REORG Delete everything that's not innduct or build system or changed for innduct

[innduct.git] / include / portable / mmap.h

diff --git a/include/portable/mmap.h b/include/portable/mmap.h
deleted file mode 100644 (file)
index 3d0bbe2..0000000
--- a/include/portable/mmap.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/*  $Id: mmap.h 6012 2002-12-16 11:19:21Z alexk $
-**
-**  Portability wrapper around <sys/mman.h>.
-**
-**  This header file includes <sys/mman.h> and then sets up various
-**  additional defines and macros to permit a uniform API across platforms
-**  with varying mmap implementations.
-*/
-
-#ifndef PORTABLE_MMAP_H
-#define PORTABLE_MMAP_H 1
-
-#include "config.h"
-#include <sys/mman.h>
-
-/* Make sure that the symbolic constant for the error return from mmap is
-   defined (some platforms don't define it). */
-#ifndef MAP_FAILED
-# define MAP_FAILED     ((void *) -1)
-#endif
-
-/* Solaris 8 (at least) prototypes munmap, msync, and madvise as taking char *
-   (actually a caddr_t, which is a typedef for a char *) instead of void * as
-   is required by the standard.  This macro adds a cast that silences compiler
-   warnings on Solaris 8 without adversely affecting other platforms.  (ISO C
-   allows macro definitions of this sort; this macro is not recursive.) */
-#define munmap(p, l)            munmap((void *)(p), (l))
-
-/* On some platforms, msync only takes two arguments.  (ANSI C allows macro
-   definitions of this sort; this macro is not recursive.) */
-#if HAVE_MSYNC_3_ARG
-# define msync(p, l, f)         msync((void *)(p), (l), (f))
-#else
-# define msync(p, l, f)         msync((void *)(p), (l))
-#endif
-
-/* Turn calls to madvise into a no-op if that call isn't available. */
-#if HAVE_MADVISE
-# define madvise(p, l, o)       madvise((void *)(p), (l), (o))
-#else
-# define madvise(p, l, o)       /* empty */
-#endif
-
-/* Some platforms don't flush data written to a memory mapped region until
-   msync or munmap; on those platforms, we sometimes need to force an msync
-   so that other parts of INN will see the changed data.  Some other
-   platforms don't see writes to a file that's memory-mapped until the
-   memory mappings have been flushed.
-
-   These platforms can use mmap_flush to schedule a flush to disk and
-   mmap_invalidate to force re-reading from disk.  Note that all platforms
-   should still periodically call msync so that data is written out in case
-   of a crash. */
-#if MMAP_NEEDS_MSYNC
-# define mmap_flush(p, l)       msync((p), (l), MS_ASYNC)
-#else
-# define mmap_flush(p, l)       /* empty */
-#endif
-
-#if MMAP_MISSES_WRITES
-# define mmap_invalidate(p, l)  msync((p), (l), MS_INVALIDATE)
-#else
-# define mmap_invalidate(p, l)  /* empty */
-#endif
-
-#endif /* PORTABLE_MMAP_H */