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#ifndef LIBRT_STRINGS_H
#define LIBRT_STRINGS_H
#ifndef MYPYC_EXPERIMENTAL
static int
import_librt_strings(void)
{
// All librt.base64 features are experimental for now, so don't set up the API here
return 0;
}
#else // MYPYC_EXPERIMENTAL
// ABI version -- only an exact match is compatible. This will only be changed in
// very exceptional cases (likely never) due to strict backward compatibility
// requirements.
#define LIBRT_STRINGS_ABI_VERSION 0
// API version -- more recent versions must maintain backward compatibility, i.e.
// we can add new features but not remove or change existing features (unless
// ABI version is changed, but see the comment above).
#define LIBRT_STRINGS_API_VERSION 1
// Number of functions in the capsule API. If you add a new function, also increase
// LIBRT_STRINGS_API_VERSION.
#define LIBRT_STRINGS_API_LEN 9
static void *LibRTStrings_API[LIBRT_STRINGS_API_LEN];
#define LibRTStrings_ABIVersion (*(int (*)(void)) LibRTStrings_API[0])
#define LibRTStrings_APIVersion (*(int (*)(void)) LibRTStrings_API[1])
#define LibRTStrings_BytesWriter_internal (*(PyObject* (*)(void)) LibRTStrings_API[2])
#define LibRTStrings_BytesWriter_getvalue_internal (*(PyObject* (*)(PyObject *source)) LibRTStrings_API[3])
#define LibRTStrings_BytesWriter_append_internal (*(char (*)(PyObject *source, uint8_t value)) LibRTStrings_API[4])
#define LibRTStrings_BytesWriter_write_internal (*(char (*)(PyObject *source, PyObject *value)) LibRTStrings_API[5])
#define LibRTStrings_BytesWriter_type_internal (*(PyTypeObject* (*)(void)) LibRTStrings_API[6])
#define LibRTStrings_BytesWriter_len_internal (*(CPyTagged (*)(PyObject *self)) LibRTStrings_API[7])
#define LibRTStrings_BytesWriter_truncate_internal (*(char (*)(PyObject *self, int64_t size)) LibRTStrings_API[8])
static int
import_librt_strings(void)
{
PyObject *mod = PyImport_ImportModule("librt.strings");
if (mod == NULL)
return -1;
Py_DECREF(mod); // we import just for the side effect of making the below work.
void *capsule = PyCapsule_Import("librt.strings._C_API", 0);
if (capsule == NULL)
return -1;
memcpy(LibRTStrings_API, capsule, sizeof(LibRTStrings_API));
if (LibRTStrings_ABIVersion() != LIBRT_STRINGS_ABI_VERSION) {
char err[128];
snprintf(err, sizeof(err), "ABI version conflict for librt.strings, expected %d, found %d",
LIBRT_STRINGS_ABI_VERSION,
LibRTStrings_ABIVersion()
);
PyErr_SetString(PyExc_ValueError, err);
return -1;
}
if (LibRTStrings_APIVersion() < LIBRT_STRINGS_API_VERSION) {
char err[128];
snprintf(err, sizeof(err),
"API version conflict for librt.strings, expected %d or newer, found %d (hint: upgrade librt)",
LIBRT_STRINGS_API_VERSION,
LibRTStrings_APIVersion()
);
PyErr_SetString(PyExc_ValueError, err);
return -1;
}
return 0;
}
static inline bool CPyBytesWriter_Check(PyObject *obj) {
return Py_TYPE(obj) == LibRTStrings_BytesWriter_type_internal();
}
#endif // MYPYC_EXPERIMENTAL
#endif // LIBRT_STRINGS_H
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