86 lines
1.7 KiB
C++
86 lines
1.7 KiB
C++
/*
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* Copyright © 2013 Canonical Ltd.
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* Authored by: Thomas Voß <thomas.voss@canonical.com>
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*/
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#include <core/posix/process.h>
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#include <core/posix/signal.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <iostream>
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namespace core
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{
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namespace posix
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{
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struct Process::Private
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{
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pid_t pid;
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};
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Process Process::invalid()
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{
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static const pid_t invalid_pid = 0;
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Process p(invalid_pid);
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p.d->pid = -1;
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return p;
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}
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Process::Process(pid_t pid)
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: Signalable(pid),
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d(new Private{pid})
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{
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if (pid < 0)
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throw std::runtime_error("Cannot construct instance for invalid pid.");
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}
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Process::~Process() noexcept
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{
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}
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pid_t Process::pid() const
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{
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return d->pid;
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}
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ProcessGroup Process::process_group_or_throw() const
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{
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pid_t pgid = ::getpgid(pid());
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if (pgid == -1)
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throw std::system_error(errno, std::system_category());
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return ProcessGroup(pgid);
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}
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ProcessGroup Process::process_group(std::error_code& se) const noexcept(true)
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{
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pid_t pgid = ::getpgid(pid());
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if (pgid == -1)
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{
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se = std::error_code(errno, std::system_category());
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}
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return ProcessGroup(pgid);
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}
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}
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}
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