iverilog/vvm/vvm_thread.cc

76 lines
1.9 KiB
C++

/*
* Copyright (c) 1998-2000 Stephen Williams (steve@icarus.com)
*
* This source code is free software; you can redistribute it
* and/or modify it in source code form 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
*/
#if !defined(WINNT) && !defined(macintosh)
#ident "$Id: vvm_thread.cc,v 1.5 2000/04/12 01:53:07 steve Exp $"
#endif
# include "vvm.h"
# include "vvm_thread.h"
class delay_event : public vvm_event {
public:
delay_event(vvm_thread*thr) : thr_(thr) { }
void event_function()
{
while (thr_->go())
/* empty */;
}
private:
vvm_thread*thr_;
};
vvm_thread::vvm_thread()
{
sync_next_ = 0;
sync_back_ = 0;
thread_yield();
}
vvm_thread::~vvm_thread()
{
}
void vvm_thread::thread_yield(unsigned long delay)
{
delay_event*ev = new delay_event(this);
ev -> schedule(delay);
}
/*
* $Log: vvm_thread.cc,v $
* Revision 1.5 2000/04/12 01:53:07 steve
* Multiple thread can block on an event.
*
* Revision 1.4 2000/02/23 02:56:57 steve
* Macintosh compilers do not support ident.
*
* Revision 1.3 2000/01/06 05:56:23 steve
* Cleanup and some asserts.
*
* Revision 1.2 1999/12/12 19:47:54 steve
* Remove the useless vvm_simulation class.
*
* Revision 1.1 1998/11/09 23:44:11 steve
* Add vvm library.
*
*/