108 lines
3.5 KiB
C++
108 lines
3.5 KiB
C++
/*
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* Copyright (C) 1998-2015 Paul Davis <paul@linuxaudiosystems.com>
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* Copyright (C) 2013-2014 John Emmas <john@creativepost.co.uk>
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* Copyright (C) 2014-2017 Robin Gareus <robin@gareus.org>
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*
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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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*
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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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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __pbd_abstract_ui_h__
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#define __pbd_abstract_ui_h__
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#include <map>
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#include <string>
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#include <pthread.h>
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#include <glibmm/threads.h>
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#include "pbd/libpbd_visibility.h"
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#include "pbd/receiver.h"
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#include "pbd/ringbufferNPT.h"
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#include "pbd/signals.h"
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#include "pbd/base_ui.h"
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/* We have a special case in libpbd of a template class that gets instantiated
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* as the base class of several classes in other libraries. It is not possible
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* to use LIBFOO_API to mark this visible, because the FOO in each case is
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* different. So we define this generic visible/export/hidden/import pair
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* of macros to try to deal with this special case. These should NEVER be
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* used anywhere except AbstractUI<T> (or similar cases if they arise.
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*
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* Note the assumption here that other libs are being built as DLLs if this one is.
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*/
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#ifdef ABSTRACT_UI_EXPORTS
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#define ABSTRACT_UI_API LIBPBD_DLL_EXPORT
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#else
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#define ABSTRACT_UI_API LIBPBD_DLL_IMPORT
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#endif
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class Touchable;
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template<typename RequestObject>
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class ABSTRACT_UI_API AbstractUI : public BaseUI
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{
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public:
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AbstractUI (const std::string& name);
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virtual ~AbstractUI();
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void register_thread (pthread_t, std::string, uint32_t num_requests);
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bool call_slot (EventLoop::InvalidationRecord*, const boost::function<void()>&);
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Glib::Threads::Mutex& slot_invalidation_mutex() { return request_buffer_map_lock; }
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Glib::Threads::Mutex request_buffer_map_lock;
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static void* request_buffer_factory (uint32_t num_requests);
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protected:
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struct RequestBuffer : public PBD::RingBufferNPT<RequestObject> {
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bool dead;
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RequestBuffer (uint32_t size)
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: PBD::RingBufferNPT<RequestObject> (size)
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, dead (false) {}
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};
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typedef typename RequestBuffer::rw_vector RequestBufferVector;
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#if defined(COMPILER_MINGW) && defined(PTW32_VERSION)
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struct pthread_cmp
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{
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bool operator() (const ptw32_handle_t& thread1, const ptw32_handle_t& thread2)
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{
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return thread1.p < thread2.p;
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}
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};
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typedef typename std::map<pthread_t,RequestBuffer*, pthread_cmp>::iterator RequestBufferMapIterator;
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typedef std::map<pthread_t,RequestBuffer*, pthread_cmp> RequestBufferMap;
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#else
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typedef typename std::map<pthread_t,RequestBuffer*>::iterator RequestBufferMapIterator;
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typedef std::map<pthread_t,RequestBuffer*> RequestBufferMap;
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#endif
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RequestBufferMap request_buffers;
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static Glib::Threads::Private<RequestBuffer> per_thread_request_buffer;
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std::list<RequestObject*> request_list;
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RequestObject* get_request (RequestType);
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void handle_ui_requests ();
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void send_request (RequestObject*);
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virtual void do_request (RequestObject *) = 0;
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PBD::ScopedConnection new_thread_connection;
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};
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#endif /* __pbd_abstract_ui_h__ */
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