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