bpo-40834: Fix truncate when sending str object with channel (GH-20555)
(cherry picked from commit 29c117202e386bad1d66ae336e2fefa1a1809ee0)
Co-authored-by: An Long <aisk@users.noreply.github.com>
diff --git a/Lib/test/test__xxsubinterpreters.py b/Lib/test/test__xxsubinterpreters.py
index e17bfde..7aec021 100644
--- a/Lib/test/test__xxsubinterpreters.py
+++ b/Lib/test/test__xxsubinterpreters.py
@@ -378,6 +378,9 @@
self._assert_values(i.to_bytes(2, 'little', signed=True)
for i in range(-1, 258))
+ def test_strs(self):
+ self._assert_values(['hello world', '你好世界', ''])
+
def test_int(self):
self._assert_values(itertools.chain(range(-1, 258),
[sys.maxsize, -sys.maxsize - 1]))
diff --git a/Misc/NEWS.d/next/Library/2020-05-31-15-52-18.bpo-40834.MO9_hb.rst b/Misc/NEWS.d/next/Library/2020-05-31-15-52-18.bpo-40834.MO9_hb.rst
new file mode 100644
index 0000000..2727837
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2020-05-31-15-52-18.bpo-40834.MO9_hb.rst
@@ -0,0 +1 @@
+Fix truncate when sending str object with_xxsubinterpreters.channel_send.
\ No newline at end of file
diff --git a/Python/pystate.c b/Python/pystate.c
index 071b976..9beefa8 100644
--- a/Python/pystate.c
+++ b/Python/pystate.c
@@ -1708,7 +1708,7 @@
struct _shared_str_data *shared = PyMem_NEW(struct _shared_str_data, 1);
shared->kind = PyUnicode_KIND(obj);
shared->buffer = PyUnicode_DATA(obj);
- shared->len = PyUnicode_GET_LENGTH(obj) - 1;
+ shared->len = PyUnicode_GET_LENGTH(obj);
data->data = (void *)shared;
Py_INCREF(obj);
data->obj = obj; // Will be "released" (decref'ed) when data released.