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https://https.git.savannah.gnu.org/git/gnulib.git
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Paul Eggert
46 lines
1.7 KiB
C
46 lines
1.7 KiB
C
/* Memory allocation aligned to system page boundaries.
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Copyright (C) 2005, 2008, 2010-2022 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#ifndef _PAGEALIGN_ALLOC_H
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# define _PAGEALIGN_ALLOC_H
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# include <stddef.h>
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/* Free a memory block.
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PTR must be a non-NULL pointer returned by pagealign_alloc or
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pagealign_xalloc. */
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extern void pagealign_free (void *ptr)
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_GL_ATTRIBUTE_NONNULL ((1));
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/* Allocate a block of memory of SIZE bytes, aligned on a system page
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boundary.
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If SIZE is not a multiple of the system page size, it will be rounded up
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to the next multiple.
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Return a pointer to the start of the memory block. Upon allocation failure,
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return NULL and set errno. */
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extern void *pagealign_alloc (size_t size)
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_GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC (pagealign_free, 1)
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_GL_ATTRIBUTE_ALLOC_SIZE ((1));
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/* Like pagealign_alloc, except it exits the program if the allocation
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fails. */
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extern void *pagealign_xalloc (size_t size)
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_GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC (pagealign_free, 1)
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_GL_ATTRIBUTE_ALLOC_SIZE ((1)) _GL_ATTRIBUTE_RETURNS_NONNULL;
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#endif /* _PAGEALIGN_ALLOC_H */
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