Function sz_py_replace_u64_tape_allocator

python/stringzilla.c:637–669

}

static sz_bool_t sz_py_replace_u64_tape_allocator(Strs *strs, sz_memory_allocator_t *old_allocator,
                                                  sz_memory_allocator_t *allocator) {
    struct u64_tape_t *data = &strs->data.u64_tape;
    sz_assert_(data->offsets && "Expected offsets to be allocated");

    sz_size_t string_data_size = (sz_size_t)data->offsets[data->count];
    sz_size_t offsets_size = (data->count + 1) * sizeof(sz_u64_t);

    // Allocate new string data with new allocator
    sz_ptr_t new_string_data =
        string_data_size ? (sz_ptr_t)allocator->allocate(string_data_size, allocator->handle) : (sz_ptr_t)NULL;
    if (string_data_size && !new_string_data) return sz_false_k;
    memcpy(new_string_data, data->data, string_data_size);

    // Allocate new offsets array
    sz_u64_t *new_offsets =
        offsets_size ? (sz_u64_t *)allocator->allocate(offsets_size, allocator->handle) : (sz_u64_t *)NULL;
    if (offsets_size && !new_offsets) {
        if (string_data_size) allocator->free(new_string_data, string_data_size, allocator->handle);
        return sz_false_k;
    }
    memcpy(new_offsets, data->offsets, offsets_size);

    // Free old memory with old allocator (tapes always own their data)
    old_allocator->free(data->data, string_data_size, old_allocator->handle);
    old_allocator->free(data->offsets, offsets_size, old_allocator->handle);

    // Update pointers and allocator
    data->data = new_string_data;
    data->offsets = new_offsets;
    data->allocator = *allocator;
    return sz_true_k;
}

static sz_bool_t sz_py_replace_u32_tape_view_allocator(Strs *strs, sz_memory_allocator_t *allocator) {
    // Convert view to tape by copying the data