mirror of
https://github.com/johndoe6345789/typthon.git
synced 2026-04-24 21:55:26 +00:00
42e2356c88
Fixed several macros and constants that should not have been renamed: - _Py_CAST, _Py_NULL, _Py_RVALUE (internal utility macros) - Py_UNUSED (unused parameter macro) - Py_EQ, Py_NE, Py_LT, Py_LE, Py_GT, Py_GE (comparison constants) - Py_RETURN_* macros (NONE, TRUE, FALSE, NOTIMPLEMENTED, RICHCOMPARE) - Py_READONLY, Py_ULL, Py_CONTEXT_SWITCHED - TyGC_Head in generated clinic files Build is still in progress with some remaining issues to resolve. Co-authored-by: johndoe6345789 <224850594+johndoe6345789@users.noreply.github.com>
112 lines
2.5 KiB
C
112 lines
2.5 KiB
C
/* Test PEP 688 - Buffers */
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#include "parts.h"
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#include <stddef.h> // offsetof
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typedef struct {
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PyObject_HEAD
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TyObject *obj;
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Ty_ssize_t references;
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} testBufObject;
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#define testBufObject_CAST(op) ((testBufObject *)(op))
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static TyObject *
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testbuf_new(TyTypeObject *type, TyObject *args, TyObject *kwds)
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{
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TyObject *obj = TyBytes_FromString("test");
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if (obj == NULL) {
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return NULL;
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}
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testBufObject *self = (testBufObject *)type->tp_alloc(type, 0);
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if (self == NULL) {
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Ty_DECREF(obj);
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return NULL;
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}
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self->obj = obj;
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self->references = 0;
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return (TyObject *)self;
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}
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static int
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testbuf_traverse(TyObject *op, visitproc visit, void *arg)
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{
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testBufObject *self = testBufObject_CAST(op);
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Ty_VISIT(self->obj);
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return 0;
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}
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static int
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testbuf_clear(TyObject *op)
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{
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testBufObject *self = testBufObject_CAST(op);
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Ty_CLEAR(self->obj);
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return 0;
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}
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static void
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testbuf_dealloc(TyObject *op)
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{
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testBufObject *self = testBufObject_CAST(op);
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PyObject_GC_UnTrack(self);
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Ty_XDECREF(self->obj);
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Ty_TYPE(self)->tp_free(self);
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}
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static int
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testbuf_getbuf(TyObject *op, Ty_buffer *view, int flags)
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{
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testBufObject *self = testBufObject_CAST(op);
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int buf = PyObject_GetBuffer(self->obj, view, flags);
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if (buf == 0) {
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Ty_SETREF(view->obj, Ty_NewRef(self));
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self->references++;
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}
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return buf;
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}
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static void
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testbuf_releasebuf(TyObject *op, Ty_buffer *Py_UNUSED(view))
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{
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testBufObject *self = testBufObject_CAST(op);
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self->references--;
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assert(self->references >= 0);
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}
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static PyBufferProcs testbuf_as_buffer = {
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.bf_getbuffer = testbuf_getbuf,
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.bf_releasebuffer = testbuf_releasebuf,
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};
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static struct TyMemberDef testbuf_members[] = {
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{"references", Ty_T_PYSSIZET, offsetof(testBufObject, references), Py_READONLY},
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{NULL},
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};
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static TyTypeObject testBufType = {
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PyVarObject_HEAD_INIT(NULL, 0)
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.tp_name = "testBufType",
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.tp_basicsize = sizeof(testBufObject),
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.tp_flags = Ty_TPFLAGS_DEFAULT | Ty_TPFLAGS_HAVE_GC,
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.tp_new = testbuf_new,
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.tp_dealloc = testbuf_dealloc,
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.tp_traverse = testbuf_traverse,
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.tp_clear = testbuf_clear,
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.tp_as_buffer = &testbuf_as_buffer,
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.tp_members = testbuf_members
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};
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int
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_PyTestCapi_Init_Buffer(TyObject *m) {
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if (TyType_Ready(&testBufType) < 0) {
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return -1;
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}
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if (TyModule_AddObjectRef(m, "testBuf", (TyObject *)&testBufType)) {
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return -1;
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}
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return 0;
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}
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