/usr/include/trilinos/TPI.hpp is in libtrilinos-dev 10.4.0.dfsg-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/* TPI: Thread Pool Interface */
/* Copyright (2008) Sandia Corporation */
/* */
/* Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive */
/* license for use of this work by or on behalf of the U.S. Government. */
/* */
/* 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, write to the Free Software */
/* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 */
/* USA */
/*------------------------------------------------------------------------*/
/**
* @author H. Carter Edwards <hcedwar@sandia.gov>
*/
#ifndef util_ThreadPool_hpp
#define util_ThreadPool_hpp
#include <TPI.h>
namespace TPI {
typedef TPI_Work Work ;
//----------------------------------------------------------------------
/** Run worker.*method(work) on all threads.
*/
template<class Worker>
int Run( Worker & worker , void (Worker::*method)(Work &) ,
int work_count , int lock_count = 0 );
//----------------------------------------------------------------------
inline int Lock( int n ) { return TPI_Lock( n ); }
inline int Unlock( int n ) { return TPI_Unlock( n ); }
/** Lock guard to insure that a lock is released
* when control exists a block.
* {
* TPI::LockGuard local_lock( i );
* }
*/
class LockGuard {
private:
LockGuard();
LockGuard( const LockGuard & );
LockGuard & operator = ( const LockGuard & );
const int m_value ;
const int m_result ;
public:
operator int() const { return m_result ; }
explicit LockGuard( unsigned i_lock )
: m_value( i_lock ), m_result( TPI_Lock(i_lock) ) {}
~LockGuard() { TPI_Unlock( m_value ); }
};
//----------------------------------------------------------------------
inline
int Init( int n ) { return TPI_Init( n ); }
inline
int Finalize() { return TPI_Finalize(); }
inline
double Walltime() { return TPI_Walltime(); }
//----------------------------------------------------------------------
//----------------------------------------------------------------------
namespace {
template<class Worker>
class WorkerMethodHelper {
private:
WorkerMethodHelper();
WorkerMethodHelper( const WorkerMethodHelper & );
WorkerMethodHelper & operator = ( const WorkerMethodHelper & );
public:
typedef void (Worker::*Method)( Work & );
Worker & worker ;
Method method ;
WorkerMethodHelper( Worker & w , Method m ) : worker(w), method(m) {}
static void run( TPI_Work * work )
{
try {
const WorkerMethodHelper & wm =
* reinterpret_cast<const WorkerMethodHelper*>(work->info);
(wm.worker.*wm.method)(*work);
} catch(...){}
}
};
}
//----------------------------------------------------------------------
//----------------------------------------------------------------------
template<class Worker>
inline
int Run( Worker & worker, void (Worker::*method)(Work &) ,
int work_count , int lock_count )
{
typedef WorkerMethodHelper<Worker> WM ;
WM tmp( worker , method );
return TPI_Run( reinterpret_cast<TPI_work_subprogram>(& WM::run),&tmp,work_count,lock_count);
}
//----------------------------------------------------------------------
//----------------------------------------------------------------------
}
#endif
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