/usr/include/directfb/direct/os/system.h is in libdirectfb-dev 1.7.7-8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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(c) Copyright 2012-2013 DirectFB integrated media GmbH
(c) Copyright 2001-2013 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 Shimokawa <andi@directfb.org>,
Marek Pikarski <mass@directfb.org>,
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.
*/
#ifndef __DIRECT__OS__SYSTEM_H__
#define __DIRECT__OS__SYSTEM_H__
#include <direct/os/types.h>
/**********************************************************************************************************************/
/*
* Mainly special system calls...
*/
long DIRECT_API direct_pagesize( void );
unsigned long DIRECT_API direct_page_align( unsigned long value );
pid_t DIRECT_API direct_getpid( void );
pid_t DIRECT_API direct_gettid( void );
/* May return DR_TASK_NOT_FOUND */
DirectResult DIRECT_API direct_tgkill( int tgid, int tid, int sig );
/* shall not return! */
void DIRECT_API direct_trap( const char *domain, int sig );
DirectResult DIRECT_API direct_kill( pid_t pid, int sig );
DirectResult DIRECT_API direct_tkill( pid_t tid, int sig );
void DIRECT_API direct_sync( void );
DirectResult DIRECT_API direct_socketpair( int __domain, int __type, int __protocol, int __fds[2] );
DirectResult DIRECT_API direct_sigprocmask( int __how, const sigset_t *__set, sigset_t *__oset );
uid_t DIRECT_API direct_getuid( void );
uid_t DIRECT_API direct_geteuid( void );
char DIRECT_API *direct_getenv( const char *name );
DirectResult DIRECT_API direct_futex( int *uaddr, int op, int val, const struct timespec *timeout, int *uaddr2, int val3 );
#define FUTEX_WAIT 0
#define FUTEX_WAKE 1
#endif
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