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gh-69093: Add mapping protocol support to sqlite3.Blob #91599

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Merged
JelleZijlstra merged 10 commits into from
Apr 22, 2022
Merged

gh-69093: Add mapping protocol support to sqlite3.Blob #91599

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38b2cdb
gh-69093: Add mapping protocol support to sqlite3.Blob
Apr 16, 2022
8bc5762
Merge branch 'main' into sqlite-blob-add-mapping-protocol
Apr 16, 2022
86e324a
Cast
Apr 16, 2022
37a5c38
Assert lenght and offset
Apr 16, 2022
a179749
Accept all buffer objects
Apr 16, 2022
ed6a9b6
Address review: reword docs and modify example
Apr 18, 2022
233f940
bugfix: use correct offset in inner read/write
Apr 18, 2022
9cbc339
Update Misc/NEWS.d/next/Library/2022-04-14-01-00-31.gh-issue-69093.bm…
Apr 19, 2022
7df4b9d
Address review: verify writes
Apr 19, 2022
cb2619e
Address review: Py_ssize_t iso. int
Apr 19, 2022
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Assert lenght and offset
  • Loading branch information
Erlend E. Aasland committed Apr 16, 2022
commit 37a5c38c6ce5a922493e4cea7a8e5a9267263855
4 changes: 4 additions & 0 deletions Modules/_sqlite/blob.c
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Original file line number Diff line number Diff line change
Expand Up @@ -122,6 +122,9 @@ blob_seterror(pysqlite_Blob *self, int rc)
static PyObject *
inner_read(pysqlite_Blob *self, Py_ssize_t length, Py_ssize_t offset)
{
assert(length <= sqlite3_blob_bytes(self->blob));
assert(offset <= sqlite3_blob_bytes(self->blob) - self->offset);

PyObject *buffer = PyBytes_FromStringAndSize(NULL, length);
if (buffer == NULL) {
return NULL;
Expand Down Expand Up @@ -191,6 +194,7 @@ inner_write(pysqlite_Blob *self, const void *buf, Py_ssize_t len,
return -1;
}

assert(offset <= remaining_len);
int rc;
Py_BEGIN_ALLOW_THREADS
rc = sqlite3_blob_write(self->blob, buf, (int)len, (int)offset);
Expand Down