88 lines
2.8 KiB
C++
88 lines
2.8 KiB
C++
// Copyright 2023 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef BASE_FUCHSIA_FIDL_EVENT_HANDLER_H_
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#define BASE_FUCHSIA_FIDL_EVENT_HANDLER_H_
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#include <lib/fidl/cpp/wire/client_base.h>
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#include <lib/fidl/cpp/wire/status.h>
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#include <string>
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#include "base/fuchsia/fuchsia_logging.h"
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#include "base/functional/callback.h"
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#include "base/location.h"
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#include "base/strings/string_piece.h"
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#include "third_party/abseil-cpp/absl/types/optional.h"
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namespace fidl {
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template <typename Protocol>
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class AsyncEventHandler;
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}
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namespace base {
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// An implementation of `fidl::AsyncEventhandler` that simply LOGs an ERROR
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// when `on_fidl_error` is called. The lifetime of an instance of this class
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// needs to match the lifetime of the `fidl::Client` that it is used with.
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template <typename Protocol>
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class FidlErrorEventLogger : public fidl::AsyncEventHandler<Protocol> {
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public:
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explicit FidlErrorEventLogger(
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std::string protocol_name = fidl::DiscoverableProtocolName<Protocol>)
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: protocol_name_(std::move(protocol_name)) {}
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void on_fidl_error(fidl::UnbindInfo error) override {
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LOG(ERROR) << protocol_name_ << " was disconnected with "
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<< error.status_string() << ".";
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}
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private:
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std::string protocol_name_;
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};
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// An implementation of `fidl::AsyncEventhandler` that LOGs an ERROR and
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// exits the process when `on_fidl_error` is called. The lifetime of an instance
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// of this class needs to match the lifetime of the `fidl::Client` that it is
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// used with.
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template <typename Protocol>
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class FidlErrorEventProcessExiter : public fidl::AsyncEventHandler<Protocol> {
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public:
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explicit FidlErrorEventProcessExiter(
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std::string protocol_name = fidl::DiscoverableProtocolName<Protocol>)
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: protocol_name_(std::move(protocol_name)) {}
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void on_fidl_error(fidl::UnbindInfo error) override {
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base::LogFidlErrorAndExitProcess(FROM_HERE, protocol_name_)(error.status());
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}
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private:
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std::string protocol_name_;
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};
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// An implementation of `fidl::AsyncEventHandler` that invokes the
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// caller-supplied callback when `on_fidl_error` is called. The lifetime of an
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// instance of this class needs to match the lifetime of the `fidl::Client` that
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// it is used with.
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template <typename Protocol>
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class FidlErrorEventHandler : public fidl::AsyncEventHandler<Protocol> {
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public:
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using OnFidlErrorCallback = base::RepeatingCallback<void(fidl::UnbindInfo)>;
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FidlErrorEventHandler() = delete;
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explicit FidlErrorEventHandler(OnFidlErrorCallback on_fidl_error_callback)
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: on_fidl_error_callback_(std::move(on_fidl_error_callback)) {}
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void on_fidl_error(fidl::UnbindInfo error) override {
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on_fidl_error_callback_.Run(error);
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}
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private:
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OnFidlErrorCallback on_fidl_error_callback_;
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};
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} // namespace base
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#endif // BASE_FUCHSIA_FIDL_EVENT_HANDLER_H_
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