64ba7d5be8
Convert a number of destructors to default synthesized functions. Try to inline a few instances into the header. It should be possible to inline all of them, however, gcc seems to emit a number of warnings. Furthermore, some of the destructors are pure-virtualed, but provide an implementation. Placing the definition into the header causes ODR violations.
140 lines
3.5 KiB
C++
140 lines
3.5 KiB
C++
/* vim: set sw=4 sts=4 et foldmethod=syntax : */
|
|
|
|
/*
|
|
* Copyright (c) 2009, 2010, 2011, 2012 Ciaran McCreesh
|
|
*
|
|
* This file is part of the Paludis package manager. Paludis is free software;
|
|
* you can redistribute it and/or modify it under the terms of the GNU General
|
|
* Public License version 2, as published by the Free Software Foundation.
|
|
*
|
|
* Paludis 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 General Public License for more
|
|
* details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with
|
|
* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
|
|
* Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <paludis/util/string_list_stream.hh>
|
|
#include <paludis/util/pimp-impl.hh>
|
|
#include <list>
|
|
#include <string>
|
|
#include <mutex>
|
|
#include <condition_variable>
|
|
|
|
using namespace paludis;
|
|
|
|
namespace paludis
|
|
{
|
|
template <>
|
|
struct Imp<StringListStreamBuf>
|
|
{
|
|
std::mutex mutex;
|
|
std::condition_variable condition;
|
|
|
|
std::string active_string;
|
|
std::list<std::string> future_strings;
|
|
|
|
bool nothing_more_to_write;
|
|
|
|
Imp() :
|
|
nothing_more_to_write(false)
|
|
{
|
|
}
|
|
};
|
|
}
|
|
|
|
StringListStreamBuf::StringListStreamBuf() :
|
|
_imp()
|
|
{
|
|
setg(nullptr, nullptr, nullptr);
|
|
}
|
|
|
|
StringListStreamBuf::~StringListStreamBuf() = default;
|
|
|
|
StringListStreamBuf::int_type
|
|
StringListStreamBuf::overflow(int_type c)
|
|
{
|
|
std::unique_lock<std::mutex> lock(_imp->mutex);
|
|
_imp->condition.notify_all();
|
|
|
|
if (c != traits_type::eof())
|
|
{
|
|
if ((_imp->future_strings.empty()) || (_imp->future_strings.back().length() > 1024))
|
|
_imp->future_strings.push_back(std::string(1, c));
|
|
else
|
|
_imp->future_strings.back().append(std::string(1, c));
|
|
}
|
|
|
|
return c;
|
|
}
|
|
|
|
std::streamsize
|
|
StringListStreamBuf::xsputn(const char * s, std::streamsize num)
|
|
{
|
|
std::unique_lock<std::mutex> lock(_imp->mutex);
|
|
_imp->condition.notify_all();
|
|
|
|
if ((_imp->future_strings.empty()) || (_imp->future_strings.back().length() + num > 1024))
|
|
_imp->future_strings.push_back(std::string(s, num));
|
|
else
|
|
_imp->future_strings.back().append(std::string(s, num));
|
|
return num;
|
|
}
|
|
|
|
void
|
|
StringListStreamBuf::nothing_more_to_write()
|
|
{
|
|
std::unique_lock<std::mutex> lock(_imp->mutex);
|
|
_imp->nothing_more_to_write = true;
|
|
_imp->condition.notify_all();
|
|
}
|
|
|
|
StringListStreamBuf::int_type
|
|
StringListStreamBuf::underflow()
|
|
{
|
|
std::unique_lock<std::mutex> lock(_imp->mutex);
|
|
|
|
if (gptr() < egptr())
|
|
return traits_type::to_int_type(*gptr());
|
|
|
|
while (_imp->future_strings.empty())
|
|
{
|
|
if (_imp->nothing_more_to_write)
|
|
return traits_type::eof();
|
|
|
|
_imp->condition.wait(lock);
|
|
}
|
|
|
|
_imp->active_string = *_imp->future_strings.begin();
|
|
_imp->future_strings.erase(_imp->future_strings.begin());
|
|
setg(&_imp->active_string[0], &_imp->active_string[0],
|
|
&_imp->active_string[0] + _imp->active_string.length());
|
|
|
|
return traits_type::to_int_type(*gptr());
|
|
}
|
|
|
|
StringListStreamBase::StringListStreamBase()
|
|
{
|
|
}
|
|
|
|
StringListStream::StringListStream() :
|
|
std::istream(&buf),
|
|
std::ostream(&buf)
|
|
{
|
|
}
|
|
|
|
void
|
|
StringListStream::nothing_more_to_write()
|
|
{
|
|
flush();
|
|
buf.nothing_more_to_write();
|
|
}
|
|
|
|
namespace paludis
|
|
{
|
|
template class Pimp<StringListStreamBuf>;
|
|
}
|