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-rw-r--r--libstore/ChangeLog10
-rw-r--r--libstore/bunzip2.c10
-rw-r--r--libstore/copy.c21
-rw-r--r--libstore/encode.c47
-rw-r--r--libstore/gunzip.c10
-rw-r--r--libstore/rdwr.c7
-rw-r--r--libstore/zero.c19
7 files changed, 75 insertions, 49 deletions
diff --git a/libstore/ChangeLog b/libstore/ChangeLog
index 25153114..4528a079 100644
--- a/libstore/ChangeLog
+++ b/libstore/ChangeLog
@@ -5,6 +5,16 @@
* copy.c: Likewise.
* gunzip.c: Likewise.
* bunzip2.c: Likewise.
+
+1999-07-09 Thomas Bushnell, BSG <tb@mit.edu>
+
+ * bunzip2.c (bunzip2): Use mmap instead of vm_allocate.
+ * copy.c (copy_read): Likewise.
+ (copy_clone): Likewise.
+ * encode.c (store_encode): Likewise.
+ * gunzip.c (gunzip): Likewise.
+ * rdwr.c (store_read): Likewise.
+ * zero.c (zero_read): Likewise.
1999-07-08 Roland McGrath <roland@baalperazim.frob.com>
diff --git a/libstore/bunzip2.c b/libstore/bunzip2.c
index 3b7ecb0e..e1ec5808 100644
--- a/libstore/bunzip2.c
+++ b/libstore/bunzip2.c
@@ -135,10 +135,9 @@ bunzip2 (struct store *from, void **buf, size_t *buf_len)
if (zerr)
/* Can't do that, try to make a bigger buffer elsewhere. */
{
- new_buf = old_buf;
- zerr =
- vm_allocate (mach_task_self (),
- (vm_address_t *)&new_buf, new_buf_len, 1);
+ new_buf = mmap (0, new_buf_len, PROT_READ|PROT_WRITE,
+ MAP_ANON, 0, 0);
+ zerr = (new_buf == (void *) -1) ? errno : 0;
if (zerr)
longjmp (zerr_jmp_buf, 1);
@@ -171,7 +170,8 @@ bunzip2 (struct store *from, void **buf, size_t *buf_len)
/* Try to guess a reasonable output buffer size. */
*buf_len = round_page (from->size * 2);
- zerr = vm_allocate (mach_task_self (), (vm_address_t *)buf, *buf_len, 1);
+ *buf = mmap (0, *buf_len, PROT_READ|PROT_WRITE, MAP_ANON, 0, 0);
+ zerr = (*buf == (void *) -1) ? errno : 0;
if (zerr)
return zerr;
diff --git a/libstore/copy.c b/libstore/copy.c
index ded612fe..0c1834fa 100644
--- a/libstore/copy.c
+++ b/libstore/copy.c
@@ -34,10 +34,9 @@ copy_read (struct store *store,
if (*len < amount)
/* Have to allocate memory for the return value. */
{
- error_t err =
- vm_allocate (mach_task_self (), (vm_address_t *)buf, amount, 1);
- if (err)
- return err;
+ *buf = mmap (0, amount, PROT_READ|PROT_WRITE, MAP_ANON, 0, 0);
+ if (*buf == (void *)-1))
+ return errno;
}
bcopy (store->hook + (addr * store->block_size), *buf, amount);
@@ -124,11 +123,15 @@ copy_cleanup (struct store *store)
error_t
copy_clone (const struct store *from, struct store *to)
{
- error_t err =
- vm_allocate (mach_task_self (), (vm_address_t *)&to->hook, to->size, 1);
- if (! err)
- bcopy (from->hook, to->hook, from->size);
- return err;
+ void *buf;
+ buf = mmap (0, to->size, PROT_READ|PROT_WRITE, MAP_ANON, 0, 0);
+ if (buf != (void *) -1)
+ {
+ to->hook = buf;
+ bcopy (from->hook, to->hook, from->size);
+ return 0;
+ }
+ return errno;
}
struct store_class
diff --git a/libstore/encode.c b/libstore/encode.c
index f9896a9d..834a0d16 100644
--- a/libstore/encode.c
+++ b/libstore/encode.c
@@ -1,6 +1,6 @@
/* Store wire encoding
- Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 1999 Free Software Foundation, Inc.
Written by Miles Bader <miles@gnu.ai.mit.edu>
This file is part of the GNU Hurd.
@@ -80,6 +80,7 @@ store_std_leaf_encode (const struct store *store, struct store_enc *enc)
error_t
store_encode (const struct store *store, struct store_enc *enc)
{
+ void *buf;
error_t err;
const struct store_class *class = store->class;
/* We zero each vector length for the allocate_encoding method to work, so
@@ -100,22 +101,36 @@ store_encode (const struct store *store, struct store_enc *enc)
if (err)
return err;
+ errno = 0;
if (enc->num_ports > init_num_ports)
- err = vm_allocate (mach_task_self (),
- (vm_address_t *)&enc->ports,
- enc->num_ports * sizeof *enc->ports, 1);
- if (!err && enc->num_ints > init_num_ints)
- err = vm_allocate (mach_task_self (),
- (vm_address_t *)&enc->ints,
- enc->num_ints * sizeof *enc->ints, 1);
- if (!err && enc->num_offsets > init_num_offsets)
- err = vm_allocate (mach_task_self (),
- (vm_address_t *)&enc->offsets,
- enc->num_offsets * sizeof *enc->offsets, 1);
- if (!err && enc->data_len > init_data_len)
- err = vm_allocate (mach_task_self (),
- (vm_address_t *)&enc->data, enc->data_len, 1);
-
+ {
+ buf = mmap (0, enc->num_ports * sizeof *enc->ports,
+ PROT_READ|PROT_WRITE, MAP_ANON, 0, 0);
+ if (buf != (void *) -1)
+ enc->ports = buf;
+ }
+ if (!errno && enc->num_ints > init_num_ints)
+ {
+ buf = mmap (0, enc->num_ints * sizeof *enc->ints,
+ PROT_READ|PROT_WRITE, MAP_ANON, 0, 0);
+ if (buf != (void *) -1)
+ enc->ints = buf;
+ }
+ if (!errno && enc->num_offsets > init_num_offsets)
+ {
+ buf = mmap (0, enc->num_offsets * sizeof *enc->offsets,
+ PROT_READ|PROT_WRITE, MAP_ANON, 0, 0);
+ if (buf != (void *) -1)
+ enc->offsets = buf;
+
+ }
+ if (!errno && enc->data_len > init_data_len)
+ {
+ buf = mmap (0, enc->data_len, PROT_READ|PROT_WRITE, MAP_ANON, 0, 0);
+ if (buf != (void *) -1)
+ enc->data = buf;
+ }
+ err = errno
if (! err)
err = (*class->encode) (store, enc);
diff --git a/libstore/gunzip.c b/libstore/gunzip.c
index eb2355e8..2e868219 100644
--- a/libstore/gunzip.c
+++ b/libstore/gunzip.c
@@ -142,10 +142,9 @@ gunzip (struct store *from, void **buf, size_t *buf_len)
if (zerr)
/* Can't do that, try to make a bigger buffer elsewhere. */
{
- new_buf = old_buf;
- zerr =
- vm_allocate (mach_task_self (),
- (vm_address_t *)&new_buf, new_buf_len, 1);
+ new_buf = mmap (0, new_buf_len, PROT_READ|PROT_WRITE,
+ MAP_ANON, 0, 0);
+ zerr = (new_buf == (void *) -1) ? errno : 0;
if (zerr)
longjmp (zerr_jmp_buf, 1);
@@ -178,7 +177,8 @@ gunzip (struct store *from, void **buf, size_t *buf_len)
/* Try to guess a reasonable output buffer size. */
*buf_len = round_page (from->size * 2);
- zerr = vm_allocate (mach_task_self (), (vm_address_t *)buf, *buf_len, 1);
+ *buf = mmap (0, *buf_len, PROT_READ|PROT_WRITE, MAP_ANON, 0, 0);
+ zerr = (*buf == (void *) -1) ? errno : 0;
if (zerr)
return zerr;
diff --git a/libstore/rdwr.c b/libstore/rdwr.c
index 42006ad5..c5059536 100644
--- a/libstore/rdwr.c
+++ b/libstore/rdwr.c
@@ -226,10 +226,9 @@ store_read (struct store *store,
make room. */
{
whole_buf_len = amount;
- err = vm_allocate (mach_task_self (),
- (vm_address_t *)&whole_buf, amount, 1);
- if (err)
- return err; /* Punt early, there's nothing to clean up. */
+ whole_buf = mmap (0, amount, PROT_READ|PROT_WRITE, MAP_ANON, 0, 0);
+ if (whole_buf == (void *) -1)
+ return errno; /* Punt early, there's nothing to clean up. */
}
buf_end = whole_buf;
diff --git a/libstore/zero.c b/libstore/zero.c
index d94cbdcf..33e34142 100644
--- a/libstore/zero.c
+++ b/libstore/zero.c
@@ -1,6 +1,6 @@
/* Zero store backend
- Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1995, 1996, 1997, 1999 Free Software Foundation, Inc.
Written by Miles Bader <miles@gnu.ai.mit.edu>
This file is part of the GNU Hurd.
@@ -32,18 +32,17 @@ zero_read (struct store *store,
{
if (*len < amount)
{
- error_t err =
- vm_allocate (mach_task_self (), (vm_address_t *)buf, amount, 1);
- if (! err)
- *len = amount;
- return err;
- }
- else
- {
- bzero (*buf, amount);
+ *buf = mmap (0, amount, PROT_READ|PROT_WRITE, MAP_ANON, 0, 0);
+ if (*buf == (void *) -1)
+ return errno;
*len = amount;
return 0;
}
+ else
+ bzero (*buf, amount);
+
+ *len = amount;
+ return 0;
}
static error_t
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-16 22:45:39 +0000