Author: Maciej Fijalkowski <[email protected]>
Branch:
Changeset: r71800:ac52eb7bbbb0
Date: 2014-06-02 09:35 +0200
http://bitbucket.org/pypy/pypy/changeset/ac52eb7bbbb0/
Log: A way to get an address from str
diff --git a/rpython/rtyper/lltypesystem/rffi.py
b/rpython/rtyper/lltypesystem/rffi.py
--- a/rpython/rtyper/lltypesystem/rffi.py
+++ b/rpython/rtyper/lltypesystem/rffi.py
@@ -1136,3 +1136,12 @@
lltype.Void,
releasegil=False
)
+
+from rpython.rtyper.annlowlevel import llstr
+from rpython.rtyper.lltypesystem.rstr import STR
+
+def get_buffer_from_str(data):
+ lldata = llstr(data)
+ data_start = cast_ptr_to_adr(lldata) + \
+ offsetof(STR, 'chars') + itemoffsetof(STR.chars, 0)
+ return cast(CCHARP, data_start)
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