f25b21537e
Added the UniffiAsyncCallHandler class. It follows the same basic pattern as UniffiSyncCallHandler, but for async calls. UniffiCallHandlerBase contains shared code between the two. Replaced `use_async_wrapper` with `call_style`, which returns 1 of three options rather than a boolean. This required a slight change to the async config for constructors. User now need to specify `Object.new` instead of `Object`. One upside is that it also allows configuring non-primary constructors. Added a test fixture for this. I used this fixture as an opportunity to sketch out how I think this would work with the application-services code and why this is an improvement over the current system for auto-generating async wrappers. Pass the buildconfig ENV when building the uniffi component libraries. We need this if we want to depend on crates like `moz_task`. Differential Revision: https://phabricator.services.mozilla.com/D227553
72 lines
2.2 KiB
C++
72 lines
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
|
|
* You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef mozilla_UniFFIRust_h
|
|
#define mozilla_UniFFIRust_h
|
|
|
|
#include <stdint.h>
|
|
|
|
namespace mozilla::uniffi {
|
|
|
|
// Low-level Rust structs for UniFFI
|
|
|
|
// RustCallStatus.code values
|
|
constexpr int8_t RUST_CALL_SUCCESS = 0;
|
|
constexpr int8_t RUST_CALL_ERROR = 1;
|
|
constexpr int8_t RUST_CALL_INTERNAL_ERROR = 2;
|
|
|
|
// Future continutation code values
|
|
constexpr int8_t UNIFFI_FUTURE_READY = 0;
|
|
constexpr int8_t UNIFFI_FUTURE_MAYBE_READY = 1;
|
|
|
|
// Return values for callback interfaces (See
|
|
// https://github.com/mozilla/uniffi-rs/blob/main/uniffi_core/src/ffi/foreigncallbacks.rs
|
|
// for details)
|
|
constexpr int8_t CALLBACK_INTERFACE_SUCCESS = 0;
|
|
constexpr int8_t CALLBACK_INTERFACE_ERROR = 1;
|
|
constexpr int8_t CALLBACK_INTERFACE_UNEXPECTED_ERROR = 2;
|
|
|
|
// structs/functions from UniFFI
|
|
extern "C" {
|
|
struct RustBuffer {
|
|
uint64_t capacity;
|
|
uint64_t len;
|
|
uint8_t* data;
|
|
};
|
|
|
|
struct ForeignBytes {
|
|
int32_t len;
|
|
uint8_t* data;
|
|
};
|
|
|
|
struct RustCallStatus {
|
|
int8_t code;
|
|
RustBuffer error_buf;
|
|
};
|
|
|
|
typedef int (*ForeignCallback)(uint64_t handle, uint32_t method,
|
|
const uint8_t* argsData, int32_t argsLen,
|
|
RustBuffer* buf_ptr);
|
|
|
|
typedef void (*FutureCallback)(uint64_t futureHandle, int8_t code);
|
|
// Poll a future.
|
|
//
|
|
// If the future is ready, then `futureCallback` will be called with
|
|
// `UNIFFI_FUTURE_READY` If the future is pending, then `futureCallback` will be
|
|
// called with `UNIFFI_FUTURE_MAYBE_READY` when the Rust waker is invoked.
|
|
typedef void (*PollFutureFn)(uint64_t futureHandle, FutureCallback callback,
|
|
uint64_t callback_data);
|
|
// Free a future
|
|
typedef void (*FreeFutureFn)(uint64_t futureHandle);
|
|
|
|
RustBuffer uniffi_rustbuffer_alloc(uint64_t size, RustCallStatus* call_status);
|
|
void uniffi_rustbuffer_free(RustBuffer buf, RustCallStatus* call_status);
|
|
}
|
|
|
|
} // namespace mozilla::uniffi
|
|
|
|
#endif /* mozilla_UniFFIRust_h */
|