/*
- Copyright (C) 2009 Paul Davis
+ Copyright (C) 2009 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#ifndef __pbd_event_loop_h__
#define __pbd_event_loop_h__
+#include <string>
+#include <vector>
+#include <map>
#include <boost/function.hpp>
#include <boost/bind.hpp> /* we don't need this here, but anything calling call_slot() probably will, so this is convenient */
+#include <stdint.h>
+#include <pthread.h>
#include <glibmm/threads.h>
#include "pbd/libpbd_visibility.h"
* when something like this is needed (it inherits from EventLoop).
*/
-class LIBPBD_API EventLoop
+class LIBPBD_API EventLoop
{
public:
- EventLoop() {}
+ EventLoop (std::string const&);
virtual ~EventLoop() {}
enum RequestType {
};
struct BaseRequestObject;
-
+
struct InvalidationRecord {
std::list<BaseRequestObject*> requests;
PBD::EventLoop* event_loop;
bool valid;
InvalidationRecord* invalidation;
boost::function<void()> the_slot;
-
+
BaseRequestObject() : valid (true), invalidation (0) {}
};
virtual void call_slot (InvalidationRecord*, const boost::function<void()>&) = 0;
virtual Glib::Threads::Mutex& slot_invalidation_mutex() = 0;
+ std::string event_loop_name() const { return _name; }
+
static EventLoop* get_event_loop_for_thread();
static void set_event_loop_for_thread (EventLoop* ui);
+ struct ThreadBufferMapping {
+ pthread_t emitting_thread;
+ std::string target_thread_name;
+ void* request_buffer;
+ };
+
+ static std::vector<ThreadBufferMapping> get_request_buffers_for_target_thread (const std::string&);
+
+ static void register_request_buffer_factory (const std::string& target_thread_name, void* (*factory) (uint32_t));
+ static void pre_register (const std::string& emitting_thread_name, uint32_t num_requests);
+ static void remove_request_buffer_from_map (void* ptr);
+
private:
static Glib::Threads::Private<EventLoop> thread_event_loop;
+ std::string _name;
+
+ typedef std::map<std::string,ThreadBufferMapping> ThreadRequestBufferList;
+ static ThreadRequestBufferList thread_buffer_requests;
+ static Glib::Threads::RWLock thread_buffer_requests_lock;
+
+ struct RequestBufferSupplier {
+ /* @param name : name of object/entity that will/may accept
+ requests from other threads, via a request buffer.
+ */
+ std::string name;
+
+ /* @param factory : a function that can be called (with an
+ argument specifying the @param number_of_requests) to create and
+ return a request buffer for communicating with @param name)
+ */
+ void* (*factory)(uint32_t nunber_of_requests);
+ };
+ typedef std::vector<RequestBufferSupplier> RequestBufferSuppliers;
+ static RequestBufferSuppliers request_buffer_suppliers;
};
}