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datastore handles

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This commit is contained in:
Olof hagsand 2017-04-15 19:42:35 +02:00
parent d8fa7bc033
commit 540cd96e74
21 changed files with 286 additions and 146 deletions
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204
lib/src/clixon_xml_db.c
View file

@ -59,17 +59,15 @@
#include "clixon_handle.h"
#include "clixon_xml.h"
#include "clixon_yang.h"
#include "clixon_plugin.h"
#include "clixon_options.h"
#include "clixon_xml_db.h"
static struct xmldb_api *_xa_api = NULL;
/*! Load a specific plugin, call its init function and add it to plugins list
/*! Load an xmldb storage plugin according to filename
* If init function fails (not found, wrong version, etc) print a log and dont
* add it.
* @param[in] name Filename (complete path) of plugin
* @param[in] h CLicon handle
* @param[in] filename Actual filename with path
* @param[out] plugin Plugin data structure for invoking. Dealloc with free
*/
int
xmldb_plugin_load(clicon_handle h,
@ -78,8 +76,9 @@ xmldb_plugin_load(clicon_handle h,
int retval = -1;
char *dlerrcode;
plugin_init_t *initfun;
void *handle = NULL;
plghndl_t handle = NULL;
char *error;
struct xmldb_api *xa = NULL;
dlerror(); /* Clear any existing error */
if ((handle = dlopen(filename, RTLD_NOW|RTLD_GLOBAL)) == NULL) {
@ -94,21 +93,27 @@ xmldb_plugin_load(clicon_handle h,
XMLDB_PLUGIN_INIT_FN, dlerrcode);
goto fail;
}
if ((_xa_api = initfun(XMLDB_API_VERSION)) == NULL) {
if ((xa = initfun(XMLDB_API_VERSION)) == NULL) {
clicon_log(LOG_WARNING, "%s: failed when running init function %s: %s",
filename, XMLDB_PLUGIN_INIT_FN, errno?strerror(errno):"");
goto fail;
}
if (_xa_api->xa_version != XMLDB_API_VERSION){
if (xa->xa_version != XMLDB_API_VERSION){
clicon_log(LOG_WARNING, "%s: Unexpected plugin version number: %d",
filename, _xa_api->xa_version);
filename, xa->xa_version);
goto fail;
}
if (_xa_api->xa_magic != XMLDB_API_MAGIC){
if (xa->xa_magic != XMLDB_API_MAGIC){
clicon_log(LOG_WARNING, "%s: Wrong plugin magic number: %x",
filename, _xa_api->xa_magic);
filename, xa->xa_magic);
goto fail;
}
/* Add plugin */
if (clicon_xmldb_plugin_set(h, handle) < 0)
goto done;
/* Add API */
if (clicon_xmldb_api_set(h, xa) < 0)
goto done;
clicon_log(LOG_WARNING, "xmldb plugin %s loaded", filename);
retval = 0;
done:
@ -120,11 +125,41 @@ xmldb_plugin_load(clicon_handle h,
goto done;
}
/*! XXX: fixme */
/*! Unload the xmldb storage plugin */
int
xmldb_plugin_unload(clicon_handle h)
{
return 0;
int retval = -1;
plghndl_t handle;
struct xmldb_api *xa;
xmldb_handle xh;
char *error;
if ((handle = clicon_xmldb_plugin_get(h)) == NULL){
clicon_err(OE_PLUGIN, errno, "No plugin handle");
goto done;
}
/* If connected storage handle then disconnect */
if ((xh = clicon_xmldb_handle_get(h)) != NULL)
xmldb_disconnect(h); /* sets xmldb handle to NULL */
/* Deregister api */
if ((xa = clicon_xmldb_api_get(h)) != NULL){
/* Call plugin_exit */
if (xa->xa_plugin_exit_fn != NULL)
xa->xa_plugin_exit_fn();
/* Deregister API (it is allocated in plugin) */
clicon_xmldb_api_set(h, NULL);
}
/* Unload plugin */
dlerror(); /* Clear any existing error */
if (dlclose(handle) != 0) {
error = (char*)dlerror();
clicon_err(OE_PLUGIN, errno, "dlclose: %s\n", error ? error : "Unknown error");
/* Just report no -1 return*/
}
retval = 0;
done:
return retval;
}
/*! Connect to a datastore plugin
@ -139,21 +174,21 @@ xmldb_plugin_unload(clicon_handle h)
int
xmldb_connect(clicon_handle h)
{
int retval = -1;
xmldb_handle xh;
int retval = -1;
xmldb_handle xh;
struct xmldb_api *xa;
if (_xa_api == NULL){
if ((xa = clicon_xmldb_api_get(h)) == NULL){
clicon_err(OE_DB, 0, "No xmldb plugin");
goto done;
}
if (_xa_api->xa_connect_fn == NULL){
if (xa->xa_connect_fn == NULL){
clicon_err(OE_DB, 0, "No xmldb function");
goto done;
}
if ((xh = _xa_api->xa_connect_fn()) == NULL)
if ((xh = xa->xa_connect_fn()) == NULL)
goto done;
clicon_handle_xmldb_set(h, xh);
clicon_xmldb_handle_set(h, xh);
retval = 0;
done:
return retval;
@ -168,22 +203,23 @@ xmldb_disconnect(clicon_handle h)
{
int retval = -1;
xmldb_handle xh;
struct xmldb_api *xa;
if (_xa_api == NULL){
if ((xa = clicon_xmldb_api_get(h)) == NULL){
clicon_err(OE_DB, 0, "No xmldb plugin");
goto done;
}
if (_xa_api->xa_disconnect_fn == NULL){
if (xa->xa_disconnect_fn == NULL){
clicon_err(OE_DB, 0, "No xmldb function");
goto done;
}
if ((xh = clicon_handle_xmldb_get(h)) == NULL){
if ((xh = clicon_xmldb_handle_get(h)) == NULL){
clicon_err(OE_DB, 0, "Already disconnected from datastore plugin");
goto done;
}
if (_xa_api->xa_disconnect_fn(xh) < 0)
if (xa->xa_disconnect_fn(xh) < 0)
goto done;
clicon_handle_xmldb_set(h, NULL);
clicon_xmldb_handle_set(h, NULL);
retval = 0;
done:
return retval;
@ -203,20 +239,21 @@ xmldb_getopt(clicon_handle h,
{
int retval = -1;
xmldb_handle xh;
struct xmldb_api *xa;
if (_xa_api == NULL){
if ((xa = clicon_xmldb_api_get(h)) == NULL){
clicon_err(OE_DB, 0, "No xmldb plugin");
goto done;
}
if (_xa_api->xa_getopt_fn == NULL){
if (xa->xa_getopt_fn == NULL){
clicon_err(OE_DB, 0, "No xmldb function");
goto done;
}
if ((xh = clicon_handle_xmldb_get(h)) == NULL){
if ((xh = clicon_xmldb_handle_get(h)) == NULL){
clicon_err(OE_DB, 0, "Not connected to datastore plugin");
goto done;
}
retval = _xa_api->xa_getopt_fn(xh, optname, value);
retval = xa->xa_getopt_fn(xh, optname, value);
done:
return retval;
}
@ -235,20 +272,21 @@ xmldb_setopt(clicon_handle h,
{
int retval = -1;
xmldb_handle xh;
struct xmldb_api *xa;
if (_xa_api == NULL){
if ((xa = clicon_xmldb_api_get(h)) == NULL){
clicon_err(OE_DB, 0, "No xmldb plugin");
goto done;
}
if (_xa_api->xa_setopt_fn == NULL){
if (xa->xa_setopt_fn == NULL){
clicon_err(OE_DB, 0, "No xmldb function");
goto done;
}
if ((xh = clicon_handle_xmldb_get(h)) == NULL){
if ((xh = clicon_xmldb_handle_get(h)) == NULL){
clicon_err(OE_DB, 0, "Not connected to datastore plugin");
goto done;
}
retval = _xa_api->xa_setopt_fn(xh, optname, value);
retval = xa->xa_setopt_fn(xh, optname, value);
done:
return retval;
}
@ -293,20 +331,22 @@ xmldb_get(clicon_handle h,
{
int retval = -1;
xmldb_handle xh;
struct xmldb_api *xa;
if (_xa_api == NULL){
if ((xa = clicon_xmldb_api_get(h)) == NULL){
clicon_err(OE_DB, 0, "No xmldb plugin");
goto done;
}
if (_xa_api->xa_get_fn == NULL){
if (xa->xa_get_fn == NULL){
clicon_err(OE_DB, 0, "No xmldb function");
goto done;
}
if ((xh = clicon_handle_xmldb_get(h)) == NULL){
if ((xh = clicon_xmldb_handle_get(h)) == NULL){
clicon_err(OE_DB, 0, "Not connected to datastore plugin");
goto done;
}
retval = _xa_api->xa_get_fn(xh, db, xpath, xtop, xvec, xlen);
clicon_log(LOG_WARNING, "%s: db:%s xpath:%s", __FUNCTION__, db, xpath);
retval = xa->xa_get_fn(xh, db, xpath, xtop, xvec, xlen);
done:
return retval;
}
@ -341,20 +381,30 @@ xmldb_put(clicon_handle h,
{
int retval = -1;
xmldb_handle xh;
struct xmldb_api *xa;
if (_xa_api == NULL){
if ((xa = clicon_xmldb_api_get(h)) == NULL){
clicon_err(OE_DB, 0, "No xmldb plugin");
goto done;
}
if (_xa_api->xa_put_fn == NULL){
if (xa->xa_put_fn == NULL){
clicon_err(OE_DB, 0, "No xmldb function");
goto done;
}
if ((xh = clicon_handle_xmldb_get(h)) == NULL){
if ((xh = clicon_xmldb_handle_get(h)) == NULL){
clicon_err(OE_DB, 0, "Not connected to datastore plugin");
goto done;
}
retval = _xa_api->xa_put_fn(xh, db, op, api_path, xt);
{
cbuf *cb = cbuf_new();
if (clicon_xml2cbuf(cb, xt, 0, 0) < 0)
goto done;
clicon_log(LOG_WARNING, "%s: db:%s op:%d api_path:%s xml:%s", __FUNCTION__,
db, op, api_path, cbuf_get(cb));
cbuf_free(cb);
}
retval = xa->xa_put_fn(xh, db, op, api_path, xt);
done:
return retval;
}
@ -373,20 +423,21 @@ xmldb_copy(clicon_handle h,
{
int retval = -1;
xmldb_handle xh;
struct xmldb_api *xa;
if (_xa_api == NULL){
if ((xa = clicon_xmldb_api_get(h)) == NULL){
clicon_err(OE_DB, 0, "No xmldb plugin");
goto done;
}
if (_xa_api->xa_copy_fn == NULL){
if (xa->xa_copy_fn == NULL){
clicon_err(OE_DB, 0, "No xmldb function");
goto done;
}
if ((xh = clicon_handle_xmldb_get(h)) == NULL){
if ((xh = clicon_xmldb_handle_get(h)) == NULL){
clicon_err(OE_DB, 0, "Not connected to datastore plugin");
goto done;
}
retval = _xa_api->xa_copy_fn(xh, from, to);
retval = xa->xa_copy_fn(xh, from, to);
done:
return retval;
}
@ -405,20 +456,21 @@ xmldb_lock(clicon_handle h,
{
int retval = -1;
xmldb_handle xh;
struct xmldb_api *xa;
if (_xa_api == NULL){
if ((xa = clicon_xmldb_api_get(h)) == NULL){
clicon_err(OE_DB, 0, "No xmldb plugin");
goto done;
}
if (_xa_api->xa_lock_fn == NULL){
if (xa->xa_lock_fn == NULL){
clicon_err(OE_DB, 0, "No xmldb function");
goto done;
}
if ((xh = clicon_handle_xmldb_get(h)) == NULL){
if ((xh = clicon_xmldb_handle_get(h)) == NULL){
clicon_err(OE_DB, 0, "Not connected to datastore plugin");
goto done;
}
retval = _xa_api->xa_lock_fn(xh, db, pid);
retval = xa->xa_lock_fn(xh, db, pid);
done:
return retval;
}
@ -438,20 +490,21 @@ xmldb_unlock(clicon_handle h,
{
int retval = -1;
xmldb_handle xh;
struct xmldb_api *xa;
if (_xa_api == NULL){
if ((xa = clicon_xmldb_api_get(h)) == NULL){
clicon_err(OE_DB, 0, "No xmldb plugin");
goto done;
}
if (_xa_api->xa_unlock_fn == NULL){
if (xa->xa_unlock_fn == NULL){
clicon_err(OE_DB, 0, "No xmldb function");
goto done;
}
if ((xh = clicon_handle_xmldb_get(h)) == NULL){
if ((xh = clicon_xmldb_handle_get(h)) == NULL){
clicon_err(OE_DB, 0, "Not connected to datastore plugin");
goto done;
}
retval = _xa_api->xa_unlock_fn(xh, db, pid);
retval = xa->xa_unlock_fn(xh, db, pid);
done:
return retval;
}
@ -468,20 +521,21 @@ xmldb_unlock_all(clicon_handle h,
{
int retval = -1;
xmldb_handle xh;
struct xmldb_api *xa;
if (_xa_api == NULL){
if ((xa = clicon_xmldb_api_get(h)) == NULL){
clicon_err(OE_DB, 0, "No xmldb plugin");
goto done;
}
if (_xa_api->xa_unlock_all_fn == NULL){
if (xa->xa_unlock_all_fn == NULL){
clicon_err(OE_DB, 0, "No xmldb function");
goto done;
}
if ((xh = clicon_handle_xmldb_get(h)) == NULL){
if ((xh = clicon_xmldb_handle_get(h)) == NULL){
clicon_err(OE_DB, 0, "Not connected to datastore plugin");
goto done;
}
retval =_xa_api->xa_unlock_all_fn(xh, pid);
retval =xa->xa_unlock_all_fn(xh, pid);
done:
return retval;
}
@ -499,20 +553,21 @@ xmldb_islocked(clicon_handle h,
{
int retval = -1;
xmldb_handle xh;
struct xmldb_api *xa;
if (_xa_api == NULL){
if ((xa = clicon_xmldb_api_get(h)) == NULL){
clicon_err(OE_DB, 0, "No xmldb plugin");
goto done;
}
if (_xa_api->xa_islocked_fn == NULL){
if (xa->xa_islocked_fn == NULL){
clicon_err(OE_DB, 0, "No xmldb function");
goto done;
}
if ((xh = clicon_handle_xmldb_get(h)) == NULL){
if ((xh = clicon_xmldb_handle_get(h)) == NULL){
clicon_err(OE_DB, 0, "Not connected to datastore plugin");
goto done;
}
retval =_xa_api->xa_islocked_fn(xh, db);
retval =xa->xa_islocked_fn(xh, db);
done:
return retval;
}
@ -530,20 +585,21 @@ xmldb_exists(clicon_handle h,
{
int retval = -1;
xmldb_handle xh;
struct xmldb_api *xa;
if (_xa_api == NULL){
if ((xa = clicon_xmldb_api_get(h)) == NULL){
clicon_err(OE_DB, 0, "No xmldb plugin");
goto done;
}
if (_xa_api->xa_exists_fn == NULL){
if (xa->xa_exists_fn == NULL){
clicon_err(OE_DB, 0, "No xmldb function");
goto done;
}
if ((xh = clicon_handle_xmldb_get(h)) == NULL){
if ((xh = clicon_xmldb_handle_get(h)) == NULL){
clicon_err(OE_DB, 0, "Not connected to datastore plugin");
goto done;
}
retval = _xa_api->xa_exists_fn(xh, db);
retval = xa->xa_exists_fn(xh, db);
done:
return retval;
}
@ -560,20 +616,21 @@ xmldb_delete(clicon_handle h,
{
int retval = -1;
xmldb_handle xh;
struct xmldb_api *xa;
if (_xa_api == NULL){
if ((xa = clicon_xmldb_api_get(h)) == NULL){
clicon_err(OE_DB, 0, "No xmldb plugin");
goto done;
}
if (_xa_api->xa_delete_fn == NULL){
if (xa->xa_delete_fn == NULL){
clicon_err(OE_DB, 0, "No xmldb function");
goto done;
}
if ((xh = clicon_handle_xmldb_get(h)) == NULL){
if ((xh = clicon_xmldb_handle_get(h)) == NULL){
clicon_err(OE_DB, 0, "Not connected to datastore plugin");
goto done;
}
retval = _xa_api->xa_delete_fn(xh, db);
retval = xa->xa_delete_fn(xh, db);
done:
return retval;
}
@ -590,20 +647,21 @@ xmldb_init(clicon_handle h,
{
int retval = -1;
xmldb_handle xh;
struct xmldb_api *xa;
if (_xa_api == NULL){
if ((xa = clicon_xmldb_api_get(h)) == NULL){
clicon_err(OE_DB, 0, "No xmldb plugin");
goto done;
}
if (_xa_api->xa_init_fn == NULL){
if (xa->xa_init_fn == NULL){
clicon_err(OE_DB, 0, "No xmldb function");
goto done;
}
if ((xh = clicon_handle_xmldb_get(h)) == NULL){
if ((xh = clicon_xmldb_handle_get(h)) == NULL){
clicon_err(OE_DB, 0, "Not connected to datastore plugin");
goto done;
}
retval = _xa_api->xa_init_fn(xh, db);
retval = xa->xa_init_fn(xh, db);
done:
return retval;
}