Replace two copies of readlink code with single gnulib version.

1 files changed, 45 insertions, 0 deletions

diff --git a/lib/allocator.h b/lib/allocator.h
new file mode 100644
index 00000000000..54cc5ff66f0
--- /dev/null
+++ b/lib/allocator.h
@@ -0,0 +1,45 @@
+/* Memory allocators such as malloc+free.
+
+   Copyright (C) 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/>.  */
+
+/* Written by Paul Eggert.  */
+
+#ifndef _GL_ALLOCATOR_H
+
+#include <stddef.h>
+
+struct allocator
+{
+  /* Call MALLOC to allocate memory, like 'malloc'.  On failure MALLOC
+     should return NULL, though not necessarily set errno.  When given
+     a zero size it may return NULL even if successful.  */
+  void *(*malloc) (size_t);
+
+  /* If nonnull, call REALLOC to reallocate memory, like 'realloc'.
+     On failure REALLOC should return NULL, though not necessarily set
+     errno.  When given a zero size it may return NULL even if
+     successful.  */
+  void *(*realloc) (void *, size_t);
+
+  /* Call FREE to free memory, like 'free'.  */
+  void (*free) (void *);
+
+  /* If nonnull, call DIE if MALLOC or REALLOC fails.  DIE should
+     not return.  */
+  void (*die) (void);
+};
+
+#endif