2001-03-07 Roland McGrath <roland@frob.com>

	* store.h (store_write, store_write_meth_t): Make buffer arg const*.
	* copy.c (copy_write): Likewise.
	* device.c (dev_write): Likewise.
	* file.c (file_write): Likewise.
	(file_byte_write): Likewise.
	* rdwr.c (store_write): Likewise.
	* remap.c (remap_write): Likewise.
	* stripe.c (stripe_write): Likewise.
	* task.c (task_write): Likewise.
	* zero.c (zero_write): Likewise.

9 files changed, 35 insertions, 30 deletions

diff --git a/libstore/copy.c b/libstore/copy.c
index 25ea1259..b870f4fc 100644
--- a/libstore/copy.c
+++ b/libstore/copy.c
@@ -1,7 +1,6 @@
 /* Copy store backend
 
-   Copyright (C) 1995,96,97,99,2000 Free Software Foundation, Inc.
-
+   Copyright (C) 1995,96,97,99,2000,01 Free Software Foundation, Inc.
    Written by Miles Bader <miles@gnu.org>
 
    This task is part of the GNU Hurd.
@@ -59,7 +58,8 @@ copy_read (struct store *store,
 
 static error_t
 copy_write (struct store *store,
-	    store_offset_t addr, size_t index, void *buf, size_t len, size_t *amount)
+	    store_offset_t addr, size_t index,
+	    const void *buf, size_t len, size_t *amount)
 {
   char *data = store->hook + (addr * store->block_size);
 
diff --git a/libstore/device.c b/libstore/device.c
index 97fe8036..5a18c85b 100644
--- a/libstore/device.c
+++ b/libstore/device.c
@@ -1,6 +1,6 @@
 /* Mach device store backend
 
-   Copyright (C) 1995,96,97,99 Free Software Foundation, Inc.
+   Copyright (C) 1995,96,97,99,2001 Free Software Foundation, Inc.
    Written by Miles Bader <miles@gnu.org>
    This file is part of the GNU Hurd.
 
@@ -57,7 +57,8 @@ dev_read (struct store *store,
 
 static error_t
 dev_write (struct store *store,
-	   store_offset_t addr, size_t index, void *buf, mach_msg_type_number_t len,
+	   store_offset_t addr, size_t index,
+	   const void *buf, mach_msg_type_number_t len,
 	   mach_msg_type_number_t *amount)
 {
   return dev_error (device_write (store->port, 0, addr,
@@ -155,12 +156,12 @@ enforced (struct store *store)
 	    return EINVAL;
 
 	  assert (sizes_len == DEV_GET_SIZE_COUNT);
-	  
+
 	  if (sizes[DEV_GET_SIZE_RECORD_SIZE] != store->block_size
 	      || (store->runs[0].length !=
 		  sizes[DEV_GET_SIZE_DEVICE_SIZE] >> store->log2_block_size))
 	    return EINVAL;
-	
+
 	  return 0;
 	}
     }
@@ -266,12 +267,12 @@ store_device_create (device_t device, int flags, struct store **store)
       if (! err && sizes_len == DEV_GET_SIZE_COUNT)
 	{
 	  block_size = sizes[DEV_GET_SIZE_RECORD_SIZE];
-	  
+
 	  if (block_size)
 	    {
 	      run.start = 0;
 	      run.length = sizes[DEV_GET_SIZE_DEVICE_SIZE] / block_size;
-	      
+
 	      if (run.length * block_size != sizes[DEV_GET_SIZE_DEVICE_SIZE])
 		/* Bogus results (which some mach devices return).  */
 		block_size = 0;
diff --git a/libstore/file.c b/libstore/file.c
index 4f9a1b6e..8c62d85c 100644
--- a/libstore/file.c
+++ b/libstore/file.c
@@ -1,7 +1,7 @@
 /* File store backend
 
-   Copyright (C) 1995, 96, 97, 98 Free Software Foundation, Inc.
-   Written by Miles Bader <miles@gnu.ai.mit.edu>
+   Copyright (C) 1995,96,97,98,2001 Free Software Foundation, Inc.
+   Written by Miles Bader <miles@gnu.org>
    This file is part of the GNU Hurd.
 
    The GNU Hurd is free software; you can redistribute it and/or
@@ -38,7 +38,7 @@ file_read (struct store *store,
 
 static error_t
 file_write (struct store *store,
-	    store_offset_t addr, size_t index, void *buf, size_t len,
+	    store_offset_t addr, size_t index, const void *buf, size_t len,
 	    size_t *amount)
 {
   size_t bsize = store->block_size;
@@ -207,7 +207,8 @@ file_byte_read (struct store *store,
 
 static error_t
 file_byte_write (struct store *store,
-		 store_offset_t addr, size_t index, void *buf, size_t len,
+		 store_offset_t addr, size_t index,
+		 const void *buf, size_t len,
 		 size_t *amount)
 {
   return io_write (store->port, buf, len, addr, amount);
diff --git a/libstore/rdwr.c b/libstore/rdwr.c
index e79f56a2..f6652a12 100644
--- a/libstore/rdwr.c
+++ b/libstore/rdwr.c
@@ -1,7 +1,7 @@
 /* Store I/O
 
-   Copyright (C) 1995, 96, 97, 98, 1999 Free Software Foundation, Inc.
-   Written by Miles Bader <miles@gnu.ai.mit.edu>
+   Copyright (C) 1995,96,97,98,99,2001 Free Software Foundation, Inc.
+   Written by Miles Bader <miles@gnu.org>
    This file is part of the GNU Hurd.
 
    The GNU Hurd is free software; you can redistribute it and/or
@@ -95,7 +95,7 @@ store_next_run (struct store *store, struct store_run *runs_end,
    in AMOUNT.  ADDR is in BLOCKS (as defined by STORE->block_size).  */
 error_t
 store_write (struct store *store,
-	     store_offset_t addr, void *buf, size_t len, size_t *amount)
+	     store_offset_t addr, const void *buf, size_t len, size_t *amount)
 {
   error_t err;
   size_t index;
diff --git a/libstore/remap.c b/libstore/remap.c
index 6dd104e8..34a2f1a0 100644
--- a/libstore/remap.c
+++ b/libstore/remap.c
@@ -1,7 +1,7 @@
 /* Block address translation
 
-   Copyright (C) 1996, 1997, 1999 Free Software Foundation, Inc.
-   Written by Miles Bader <miles@gnu.ai.mit.edu>
+   Copyright (C) 1996,97,99,2001 Free Software Foundation, Inc.
+   Written by Miles Bader <miles@gnu.org>
    This file is part of the GNU Hurd.
 
    The GNU Hurd is free software; you can redistribute it and/or
@@ -35,7 +35,7 @@ remap_read (struct store *store,
 
 static error_t
 remap_write (struct store *store,
-	      store_offset_t addr, size_t index, void *buf, size_t len,
+	      store_offset_t addr, size_t index, const void *buf, size_t len,
 	      size_t *amount)
 {
   return store_write (store->children[0], addr, buf, len, amount);
diff --git a/libstore/store.h b/libstore/store.h
index 6d95746a..141b946f 100644
--- a/libstore/store.h
+++ b/libstore/store.h
@@ -125,7 +125,8 @@ struct store
 
 typedef error_t (*store_write_meth_t)(struct store *store,
 				      store_offset_t addr, size_t index,
-				      void *buf, mach_msg_type_number_t len,
+				      const void *buf,
+				      mach_msg_type_number_t len,
 				      mach_msg_type_number_t *amount);
 typedef error_t (*store_read_meth_t)(struct store *store,
 				     store_offset_t addr, size_t index,
@@ -296,7 +297,8 @@ error_t store_remap (struct store *source,
 /* Write LEN bytes from BUF to STORE at ADDR.  Returns the amount written in
    AMOUNT (in bytes).  ADDR is in BLOCKS (as defined by STORE->block_size).  */
 error_t store_write (struct store *store,
-		     store_offset_t addr, void *buf, size_t len, size_t *amount);
+		     store_offset_t addr, const void *buf, size_t len,
+		     size_t *amount);
 
 /* Read AMOUNT bytes from STORE at ADDR into BUF & LEN (which following the
    usual mach buffer-return semantics) to STORE at ADDR.  ADDR is in BLOCKS
diff --git a/libstore/stripe.c b/libstore/stripe.c
index 52a596df..daa0d0d3 100644
--- a/libstore/stripe.c
+++ b/libstore/stripe.c
@@ -1,6 +1,6 @@
 /* Striped store backend
 
-   Copyright (C) 1996,97,99 Free Software Foundation, Inc.
+   Copyright (C) 1996,97,99,2001 Free Software Foundation, Inc.
    Written by Miles Bader <miles@gnu.org>
    This file is part of the GNU Hurd.
 
@@ -49,8 +49,8 @@ stripe_read (struct store *store,
 
 static error_t
 stripe_write (struct store *store,
-	      store_offset_t addr, size_t index, void *buf, size_t len,
-	      size_t *amount)
+	      store_offset_t addr, size_t index,
+	      const void *buf, size_t len, size_t *amount)
 {
   struct store *stripe = store->children[index];
   return
diff --git a/libstore/task.c b/libstore/task.c
index aad91c2c..c25af7a9 100644
--- a/libstore/task.c
+++ b/libstore/task.c
@@ -1,7 +1,7 @@
 /* Mach task store backend
 
-   Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
-   Written by Miles Bader <miles@gnu.ai.mit.edu>
+   Copyright (C) 1995,96,97,2001 Free Software Foundation, Inc.
+   Written by Miles Bader <miles@gnu.org>
    This file is part of the GNU Hurd.
 
    The GNU Hurd is free software; you can redistribute it and/or
@@ -64,7 +64,8 @@ task_read (struct store *store,
 
 static error_t
 task_write (struct store *store,
-	    store_offset_t addr, size_t index, void *buf, size_t len, size_t *amount)
+	    store_offset_t addr, size_t index,
+	    const void *buf, size_t len, size_t *amount)
 {
   size_t bsize = store->block_size;
   error_t err = vm_write (store->port, addr * bsize, (vm_address_t)buf, len);
@@ -159,7 +160,7 @@ _store_task_create (task_t task, int flags, size_t block_size,
 			 task, flags, block_size, runs, num_runs, 0, store);
   else
     err = EINVAL;		/* block size less than page size.  */
-  
+
   if (! err)
     {
       pid_t pid;
diff --git a/libstore/zero.c b/libstore/zero.c
index 4452179b..3a17c1d8 100644
--- a/libstore/zero.c
+++ b/libstore/zero.c
@@ -1,6 +1,6 @@
 /* Zero store backend
 
-   Copyright (C) 1995,96,97,99,2000 Free Software Foundation, Inc.
+   Copyright (C) 1995,96,97,99,2000,01 Free Software Foundation, Inc.
    Written by Miles Bader <miles@gnu.org>
    This file is part of the GNU Hurd.
 
@@ -49,7 +49,7 @@ zero_read (struct store *store,
 
 static error_t
 zero_write (struct store *store,
-	    store_offset_t addr, size_t index, void *buf, size_t len,
+	    store_offset_t addr, size_t index, const void *buf, size_t len,
 	    size_t *amount)
 {
   return 0;