pmt: initial 3.0.2 update

include/libgnulib/pagealign_alloc.h

@@ -0,0 +1,62 @@
+/* Memory allocation aligned to system page boundaries.
+
+   Copyright (C) 2005, 2008, 2010-2024 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 <https://www.gnu.org/licenses/>.  */
+
+#ifndef _PAGEALIGN_ALLOC_H
+#define _PAGEALIGN_ALLOC_H
+
+/* This file uses _GL_ATTRIBUTE_ALLOC_SIZE, _GL_ATTRIBUTE_DEALLOC,
+   _GL_ATTRIBUTE_MALLOC, _GL_ATTRIBUTE_NONNULL,
+   _GL_ATTRIBUTE_RETURNS_NONNULL.  */
+#if !_GL_CONFIG_H_INCLUDED
+# error "Please include config.h first."
+#endif
+
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#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)
+  _GL_ATTRIBUTE_NONNULL ((1));
+
+/* 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)
+  _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC (pagealign_free, 1)
+  _GL_ATTRIBUTE_ALLOC_SIZE ((1));
+
+/* Like pagealign_alloc, except it exits the program if the allocation
+   fails.  */
+extern void *pagealign_xalloc (size_t size)
+  _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC (pagealign_free, 1)
+  _GL_ATTRIBUTE_ALLOC_SIZE ((1)) _GL_ATTRIBUTE_RETURNS_NONNULL;
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _PAGEALIGN_ALLOC_H */