glib: bump min required glib library version to 2.40

[mirror_qemu.git] / include / glib-compat.h

/*
 * GLIB Compatibility Functions
 *
 * Copyright IBM, Corp. 2013
 *
 * Authors:
 *  Anthony Liguori   <aliguori@us.ibm.com>
 *  Michael Tokarev   <mjt@tls.msk.ru>
 *  Paolo Bonzini     <pbonzini@redhat.com>
 *
 * This work is licensed under the terms of the GNU GPL, version 2 or later.
 * See the COPYING file in the top-level directory.
 *
 */

#ifndef QEMU_GLIB_COMPAT_H
#define QEMU_GLIB_COMPAT_H

#include <glib.h>

#if defined(_WIN32) && !GLIB_CHECK_VERSION(2, 50, 0)
/*
 * g_poll has a problem on Windows when using
 * timeouts < 10ms, so use wrapper.
 */
#define g_poll(fds, nfds, timeout) g_poll_fixed(fds, nfds, timeout)
gint g_poll_fixed(GPollFD *fds, guint nfds, gint timeout);
#endif


#ifndef g_assert_cmpmem
#define g_assert_cmpmem(m1, l1, m2, l2)                                        \
    do {                                                                       \
        gconstpointer __m1 = m1, __m2 = m2;                                    \
        int __l1 = l1, __l2 = l2;                                              \
        if (__l1 != __l2) {                                                    \
            g_assertion_message_cmpnum(                                        \
                G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC,                   \
                #l1 " (len(" #m1 ")) == " #l2 " (len(" #m2 "))", __l1, "==",   \
                __l2, 'i');                                                    \
        } else if (memcmp(__m1, __m2, __l1) != 0) {                            \
            g_assertion_message(G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC,   \
                                "assertion failed (" #m1 " == " #m2 ")");      \
        }                                                                      \
    } while (0)
#endif

#endif