def test_scalar_pointer_access_local(ljit, T):
ljit.reset()
with Type.alias(T=T):
arr = np.array([1, 2, 3, 4], dtype=T)
arr2 = np.array([11, 12, 13, 14], dtype=T)
ptr = ctypes.c_void_p(arr.__array_interface__['data'][0])
@ljit('T(T* x, int i)')
def pitem(x, i):
return x[i]
@ljit('void(T* x, int i, T)')
def sitem(x, i, v):
x[i] = v
for i in range(len(arr)):
v = pitem(ptr, i)
assert v == arr[i]
for i in range(len(arr)):
sitem(ptr, i, arr2[i])
assert (arr == arr2).all()
def test(s, caller=False):
with heavydb.targets['cpu']:
with Type.alias(**heavydb.typesystem_aliases):
typ = Type.fromobject(s)
if caller:
typ = heavydb.caller_signature(typ)
return heavydb.format_type(typ)
def test_scalar_pointer_access_remote(rjit, memman, T):
rjit.reset()
calloc_prototype, free_prototype = memory_managers[memman]
with Type.alias(T=T):
arr = np.array([1, 2, 3, 4], dtype=T)
arr2 = np.array([11, 12, 13, 14], dtype=T)
calloc = external(calloc_prototype)
free = external(free_prototype)
@rjit(calloc_prototype)
def rcalloc(nmemb, size):
return calloc(nmemb, size)
@rjit(free_prototype)
def rfree(ptr):
return free(ptr)
@rjit('T(T* x, int i)')
def pitem(x, i):
return x[i]
@rjit('void(T* x, int i, T)')
def sitem(x, i, v):
x[i] = v
ptr = rcalloc(arr.itemsize, len(arr))
assert ptr.value
for i in range(len(arr)):
sitem(ptr, i, arr[i])
for i in range(len(arr2)):
arr2[i] = pitem(ptr, i)
rfree(ptr)
assert (arr == arr2).all()
def test_struct_double_pointer_members(ljit, rjit, location, T):
jit = rjit if location == 'remote' else ljit
jit.reset()
index_t = 'int32'
S = '{T** data, index_t length, index_t size}'
S1 = '{T* data, index_t size}'
with Type.alias(T=T, S=S, S1=S1, index_t=index_t):
Sp = S + '*'
S1p = S1 + '*'
Tp = T + '*'
Tpp = T + '**'
nb_S = Type.fromstring(S).tonumba()
nb_Sp = Type.fromstring(Sp).tonumba()
nb_S1 = Type.fromstring(S1).tonumba()
nb_S1p = Type.fromstring(S1p).tonumba()
nb_T = Type.fromstring(T).tonumba()
nb_Tp = Type.fromstring(Tp).tonumba()
nb_Tpp = Type.fromstring(Tpp).tonumba()
rcalloc, rfree = map(external, memory_managers['cstdlib'])
@jit('S* allocate_S(size_t length, size_t size)')
def allocate_S(length, size):
s = rcalloc(1, sizeof(nb_S)).cast(nb_Sp)
s.data = rcalloc(length, sizeof(nb_Tp)).cast(nb_Tpp)
s.length = length
for i in range(length):
s.data[i] = rcalloc(size, sizeof(nb_T)).cast(nb_Tp)
s.size = size
return s
@jit('void deallocate_S(S*)')
def deallocate_S(s):
if s.length > 0:
for i in range(s.length):
rfree(s.data[i])
rfree(s.data)
rfree(s)
@jit('S1* viewitem(S*, index_t)')
def viewitem(s, i):
s1 = rcalloc(1, sizeof(nb_S1)).cast(nb_S1p)
if i >= 0 and i < s.size:
s1.size = s.size
s1.data = s.data[i]
else:
s1.size = 0
return s1
@jit('T getitem(S*, index_t, index_t)')
def getitem(s, col, row):
if col >= 0 and col < s.length:
if row >= 0 and row < s.size:
return s.data[col][row]
return 0
@jit('void free(S1*)')
def free(s1):
rfree(s1)
@jit('void fill1(S1*, T)')
def fill1(s1, v):
for i in range(s1.size):
s1.data[i] = v
@jit('void range1(S1*)')
def range1(s1):
for i in range(s1.size):
s1.data[i] = i
m, n = 4, 5
s = allocate_S(m, n)
# initialize
expected = []
for col in range(m):
s1 = viewitem(s, col)
if col % 2:
expected.extend(n * [23+col*10])
fill1(s1, 23+col*10)
else:
expected.extend(range(n))
range1(s1)
free(s1)
# check
actual = []
for col in range(m):
for row in range(n):
actual.append(getitem(s, col, row))
deallocate_S(s)
assert expected == actual
def test_struct_pointer_members(ljit, rjit, location, T):
jit = rjit if location == 'remote' else ljit
jit.reset()
index_t = 'int32'
S = '{T* data, index_t size}'
with Type.alias(T=T, S=S, index_t=index_t):
Sp = S + '*'
nb_S = Type.fromstring(S).tonumba()
nb_Sp = Type.fromstring(Sp).tonumba()
nb_T = Type.fromstring(T).tonumba()
rcalloc, rfree = map(external, memory_managers['cstdlib'])
@jit('S* allocate_S(size_t i)')
def allocate_S(i):
raw = rcalloc(i, sizeof(nb_S))
s = cast(raw, nb_Sp) # cast `void*` to `S*`
# s = raw.cast(Sp) # cast `void*` to `S*`
s.size = 0
return s
@jit('void free(void*)')
def free(s):
rfree(s)
@jit('index_t getsize(S*)')
def getsize(s):
return s.size
@jit('T getitem(S*, index_t)')
def getitem(s, i):
if i >= 0 and i < s.size:
return s.data[i]
return 0 # TODO: return some null value or raise exception
@jit('void resize_S(S*, index_t)')
def resize_S(s, size):
if s.size == size:
return
if s.size != 0:
rfree(s.data)
s.size = 0
if s.size == 0 and size > 0:
raw = rcalloc(size, sizeof(nb_T))
s.data = raw
s.size = size
s = allocate_S(1)
assert getsize(s) == 0
assert getitem(s, 0) == 0
n = 10
resize_S(s, n)
assert getsize(s) == n
n = 5
resize_S(s, n)
assert getsize(s) == n
@jit('void fill_S(S*, T)')
def fill_S(s, v):
for i in range(s.size):
s.data[i] = v
fill_S(s, 123)
assert getitem(s, 0) == 123
@jit('void range_S(S*)')
def range_S(s):
for i in range(s.size):
s.data[i] = i
range_S(s)
for i in range(getsize(s)):
assert getitem(s, i) == i
resize_S(s, 0) # deallocate data
free(s) # deallocate struct
def test_struct_input(ljit, rjit, location, T):
jit = rjit if location == 'remote' else ljit
jit.reset()
S = '{T x, T y, T z}'
with Type.alias(T=T, S=S):
nb_S = Type.fromstring(S).tonumba()
nb_T = Type.fromstring(T).tonumba()
class MetaMyStructType(type):
@property
def __typesystem_type__(cls):
# Python type dependent type
return Type.fromstring(S) | type(cls).__name__
class MyStruct(tuple, metaclass=MetaMyStructType):
@property
def __typesystem_type__(self):
# Python instance dependent Type
return Type.fromstring(S) | type(self).__name__
@classmethod
def fromobject(cls, obj):
return cls([getattr(obj, m.name) for m in cls.__typesystem_type__])
def __getattr__(self, name):
typ = self.__typesystem_type__
index = typ.get_field_position(name)
return self[index]
x, y, z = 123, 2, 3
s = MyStruct((x, y, z))
assert type(s).__typesystem_type__ == s.__typesystem_type__
assert type(s).__typesystem_type__.annotation() != s.__typesystem_type__.annotation()
# Get the members of struct given by value and reference
@jit('T(S)', 'T(S*)')
def get_x(s): return s.x
@jit('T(S)', 'T(S*)')
def get_y(s): return s.y
@jit('T(S)', 'T(S*)')
def get_z(s): return s.z
assert get_x(s) == x
assert get_y(s) == y
assert get_z(s) == z
# Set the members of struct given by reference
# Manage memory of the arrays with struct values
rcalloc, rfree = map(external, memory_managers['cstdlib'])
@jit('S* allocate_S(size_t i)')
def allocate_S(i):
return rcalloc(i, sizeof(nb_S))
@jit('void free(void*)')
def free(s):
rfree(s)
@jit('void set_x(S*, T)')
def set_x(s, x):
s.x = x
@jit('void set_y(S*, T)')
def set_y(s, y):
s.y = y
@jit('void set_z(S*, T)')
def set_z(s, z):
s.z = z
p = allocate_S(1)
set_x(p, x)
assert get_x(p) == x
set_y(p, y)
assert get_y(p) == y
set_z(p, z)
assert get_z(p) == z
free(p)
@jit('size_t sizeof_S(S)', 'size_t sizeof_S(S*)', 'size_t sizeof_T(T)')
def sizeof_S(s):
return sizeof(s)
assert sizeof_S(s) == sizeof_S(nb_T(0)) * 3
assert sizeof_S(p) == 8
# Pointer arithmetics and getitem
@jit('void(S*, int64)')
def init_S(s, n):
s.x = 8
for i in range(n):
si = s + i # pointer arithmetics
si.x = i
si.y = i*10
si.z = i*20
@jit('void(S*, int64)')
def init_S2(s, n):
s.x = 8
for i in range(n):
# `s[i]` is equivalent to `s + i`! That is, the result
# of `s[i]` is a pointer value `S*` rather than a
# value of `S`.
si = s[i]
si.x = i*5
si.y = i*15
si.z = i*25
@jit('S*(S*)')
def next_S(s):
return s + 1
n = 5
p = allocate_S(n)
init_S(p, n)
r = p
for i in range(n):
assert (get_x(r), get_y(r), get_z(r)) == (i, i*10, i*20)
r = next_S(r)
init_S2(p, n)
r = p
for i in range(n):
assert (get_x(r), get_y(r), get_z(r)) == (i*5, i*15, i*25)
r = next_S(r)
free(p)
def test_scalar_pointer_conversion(rjit, T, V):
rjit.reset()
with Type.alias(T=T, V=V, intp='int64'):
# pointer-intp conversion
@rjit('T*(intp a)')
def i2p(a):
return a
@rjit('V*(intp a)')
def i2r(a):
return a
@rjit('intp(T* a)')
def p2i(a):
return a
@rjit('intp(V* a)')
def r2i(a):
return a
@rjit('T*(T* a)')
def p2p(a):
return a
@rjit('T*(V* a)')
def p2r(a):
return a
@rjit('V*(T* a)')
def r2p(a):
return a
# pointer artithmetics
@rjit('T*(T* a, intp i)')
def padd(a, i):
return a + i
@rjit('T*(T* a)')
def pincr(a):
return a + 1
if T == V:
i = 79
p = i2p(i)
assert not isinstance(p, int), (type(p), p)
assert ctypes.cast(p, ctypes.c_void_p).value == i
i2 = p2i(p)
assert i2 == i
p2 = p2p(p)
assert ctypes.cast(p2, ctypes.c_void_p).value == ctypes.cast(p, ctypes.c_void_p).value
assert p2i(padd(p, 2)) == i + 2
assert p2i(pincr(p)) == i + 1
if 'void' in [T, V]:
i = 85
r = i2r(i)
assert not isinstance(r, int), (type(r), r)
assert ctypes.cast(r, ctypes.c_void_p).value == i
p2 = r2p(r)
assert p2i(p2) == i
assert p2i(p2r(i2p(i))) == i
# double pointer-intp conversion
@rjit('T**(intp a)')
def i2pp(a):
return a
@rjit('V**(intp a)')
def i2rr(a):
return a
@rjit('intp(T** a)')
def pp2i(a):
return a
@rjit('intp(V** a)')
def rr2i(a):
return a
@rjit('T**(T** a)')
def pp2pp(a):
return a
@rjit('T**(T** a, intp i)')
def ppadd(a, i):
return a + i
@rjit('T**(T** a)')
def ppincr(a):
return a + 1
if T == V:
i = 89
pp = i2pp(i)
assert ctypes.cast(pp, ctypes.c_void_p).value == i
i2 = pp2i(pp)
assert i2 == i
pp2 = pp2pp(pp)
assert ctypes.cast(pp2, ctypes.c_void_p).value == ctypes.cast(
pp, ctypes.c_void_p).value
assert pp2i(ppadd(pp, 2)) == i + 2
assert pp2i(ppincr(pp)) == i + 1
# double pointer-pointer conversion
@rjit('T**(T* a)')
def p2pp(a):
return a
@rjit('T*(T** a)')
def pp2p(a):
return a
# mixed pointer conversion requires void*
@rjit('T**(V* a)')
def r2pp(a):
return a
@rjit('V*(T** a)')
def pp2r(a):
return a
if T == V == 'void':
i = 99
p = i2p(i)
pp = p2pp(p)
assert pp2i(pp) == i
assert p2i(pp2p(pp)) == i
if V == 'void':
i = 105
assert r2i(pp2r(i2pp(i))) == i
assert pp2i(r2pp(i2r(i))) == i
