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portability.h
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portability.h
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/*
* Copyright 2001-2023 the Pacemaker project contributors
*
* The version control history for this file may have further details.
*
* This source code is licensed under the GNU Lesser General Public License
* version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
*/
#ifndef PCMK__PORTABILITY__H
# define PCMK__PORTABILITY__H
/* This header provides replacements for required definitions and declarations
* that certain supported build environments don't provide
*/
/* This header *MUST* be included before any system headers, because the
* following definition can change the behavior of some of them.
*/
# undef _GNU_SOURCE /* in case it was defined on the command line */
# define _GNU_SOURCE
/* Please leave this as the first #include - Solaris needs it there */
# ifdef HAVE_CONFIG_H
# ifndef PCMK__CONFIG_H
# define PCMK__CONFIG_H
# include <config.h>
# endif
# endif
# if HAVE_DBUS
# ifndef HAVE_DBUSBASICVALUE
# include <stdint.h>
# include <dbus/dbus.h>
/**
* An 8-byte struct you could use to access int64 without having
* int64 support
*/
typedef struct
{
uint32_t first32; /**< first 32 bits in the 8 bytes (beware endian issues) */
uint32_t second32; /**< second 32 bits in the 8 bytes (beware endian issues) */
} DBus8ByteStruct;
/**
* A simple value union that lets you access bytes as if they
* were various types; useful when dealing with basic types via
* void pointers and varargs.
*
* This union also contains a pointer member (which can be used
* to retrieve a string from dbus_message_iter_get_basic(), for
* instance), so on future platforms it could conceivably be larger
* than 8 bytes.
*/
typedef union
{
unsigned char bytes[8]; /**< as 8 individual bytes */
int16_t i16; /**< as int16 */
uint16_t u16; /**< as int16 */
int32_t i32; /**< as int32 */
uint32_t u32; /**< as int32 */
uint32_t bool_val; /**< as boolean */
# ifdef DBUS_HAVE_INT64
int64_t i64; /**< as int64 */
uint64_t u64; /**< as int64 */
# endif
DBus8ByteStruct eight; /**< as 8-byte struct */
double dbl; /**< as double */
unsigned char byt; /**< as byte */
char *str; /**< as char* (string, object path or signature) */
int fd; /**< as Unix file descriptor */
} DBusBasicValue;
# endif // !defined(HAVE_DBUSBASICVALUE)
# endif // !defined(HAVE_DBUS)
// Replacement constants for Linux-specific errno values
# include <errno.h>
# ifndef ENOTUNIQ
# define PCMK__ENOTUNIQ
# define ENOTUNIQ 190
# endif
# ifndef ECOMM
# define PCMK__ECOMM
# define ECOMM 191
# endif
# ifndef ELIBACC
# define PCMK__ELIBACC
# define ELIBACC 192
# endif
# ifndef EREMOTEIO
# define PCMK__EREMOTIO
# define EREMOTEIO 193
# endif
# ifndef ENOKEY
# define PCMK__ENOKEY
# define ENOKEY 195
# endif
# ifndef ENODATA
# define PCMK__ENODATA
# define ENODATA 196
# endif
# ifndef ETIME
# define PCMK__ETIME
# define ETIME 197
# endif
# ifndef EKEYREJECTED
# define PCMK__EKEYREJECTED
# define EKEYREJECTED 200
# endif
#endif // PCMK__PORTABILITY__H

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