/usr/include/gpsim/ttoken.h is in gpsim-dev 0.26.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 | /*
Copyright (C) 2004 T. Scott Dattalo
This file is part of the libgpsim library of gpsim
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see
<http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
#if !defined(__TTOKEN_H__)
#define __TTOKEN_H__
namespace gpsim {
/// Token - a class used to synchronize two threads.
/// Token will spawn a new thread and keep it synchronized
/// with the thread that called it. In gpsim, the simulation
/// engine is a single thread application. However, it's
/// sometimes quite difficult to implement modules within the
/// context of this thread. So modules that are instantiated
/// from within the context of the simulator can use the Token
/// class to spawn a new thread.
///
/// Note - the underlying implementation depends on pthreads.
/// However, that implementation is completely hidden with an
/// opaque pointer to the PThreadWrapper object. This way,
/// if it turns out that pthreads are not installed or there's
/// another implementation preferred for the synchronization
/// then it's easy to change with impacting the whole system.
struct ThreadWrapper;
class Token
{
public:
Token();
/// Initialize - a wrapper for pthread create.
void Initialize(void *(*child) (void *), void *data);
///
void waitForChild();
void passToChild();
void passToParent();
void grab();
private:
ThreadWrapper *thread;
};
} // end of namespace gpsim
#endif // !defined(__TTOKEN_H__)
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