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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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This commit is contained in:
Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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56
widget/gtk/compat/glib/gmem.h Normal file
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef GMEM_WRAPPER_H
#define GMEM_WRAPPER_H
#define g_malloc_n g_malloc_n_
#define g_malloc0_n g_malloc0_n_
#define g_realloc_n g_realloc_n_
#include_next <glib/gmem.h>
#undef g_malloc_n
#undef g_malloc0_n
#undef g_realloc_n
#include <glib/gmessages.h>
#undef g_new
#define g_new(type, num) \
((type *) g_malloc_n((num), sizeof(type)))
#undef g_new0
#define g_new0(type, num) \
((type *) g_malloc0_n((num), sizeof(type)))
#undef g_renew
#define g_renew(type, ptr, num) \
((type *) g_realloc_n(ptr, (num), sizeof(type)))
#define _CHECK_OVERFLOW(num, type_size) \
if (G_UNLIKELY(type_size > 0 && num > G_MAXSIZE / type_size)) { \
g_error("%s: overflow allocating %" G_GSIZE_FORMAT "*%" G_GSIZE_FORMAT " bytes", \
G_STRLOC, num, type_size); \
}
static inline gpointer
g_malloc_n(gsize num, gsize type_size)
{
_CHECK_OVERFLOW(num, type_size)
return g_malloc(num * type_size);
}
static inline gpointer
g_malloc0_n(gsize num, gsize type_size)
{
_CHECK_OVERFLOW(num, type_size)
return g_malloc0(num * type_size);
}
static inline gpointer
g_realloc_n(gpointer ptr, gsize num, gsize type_size)
{
_CHECK_OVERFLOW(num, type_size)
return g_realloc(ptr, num * type_size);
}
#endif /* GMEM_WRAPPER_H */