r_uint(3)
def min_max_acc_method(size, signed):
if signed:
min = -(2 ** (8*size-1))
max = (2 ** (8*size-1)) - 1
if size <= native_int_size:
accept_method = 'accept_int_arg'
min = int(min)
max = int(max)
else:
accept_method = 'accept_longlong_arg'
min = r_longlong(min)
max = r_longlong(max)
else:
min = 0
max = (2 ** (8*size)) - 1
if size < native_int_size:
accept_method = 'accept_int_arg'
elif size == native_int_size:
accept_method = 'accept_uint_arg'
min = r_uint(min)
max = r_uint(max)
else:
accept_method = 'accept_ulonglong_arg'
min = r_ulonglong(min)
max = r_ulonglong(max)
return min, max, accept_method
def wrapint(space, x, w_symbolic=False, w_s=''):
if space.config.objspace.std.withsmallint:
from pypy.objspace.std.smallintobject import W_SmallIntObject
try:
return W_SmallIntObject(x)
except OverflowError:
from pypy.objspace.std.intobject import W_IntObject
return W_IntObject(x, w_symbolic, w_s)
elif space.config.objspace.std.withprebuiltint:
from pypy.objspace.std.intobject import W_IntObject
lower = space.config.objspace.std.prebuiltintfrom
upper = space.config.objspace.std.prebuiltintto
# use r_uint to perform a single comparison (this whole function
# is getting inlined into every caller so keeping the branching
# to a minimum is a good idea)
index = r_uint(x - lower)
if index >= r_uint(upper - lower):
w_res = instantiate(W_IntObject)
else:
w_res = W_IntObject.PREBUILT[index]
# obscure hack to help the CPU cache: we store 'x' even into
# a prebuilt integer's intval. This makes sure that the intval
# field is present in the cache in the common case where it is
# quickly reused. (we could use a prefetch hint if we had that)
w_res.intval = x
return w_res
else:
from pypy.objspace.std.intobject import W_IntObject
return W_IntObject(x, w_symbolic, w_s)
def min_max_acc_method(size, signed):
if signed:
min = -(2**(8 * size - 1))
max = (2**(8 * size - 1)) - 1
if size <= native_int_size:
accept_method = 'accept_int_arg'
min = int(min)
max = int(max)
else:
accept_method = 'accept_longlong_arg'
min = r_longlong(min)
max = r_longlong(max)
else:
min = 0
max = (2**(8 * size)) - 1
if size < native_int_size:
accept_method = 'accept_int_arg'
elif size == native_int_size:
accept_method = 'accept_uint_arg'
min = r_uint(min)
max = r_uint(max)
else:
accept_method = 'accept_ulonglong_arg'
min = r_ulonglong(min)
max = r_ulonglong(max)
return min, max, accept_method
def _index_cache(self, selector):
space = self.space
cache = space.fromcache(IndexCache)
SHIFT2 = r_uint.BITS - space.config.objspace.std.methodcachesizeexp
SHIFT1 = SHIFT2 - 5
attrs_as_int = objectmodel.current_object_addr_as_int(self)
# ^^^Note: see comment in typeobject.py for
# _pure_lookup_where_with_method_cache()
hash_selector = objectmodel.compute_hash(selector)
product = intmask(attrs_as_int * hash_selector)
index_hash = (r_uint(product) ^ (r_uint(product) << SHIFT1)) >> SHIFT2
# ^^^Note2: same comment too
cached_attr = cache.attrs[index_hash]
if cached_attr is self:
cached_selector = cache.selectors[index_hash]
if cached_selector == selector:
index = cache.indices[index_hash]
if space.config.objspace.std.withmethodcachecounter:
name = selector[0]
cache.hits[name] = cache.hits.get(name, 0) + 1
return index
index = self._index(selector)
cache.attrs[index_hash] = self
cache.selectors[index_hash] = selector
cache.indices[index_hash] = index
if space.config.objspace.std.withmethodcachecounter:
name = selector[0]
cache.misses[name] = cache.misses.get(name, 0) + 1
return index
def _GetContents(self, fp):
endrec = _EndRecData(fp)
if not endrec:
raise BadZipfile, "File is not a zip file"
size_cd = endrec.stuff[5] # bytes in central directory
offset_cd = endrec.stuff[6] # offset of central directory
self.comment = endrec.comment
x = endrec.filesize - size_cd
concat = x - offset_cd
self.start_dir = offset_cd + concat
fp.seek(self.start_dir, 0)
total = 0
while total < size_cd:
centdir = fp.read(46)
total = total + 46
if centdir[0:4] != stringCentralDir:
raise BadZipfile, "Bad magic number for central directory"
centdir = runpack(structCentralDir, centdir)
filename = fp.read(centdir[_CD_FILENAME_LENGTH])
# Create ZipInfo instance to store file information
x = RZipInfo(filename)
x.extra = fp.read(centdir[_CD_EXTRA_FIELD_LENGTH])
x.comment = fp.read(centdir[_CD_COMMENT_LENGTH])
total = (total + centdir[_CD_FILENAME_LENGTH]
+ centdir[_CD_EXTRA_FIELD_LENGTH]
+ centdir[_CD_COMMENT_LENGTH])
x.header_offset = centdir[_CD_LOCAL_HEADER_OFFSET] + concat
# file_offset must be computed below...
(x.create_version, x.create_system, x.extract_version, x.reserved,
x.flag_bits, x.compress_type, t, d,
crc, x.compress_size, x.file_size) = centdir[1:12]
x.CRC = r_uint(crc) & r_uint(0xffffffff)
x.dostime = t
x.dosdate = d
x.volume, x.internal_attr, x.external_attr = centdir[15:18]
# Convert date/time code to (year, month, day, hour, min, sec)
x.date_time = ( (d>>9)+1980, (d>>5)&0xF, d&0x1F,
t>>11, (t>>5)&0x3F, (t&0x1F) * 2 )
self.filelist.append(x)
self.NameToInfo[x.filename] = x
for data in self.filelist:
fp.seek(data.header_offset, 0)
fheader = fp.read(30)
if fheader[0:4] != stringFileHeader:
raise BadZipfile, "Bad magic number for file header"
fheader = runpack(structFileHeader, fheader)
# file_offset is computed here, since the extra field for
# the central directory and for the local file header
# refer to different fields, and they can have different
# lengths
data.file_offset = (data.header_offset + 30
+ fheader[_FH_FILENAME_LENGTH]
+ fheader[_FH_EXTRA_FIELD_LENGTH])
fname = fp.read(fheader[_FH_FILENAME_LENGTH])
if fname != data.orig_filename:
raise BadZipfile, \
'File name in directory "%s" and header "%s" differ.' % (
data.orig_filename, fname)
fp.seek(self.start_dir, 0)
def _GetContents(self, fp):
endrec = _EndRecData(fp)
if not endrec:
raise BadZipfile, "File is not a zip file"
size_cd = endrec.stuff[5] # bytes in central directory
offset_cd = endrec.stuff[6] # offset of central directory
self.comment = endrec.comment
x = endrec.filesize - size_cd
concat = x - offset_cd
self.start_dir = offset_cd + concat
fp.seek(self.start_dir, 0)
total = 0
while total < size_cd:
centdir = fp.read(46)
total = total + 46
if centdir[0:4] != stringCentralDir:
raise BadZipfile, "Bad magic number for central directory"
centdir = runpack(structCentralDir, centdir)
filename = fp.read(centdir[_CD_FILENAME_LENGTH])
# Create ZipInfo instance to store file information
x = RZipInfo(filename)
x.extra = fp.read(centdir[_CD_EXTRA_FIELD_LENGTH])
x.comment = fp.read(centdir[_CD_COMMENT_LENGTH])
total = (total + centdir[_CD_FILENAME_LENGTH] +
centdir[_CD_EXTRA_FIELD_LENGTH] +
centdir[_CD_COMMENT_LENGTH])
x.header_offset = centdir[_CD_LOCAL_HEADER_OFFSET] + concat
# file_offset must be computed below...
(x.create_version, x.create_system, x.extract_version, x.reserved,
x.flag_bits, x.compress_type, t, d, crc, x.compress_size,
x.file_size) = centdir[1:12]
x.CRC = r_uint(crc) & r_uint(0xffffffff)
x.dostime = t
x.dosdate = d
x.volume, x.internal_attr, x.external_attr = centdir[15:18]
# Convert date/time code to (year, month, day, hour, min, sec)
x.date_time = ((d >> 9) + 1980, (d >> 5) & 0xF, d & 0x1F, t >> 11,
(t >> 5) & 0x3F, (t & 0x1F) * 2)
self.filelist.append(x)
self.NameToInfo[x.filename] = x
for data in self.filelist:
fp.seek(data.header_offset, 0)
fheader = fp.read(30)
if fheader[0:4] != stringFileHeader:
raise BadZipfile, "Bad magic number for file header"
fheader = runpack(structFileHeader, fheader)
# file_offset is computed here, since the extra field for
# the central directory and for the local file header
# refer to different fields, and they can have different
# lengths
data.file_offset = (data.header_offset + 30 +
fheader[_FH_FILENAME_LENGTH] +
fheader[_FH_EXTRA_FIELD_LENGTH])
fname = fp.read(fheader[_FH_FILENAME_LENGTH])
if fname != data.orig_filename:
raise BadZipfile, \
'File name in directory "%s" and header "%s" differ.' % (
data.orig_filename, fname)
fp.seek(self.start_dir, 0)
def f(x):
if x == r_uint(3):
return 9
elif x == r_uint(9):
return 27
elif x == r_uint(27):
return 3
return 0
def test_uint_floordiv(self):
from pypy.rlib.rarithmetic import r_uint
def f(a, b):
return a/b
res = self.interp_operations(f, [r_uint(4), r_uint(3)])
assert res == 1
def test_crc32():
"""
When called with a string, rzlib.crc32 should compute its CRC32 and
return it as a unsigned 32 bit integer.
"""
assert rzlib.crc32('') == r_uint(0)
assert rzlib.crc32('\0') == r_uint(3523407757)
assert rzlib.crc32('hello, world.') == r_uint(3358036098)
def f(x):
if x == r_uint(3):
return 9
elif x == r_uint(9):
return 27
elif x == r_uint(27):
return 3
return 0
def test_crc32():
"""
When called with a string, rzlib.crc32 should compute its CRC32 and
return it as a unsigned 32 bit integer.
"""
assert rzlib.crc32('') == r_uint(0)
assert rzlib.crc32('\0') == r_uint(3523407757)
assert rzlib.crc32('hello, world.') == r_uint(3358036098)
def test_uint_floordiv(self):
from pypy.rlib.rarithmetic import r_uint
def f(a, b):
return a / b
res = self.interp_operations(f, [r_uint(4), r_uint(3)])
assert res == 1
def test_unsigned(self):
space = self.space
self.check(app_types.uint, space.wrap(42), r_uint(42))
self.check(app_types.uint, space.wrap(-1), r_uint(sys.maxint * 2 + 1))
self.check(app_types.uint, space.wrap(sys.maxint * 3),
r_uint(sys.maxint - 2))
self.check(app_types.ulong, space.wrap(sys.maxint + 12),
r_uint(sys.maxint + 12))
self.check(app_types.ulong, space.wrap(sys.maxint * 2 + 3), r_uint(1))
def test_adler32():
"""
When called with a string, zlib.crc32 should compute its adler 32
checksum and return it as an unsigned 32 bit integer.
"""
assert rzlib.adler32('') == r_uint(1)
assert rzlib.adler32('\0') == r_uint(65537)
assert rzlib.adler32('hello, world.') == r_uint(571147447)
assert rzlib.adler32('x' * 23) == r_uint(2172062409)
def test_unsigned(self):
space = self.space
self.check(app_types.uint, space.wrap(42), r_uint(42))
self.check(app_types.uint, space.wrap(-1), r_uint(sys.maxint*2 +1))
self.check(app_types.uint, space.wrap(sys.maxint*3),
r_uint(sys.maxint - 2))
self.check(app_types.ulong, space.wrap(sys.maxint+12),
r_uint(sys.maxint+12))
self.check(app_types.ulong, space.wrap(sys.maxint*2+3), r_uint(1))
def test_adler32():
"""
When called with a string, zlib.crc32 should compute its adler 32
checksum and return it as an unsigned 32 bit integer.
"""
assert rzlib.adler32('') == r_uint(1)
assert rzlib.adler32('\0') == r_uint(65537)
assert rzlib.adler32('hello, world.') == r_uint(571147447)
assert rzlib.adler32('x' * 23) == r_uint(2172062409)
def crc32(s, crc=0):
result = 0
crc = ~r_uint(crc) & 0xffffffffL
for c in s:
crc = rcrc_32_tab[(crc ^ r_uint(ord(c))) & 0xffL] ^ (crc >> 8)
#/* Note: (crc >> 8) MUST zero fill on left
result = crc ^ 0xffffffffL
return result
def crc32(s, crc=0):
result = 0
crc = ~r_uint(crc) & 0xffffffffL
for c in s:
crc = rcrc_32_tab[(crc ^ r_uint(ord(c))) & 0xffL] ^ (crc >> 8)
#/* Note: (crc >> 8) MUST zero fill on left
result = crc ^ 0xffffffffL
return result
def test_surface_basic():
assert RSDL.Init(RSDL.INIT_VIDEO) >= 0
surface = RSDL.CreateRGBSurface(0, 150, 50, 32, r_uint(0x000000FF),
r_uint(0x0000FF00), r_uint(0x00FF0000),
r_uint(0xFF000000))
assert surface
assert rffi.getintfield(surface, 'c_w') == 150
assert rffi.getintfield(surface, 'c_h') == 50
RSDL.FreeSurface(surface)
RSDL.Quit()
def __init__(self, large_alloc_size = LARGE_ALLOC_SIZE,
min_fragment = MIN_FRAGMENT,
num_indices = NUM_INDICES):
self.total_memory_allocated = r_uint(0)
self.total_mallocs = r_uint(0)
self.large_alloc_size = large_alloc_size
self.min_fragment = min_fragment
self.num_indices = num_indices
self.free_blocks = {} # map {start: stop}
self.free_blocks_end = {} # map {stop: start}
self.blocks_by_size = [[] for i in range(self.num_indices)]
def _init(self):
"Initialisation."
self.count = r_ulonglong(0) # total number of bytes
self.input = "" # pending unprocessed data, < 64 bytes
# Initial 160 bit message digest (5 times 32 bit).
self.H0 = r_uint(0x67452301L)
self.H1 = r_uint(0xEFCDAB89L)
self.H2 = r_uint(0x98BADCFEL)
self.H3 = r_uint(0x10325476L)
self.H4 = r_uint(0xC3D2E1F0L)
def _string2uintlist(s, start, count, result):
"""Build a list of count r_uint's by unpacking the string
s[start:start+4*count] in big-endian order.
"""
for i in range(count):
p = start + i * 4
x = r_uint(ord(s[p + 3]))
x |= r_uint(ord(s[p + 2])) << 8
x |= r_uint(ord(s[p + 1])) << 16
x |= r_uint(ord(s[p])) << 24
result[i] = x
def _string2uintlist(s, start, count, result):
"""Build a list of count r_uint's by unpacking the string
s[start:start+4*count] in little-endian order.
"""
for i in range(count):
p = start + i * 4
x = r_uint(ord(s[p]))
x |= r_uint(ord(s[p+1])) << 8
x |= r_uint(ord(s[p+2])) << 16
x |= r_uint(ord(s[p+3])) << 24
result[i] = x
def _init(self):
"""Set this object to an initial empty state.
"""
self.count = r_ulonglong(0) # total number of bytes
self.input = "" # pending unprocessed data, < 64 bytes
# Load magic initialization constants.
self.A = r_uint(0x67452301L)
self.B = r_uint(0xefcdab89L)
self.C = r_uint(0x98badcfeL)
self.D = r_uint(0x10325476L)
def ll_lookup_clean(d, hash):
entries = d.entries
mask = len(entries) - 1
i = hash & mask
perturb = r_uint(hash)
while entries.everused(i):
i = r_uint(i)
i = (i << 2) + i + perturb + 1
i = intmask(i) & mask
perturb >>= LLOrderedDict.PERTURB_SHIFT
return i
def ll_lookup_clean(d, hash):
entries = d.entries
mask = len(entries) - 1
i = hash & mask
perturb = r_uint(hash)
while entries.everused(i):
i = r_uint(i)
i = (i << 2) + i + perturb + 1
i = intmask(i) & mask
perturb >>= LLOrderedDict.PERTURB_SHIFT
return i
def _touint_helper(self):
x = r_uint(0)
i = self._numdigits() - 1
while i >= 0:
prev = x
x = r_uint((x << SHIFT) + self.digits[i])
if (x >> SHIFT) != prev:
raise OverflowError(
"long int too large to convert to unsigned int")
i -= 1
return x
def semlock_acquire(self, space, block, w_timeout):
if not block:
full_msecs = 0
elif space.is_w(w_timeout, space.w_None):
full_msecs = rwin32.INFINITE
else:
timeout = space.float_w(w_timeout)
timeout *= 1000.0
if timeout < 0.0:
timeout = 0.0
elif timeout >= 0.5 * rwin32.INFINITE: # 25 days
raise OperationError(space.w_OverflowError,
space.wrap("timeout is too large"))
full_msecs = r_uint(int(timeout + 0.5))
# check whether we can acquire without blocking
res = rwin32.WaitForSingleObject(self.handle, 0)
if res != rwin32.WAIT_TIMEOUT:
return True
msecs = full_msecs
start = _GetTickCount()
while True:
from pypy.module.rctime.interp_time import State
interrupt_event = space.fromcache(State).get_interrupt_event()
handles = [self.handle, interrupt_event]
# do the wait
rwin32.ResetEvent(interrupt_event)
res = rwin32.WaitForMultipleObjects(handles, timeout=msecs)
if res != rwin32.WAIT_OBJECT_0 + 1:
break
# got SIGINT so give signal handler a chance to run
time.sleep(0.001)
# if this is main thread let KeyboardInterrupt be raised
_check_signals(space)
# recalculate timeout
if msecs != rwin32.INFINITE:
ticks = _GetTickCount()
if r_uint(ticks - start) >= full_msecs:
return False
msecs = full_msecs - r_uint(ticks - start)
# handle result
if res != rwin32.WAIT_TIMEOUT:
return True
return False
def test_primitive_is_true():
def var_is_true(v):
return bool(v)
f = compile_function(var_is_true, [int])
assert f(256)
assert not f(0)
f = compile_function(var_is_true, [r_uint])
assert f(r_uint(256))
assert not f(r_uint(0))
f = compile_function(var_is_true, [float])
assert f(256.0)
assert not f(0.0)
def __init__(self,
large_alloc_size=LARGE_ALLOC_SIZE,
min_fragment=MIN_FRAGMENT,
num_indices=NUM_INDICES):
self.total_memory_allocated = r_uint(0)
self.total_mallocs = r_uint(0)
self.large_alloc_size = large_alloc_size
self.min_fragment = min_fragment
self.num_indices = num_indices
self.free_blocks = {} # map {start: stop}
self.free_blocks_end = {} # map {stop: start}
self.blocks_by_size = [[] for i in range(self.num_indices)]
def semlock_acquire(self, space, block, w_timeout):
if not block:
full_msecs = 0
elif space.is_w(w_timeout, space.w_None):
full_msecs = rwin32.INFINITE
else:
timeout = space.float_w(w_timeout)
timeout *= 1000.0
if timeout < 0.0:
timeout = 0.0
elif timeout >= 0.5 * rwin32.INFINITE: # 25 days
raise OperationError(space.w_OverflowError,
space.wrap("timeout is too large"))
full_msecs = int(timeout + 0.5)
# check whether we can acquire without blocking
res = rwin32.WaitForSingleObject(self.handle, 0)
if res != rwin32.WAIT_TIMEOUT:
return True
msecs = r_uint(full_msecs)
start = _GetTickCount()
while True:
from pypy.module.rctime.interp_time import State
interrupt_event = space.fromcache(State).get_interrupt_event()
handles = [self.handle, interrupt_event]
# do the wait
rwin32.ResetEvent(interrupt_event)
res = rwin32.WaitForMultipleObjects(handles, timeout=msecs)
if res != rwin32.WAIT_OBJECT_0 + 1:
break
# got SIGINT so give signal handler a chance to run
time.sleep(0.001)
# if this is main thread let KeyboardInterrupt be raised
_check_signals(space)
# recalculate timeout
if msecs != rwin32.INFINITE:
ticks = _GetTickCount()
if r_uint(ticks - start) >= full_msecs:
return False
msecs = r_uint(full_msecs - (ticks - start))
# handle result
if res != rwin32.WAIT_TIMEOUT:
return True
return False
def ll_delitem(func, l, index):
if func is dum_checkidx:
length = l.ll_length()
if r_uint(index) >= r_uint(length): # see comments in ll_getitem().
index = r_uint(index) + r_uint(length)
if index >= r_uint(length):
raise IndexError
index = intmask(index)
else:
if index < 0:
index += l.ll_length()
ll_assert(index >= 0, "negative list delitem index out of bound")
ll_delitem_nonneg(dum_nocheck, l, index)
def test_crc32_start_value():
"""
When called with a string and an integer, zlib.crc32 should compute the
CRC32 of the string using the integer as the starting value.
"""
assert rzlib.crc32('', 42) == r_uint(42)
assert rzlib.crc32('\0', 42) == r_uint(163128923)
assert rzlib.crc32('hello, world.', 42) == r_uint(1090960721)
hello = 'hello, '
hellocrc = rzlib.crc32(hello)
world = 'world.'
helloworldcrc = rzlib.crc32(world, hellocrc)
assert helloworldcrc == rzlib.crc32(hello + world)
def _string2uintlist(s, start=0, count=16):
"""Build a list of count r_uint's by unpacking the string
s[start:start+4*count] in little-endian order.
"""
result = []
for i in range(count):
p = start + i * 4
x = r_uint(ord(s[p]))
x |= r_uint(ord(s[p + 1])) << 8
x |= r_uint(ord(s[p + 2])) << 16
x |= r_uint(ord(s[p + 3])) << 24
result.append(x)
return result
