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https://github.com/LadybirdBrowser/ladybird.git
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3fc0350caf
This makes the wrapper more like the rest in LibCore, and also removes the annoying limitation of not supporting arguments. There are three overloads one for String, char const *, and StringView argument lists. As long as there are <= 10 arguments the argv list will be allocated inline, otherwise on the heap.
84 lines
1.9 KiB
C++
84 lines
1.9 KiB
C++
/*
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* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2022, MacDue <macdue@dueutil.tech>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/String.h>
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#include <AK/Vector.h>
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#include <LibCore/Process.h>
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#include <LibCore/System.h>
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#include <errno.h>
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#include <spawn.h>
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#ifdef __serenity__
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# include <serenity.h>
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#endif
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extern char** environ;
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namespace Core {
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struct ArgvList {
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String m_path;
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Vector<char const*, 10> m_argv;
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ArgvList(String path, size_t size)
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: m_path { path }
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{
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m_argv.ensure_capacity(size + 2);
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m_argv.append(m_path.characters());
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}
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void append(char const* arg)
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{
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m_argv.append(arg);
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}
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Span<char const*> get()
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{
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if (m_argv.is_empty() || m_argv.last() != nullptr)
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m_argv.append(nullptr);
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return m_argv;
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}
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ErrorOr<pid_t> spawn()
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{
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auto pid = TRY(System::posix_spawn(m_path.characters(), nullptr, nullptr, const_cast<char**>(get().data()), environ));
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#ifdef __serenity__
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TRY(System::disown(pid));
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#endif
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return pid;
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}
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};
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ErrorOr<pid_t> Process::spawn(StringView path, Span<String const> arguments)
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{
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ArgvList argv { path, arguments.size() };
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for (auto const& arg : arguments)
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argv.append(arg.characters());
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return argv.spawn();
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}
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ErrorOr<pid_t> Process::spawn(StringView path, Span<StringView const> arguments)
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{
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Vector<String> backing_strings;
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backing_strings.ensure_capacity(arguments.size());
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ArgvList argv { path, arguments.size() };
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for (auto const& arg : arguments) {
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backing_strings.append(arg);
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argv.append(backing_strings.last().characters());
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}
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return argv.spawn();
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}
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ErrorOr<pid_t> Process::spawn(StringView path, Span<char const* const> arguments)
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{
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ArgvList argv { path, arguments.size() };
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for (auto arg : arguments)
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argv.append(arg);
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return argv.spawn();
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}
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}
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