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/*
(c) Copyright 2001-2009 The world wide DirectFB Open Source Community (directfb.org)
(c) Copyright 2000-2004 Convergence (integrated media) GmbH
All rights reserved.
Written by Denis Oliver Kropp <dok@directfb.org>,
Andreas Hundt <andi@fischlustig.de>,
Sven Neumann <neo@directfb.org>,
Ville Syrjälä <syrjala@sci.fi> and
Claudio Ciccani <klan@users.sf.net>.
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 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.
*/
#include <config.h>
#include <errno.h>
#include <unistd.h>
#include <direct/build.h>
#include <direct/system.h>
#if DIRECT_BUILD_GETTID && defined(HAVE_LINUX_UNISTD_H)
#include <linux/unistd.h>
#endif
__attribute__((no_instrument_function))
pid_t
direct_gettid( void )
{
pid_t tid = -1;
#if DIRECT_BUILD_GETTID && defined(__NR_gettid) /* present on linux >= 2.4.20 */
tid = syscall(__NR_gettid);
#endif
if (tid < 0)
tid = getpid();
return tid;
}
long
direct_pagesize( void )
{
return sysconf( _SC_PAGESIZE );
}
unsigned long
direct_page_align( unsigned long value )
{
unsigned long mask = sysconf( _SC_PAGESIZE ) - 1;
return (value + mask) & ~mask;
}
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