Paul Davis
07921555aa
git-svn-id: svn://localhost/ardour2/branches/3.0@8001 d708f5d6-7413-0410-9779-e7cbd77b26cf
62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
/*
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Copyright (C) 2000-2007 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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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 General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __pbd__crossthread_h__
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#define __pbd__crossthread_h__
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#ifdef check
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#undef check
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#endif
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#include <glibmm/main.h>
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class CrossThreadChannel {
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public:
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CrossThreadChannel();
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~CrossThreadChannel();
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void wakeup();
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int selectable() const { return fds[0]; }
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int deliver (char msg);
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int receive (char& msg);
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void drain ();
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static void drain (int fd);
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/* glibmm 2.22 and earlier has a terrifying bug that will
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cause crashes whenever a Source is removed from
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a MainContext (including the destruction of the MainContext),
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because the Source is destroyed "out from under the nose of"
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the RefPtr. I (Paul) have fixed this (https://bugzilla.gnome.org/show_bug.cgi?id=561885)
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but in the meantime, we need a hack to get around the issue.
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*/
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Glib::RefPtr<Glib::IOSource> ios();
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void drop_ios ();
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bool ok() const { return fds[0] >= 0 && fds[1] >= 0; }
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private:
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Glib::RefPtr<Glib::IOSource>* _ios; // lazily constructed
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int fds[2];
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};
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#endif /* __pbd__crossthread_h__ */
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