/usr/include/dpm/Cthread_flags.h is in libdpm-dev 1.8.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* $Id: Cthread_flags.h,v 1.1.1.1 2002/10/02 13:14:49 baud Exp $
*/
/*
* Copyright (C) 1999-2002 by CERN/IT/DS/HSM
* All rights reserved
*/
#ifndef __Cthread_flags_h
#define __Cthread_flags_h
/* -------------------------------------------- */
/* ... Flag to use threads */
/* -------------------------------------------- */
#ifdef _CTHREAD
#undef _CTHREAD
#endif
/* -------------------------------------------- */
/* ... Flag not to use threads */
/* -------------------------------------------- */
#ifdef _NOCTHREAD
#undef _NOCTHREAD
#endif
/* -------------------------------------------- */
/* ... Flag for thread prototypes */
/* -------------------------------------------- */
#ifdef _CTHREAD_PROTO
#undef _CTHREAD_PROTO
#endif
#ifdef _CTHREAD_PROTO_POSIX
#undef _CTHREAD_PROTO_POSIX
#endif
#define _CTHREAD_PROTO_POSIX 1
#ifdef _CTHREAD_PROTO_DCE
#undef _CTHREAD_PROTO_DCE
#endif
#define _CTHREAD_PROTO_DCE 2
#ifdef _CTHREAD_PROTO_LINUX
#undef _CTHREAD_PROTO_LINUX
#endif
#define _CTHREAD_PROTO_LINUX 3
#ifdef _CTHREAD_PROTO_WIN32
#undef _CTHREAD_PROTO_WIN32
#endif
#define _CTHREAD_PROTO_WIN32 4
/* ----------------------------------------------- */
/* Analyse of compilation flags */
/* ----------------------------------------------- */
/* ----------------------------------------------- */
/* Windows : Force to always use threads on _WIN32 */
/* ----------------------------------------------- */
#ifdef _WIN32
#ifdef NOCTHREAD
#undef NOCTHREAD
#endif
#ifndef CTHREAD
#define CTHREAD
#endif
/* Makes sure that Windows/NT version is correct */
#ifndef _CTHREAD_WIN32MTX
#ifdef _WIN32_WINNT
#undef _WIN32_WINNT
#endif
#define _WIN32_WINNT 0x0400
#endif /* _CTHREAD_WIN32MTX */
#endif /* ifdef _WIN32 */
/* -------------------------------------------- */
/* Unix-like: */
/* NOCTHREAD : Clearly the user do NOT */
/* want threads */
/* -------------------------------------------- */
#ifdef NOCTHREAD
#define _NOCTHREAD
#else
/* -------------------------------------------- */
/* CTHREAD undef : default is NOT to use */
/* threads unless _REENTRANT or _THREAD_SAFE */
/* is defined (UNIX) */
/* -------------------------------------------- */
#ifndef CTHREAD
#if (defined(_REENTRANT) || defined(_THREAD_SAFE))
#define CTHREAD
#define _CTHREAD
#else
#define NOCTHREAD
#define _NOCTHREAD
#endif
#else
#define _CTHREAD
#endif /* ifndef CTHREAD */
#endif /* ifdef NOCTHREAD */
/* -------------------------------------------- */
/* Let's determine the thread prototypes to */
/* to use */
/* For Windows we current don't have any choice */
/* -------------------------------------------- */
#ifdef _CTHREAD
#if _WIN32
#define _CTHREAD_PROTO _CTHREAD_PROTO_WIN32
#else
#ifdef CTHREAD_POSIX
#define _CTHREAD_PROTO _CTHREAD_PROTO_POSIX
#else
#ifdef CTHREAD_DCE
#define _CTHREAD_PROTO _CTHREAD_PROTO_DCE
#else
#ifdef CTHREAD_LINUX
#define _CTHREAD_PROTO _CTHREAD_PROTO_LINUX
#else
#define _CTHREAD_PROTO _CTHREAD_PROTO_POSIX
#endif /* ifdef CTHREAD_LINUX */
#endif /* ifdef CTHREAD_DCE */
#endif /* ifdef CTHREAD_POSIX */
#endif /* ifdef _WIN32 */
#endif /* ifdef CTHREAD */
/* -------------------------------------------- */
/* Flags to extern user who whishes to know the */
/* environment. */
/* -------------------------------------------- */
/* This is really in a threaded environment */
#ifdef CTHREAD_TRUE_THREAD
#undef CTHREAD_TRUE_THREAD
#endif
#define CTHREAD_TRUE_THREAD 1
/* This is NOT a threaded environment */
#ifdef CTHREAD_MULTI_PROCESS
#undef CTHREAD_MULTI_PROCESS
#endif
#define CTHREAD_MULTI_PROCESS 2
/* ============================================ */
/* Includes */
/* ============================================ */
#ifdef _CTHREAD
#ifdef _WIN32
#include <windows.h>
#include <winbase.h>
#include <process.h>
#else
#include <pthread.h>
#endif /* ifdfef _WIN32 */
#else /* ifdef _CTHREAD */
#include <unistd.h> /* getpid fork.. */
#include <sys/types.h> /* waitpid */
#include <sys/wait.h> /* waitpid */
#include <signal.h> /* signal */
#endif /* ifdef _CTHREAD */
#include <stdlib.h> /* malloc, etc... */
#ifndef _WIN32
#include <unistd.h> /* fork usleep... */
#include <sys/time.h> /* gettimeofday */
#endif /* ifndef _WIN32 */
#include <errno.h> /* errno ... */
#include <string.h> /* strerror ... */
#endif /* __Cthread_flags_h */
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