libvirt/include/libvirt/libvirt-common.h.in

/* -*- c -*-
 * libvirt-common.h
 * Summary: common macros and enums for the libvirt and libvirt-admin library
 * Description: Provides common macros and enums needed by both libvirt and
 *              libvirt-admin libraries
 *
 * Copyright (C) 2015 Red Hat, Inc.
 *
 * 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 2.1 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, see
 * <http://www.gnu.org/licenses/>.
 *
 * Author: Erik Skultety <eskultet@redhat.com>
 */

#if !defined __VIR_LIBVIRT_H_INCLUDES__ && !defined __VIR_ADMIN_H_INCLUDES__
# error "Don't include this file directly"
#endif

#ifndef __VIR_VIRCOMMON_H__
# define __VIR_VIRCOMMON_H__

# include <sys/types.h>

# ifdef __cplusplus
extern "C" {
# endif

# ifndef VIR_DEPRECATED
  /* The feature is present in gcc-3.1 and newer.  */
#  if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
#   define VIR_DEPRECATED __attribute__((__deprecated__))
#  else
#   define VIR_DEPRECATED /* nothing */
#  endif
# endif /* VIR_DEPRECATED */

# ifdef WIN32
#  ifdef LIBVIRT_STATIC
#   define VIR_EXPORT_VAR extern
#  else
#   ifdef IN_LIBVIRT
#    define VIR_EXPORT_VAR __declspec(dllexport)
#   else
#    define VIR_EXPORT_VAR __declspec(dllimport) extern
#   endif
#  endif
# else
#  define VIR_EXPORT_VAR extern
# endif

/* General note - in the header files, any linear enumeration which
 * might be expanded in the future has an optional *_LAST value that
 * gives the size of the enum at the time of compilation, if the user
 * defines VIR_ENUM_SENTINELS.  Enumerations for bit values do not
 * have a *_LAST value, but additional bits may be defined.  */

/* library versioning */

/**
 * LIBVIR_VERSION_NUMBER:
 *
 * Macro providing the version of the library as
 * version * 1,000,000 + minor * 1000 + micro
 */

# define LIBVIR_VERSION_NUMBER @LIBVIRT_VERSION_NUMBER@

/**
 * LIBVIR_CHECK_VERSION:
 * @major: major component of the version number
 * @minor: minor component of the version number
 * @micro: micro component of the version number
 *
 * Macro for developers to easily check what version of the library
 * their code is compiling against.
 * e.g.
 *   #if LIBVIR_CHECK_VERSION(1,1,3)
 *     // some code that only works in 1.1.3 and newer
 *   #endif
 */
# define LIBVIR_CHECK_VERSION(major, minor, micro) \
    ((major) * 1000000 + (minor) * 1000 + (micro) <= LIBVIR_VERSION_NUMBER)

/*
 * virFreeCallback:
 * @opaque: opaque user data provided at registration
 *
 * Type for a callback cleanup function to be paired with a callback.  This
 * function will be called as a final chance to clean up the @opaque
 * registered with the primary callback, at the time when the primary
 * callback is deregistered.
 *
 * It is forbidden to call any other libvirt APIs from an
 * implementation of this callback, since it can be invoked
 * from a context which is not re-entrant safe. Failure to
 * abide by this requirement may lead to application deadlocks
 * or crashes.
 */
typedef void (*virFreeCallback)(void *opaque);

typedef enum {
    VIR_CONNECT_CLOSE_REASON_ERROR     = 0, /* Misc I/O error */
    VIR_CONNECT_CLOSE_REASON_EOF       = 1, /* End-of-file from server */
    VIR_CONNECT_CLOSE_REASON_KEEPALIVE = 2, /* Keepalive timer triggered */
    VIR_CONNECT_CLOSE_REASON_CLIENT    = 3, /* Client requested it */

# ifdef VIR_ENUM_SENTINELS
    VIR_CONNECT_CLOSE_REASON_LAST
# endif
} virConnectCloseReason;

# ifdef __cplusplus
}
# endif

#endif /* __VIR_VIRCOMMON_H__ */