X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/9e0e57c7d64492351f4a7ce1c01054d4d43a1bcc..a7517f0fdec7aa1172f9bb41a9d61cf1b02b286d:/lib/allocator.h

diff --git a/lib/allocator.h b/lib/allocator.h
index 4ac863b224..0904b32154 100644
--- a/lib/allocator.h
+++ b/lib/allocator.h
@@ -1,6 +1,6 @@
 /* Memory allocators such as malloc+free.
 
-   Copyright (C) 2011 Free Software Foundation, Inc.
+   Copyright (C) 2011-2014 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
@@ -18,6 +18,7 @@
 /* Written by Paul Eggert.  */
 
 #ifndef _GL_ALLOCATOR_H
+#define _GL_ALLOCATOR_H
 
 #include <stddef.h>
 
@@ -30,24 +31,28 @@ struct allocator
      attributes do not work with pointers to functions.  See
      <http://lists.gnu.org/archive/html/bug-gnulib/2011-04/msg00007.html>.  */
 
-  /* Call MALLOC to allocate memory, like 'malloc'.  On failure MALLOC
+  /* Call ALLOCATE to allocate memory, like 'malloc'.  On failure ALLOCATE
      should return NULL, though not necessarily set errno.  When given
      a zero size it may return NULL even if successful.  */
-  void *(*malloc) (size_t);
+  void *(*allocate) (size_t);
 
-  /* If nonnull, call REALLOC to reallocate memory, like 'realloc'.
-     On failure REALLOC should return NULL, though not necessarily set
+  /* If nonnull, call REALLOCATE to reallocate memory, like 'realloc'.
+     On failure REALLOCATE 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);
+  void *(*reallocate) (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.  DIE can be used by code that detects memory overflow
-     while calculating sizes to be passed to MALLOC or REALLOC.  */
-  void (*die) (void);
+  /* If nonnull, call DIE (SIZE) if MALLOC (SIZE) or REALLOC (...,
+     SIZE) fails.  DIE should not return.  SIZE should equal SIZE_MAX
+     if size_t overflow was detected while calculating sizes to be
+     passed to MALLOC or REALLOC.  */
+  void (*die) (size_t);
 };
 
-#endif
+/* An allocator using the stdlib functions and a null DIE function.  */
+extern struct allocator const stdlib_allocator;
+
+#endif /* _GL_ALLOCATOR_H */