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Part 2: Added volatile flag for datastores

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This commit is contained in:
Olof hagsand 2024-02-07 17:42:58 +01:00
parent a668cc2d7c
commit 840233d6fa
5 changed files with 153 additions and 87 deletions
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40
lib/src/clixon_data.c
View file

@ -864,46 +864,6 @@ clicon_argv_set(clixon_handle h,
return retval;
}
/*! Get xml database element including id, xml cache, empty on startup and dirty bit
*
* @param[in] h Clixon handle
* @param[in] db Name of database
* @retval de Database element
* @retval NULL None found
*/
db_elmnt *
clicon_db_elmnt_get(clixon_handle h,
const char *db)
{
clicon_hash_t *cdat = clicon_db_elmnt(h);
void *p;
if ((p = clicon_hash_value(cdat, db, NULL)) != NULL)
return (db_elmnt *)p;
return NULL;
}
/*! Set xml database element including id, xml cache, empty on startup and dirty bit
*
* @param[in] h Clixon handle
* @param[in] db Name of database
* @param[in] de Database element
* @retval 0 OK
* @retval -1 Error
* @see xmldb_disconnect
*/
int
clicon_db_elmnt_set(clixon_handle h,
const char *db,
db_elmnt *de)
{
clicon_hash_t *cdat = clicon_db_elmnt(h);
if (clicon_hash_add(cdat, db, de, sizeof(*de))==NULL)
return -1;
return 0;
}
/*! Get session id
*
* @param[in] h Clixon handle

134
lib/src/clixon_datastore.c
View file

@ -85,6 +85,46 @@
#include "clixon_datastore_write.h"
#include "clixon_datastore_read.h"
/*! Get xml database element including id, xml cache, empty on startup and dirty bit
*
* @param[in] h Clixon handle
* @param[in] db Name of database
* @retval de Database element
* @retval NULL None found
*/
db_elmnt *
clicon_db_elmnt_get(clixon_handle h,
const char *db)
{
clicon_hash_t *cdat = clicon_db_elmnt(h);
void *p;
if ((p = clicon_hash_value(cdat, db, NULL)) != NULL)
return (db_elmnt *)p;
return NULL;
}
/*! Set xml database element including id, xml cache, empty on startup and dirty bit
*
* @param[in] h Clixon handle
* @param[in] db Name of database
* @param[in] de Database element
* @retval 0 OK
* @retval -1 Error
* @see xmldb_disconnect
*/
int
clicon_db_elmnt_set(clixon_handle h,
const char *db,
db_elmnt *de)
{
clicon_hash_t *cdat = clicon_db_elmnt(h);
if (clicon_hash_add(cdat, db, de, sizeof(*de))==NULL)
return -1;
return 0;
}
/*! Translate from symbolic database name to actual filename in file-system
*
* @param[in] th text handle handle
@ -182,14 +222,14 @@ xmldb_copy(clixon_handle h,
const char *from,
const char *to)
{
int retval = -1;
char *fromfile = NULL;
char *tofile = NULL;
db_elmnt *de1 = NULL; /* from */
db_elmnt *de2 = NULL; /* to */
db_elmnt de0 = {0,};
cxobj *x1 = NULL; /* from */
cxobj *x2 = NULL; /* to */
int retval = -1;
char *fromfile = NULL;
char *tofile = NULL;
db_elmnt *de1 = NULL; /* from */
db_elmnt *de2 = NULL; /* to */
db_elmnt de0 = {0,};
cxobj *x1 = NULL; /* from */
cxobj *x2 = NULL; /* to */
clixon_debug(CLIXON_DBG_DATASTORE, "%s %s", from, to);
/* XXX lock */
@ -563,6 +603,30 @@ xmldb_modified_get(clixon_handle h,
return de->de_modified;
}
/*! Set modified flag from datastore
*
* @param[in] h Clixon handle
* @param[in] db Database name
* @param[in] value 0 or 1
* @retval 0 OK
* @retval -1 Error (datastore does not exist)
* @note This only makes sense for "candidate", see RFC 6241 Sec 7.5
*/
int
xmldb_modified_set(clixon_handle h,
const char *db,
int value)
{
db_elmnt *de;
if ((de = clicon_db_elmnt_get(h, db)) == NULL){
clixon_err(OE_CFG, EFAULT, "datastore %s does not exist", db);
return -1;
}
de->de_modified = value;
return 0;
}
/*! Get empty flag from datastore (the datastore was empty ON LOAD)
*
* @param[in] h Clixon handle
@ -584,18 +648,62 @@ xmldb_empty_get(clixon_handle h,
return de->de_empty;
}
/*! Set modified flag from datastore
/*! Set empty flag from datastore (the datastore was empty ON LOAD)
*
* @param[in] h Clixon handle
* @param[in] db Database name
* @param[in] value 0 or 1
* @retval 0 OK
* @retval -1 Error (datastore does not exist)
* @note This only makes sense for "candidate", see RFC 6241 Sec 7.5
* @note This only works if db cache is used,...
*/
int
xmldb_modified_set(clixon_handle h,
xmldb_empty_set(clixon_handle h,
const char *db,
int value)
{
db_elmnt *de;
if ((de = clicon_db_elmnt_get(h, db)) == NULL){
clixon_err(OE_CFG, EFAULT, "datastore %s does not exist", db);
return -1;
}
de->de_empty = value;
return 0;
}
/*! Get volatile flag of datastore
*
* Whether to sync to disk on every update (ie xmldb_put)
* @param[in] h Clixon handle
* @param[in] db Database name
* @retval 1 Db was empty on load
* @retval 0 Db was not empty on load
* @retval -1 Error (datastore does not exist)
*/
int
xmldb_volatile_get(clixon_handle h,
const char *db)
{
db_elmnt *de;
if ((de = clicon_db_elmnt_get(h, db)) == NULL){
clixon_err(OE_CFG, EFAULT, "datastore %s does not exist", db);
return -1;
}
return de->de_volatile;
}
/*! Set datastore status of datastore
*
* Whether to sync to disk on every update (ie xmldb_put)
* @param[in] h Clixon handle
* @param[in] db Database name
* @param[in] value 0 or 1
* @retval 0 OK
* @retval -1 Error (datastore does not exist)
*/
int
xmldb_volatile_set(clixon_handle h,
const char *db,
int value)
{
@ -605,7 +713,7 @@ xmldb_modified_set(clixon_handle h,
clixon_err(OE_CFG, EFAULT, "datastore %s does not exist", db);
return -1;
}
de->de_modified = value;
de->de_volatile = value;
return 0;
}

7
lib/src/clixon_datastore_write.c
View file

@ -1314,9 +1314,10 @@ xmldb_put(clixon_handle h,
de0.de_xml = x0;
de0.de_empty = (xml_child_nr(de0.de_xml) == 0);
clicon_db_elmnt_set(h, db, &de0);
/* Write cache to file */
if (xmldb_write_cache2file(h, db) < 0)
goto done;
/* Write cache to file unless volatile */
if (xmldb_volatile_get(h, db) == 0)
if (xmldb_write_cache2file(h, db) < 0)
goto done;
retval = 1;
done:
clixon_debug(CLIXON_DBG_DATASTORE | CLIXON_DBG_DETAIL, "retval:%d", retval);

3
lib/src/clixon_xml_default.c
View file

@ -72,6 +72,9 @@
#include "clixon_xml_nsctx.h"
#include "clixon_xml_map.h"
#include "clixon_xml_default.h"
#include "clixon_netconf_lib.h"
#include "clixon_yang_module.h"
#include "clixon_datastore.h"
/* Forward */
static int xml_default(yang_stmt *yt, cxobj *xt, int state);

56
lib/src/clixon_xml_map.c
View file

@ -579,8 +579,8 @@ xml_tree_equal(cxobj *x0,
{
int retval = 1; /* Not equal */
int eq;
yang_stmt *yc0;
yang_stmt *yc1;
yang_stmt *y0c;
yang_stmt *y1c;
char *b0;
char *b1;
cxobj *x0c; /* x0 child */
@ -594,41 +594,35 @@ xml_tree_equal(cxobj *x0,
for (;;){
if (x0c == NULL && x1c == NULL)
goto ok;
else if (x0c == NULL){
/* If cl:ignore-compare extension, return equal */
if ((yc1 = xml_spec(x1c)) != NULL){
if (yang_extension_value(yc1, "ignore-compare", CLIXON_LIB_NS, &extflag, NULL) < 0)
goto done;
if (extflag)
goto ok;
}
goto done;
}
else if (x1c == NULL){
if ((yc0 = xml_spec(x0c)) != NULL){
if (yang_extension_value(yc0, "ignore-compare", CLIXON_LIB_NS, &extflag, NULL) < 0)
goto done;
if (extflag)
goto ok;
}
goto done;
}
if ((yc0 = xml_spec(x0c)) != NULL){
if (yang_extension_value(yc0, "ignore-compare", CLIXON_LIB_NS, &extflag, NULL) < 0)
/* If cl:ignore-compare extension, return equal */
if (x0c && (y0c = xml_spec(x0c)) != NULL){
if (yang_extension_value(y0c, "ignore-compare", CLIXON_LIB_NS, &extflag, NULL) < 0)
goto done;
if (extflag){ /* skip */
x0c = xml_child_each(x0, x0c, CX_ELMNT);
continue;
if (x1c) {
x0c = xml_child_each(x0, x0c, CX_ELMNT);
continue;
}
else
goto ok;
}
}
if ((yc1 = xml_spec(x1c)) != NULL){
if (yang_extension_value(yc1, "ignore-compare", CLIXON_LIB_NS, &extflag, NULL) < 0)
if (x1c && (y1c = xml_spec(x1c)) != NULL){
if (yang_extension_value(y1c, "ignore-compare", CLIXON_LIB_NS, &extflag, NULL) < 0)
goto done;
if (extflag){ /* skip */
x1c = xml_child_each(x1, x1c, CX_ELMNT);
continue;
if (x1c) {
x1c = xml_child_each(x1, x1c, CX_ELMNT);
continue;
}
else
goto ok;
}
}
if (x0c == NULL)
goto done;
else if (x1c == NULL)
goto done;
/* Both x0c and x1c exists, check if they are yang-equal. */
if ((eq = xml_cmp(x0c, x1c, 0, 0, NULL)) != 0){
goto done;
@ -637,11 +631,11 @@ xml_tree_equal(cxobj *x0,
/* xml-spec NULL could happen with anydata children for example,
* if so, continue compare children but without yang
*/
if (yc0 && yc1 && yc0 != yc1){ /* choice */
if (y0c && y1c && y0c != y1c){ /* choice */
goto done;
}
else
if (yc0 && yang_keyword_get(yc0) == Y_LEAF){
if (y0c && yang_keyword_get(y0c) == Y_LEAF){
/* if x0c and x1c are leafs w bodies, then they may be changed */
b0 = xml_body(x0c);
b1 = xml_body(x1c);