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LibCore: Add Core::Process::spawn()

This is a simple wrapper around posix_spawn() that will help us simplify
a bunch of very verbose posix_spawn() invocations.

This first version only supports the simplest case: executing an
executable without passing arguments or doing anything fancy. More
features can be added to cover more cases. :^)
This commit is contained in:
Andreas Kling 2021-08-06 01:04:11 +02:00
parent ad3ae7e0e8
commit 6e65b36973
Notes: sideshowbarker 2024-07-18 07:25:34 +09:00
3 changed files with 55 additions and 0 deletions

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@ -21,6 +21,7 @@ set(SOURCES
NetworkResponse.cpp
Notifier.cpp
Object.cpp
Process.cpp
ProcessStatisticsReader.cpp
Property.cpp
Socket.cpp

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@ -0,0 +1,36 @@
/*
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/String.h>
#include <LibCore/Process.h>
#include <errno.h>
#include <spawn.h>
#include <unistd.h>
#ifdef __serenity__
# include <serenity.h>
#endif
namespace Core {
pid_t Process::spawn(StringView path)
{
String path_string = path;
pid_t pid;
char const* argv[] = { path_string.characters(), nullptr };
if ((errno = posix_spawn(&pid, path_string.characters(), nullptr, nullptr, const_cast<char**>(argv), environ))) {
perror("Process::spawn posix_spawn");
} else {
#ifdef __serenity__
if (disown(pid) < 0)
perror("Process::spawn disown");
#endif
}
return pid;
}
}

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@ -0,0 +1,18 @@
/*
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Forward.h>
namespace Core {
class Process {
public:
static pid_t spawn(StringView path);
};
}