[SCM] Samba Shared Repository - branch v3-2-test updated -
initial-v3-2-unstable-1351-g3f081eb
Günther Deschner
gd at samba.org
Mon Jan 14 18:38:44 GMT 2008
The branch, v3-2-test has been updated
via 3f081ebeadf30a7943723703ecae479e0412c60c (commit)
from 558ce4ec3eaa93c827316d92c346f35c140fadf0 (commit)
http://gitweb.samba.org/?p=samba.git;a=shortlog;h=v3-2-test
- Log -----------------------------------------------------------------
commit 3f081ebeadf30a7943723703ecae479e0412c60c
Author: Michael Adam <obnox at samba.org>
Date: Mon Jan 14 18:31:11 2008 +0100
Add detection for need of update to the registry db.
This only detects if the tdb sequence number has changed
since the data has last been read.
Michael
-----------------------------------------------------------------------
Summary of changes:
source/include/reg_objects.h | 4 ++++
source/registry/reg_api.c | 8 ++++++--
source/registry/reg_db.c | 29 ++++++++++++++++++++++++++++-
source/registry/reg_frontend_hilvl.c | 29 +++++++++++++++++++++++++++++
source/registry/reg_printing.c | 2 +-
source/registry/reg_shares.c | 2 +-
source/registry/reg_smbconf.c | 4 +++-
7 files changed, 72 insertions(+), 6 deletions(-)
Changeset truncated at 500 lines:
diff --git a/source/include/reg_objects.h b/source/include/reg_objects.h
index f6cf9cc..23a14e6 100644
--- a/source/include/reg_objects.h
+++ b/source/include/reg_objects.h
@@ -61,6 +61,7 @@ struct registry_value {
typedef struct {
uint32 num_values;
REGISTRY_VALUE **values;
+ int seqnum;
} REGVAL_CTR;
/* container for registry subkey names */
@@ -68,6 +69,7 @@ typedef struct {
typedef struct {
uint32 num_subkeys;
char **subkeys;
+ int seqnum;
} REGSUBKEY_CTR;
/*
@@ -128,6 +130,8 @@ typedef struct {
struct security_descriptor **psecdesc);
WERROR (*set_secdesc)(const char *key,
struct security_descriptor *sec_desc);
+ bool (*subkeys_need_update)(REGSUBKEY_CTR *subkeys);
+ bool (*values_need_update)(REGVAL_CTR *values);
} REGISTRY_OPS;
typedef struct {
diff --git a/source/registry/reg_api.c b/source/registry/reg_api.c
index bb410e6..8bbdb6a 100644
--- a/source/registry/reg_api.c
+++ b/source/registry/reg_api.c
@@ -27,7 +27,9 @@
static WERROR fill_value_cache(struct registry_key *key)
{
if (key->values != NULL) {
- return WERR_OK;
+ if (!reg_values_need_update(key->key, key->values)) {
+ return WERR_OK;
+ }
}
if (!(key->values = TALLOC_ZERO_P(key, REGVAL_CTR))) {
@@ -44,7 +46,9 @@ static WERROR fill_value_cache(struct registry_key *key)
static WERROR fill_subkey_cache(struct registry_key *key)
{
if (key->subkeys != NULL) {
- return WERR_OK;
+ if (!reg_subkeys_need_update(key->key, key->subkeys)) {
+ return WERR_OK;
+ }
}
if (!(key->subkeys = TALLOC_ZERO_P(key, REGSUBKEY_CTR))) {
diff --git a/source/registry/reg_db.c b/source/registry/reg_db.c
index f50a418..c4bfc2b 100644
--- a/source/registry/reg_db.c
+++ b/source/registry/reg_db.c
@@ -622,7 +622,15 @@ int regdb_fetch_keys(const char *key, REGSUBKEY_CTR *ctr)
}
strupper_m(path);
+ if (tdb_read_lock_bystring_with_timeout(tdb_reg->tdb, path, 10) == -1) {
+ return 0;
+ }
+
dbuf = tdb_fetch_bystring(tdb_reg->tdb, path);
+ ctr->seqnum = regdb_get_seqnum();
+
+ tdb_read_unlock_bystring(tdb_reg->tdb, path);
+
buf = dbuf.dptr;
buflen = dbuf.dsize;
@@ -750,7 +758,14 @@ int regdb_fetch_values( const char* key, REGVAL_CTR *values )
return 0;
}
+ if (tdb_read_lock_bystring_with_timeout(tdb_reg->tdb, keystr, 10) == -1) {
+ return 0;
+ }
+
data = tdb_fetch_bystring(tdb_reg->tdb, keystr);
+ values->seqnum = regdb_get_seqnum();
+
+ tdb_read_unlock_bystring(tdb_reg->tdb, keystr);
if (!data.dptr) {
/* all keys have zero values by default */
@@ -907,6 +922,16 @@ static WERROR regdb_set_secdesc(const char *key,
return err;
}
+bool regdb_subkeys_need_update(REGSUBKEY_CTR *subkeys)
+{
+ return (regdb_get_seqnum() != subkeys->seqnum);
+}
+
+bool regdb_values_need_update(REGVAL_CTR *values)
+{
+ return (regdb_get_seqnum() != values->seqnum);
+}
+
/*
* Table of function pointers for default access
*/
@@ -918,5 +943,7 @@ REGISTRY_OPS regdb_ops = {
regdb_store_values,
NULL,
regdb_get_secdesc,
- regdb_set_secdesc
+ regdb_set_secdesc,
+ regdb_subkeys_need_update,
+ regdb_values_need_update
};
diff --git a/source/registry/reg_frontend_hilvl.c b/source/registry/reg_frontend_hilvl.c
index a4b78b2..73fcf87 100644
--- a/source/registry/reg_frontend_hilvl.c
+++ b/source/registry/reg_frontend_hilvl.c
@@ -214,3 +214,32 @@ WERROR regkey_set_secdesc(REGISTRY_KEY *key,
return WERR_ACCESS_DENIED;
}
+
+/**
+ * Check whether the in-memory version of the subkyes of a
+ * registry key needs update from disk.
+ */
+bool reg_subkeys_need_update(REGISTRY_KEY *key, REGSUBKEY_CTR *subkeys)
+{
+ if (key->hook && key->hook->ops && key->hook->ops->subkeys_need_update)
+ {
+ return key->hook->ops->subkeys_need_update(subkeys);
+ }
+
+ return false;
+}
+
+/**
+ * Check whether the in-memory version of the values of a
+ * registry key needs update from disk.
+ */
+bool reg_values_need_update(REGISTRY_KEY *key, REGVAL_CTR *values)
+{
+ if (key->hook && key->hook->ops && key->hook->ops->values_need_update)
+ {
+ return key->hook->ops->values_need_update(values);
+ }
+
+ return false;
+}
+
diff --git a/source/registry/reg_printing.c b/source/registry/reg_printing.c
index 2ca74f7..5be0796 100644
--- a/source/registry/reg_printing.c
+++ b/source/registry/reg_printing.c
@@ -1266,5 +1266,5 @@ REGISTRY_OPS printing_ops = {
regprint_fetch_reg_values,
regprint_store_reg_keys,
regprint_store_reg_values,
- NULL, NULL, NULL
+ NULL, NULL, NULL, NULL, NULL
};
diff --git a/source/registry/reg_shares.c b/source/registry/reg_shares.c
index 178f23e..4ac6e1d 100644
--- a/source/registry/reg_shares.c
+++ b/source/registry/reg_shares.c
@@ -159,7 +159,7 @@ REGISTRY_OPS shares_reg_ops = {
shares_value_info,
shares_store_subkey,
shares_store_value,
- NULL, NULL, NULL
+ NULL, NULL, NULL, NULL, NULL
};
diff --git a/source/registry/reg_smbconf.c b/source/registry/reg_smbconf.c
index 116cde9..8dfb745 100644
--- a/source/registry/reg_smbconf.c
+++ b/source/registry/reg_smbconf.c
@@ -271,5 +271,7 @@ REGISTRY_OPS smbconf_reg_ops = {
smbconf_store_values,
smbconf_reg_access_check,
smbconf_get_secdesc,
- smbconf_set_secdesc
+ smbconf_set_secdesc,
+ NULL,
+ NULL
};
--
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