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/* Copyright (C) 2003, 2004 MySQL AB
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
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 */
#ifndef _MDISPATCHER_H_
#define _MDISPATCHER_H_
#include <glibmm.h>
#include <map>
#include <pthread.h>
class MDispatcher : public Glib::ObjectBase {
public:
typedef sigc::signal1<void,bool> WorkStartStopSignal;
private:
struct Fetcher {
MDispatcher *disp;
pthread_t tid;
bool cancelled;
void *(*function)(void*);
void *user_data;
Glib::Dispatcher *sig_dispatcher;
};
struct AsyncFetcher {
MDispatcher *disp;
pthread_t tid;
bool cancelled;
bool data_ready;
long delay;
void *data;
bool fetch_locked;
void *(*function)(void*);
void *user_data;
void (*free_user_data)(void*);
bool (*callback)(void *data,void *user_data);
void *cb_user_data;
Glib::Dispatcher *sig_dispatcher;
};
WorkStartStopSignal _work_signal;
pthread_mutex_t _fetch_mutex;
bool _done;
bool _cancelled;
bool _checking_instances;
pthread_mutex_t _async_mutex;
std::map<const char*,AsyncFetcher*> _async_fetchers;
Fetcher *_fetcher;
Glib::Dispatcher _sync_thread_signal;
Glib::Dispatcher _async_thread_signal;
static void *thread_func(Fetcher *self);
static void *async_thread_func(AsyncFetcher *self);
void sync_thread_finished();
void async_thread_finished();
public:
MDispatcher();
void *dispatch(void *(*func)(void*), void *udata);
void cancel();
bool was_cancelled() { return _cancelled; };
void dispatch_async(const char *name,
void *(*func)(void*), void *udata, void(*free_data)(void*),
bool (*callback)(void*,void*), void *cbdata,
long repeat_delay);
void cancel_async(const char *name);
WorkStartStopSignal signal_work_start_stop() { return _work_signal; };
};
#endif /* _MDISPATCHER_H_ */
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