1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/widget/gtk/compat/glib/gmem.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,56 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +
1.8 +#ifndef GMEM_WRAPPER_H
1.9 +#define GMEM_WRAPPER_H
1.10 +
1.11 +#define g_malloc_n g_malloc_n_
1.12 +#define g_malloc0_n g_malloc0_n_
1.13 +#define g_realloc_n g_realloc_n_
1.14 +#include_next <glib/gmem.h>
1.15 +#undef g_malloc_n
1.16 +#undef g_malloc0_n
1.17 +#undef g_realloc_n
1.18 +
1.19 +#include <glib/gmessages.h>
1.20 +
1.21 +#undef g_new
1.22 +#define g_new(type, num) \
1.23 + ((type *) g_malloc_n((num), sizeof(type)))
1.24 +
1.25 +#undef g_new0
1.26 +#define g_new0(type, num) \
1.27 + ((type *) g_malloc0_n((num), sizeof(type)))
1.28 +
1.29 +#undef g_renew
1.30 +#define g_renew(type, ptr, num) \
1.31 + ((type *) g_realloc_n(ptr, (num), sizeof(type)))
1.32 +
1.33 +#define _CHECK_OVERFLOW(num, type_size) \
1.34 + if (G_UNLIKELY(type_size > 0 && num > G_MAXSIZE / type_size)) { \
1.35 + g_error("%s: overflow allocating %" G_GSIZE_FORMAT "*%" G_GSIZE_FORMAT " bytes", \
1.36 + G_STRLOC, num, type_size); \
1.37 + }
1.38 +
1.39 +static inline gpointer
1.40 +g_malloc_n(gsize num, gsize type_size)
1.41 +{
1.42 + _CHECK_OVERFLOW(num, type_size)
1.43 + return g_malloc(num * type_size);
1.44 +}
1.45 +
1.46 +static inline gpointer
1.47 +g_malloc0_n(gsize num, gsize type_size)
1.48 +{
1.49 + _CHECK_OVERFLOW(num, type_size)
1.50 + return g_malloc0(num * type_size);
1.51 +}
1.52 +
1.53 +static inline gpointer
1.54 +g_realloc_n(gpointer ptr, gsize num, gsize type_size)
1.55 +{
1.56 + _CHECK_OVERFLOW(num, type_size)
1.57 + return g_realloc(ptr, num * type_size);
1.58 +}
1.59 +#endif /* GMEM_WRAPPER_H */
