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LightGBM
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[python-package] remove unnecessary allocations in ctypes code (#6111)

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James Lamb 2023-09-25 10:50:35 -05:00 коммит произвёл GitHub
Родитель 7c9a985a47
Коммит 60a4a13e72
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Идентификатор ключа GPG: 4AEE18F83AFDEB23
1 изменённых файлов: 8 добавлений и 8 удалений
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16
python-package/lightgbm/basic.py
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@ -479,7 +479,7 @@ class _ConfigAliases:
buffer_len = 1 << 20
tmp_out_len = ctypes.c_int64(0)
string_buffer = ctypes.create_string_buffer(buffer_len)
ptr_string_buffer = ctypes.c_char_p(*[ctypes.addressof(string_buffer)])
ptr_string_buffer = ctypes.c_char_p(ctypes.addressof(string_buffer))
_safe_call(_LIB.LGBM_DumpParamAliases(
ctypes.c_int64(buffer_len),
ctypes.byref(tmp_out_len),
@ -488,7 +488,7 @@ class _ConfigAliases:
# if buffer length is not long enough, re-allocate a buffer
if actual_len > buffer_len:
string_buffer = ctypes.create_string_buffer(actual_len)
ptr_string_buffer = ctypes.c_char_p(*[ctypes.addressof(string_buffer)])
ptr_string_buffer = ctypes.c_char_p(ctypes.addressof(string_buffer))
_safe_call(_LIB.LGBM_DumpParamAliases(
ctypes.c_int64(actual_len),
ctypes.byref(tmp_out_len),
@ -3315,7 +3315,7 @@ class Booster:
buffer_len = 1 << 20
tmp_out_len = ctypes.c_int64(0)
string_buffer = ctypes.create_string_buffer(buffer_len)
ptr_string_buffer = ctypes.c_char_p(*[ctypes.addressof(string_buffer)])
ptr_string_buffer = ctypes.c_char_p(ctypes.addressof(string_buffer))
_safe_call(_LIB.LGBM_BoosterGetLoadedParam(
self._handle,
ctypes.c_int64(buffer_len),
@ -3325,7 +3325,7 @@ class Booster:
# if buffer length is not long enough, re-allocate a buffer
if actual_len > buffer_len:
string_buffer = ctypes.create_string_buffer(actual_len)
ptr_string_buffer = ctypes.c_char_p(*[ctypes.addressof(string_buffer)])
ptr_string_buffer = ctypes.c_char_p(ctypes.addressof(string_buffer))
_safe_call(_LIB.LGBM_BoosterGetLoadedParam(
self._handle,
ctypes.c_int64(actual_len),
@ -4078,7 +4078,7 @@ class Booster:
buffer_len = 1 << 20
tmp_out_len = ctypes.c_int64(0)
string_buffer = ctypes.create_string_buffer(buffer_len)
ptr_string_buffer = ctypes.c_char_p(*[ctypes.addressof(string_buffer)])
ptr_string_buffer = ctypes.c_char_p(ctypes.addressof(string_buffer))
_safe_call(_LIB.LGBM_BoosterSaveModelToString(
self._handle,
ctypes.c_int(start_iteration),
@ -4091,7 +4091,7 @@ class Booster:
# if buffer length is not long enough, re-allocate a buffer
if actual_len > buffer_len:
string_buffer = ctypes.create_string_buffer(actual_len)
ptr_string_buffer = ctypes.c_char_p(*[ctypes.addressof(string_buffer)])
ptr_string_buffer = ctypes.c_char_p(ctypes.addressof(string_buffer))
_safe_call(_LIB.LGBM_BoosterSaveModelToString(
self._handle,
ctypes.c_int(start_iteration),
@ -4146,7 +4146,7 @@ class Booster:
buffer_len = 1 << 20
tmp_out_len = ctypes.c_int64(0)
string_buffer = ctypes.create_string_buffer(buffer_len)
ptr_string_buffer = ctypes.c_char_p(*[ctypes.addressof(string_buffer)])
ptr_string_buffer = ctypes.c_char_p(ctypes.addressof(string_buffer))
_safe_call(_LIB.LGBM_BoosterDumpModel(
self._handle,
ctypes.c_int(start_iteration),
@ -4159,7 +4159,7 @@ class Booster:
# if buffer length is not long enough, reallocate a buffer
if actual_len > buffer_len:
string_buffer = ctypes.create_string_buffer(actual_len)
ptr_string_buffer = ctypes.c_char_p(*[ctypes.addressof(string_buffer)])
ptr_string_buffer = ctypes.c_char_p(ctypes.addressof(string_buffer))
_safe_call(_LIB.LGBM_BoosterDumpModel(
self._handle,
ctypes.c_int(start_iteration),