summaryrefslogtreecommitdiff
path: root/gnulib/lib/pagealign_alloc.h
diff options
context:
space:
mode:
Diffstat (limited to 'gnulib/lib/pagealign_alloc.h')
m---------gnulib0
-rw-r--r--gnulib/lib/pagealign_alloc.h54
2 files changed, 54 insertions, 0 deletions
diff --git a/gnulib b/gnulib
deleted file mode 160000
-Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1
diff --git a/gnulib/lib/pagealign_alloc.h b/gnulib/lib/pagealign_alloc.h
new file mode 100644
index 0000000..8d4b285
--- /dev/null
+++ b/gnulib/lib/pagealign_alloc.h
@@ -0,0 +1,54 @@
+/* Memory allocation aligned to system page boundaries.
+
+ Copyright (C) 2005, 2008, 2010-2011 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef _PAGEALIGN_ALLOC_H
+# define _PAGEALIGN_ALLOC_H
+
+# include <stddef.h>
+
+/* Allocate a block of memory of SIZE bytes, aligned on a system page
+ boundary.
+ If SIZE is not a multiple of the system page size, it will be rounded up
+ to the next multiple.
+ Return a pointer to the start of the memory block. Upon allocation failure,
+ return NULL and set errno. */
+extern void *pagealign_alloc (size_t size)
+# if __GNUC__ >= 3
+ __attribute__ ((__malloc__))
+# if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
+ __attribute__ ((__alloc_size__ (1)))
+# endif
+# endif
+ ;
+
+/* Like pagealign_alloc, except it exits the program if the allocation
+ fails. */
+extern void *pagealign_xalloc (size_t size)
+# if __GNUC__ >= 3
+ __attribute__ ((__malloc__))
+# if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
+ __attribute__ ((__alloc_size__ (1)))
+# endif
+# endif
+ ;
+
+/* Free a memory block.
+ PTR must be a non-NULL pointer returned by pagealign_alloc or
+ pagealign_xalloc. */
+extern void pagealign_free (void *ptr);
+
+#endif /* _PAGEALIGN_ALLOC_H */