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| author | Kevin Buettner <kevinb@redhat.com> | 2019-02-16 17:33:47 -0700 |
|---|---|---|
| committer | Kevin Buettner <kevinb@redhat.com> | 2019-02-26 10:21:22 -0700 |
| commit | 26c897821b37af894088ec5731f93dc82e79b6d4 (patch) | |
| tree | b183358632ec4c6816525b0da8473c2f505f0f6c | |
| parent | c31307f9c5022205aaf2dff591457ac8b5c1342d (diff) | |
| download | gdb-26c897821b37af894088ec5731f93dc82e79b6d4.zip gdb-26c897821b37af894088ec5731f93dc82e79b6d4.tar.gz gdb-26c897821b37af894088ec5731f93dc82e79b6d4.tar.bz2 | |
Define unique_ptr specialization for Py_buffer.
This patch causes PyBuffer_Release() to be called when the associated
buffer goes out of scope. I've been using it as follows:
...
Py_buffer_up buffer_up;
Py_buffer py_buf;
if (PyObject_CheckBuffer (obj)
&& PyObject_GetBuffer (obj, &py_buf, PyBUF_SIMPLE) == 0)
{
/* Got a buffer, py_buf, out of obj. Cause it to released
when it goes out of scope. */
buffer_up.reset (&py_buf);
}
...
This snippet of code was taken directly from an upcoming patch to
python-value.c.
gdb/ChangeLog:
* python/python-internal.h (Py_buffer_deleter): New struct.
(Py_buffer_up): New typedef.
| -rw-r--r-- | gdb/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/python/python-internal.h | 13 |
2 files changed, 18 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 879ad6a..f311a24 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,8 @@ +2019-02-26 Kevin Buettner <kevinb@redhat.com> + + * python/python-internal.h (Py_buffer_deleter): New struct. + (Py_buffer_up): New typedef. + 2019-02-25 John Baldwin <jhb@FreeBSD.org> * dwarf2read.c (dwarf2_get_dwz_file): Reset dwz_bfd to nullptr diff --git a/gdb/python/python-internal.h b/gdb/python/python-internal.h index 3cb9ebc..d11af83 100644 --- a/gdb/python/python-internal.h +++ b/gdb/python/python-internal.h @@ -801,4 +801,17 @@ struct varobj; struct varobj_iter *py_varobj_get_iterator (struct varobj *var, PyObject *printer); +/* Deleter for Py_buffer unique_ptr specialization. */ + +struct Py_buffer_deleter +{ + void operator() (Py_buffer *b) const + { + PyBuffer_Release (b); + } +}; + +/* A unique_ptr specialization for Py_buffer. */ +typedef std::unique_ptr<Py_buffer, Py_buffer_deleter> Py_buffer_up; + #endif /* PYTHON_PYTHON_INTERNAL_H */ |