Author: Ronan Lamy <[email protected]>
Branch:
Changeset: r92841:c2cf8296095b
Date: 2017-10-25 03:54 +0100
http://bitbucket.org/pypy/pypy/changeset/c2cf8296095b/
Log: ctypes: allow ptr[0] = foo when ptr is a pointer to struct
diff --git a/lib_pypy/_ctypes/basics.py b/lib_pypy/_ctypes/basics.py
--- a/lib_pypy/_ctypes/basics.py
+++ b/lib_pypy/_ctypes/basics.py
@@ -176,6 +176,10 @@
def _get_buffer_value(self):
return self._buffer[0]
+ def _copy_to(self, addr):
+ target = type(self).from_address(addr)._buffer
+ target[0] = self._get_buffer_value()
+
def _to_ffi_param(self):
if self.__class__._is_pointer_like():
return self._get_buffer_value()
diff --git a/lib_pypy/_ctypes/pointer.py b/lib_pypy/_ctypes/pointer.py
--- a/lib_pypy/_ctypes/pointer.py
+++ b/lib_pypy/_ctypes/pointer.py
@@ -114,7 +114,9 @@
cobj = self._type_.from_param(value)
if ensure_objects(cobj) is not None:
store_reference(self, index, cobj._objects)
- self._subarray(index)[0] = cobj._get_buffer_value()
+ address = self._buffer[0]
+ address += index * sizeof(self._type_)
+ cobj._copy_to(address)
def __nonzero__(self):
return self._buffer[0] != 0
diff --git a/lib_pypy/_ctypes/structure.py b/lib_pypy/_ctypes/structure.py
--- a/lib_pypy/_ctypes/structure.py
+++ b/lib_pypy/_ctypes/structure.py
@@ -291,6 +291,11 @@
def _get_buffer_value(self):
return self._buffer.buffer
+ def _copy_to(self, addr):
+ from ctypes import memmove
+ origin = self._get_buffer_value()
+ memmove(addr, origin, self._fficompositesize_)
+
def _to_ffi_param(self):
return self._buffer
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