/** @file
 * IPRT - Core Dumper.
 */

/*
 * Copyright (C) 2010-2020 Oracle Corporation
 *
 * This file is part of VirtualBox Open Source Edition (OSE), as
 * available from http://www.virtualbox.org. This file is free software;
 * you can redistribute it and/or modify it under the terms of the GNU
 * General Public License (GPL) as published by the Free Software
 * Foundation, in version 2 as it comes in the "COPYING" file of the
 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
 *
 * The contents of this file may alternatively be used under the terms
 * of the Common Development and Distribution License Version 1.0
 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
 * VirtualBox OSE distribution, in which case the provisions of the
 * CDDL are applicable instead of those of the GPL.
 *
 * You may elect to license modified versions of this file under the
 * terms and conditions of either the GPL or the CDDL or both.
 */

#ifndef IPRT_INCLUDED_coredumper_h
#define IPRT_INCLUDED_coredumper_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif

#include <iprt/cdefs.h>
#include <iprt/types.h>

RT_C_DECLS_BEGIN

/** @defgroup grp_rt_coredumper     RTCoreDumper - Core Dumper.
 * @ingroup grp_rt
 * @{
 */

/** @name RTCoreDumperSetup flags
 * @{ */
/** Override system core dumper. Registers handlers for
 *  SIGSEGV/SIGTRAP/SIGBUS.  */
#define RTCOREDUMPER_FLAGS_REPLACE_SYSTEM_DUMP     RT_BIT(0)
/** Allow taking live process dumps (without killing process). Registers handler
 *  for SIGUSR2. */
#define RTCOREDUMPER_FLAGS_LIVE_CORE               RT_BIT(1)
/** @}  */

/**
 * Take a core dump of the current process without terminating it.
 *
 * @returns IPRT status code.
 * @param   pszOutputFile       Name of the core file.  If NULL use the
 *                              default naming scheme.
 * @param   fLiveCore           When true, the process is not killed after
 *                              taking a core. Otherwise it will be killed. This
 *                              works in conjuction with the flags set during
 *                              RTCoreDumperSetup().
 */
RTDECL(int) RTCoreDumperTakeDump(const char *pszOutputFile, bool fLiveCore);

/**
 * Sets up and enables the core dumper.
 *
 * Installs signal / unhandled exception handlers for catching fatal errors
 * that should result in a core dump.  If you wish to install your own handlers
 * you should do that after calling this function and make sure you pass on
 * events you don't handle.
 *
 * This can be called multiple times to change the settings without needing to
 * call RTCoreDumperDisable in between.
 *
 * @param   pszOutputDir        The directory to store the cores in.  If NULL
 *                              the current directory will be used.
 * @param   fFlags              Setup flags, 0 in NOT a valid flag, it must be
 *                              one or more of RTCOREDUMPER_FLAGS_*.
 */
RTDECL(int) RTCoreDumperSetup(const char *pszOutputDir, uint32_t fFlags);

/**
 * Disables the core dumper, i.e. undoes what RTCoreDumperSetup did.
 *
 * @returns IPRT status code.
 */
RTDECL(int) RTCoreDumperDisable(void);

/** @} */

RT_C_DECLS_END

#endif /* !IPRT_INCLUDED_coredumper_h */