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Steps towards Python 3.11 support #3231

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merged 2 commits into from
Feb 7, 2022
Merged

Steps towards Python 3.11 support #3231

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c742f9f
Add Python 3.11 support
vstinner Jan 26, 2022
a276984
Move pythoncapi_compat.h in src/core/lib/
vstinner Feb 3, 2022
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9 changes: 5 additions & 4 deletions src/core/buffer.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@
#include <cstring> // std::strerror, std::memcpy
#include <mutex> // std::mutex, std::lock_guard
#include "buffer.h"
#include "lib/pythoncapi_compat.h" // Py_SET_REFCNT()
#include "mmm.h" // MemoryMapWorker, MemoryMapManager
#include "python/pybuffer.h" // py::buffer
#include "utils/alloc.h" // dt::malloc, dt::realloc
Expand Down Expand Up @@ -235,7 +236,7 @@ class BufferImpl
PyObject** elements = static_cast<PyObject**>(data_);
for (size_t i = 0; i < n; ++i) {
XAssert(elements[i] != nullptr);
XAssert(elements[i]->ob_refcnt > 0);
XAssert(Py_REFCNT(elements[i]) > 0);
}
}
}
Expand Down Expand Up @@ -929,7 +930,7 @@ class Mmap_BufferImpl : public BufferImpl, MemoryMapWorker {
for (size_t i = 0; i < n; ++i) {
data[i] = Py_None;
}
Py_None->ob_refcnt += n;
Py_SET_REFCNT(Py_None, Py_REFCNT(Py_None) + n);
}
impl_->contains_pyobjects_ = true;
return *this;
Expand All @@ -954,7 +955,7 @@ class Mmap_BufferImpl : public BufferImpl, MemoryMapWorker {
if (n_new > n_old) {
PyObject** data = static_cast<PyObject**>(xptr());
for (size_t i = n_old; i < n_new; ++i) data[i] = Py_None;
Py_None->ob_refcnt += n_new - n_old;
Py_SET_REFCNT(Py_None, Py_REFCNT(Py_None) + n_new - n_old);
}
} else {
impl_->resize(newsize);
Expand Down Expand Up @@ -1018,7 +1019,7 @@ class Mmap_BufferImpl : public BufferImpl, MemoryMapWorker {
size_t i = 0;
for (; i < n_copy; ++i) Py_INCREF(newdata[i]);
for (; i < n_new; ++i) newdata[i] = Py_None;
Py_None->ob_refcnt += n_new - n_copy;
Py_SET_REFCNT(Py_None, Py_REFCNT(Py_None) + n_new - n_copy);
}
impl_->release(); // noexcept
}
Expand Down
5 changes: 3 additions & 2 deletions src/core/column/const_na.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//------------------------------------------------------------------------------
#include "lib/pythoncapi_compat.h" // Py_SET_REFCNT()
#include "column/const.h"
#include "column/sentinel_fw.h"
#include "column/sentinel_str.h"
Expand Down Expand Up @@ -84,7 +85,7 @@ static Column _fw_col(size_t nrows, SType stype) {
});

if (std::is_same<T, PyObject*>::value) {
Py_None->ob_refcnt += nrows;
Py_SET_REFCNT(Py_None, Py_REFCNT(Py_None) + nrows);
buf.set_pyobjects(/* clear_data= */ false);
}
return Column(new ColClass(nrows, stype, std::move(buf)));
Expand All @@ -101,7 +102,7 @@ static Column _special_col(size_t nrows) {
});

if (std::is_same<T, PyObject*>::value) {
Py_None->ob_refcnt += nrows;
Py_SET_REFCNT(Py_None, Py_REFCNT(Py_None) + nrows);
buf.set_pyobjects(/* clear_data= */ false);
}
return Column(new ColClass(nrows, std::move(buf)));
Expand Down
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