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| author | Antoine Pitrou <solipsis@pitrou.net> | 2011-05-12 22:31:52 (GMT) |
|---|---|---|
| committer | Antoine Pitrou <solipsis@pitrou.net> | 2011-05-12 22:31:52 (GMT) |
| commit | ee46a7bf9cf60a318d868c5a4c55ee5020c416d4 (patch) | |
| tree | b9cf21311638e6cb05073e5678be288b68e09617 /Modules | |
| parent | 073070629bfd8162bf969da961e929366d1d8f7c (diff) | |
| download | cpython-ee46a7bf9cf60a318d868c5a4c55ee5020c416d4.zip cpython-ee46a7bf9cf60a318d868c5a4c55ee5020c416d4.tar.gz cpython-ee46a7bf9cf60a318d868c5a4c55ee5020c416d4.tar.bz2 | |
Issue #12062: In the `io` module, fix a flushing bug when doing a certain
type of I/O sequence on a file opened in read+write mode (namely: reading,
seeking a bit forward, writing, then seeking before the previous write but
still within buffered data, and writing again).
Diffstat (limited to 'Modules')
| -rw-r--r-- | Modules/_io/bufferedio.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Modules/_io/bufferedio.c b/Modules/_io/bufferedio.c index 5816a93..144aea2 100644 --- a/Modules/_io/bufferedio.c +++ b/Modules/_io/bufferedio.c @@ -1810,7 +1810,7 @@ bufferedwriter_write(buffered *self, PyObject *args) avail = Py_SAFE_DOWNCAST(self->buffer_size - self->pos, Py_off_t, Py_ssize_t); if (buf.len <= avail) { memcpy(self->buffer + self->pos, buf.buf, buf.len); - if (!VALID_WRITE_BUFFER(self)) { + if (!VALID_WRITE_BUFFER(self) || self->write_pos > self->pos) { self->write_pos = self->pos; } ADJUST_POSITION(self, self->pos + buf.len); |