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added status, base64, randbytes redesign to minimize hw calls

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This commit is contained in:
Newton Winter 2020-12-26 03:54:01 +03:00
parent cb57e489ad
commit 3fe4b5be81
3 changed files with 77 additions and 22 deletions
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25
quanttp/data/qng_wrapper_linux.py
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@ -35,6 +35,8 @@ class QngWrapperLinux:
self._qwqng_wrapper.RandNormal.restype = c_double
self._qwqng_wrapper.RandBytes.argtypes = [c_void_p, c_int]
self._qwqng_wrapper.RandBytes.restype = POINTER(c_char)
self._qwqng_wrapper.StatusString.argtypes = [c_void_p]
self._qwqng_wrapper.StatusString.restype = POINTER(c_char)
self._qwqng_wrapper.DeviceID.argtypes = [c_void_p]
self._qwqng_wrapper.DeviceID.restype = POINTER(c_char)
self._qwqng_wrapper.Clear.argtypes = [c_void_p]
@ -47,6 +49,13 @@ class QngWrapperLinux:
except:
self._qwqng_wrapper.Reset(self._qng_pointer)
return cast(self._qwqng_wrapper.DeviceID(self._qng_pointer), c_char_p).value.decode("utf-8")
def statusString(self):
try:
return cast(self._qwqng_wrapper.StatusString(self._qng_pointer), c_char_p).value.decode("utf-8")
except:
self._qwqng_wrapper.Reset(self._qng_pointer)
return cast(self._qwqng_wrapper.StatusString(self._qng_pointer), c_char_p).value.decode("utf-8")
def randint32(self):
try:
@ -77,16 +86,14 @@ class QngWrapperLinux:
return self._randbytes_arbitrary_length(length)
def _randbytes_arbitrary_length(self, length):
if length <= 8192:
try:
return self._qwqng_wrapper.RandBytes(self._qng_pointer, length)[:length]
else:
data = bytearray()
for x in range(length // 8192):
data.extend(self._qwqng_wrapper.RandBytes(self._qng_pointer, 8192)[:8192])
bytes_needed = length % 8192
if bytes_needed != 0:
data.extend(self._qwqng_wrapper.RandBytes(self._qng_pointer, bytes_needed)[:bytes_needed])
return bytes(data)
except:
self._qwqng_wrapper.Reset(self._qng_pointer)
def clear(self):
self._qwqng_wrapper.Clear(self._qng_pointer)
def reset(self):
self._qwqng_wrapper.Reset(self._qng_pointer)