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https://github.com/Motorhead1991/qemu.git
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8c80c472da
Use a trait to access the former parameters to device_class_init!. This allows hiding the details of the class_init implementation behind a generic function and makes higher-level functionality available from qemu_api. The implementation of ClassInitImpl is then the same for all devices and is easily macroized. Later on, we can remove the need to implement ClassInitImpl by hand for all device types, and stop making rust_device_class_init<>() public. While at it, document the members of DeviceImpl. Reviewed-by: Zhao Liu <zhao1.liu@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
70 lines
1.8 KiB
Rust
70 lines
1.8 KiB
Rust
// Copyright 2024, Linaro Limited
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// Author(s): Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
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// SPDX-License-Identifier: GPL-2.0-or-later
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use std::ffi::CStr;
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use qemu_api::{
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bindings::*,
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c_str, declare_properties, define_property,
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definitions::ObjectImpl,
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device_class::{self, DeviceImpl},
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impl_device_class,
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zeroable::Zeroable,
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};
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#[test]
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fn test_device_decl_macros() {
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// Test that macros can compile.
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pub static VMSTATE: VMStateDescription = VMStateDescription {
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name: c_str!("name").as_ptr(),
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unmigratable: true,
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..Zeroable::ZERO
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};
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#[derive(qemu_api_macros::offsets)]
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#[repr(C)]
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#[derive(qemu_api_macros::Object)]
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pub struct DummyState {
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pub _parent: DeviceState,
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pub migrate_clock: bool,
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}
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#[repr(C)]
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pub struct DummyClass {
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pub _parent: DeviceClass,
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}
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declare_properties! {
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DUMMY_PROPERTIES,
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define_property!(
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c_str!("migrate-clk"),
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DummyState,
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migrate_clock,
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unsafe { &qdev_prop_bool },
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bool
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),
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}
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impl ObjectImpl for DummyState {
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type Class = DummyClass;
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const TYPE_NAME: &'static CStr = c_str!("dummy");
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const PARENT_TYPE_NAME: Option<&'static CStr> = Some(device_class::TYPE_DEVICE);
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}
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impl DeviceImpl for DummyState {
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fn properties() -> &'static [Property] {
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&DUMMY_PROPERTIES
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}
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fn vmsd() -> Option<&'static VMStateDescription> {
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Some(&VMSTATE)
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}
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}
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impl_device_class!(DummyState);
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unsafe {
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module_call_init(module_init_type::MODULE_INIT_QOM);
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object_unref(object_new(DummyState::TYPE_NAME.as_ptr()).cast());
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}
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}
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