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/* Copyright (C) 2014 The giomm Development Team
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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 library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <giomm/socketsource.h>
#include <giomm/socket.h>
#include <glibmm/exceptionhandler.h>
#include <glibmm/wrap.h>
#include <gio/gio.h>
namespace
{
gboolean
giomm_generic_socket_callback(sigc::slot_base* slot, GIOCondition condition)
{
g_return_val_if_fail(slot != nullptr, FALSE);
try
{
// Recreate the specific slot from the generic slot node.
return (*static_cast<sigc::slot<bool, Glib::IOCondition>*>(slot))((Glib::IOCondition)condition);
}
catch (...)
{
Glib::exception_handlers_invoke();
}
return 0;
}
gboolean
giomm_signalsocket_callback(GSocket*, GIOCondition condition, void* user_data)
{
sigc::slot_base* const slot = Glib::Source::get_slot_from_connection_node(user_data);
return giomm_generic_socket_callback(slot, condition);
}
gboolean
giomm_socketsource_callback(GSocket*, GIOCondition condition, void* user_data)
{
sigc::slot_base* const slot = Glib::Source::get_slot_from_callback_data(user_data);
return giomm_generic_socket_callback(slot, condition);
}
GSourceFunc giomm_socketsource_cb_as_gsourcefunc()
{
// Conversion between different types of function pointers with
// reinterpret_cast can make gcc8 print a warning.
// https://github.com/libsigcplusplus/libsigcplusplus/issues/1
union {
GSourceFunc ps;
decltype(&giomm_socketsource_callback) pss;
} u;
u.pss = &giomm_socketsource_callback;
return u.ps;
}
} // anonymous namespace
namespace Gio
{
/**** Glib::SignalSocket *******************************************************/
inline SignalSocket::SignalSocket(GMainContext* context) : context_(context)
{
}
sigc::connection
SignalSocket::connect(const sigc::slot<bool, Glib::IOCondition>& slot,
const Glib::RefPtr<Socket>& socket, Glib::IOCondition condition,
const Glib::RefPtr<Cancellable>& cancellable, int priority)
{
GSource* const source =
g_socket_create_source(socket->gobj(), (GIOCondition)condition, Glib::unwrap(cancellable));
union {
GSourceFunc ps;
decltype(&giomm_signalsocket_callback) pss;
} u;
u.pss = &giomm_signalsocket_callback;
return Glib::Source::attach_signal_source(slot, priority, source, context_, u.ps);
}
SignalSocket
signal_socket(const Glib::RefPtr<Glib::MainContext>& context)
{
return SignalSocket(Glib::unwrap(context)); // 0 means default context
}
/**** Glib::SocketSource *******************************************************/
// static
Glib::RefPtr<SocketSource>
SocketSource::create(const Glib::RefPtr<Socket>& socket, Glib::IOCondition condition,
const Glib::RefPtr<Cancellable>& cancellable)
{
return Glib::RefPtr<SocketSource>(new SocketSource(socket, condition, cancellable));
}
SocketSource::SocketSource(const Glib::RefPtr<Socket>& socket, Glib::IOCondition condition,
const Glib::RefPtr<Cancellable>& cancellable)
: IOSource(
g_socket_create_source(socket->gobj(), (GIOCondition)condition, Glib::unwrap(cancellable)),
giomm_socketsource_cb_as_gsourcefunc())
{
}
SocketSource::~SocketSource() noexcept
{
}
} // namespace Gio
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