BSD 4_3_Net_2 release

[unix-history] / usr / src / sys / sys / mman.h

diff --git a/usr/src/sys/sys/mman.h b/usr/src/sys/sys/mman.h
index 4c1c14d..b3e19d7 100644 (file)
--- a/usr/src/sys/sys/mman.h
+++ b/usr/src/sys/sys/mman.h
@@ -1,23 +1,87 @@
-/*
- * Copyright (c) 1982, 1986 Regents of the University of California.
- * All rights reserved.  The Berkeley software License Agreement
- * specifies the terms and conditions for redistribution.
+/*-
+ * Copyright (c) 1982, 1986 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the University of
+ *     California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.

  *
  *

- *     @(#)mman.h      7.1 (Berkeley) 6/4/86
+ *     @(#)mman.h      7.5 (Berkeley) 6/27/91
+ */
+
+/*
+ * Protections are chosen from these bits, or-ed together

  */
  */

+#define        PROT_READ       0x04    /* pages can be read */
+#define        PROT_WRITE      0x02    /* pages can be written */
+#define        PROT_EXEC       0x01    /* pages can be executed */
+
+/*
+ * Flags contain mapping type, sharing type and options.
+ * Mapping type; choose one
+ */
+#define        MAP_FILE        0x0001  /* mapped from a file or device */
+#define        MAP_ANON        0x0002  /* allocated from memory, swap space */
+#define        MAP_TYPE        0x000f  /* mask for type field */
+
+/*
+ * Sharing types; choose one
+ */
+#define        MAP_COPY        0x0020  /* "copy" region at mmap time */
+#define        MAP_SHARED      0x0010  /* share changes */
+#define        MAP_PRIVATE     0x0000  /* changes are private */
+
+/*
+ * Other flags
+ */
+#define        MAP_FIXED       0x0100  /* map addr must be exactly as requested */
+#define        MAP_NOEXTEND    0x0200  /* for MAP_FILE, don't change file size */
+#define        MAP_HASSEMPHORE 0x0400  /* region may contain semaphores */
+#define        MAP_INHERIT     0x0800  /* region is retained after exec */
+
+/*
+ * Advice to madvise
+ */
+#define        MADV_NORMAL     0       /* no further special treatment */
+#define        MADV_RANDOM     1       /* expect random page references */
+#define        MADV_SEQUENTIAL 2       /* expect sequential page references */
+#define        MADV_WILLNEED   3       /* will need these pages */
+#define        MADV_DONTNEED   4       /* dont need these pages */
+
+#ifndef KERNEL
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+/* Some of these int's should probably be size_t's */
+caddr_t        mmap __P((caddr_t, size_t, int, int, int, off_t));
+int    mprotect __P((caddr_t, int, int));
+int    munmap __P((caddr_t, int));
+int    msync __P((caddr_t, int));
+__END_DECLS

 
 

-/* protections are chosen from these bits, or-ed together */
-#define        PROT_READ       0x1             /* pages can be read */
-#define        PROT_WRITE      0x2             /* pages can be written */
-#define        PROT_EXEC       0x4             /* pages can be executed */
-
-/* sharing types: choose either SHARED or PRIVATE */
-#define        MAP_SHARED      1               /* share changes */
-#define        MAP_PRIVATE     2               /* changes are private */
-
-/* advice to madvise */
-#define        MADV_NORMAL     0               /* no further special treatment */
-#define        MADV_RANDOM     1               /* expect random page references */
-#define        MADV_SEQUENTIAL 2               /* expect sequential page references */
-#define        MADV_WILLNEED   3               /* will need these pages */
-#define        MADV_DONTNEED   4               /* dont need these pages */
+#endif /* !KERNEL */