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50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
/*
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* Copyright (c) 2024, Tim Flynn <trflynn89@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/ByteString.h>
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#include <AK/Error.h>
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#include <AK/NonnullOwnPtr.h>
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#include <AK/NonnullRefPtr.h>
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#include <AK/Platform.h>
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#include <AK/Span.h>
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#include <LibCore/Socket.h>
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#if defined(AK_OS_SERENITY)
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# error "Singleton process utilities are not to be used on SerenityOS"
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#endif
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namespace Core {
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namespace Detail {
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struct ProcessSocket {
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NonnullOwnPtr<Core::LocalSocket> socket;
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pid_t pid { 0 };
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};
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ErrorOr<ProcessSocket> launch_and_connect_to_process(StringView process_name, ReadonlySpan<ByteString> candidate_process_paths, ReadonlySpan<ByteString> command_line_arguments);
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}
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template<typename ClientType>
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struct SingletonProcess {
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NonnullRefPtr<ClientType> client;
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pid_t pid { 0 };
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};
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template<typename ClientType>
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ErrorOr<SingletonProcess<ClientType>> launch_singleton_process(StringView process_name, ReadonlySpan<ByteString> candidate_process_paths, ReadonlySpan<ByteString> command_line_arguments = {})
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{
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auto process_socket = TRY(Detail::launch_and_connect_to_process(process_name, candidate_process_paths, command_line_arguments));
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auto client = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) ClientType { move(process_socket.socket) }));
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return SingletonProcess<ClientType> { move(client), process_socket.pid };
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}
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}
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