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Support @as_ptr in demarshaller to avoid copying data unnecessary

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This commit is contained in:
Alexander Larsson 2010-06-18 17:09:58 +02:00
parent 0b82006733
commit 7fa29ea67e
1 changed files with 13 additions and 1 deletions
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14
python_modules/demarshal.py
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@ -760,7 +760,19 @@ def write_member_parser(writer, container, member, dest, scope):
#TODO validate e.g. flags and enums
elif t.is_array():
nelements = read_array_len(writer, member.name, t, dest, scope, handles_bytes = True)
write_array_parser(writer, nelements, t, dest, scope)
if member.has_attr("as_ptr") and t.element_type.is_fixed_nw_size():
writer.comment("use array as pointer").newline()
writer.assign(dest.get_ref(member.name), "(%s *)in" % t.element_type.c_type())
len_var = member.attributes["as_ptr"]
if len(len_var) > 0:
writer.assign(dest.get_ref(len_var[0]), nelements)
el_size = t.element_type.get_fixed_nw_size()
if el_size != 1:
writer.increment("in", "%s * %s" % (nelements, el_size))
else:
writer.increment("in", "%s" % (nelements))
else:
write_array_parser(writer, nelements, t, dest, scope)
elif t.is_struct():
if member.has_end_attr():
dest2 = dest.child_at_end(writer, t)