int ListMgr_Insert(lmgr_t *p_mgr, entry_id_t *p_id, attr_set_t *p_info,
int update_if_exists)
{
int rc;
char buff[4096];
/* retry the whole transaction when the error is retryable */
retry:
rc = lmgr_begin(p_mgr);
if (lmgr_delayed_retry(p_mgr, rc))
goto retry;
else if (rc)
return rc;
rc = listmgr_batch_insert_no_tx(p_mgr, &p_id, &p_info, 1, update_if_exists);
if (lmgr_delayed_retry(p_mgr, rc))
goto retry;
else if (rc)
{
lmgr_rollback(p_mgr);
DisplayLog(LVL_CRIT, LISTMGR_TAG,
"DB query failed in %s line %d: code=%d: %s",
__FUNCTION__, __LINE__, rc, db_errmsg(&p_mgr->conn, buff, 4096));
return rc;
}
rc = lmgr_commit(p_mgr);
if (lmgr_delayed_retry(p_mgr, rc))
goto retry;
/* success, count it */
if (!rc)
p_mgr->nbop[OPIDX_INSERT]++;
return rc;
}
/**
* Insert a batch of entries into the database.
* All entries must have the same attr mask.
*/
int ListMgr_BatchInsert(lmgr_t * p_mgr, entry_id_t ** p_ids,
attr_set_t ** p_attrs,
unsigned int count,
int update_if_exists)
{
int rc;
char buff[4096];
if (count == 0)
return DB_SUCCESS;
else if (p_ids == NULL || p_attrs == NULL)
RBH_BUG("NULL pointer argument");
/* read only fields in info mask? */
if (readonly_attr_set & p_attrs[0]->attr_mask)
{
DisplayLog(LVL_MAJOR, LISTMGR_TAG, "Error: trying to insert read only values: attr_mask=%#x",
readonly_attr_set & p_attrs[0]->attr_mask);
return DB_INVALID_ARG;
}
/* retry the whole transaction when the error is retryable */
retry:
/* We want insert operation set to be atomic */
rc = lmgr_begin(p_mgr);
if (lmgr_delayed_retry(p_mgr, rc))
goto retry;
else if (rc)
return rc;
rc = listmgr_batch_insert_no_tx(p_mgr, p_ids, p_attrs, count, update_if_exists);
if (lmgr_delayed_retry(p_mgr, rc))
goto retry;
else if (rc)
{
lmgr_rollback(p_mgr);
DisplayLog(LVL_CRIT, LISTMGR_TAG,
"DB query failed in %s line %d: code=%d: %s",
__FUNCTION__, __LINE__, rc, db_errmsg(&p_mgr->conn, buff, 4096));
return rc;
}
rc = lmgr_commit(p_mgr);
if (lmgr_delayed_retry(p_mgr, rc))
goto retry;
/* success, count it */
if (!rc)
{
if (update_if_exists)
p_mgr->nbop[OPIDX_UPDATE] += count;
else
p_mgr->nbop[OPIDX_INSERT] += count;
}
return rc;
}
int ListMgr_Exists(lmgr_t *p_mgr, const entry_id_t *p_id)
{
GString *req;
int rc;
result_handle_t result;
char *str_count = NULL;
DEF_PK(pk);
int retry_status;
/* retrieve primary key */
entry_id2pk(p_id, PTR_PK(pk));
/* verify it exists in main table */
req = g_string_new("SELECT id FROM " MAIN_TABLE " WHERE id=");
g_string_append_printf(req, DPK, pk);
retry:
/* execute the request (must return negative value on error) */
rc = -db_exec_sql(&p_mgr->conn, req->str, &result);
retry_status = lmgr_delayed_retry(p_mgr, -rc);
if (retry_status == 1)
goto retry;
else if (retry_status == 2) {
rc = -DB_RBH_SIG_SHUTDOWN;
goto free_str;
} else if (rc)
goto free_str;
rc = db_next_record(&p_mgr->conn, &result, &str_count, 1);
if (rc == 0)
rc = 1; /* return 1 if entry exists */
else if (rc != DB_END_OF_LIST)
{
retry_status = lmgr_delayed_retry(p_mgr, -rc);
if (retry_status == 1)
goto retry;
else if (retry_status == 2) {
rc = -DB_RBH_SIG_SHUTDOWN;
goto free_result;
}
}
else
rc = 0;
free_result:
db_result_free(&p_mgr->conn, &result);
free_str:
g_string_free(req, TRUE);
return rc;
}
/* Retrieve the FID from the database given the parent FID and the file name. */
int ListMgr_Get_FID_from_Path( lmgr_t * p_mgr, const entry_id_t * parent_fid,
const char *name, entry_id_t * fid)
{
result_handle_t result;
GString *req = NULL;
char escaped[RBH_NAME_MAX*2+1];
DEF_PK(pk);
int rc;
char *str_info[1];
int retry_status;
entry_id2pk(parent_fid, PTR_PK(pk));
db_escape_string(&p_mgr->conn, escaped, sizeof(escaped), name);
req = g_string_new("SELECT id FROM "DNAMES_TABLE" WHERE pkn=");
g_string_append_printf(req, HNAME_FMT, pk, escaped);
retry:
rc = db_exec_sql(&p_mgr->conn, req->str, &result);
retry_status = lmgr_delayed_retry(p_mgr, rc);
if (retry_status == 1)
goto retry;
else if (retry_status == 2) {
rc = DB_RBH_SIG_SHUTDOWN;
goto free_str;
} else if (rc)
goto free_str;
rc = db_next_record(&p_mgr->conn, &result, str_info, 1);
retry_status = lmgr_delayed_retry(p_mgr, rc);
if (retry_status == 1)
goto retry;
else if (retry_status == 2) {
rc = DB_RBH_SIG_SHUTDOWN;
goto free_res;
} else if (rc != DB_SUCCESS)
goto free_res;
rc = pk2entry_id(p_mgr, str_info[0], fid);
free_res:
db_result_free(&p_mgr->conn, &result);
free_str:
g_string_free(req, TRUE);
return rc;
}
/**
* Set variable value.
* @param value size must not exceed 1024.
*/
int ListMgr_SetVar(lmgr_t *p_mgr, const char *varname, const char *value)
{
int rc;
retry:
rc = lmgr_set_var(&p_mgr->conn, varname, value);
if (lmgr_delayed_retry(p_mgr, rc))
goto retry;
return rc;
}
int ListMgr_EntryCount(lmgr_t *p_mgr, uint64_t *count)
{
int rc;
do {
rc = lmgr_table_count(&p_mgr->conn, MAIN_TABLE, count);
} while (rc != DB_SUCCESS && lmgr_delayed_retry(p_mgr, rc));
return rc;
}
int ListMgr_Get( lmgr_t * p_mgr, const entry_id_t * p_id, attr_set_t * p_info )
{
int rc;
DEF_PK(pk);
entry_id2pk(p_id, PTR_PK(pk));
retry:
rc = listmgr_get_by_pk(p_mgr, pk, p_info);
if (lmgr_delayed_retry(p_mgr, rc))
goto retry;
return rc;
}
int ListMgr_Exists( lmgr_t * p_mgr, const entry_id_t * p_id )
{
char request[4096];
int rc;
result_handle_t result;
char *str_count = NULL;
DEF_PK( pk );
/* retrieve primary key */
entry_id2pk(p_id, PTR_PK(pk));
/* verify it exists in main table */
sprintf( request, "SELECT id FROM " MAIN_TABLE " WHERE id="DPK, pk );
retry:
/* execute the request */
rc = db_exec_sql(&p_mgr->conn, request, &result);
if (lmgr_delayed_retry(p_mgr, rc))
goto retry;
else if (rc)
return -rc;
rc = db_next_record( &p_mgr->conn, &result, &str_count, 1 );
if (rc == 0)
rc = 1;
else if (rc != DB_END_OF_LIST)
{
if (lmgr_delayed_retry(p_mgr, rc))
goto retry;
rc = -rc;
}
else
rc = 0;
db_result_free( &p_mgr->conn, &result );
return rc;
}
/* Retrieve the FID from the database given the parent FID and the file name. */
int ListMgr_Get_FID_from_Path( lmgr_t * p_mgr, const entry_id_t * parent_fid,
const char *name, entry_id_t * fid)
{
result_handle_t result;
char query[4096];
char escaped[RBH_NAME_MAX*2];
DEF_PK(pk);
int rc;
char *str_info[1];
entry_id2pk(parent_fid, PTR_PK(pk));
db_escape_string(&p_mgr->conn, escaped, RBH_NAME_MAX*2, name);
sprintf(query, "SELECT id FROM "DNAMES_TABLE" WHERE pkn="HNAME_FMT,
pk, escaped);
retry:
rc = db_exec_sql(&p_mgr->conn, query, &result);
if (lmgr_delayed_retry(p_mgr, rc))
goto retry;
else if (rc)
return rc;
rc = db_next_record( &p_mgr->conn, &result, str_info, 1 );
if (lmgr_delayed_retry(p_mgr, rc))
goto retry;
else if (rc != DB_SUCCESS)
goto free_res;
rc = pk2entry_id(p_mgr, str_info[0], fid);
free_res:
db_result_free( &p_mgr->conn, &result );
return rc;
}
int ListMgr_Get( lmgr_t * p_mgr, const entry_id_t * p_id, attr_set_t * p_info )
{
int rc;
DEF_PK(pk);
int retry_status;
entry_id2pk(p_id, PTR_PK(pk));
retry:
rc = listmgr_get_by_pk(p_mgr, pk, p_info);
retry_status = lmgr_delayed_retry(p_mgr, rc);
if (retry_status == 1)
goto retry;
else if (retry_status == 2)
rc = DB_RBH_SIG_SHUTDOWN;
return rc;
}
int ListMgr_SetStripe(lmgr_t *p_mgr, const entry_id_t *p_id,
stripe_info_t *p_stripe_info,
stripe_items_t *p_stripe_items)
{
DEF_PK(pk);
int rc;
#ifdef HAVE_LLAPI_FSWAP_LAYOUTS
int validator = (p_stripe_info ? p_stripe_info->validator : VALID_NOSTRIPE);
#else
int validator = VALID(p_id);
#endif
entry_id2pk(p_id, PTR_PK(pk));
retry:
rc = insert_stripe_info(p_mgr, pk, validator, p_stripe_info, p_stripe_items,
true);
if (lmgr_delayed_retry(p_mgr, rc))
goto retry;
return rc;
}
int ListMgr_EntryCount(lmgr_t * p_mgr, uint64_t *count)
{
int rc;
result_handle_t result;
char *str_count = NULL;
/* execute the request */
retry:
rc = db_exec_sql( &p_mgr->conn, "SELECT COUNT(*) FROM " MAIN_TABLE, &result );
if (lmgr_delayed_retry(p_mgr, rc))
goto retry;
else if (rc)
return rc;
rc = db_next_record( &p_mgr->conn, &result, &str_count, 1 );
if (rc)
return rc;
if ( sscanf( str_count, "%"SCNu64, count ) != 1 )
rc = DB_REQUEST_FAILED;
db_result_free( &p_mgr->conn, &result );
return rc;
}
/**
* Get the list of children of a given parent (or list of parents).
* \param parent_list [in] list of parents to get the child of
* \param parent_count [in] number of ids in parent list
* \param attr_mask [in] required attributes for children
* \param child_id_list [out] ptr to array of child ids
* \param child_attr_list [out] ptr to array of child attrs
* \param child_count [out] number of returned children
*/
int ListMgr_GetChild( lmgr_t * p_mgr, const lmgr_filter_t * p_filter,
const wagon_t * parent_list, unsigned int parent_count,
int attr_mask,
wagon_t ** child_id_list, attr_set_t ** child_attr_list,
unsigned int * child_count)
{
result_handle_t result;
char *curr;
int filter_main = 0;
int filter_annex = 0;
int main_attrs = 0;
int dnames_attrs = 0;
int annex_attrs = 0;
char query[4096];
char fieldlist_main[1024] = "";
char fieldlist_dnames[1024] = "";
char fieldlist_annex[1024] = "";
char filter_str_main[1024] = "";
char filter_str_annex[1024] = "";
char tmp[2048];
char *path = NULL;
int path_len;
char * pc;
int rc, i;
/* TODO: querying children from several parent cannot work, since
* we need to get the paths of the children. Or we could do a
* lookup into parent_list to find the right one. In the meantime,
* try not to mess up the code. */
if (parent_count != 1)
RBH_BUG("cannot get children for several parent simultaneously");
/* always request for name to build fullpath in wagon */
attr_mask |= ATTR_MASK_name;
/* request is always on the MAIN table (which contains [parent_id, id] relationship */
/* /!\ possible cases:
* - simplest: the fields of the filter and the attributes to be retrieved are in the MAIN table
* - harder: the fields of the filter and attributes are in a different table
*/
/* 1) location of filters */
if ( p_filter )
{
char dummy_str[1024];
unsigned int dummy_uint;
if (dir_filter(p_mgr, dummy_str, p_filter, &dummy_uint) != FILTERDIR_NONE)
{
DisplayLog( LVL_MAJOR, LISTMGR_TAG, "Directory filter not supported in %s()", __func__ );
return DB_NOT_SUPPORTED;
}
else if (func_filter(p_mgr, dummy_str, p_filter, T_MAIN, FALSE, FALSE))
{
DisplayLog( LVL_MAJOR, LISTMGR_TAG, "Function filter not supported in %s()", __func__ );
return DB_NOT_SUPPORTED;
}
/* There is always a filter on T_DNAMES, which is the parent condition.
* Look for optional filters:
*/
filter_main = filter2str( p_mgr, filter_str_main, p_filter, T_MAIN,
FALSE, TRUE );
if ( annex_table )
filter_annex = filter2str( p_mgr, filter_str_annex, p_filter,
T_ANNEX, FALSE, TRUE );
else
filter_annex = 0;
/* @TODO to be implemented */
#if 0
filter_stripe_info =
filter2str( p_mgr, filter_str_stripe_info, p_filter, T_STRIPE_INFO,
( filter_main > 0 ) || ( filter_annex > 0 ), TRUE );
filter_stripe_items =
filter2str( p_mgr, filter_str_stripe_items, p_filter, T_STRIPE_ITEMS,
( filter_main > 0 ) || ( filter_annex > 0 )
|| ( filter_stripe_info > 0 ), TRUE );
#endif
}
/* 2) location of requested attributes */
if (attr_mask)
{
/* retrieve source info for generated fields */
add_source_fields_for_gen( &attr_mask );
main_attrs = attrmask2fieldlist( fieldlist_main, attr_mask, T_MAIN,
/* leading comma */ TRUE, /* for update */ FALSE,
/* prefix */ MAIN_TABLE".", /* postfix */ "" );
dnames_attrs += attrmask2fieldlist( fieldlist_dnames, attr_mask, T_DNAMES,
/* leading comma */ TRUE, /* for update */ FALSE,
/* prefix */ DNAMES_TABLE".", /* postfix */ "" );
if ( annex_table )
annex_attrs = attrmask2fieldlist( fieldlist_annex, attr_mask, T_ANNEX,
/* leading comma */ TRUE, /* for update */ FALSE,
/* prefix */ ANNEX_TABLE".", /* postfix */ "" );
else
annex_attrs = 0;
}
else
{
/* no returned attrs */
if (child_attr_list)
*child_attr_list = NULL;
}
pc = parent_cond(p_mgr, tmp, sizeof(tmp), parent_list, parent_count, DNAMES_TABLE".");
if (!pc)
return DB_BUFFER_TOO_SMALL;
curr = query;
/* SELECT clause */
/* id + dname fields */
curr += sprintf(curr, "SELECT "DNAMES_TABLE".id%s", fieldlist_dnames);
/* main attrs */
if (main_attrs)
curr += sprintf(curr, "%s", fieldlist_main);
/* annex attrs */
if (annex_attrs)
curr += sprintf(curr, "%s", fieldlist_annex);
/* FROM clause */
curr += sprintf(curr, " FROM "DNAMES_TABLE);
if (main_attrs || filter_main)
curr += sprintf(curr, " LEFT JOIN "MAIN_TABLE
" ON "DNAMES_TABLE".id="MAIN_TABLE".id");
if (annex_attrs || filter_annex)
curr += sprintf(curr, " LEFT JOIN "ANNEX_TABLE
" ON "DNAMES_TABLE".id="ANNEX_TABLE".id");
/* WHERE clause */
curr += sprintf(curr, " WHERE %s", pc);
if (filter_main)
curr += sprintf(curr, " AND %s", filter_str_main);
if (filter_annex)
curr += sprintf(curr, " AND %s", filter_str_annex);
retry:
rc = db_exec_sql(&p_mgr->conn, query, &result);
if (lmgr_delayed_retry(p_mgr, rc))
goto retry;
else if (rc)
return rc;
/* copy result to output structures */
*child_count = db_result_nb_records(&p_mgr->conn, &result);
/* allocate entry_id array */
*child_id_list = MemCalloc(*child_count, sizeof(wagon_t));
if (*child_id_list == NULL)
return DB_NO_MEMORY;
if (child_attr_list)
{
*child_attr_list = MemCalloc(*child_count, sizeof(attr_set_t));
if (*child_attr_list == NULL)
{
rc = DB_NO_MEMORY;
goto array_free;
}
}
/* Allocate a string long enough to contain the parent path and a
* child name. */
path_len = strlen(parent_list[0].fullname) + RBH_NAME_MAX + 2;
path = malloc(path_len);
if (!path) {
DisplayLog( LVL_MAJOR, LISTMGR_TAG, "Can't alloc enough memory (%d bytes)",
path_len );
rc = DB_NO_MEMORY;
goto array_free;
}
for (i = 0; i < *child_count; i++)
{
char *res[128]; /* 128 fields per row is large enough */
rc = db_next_record(&p_mgr->conn, &result, res, 128);
if ( rc )
goto array_free;
/* copy id to array */
pk2entry_id(p_mgr, res[0], &((*child_id_list)[i].id));
/* copy attributes to array */
if (child_attr_list)
{
(*child_attr_list)[i].attr_mask = attr_mask;
/* first id, then dnames attrs, then main attrs, then annex attrs */
if (dnames_attrs)
{
/* shift of 1 for id */
rc = result2attrset( T_DNAMES, res + 1, dnames_attrs, &((*child_attr_list)[i]) );
if ( rc )
goto array_free;
}
if (main_attrs)
{
/* first id, then main attrs, then annex attrs */
/* shift of 1 for id */
rc = result2attrset( T_MAIN, res + dnames_attrs + 1, main_attrs, &((*child_attr_list)[i]) );
if ( rc )
goto array_free;
}
if (annex_attrs)
{
/* shift of main_attrs count */
rc = result2attrset( T_ANNEX, res + dnames_attrs + main_attrs + 1, annex_attrs,
&((*child_attr_list)[i]) );
if ( rc )
goto array_free;
}
#ifdef _LUSTRE
if (stripe_fields(attr_mask))
{
if (get_stripe_info( p_mgr, res[0], &ATTR(&(*child_attr_list)[i], stripe_info),
&ATTR(&(*child_attr_list)[i], stripe_items) ))
{
ATTR_MASK_UNSET(&(*child_attr_list)[i], stripe_info);
ATTR_MASK_UNSET(&(*child_attr_list)[i], stripe_items);
}
}
#endif
generate_fields(&((*child_attr_list)[i]));
/* Note: path is properly sized already to not overflow. */
sprintf(path, "%s/%s", parent_list[0].fullname,
(*child_attr_list)[i].attr_values.name);
(*child_id_list)[i].fullname = strdup(path);
}
}
if (path)
free(path);
db_result_free( &p_mgr->conn, &result );
return 0;
array_free:
if (path)
free(path);
if (child_attr_list && *child_attr_list)
{
MemFree(*child_attr_list);
*child_attr_list = NULL;
}
MemFree(*child_id_list);
*child_id_list = NULL;
return rc;
}
/**
* Get the list of children of a given parent (or list of parents).
* \param parent_list [in] list of parents to get the child of
* \param parent_count [in] number of ids in parent list
* \param attr_mask [in] required attributes for children
* \param child_id_list [out] ptr to array of child ids
* \param child_attr_list [out] ptr to array of child attrs
* \param child_count [out] number of returned children
*/
int ListMgr_GetChild(lmgr_t *p_mgr, const lmgr_filter_t *p_filter,
const wagon_t *parent_list, unsigned int parent_count,
attr_mask_t attr_mask,
wagon_t **child_id_list, attr_set_t **child_attr_list,
unsigned int *child_count)
{
result_handle_t result;
char *path = NULL;
int path_len;
int rc, i;
GString *req = NULL;
GString *fields = NULL;
GString *from = NULL;
GString *where = NULL;
struct field_count field_cnt = {0};
struct field_count filter_cnt = {0};
table_enum query_tab = T_DNAMES;
bool distinct = false;
int retry_status;
/* XXX: querying children from several parent cannot work, since
* we need to get the paths of the children. Or we could do a
* lookup into parent_list to find the right one. In the meantime,
* try not to mess up the code. */
if (unlikely(parent_count != 1))
RBH_BUG("cannot get children for several parent simultaneously");
/* always request for name to build fullpath in wagon */
attr_mask_set_index(&attr_mask, ATTR_INDEX_name);
fields = g_string_new(NULL);
/* append fields for all tables */
if (!attr_mask_is_null(attr_mask))
{
/* retrieve source info for generated fields */
add_source_fields_for_gen(&attr_mask.std);
field_cnt.nb_names = attrmask2fieldlist(fields, attr_mask, T_DNAMES,
DNAMES_TABLE".", "",
AOF_LEADING_SEP);
field_cnt.nb_main = attrmask2fieldlist(fields, attr_mask, T_MAIN,
MAIN_TABLE".", "",
AOF_LEADING_SEP);
field_cnt.nb_annex = attrmask2fieldlist(fields, attr_mask, T_ANNEX,
ANNEX_TABLE".", "",
AOF_LEADING_SEP);
}
else
{
/* no returned attrs */
if (child_attr_list != NULL)
*child_attr_list = NULL;
}
where = g_string_new(NULL);
/* starts with condition on parent */
rc = append_parent_cond(p_mgr, where, parent_list, parent_count, DNAMES_TABLE".");
if (rc != DB_SUCCESS)
goto free_str;
/* check filters on other tables */
if (!no_filter(p_filter))
{
if (unlikely(dir_filter(p_mgr, NULL, p_filter, NULL, NULL) != FILTERDIR_NONE))
{
DisplayLog(LVL_MAJOR, LISTMGR_TAG, "Directory filter not supported in %s()", __func__);
rc = DB_NOT_SUPPORTED;
goto free_str;
}
else if (unlikely(func_filter(p_mgr, NULL, p_filter, T_MAIN, 0)))
{
DisplayLog(LVL_MAJOR, LISTMGR_TAG, "Function filter not supported in %s()", __func__);
rc = DB_NOT_SUPPORTED;
goto free_str;
}
/* There is always a filter on T_DNAMES, which is the parent condition.
* Look for optional filters.
*/
filter_where(p_mgr, p_filter, &filter_cnt, where,
AOF_LEADING_SEP | AOF_SKIP_NAME);
/** @FIXME process other filters on NAMES */
}
from = g_string_new(DNAMES_TABLE);
/* add filter_count + field_count to build the FROM clause.
* Preserve field count which is needed to interpret the result.
*/
filter_cnt.nb_main += field_cnt.nb_main;
filter_cnt.nb_annex += field_cnt.nb_annex;
filter_cnt.nb_names += field_cnt.nb_names;
/* query tab is DNAMES, skip_name=true, is_first_tab=T_DNAMES */
filter_from(p_mgr, &filter_cnt, from, &query_tab, &distinct,
AOF_LEADING_SEP | AOF_SKIP_NAME);
/* request is always on the DNAMES table (which contains [parent_id, id] relationship */
if (distinct)
req = g_string_new("SELECT DISTINCT("DNAMES_TABLE".id) as id");
else
req = g_string_new("SELECT "DNAMES_TABLE".id as id");
/* build the whole request */
g_string_append_printf(req, "%s FROM %s WHERE %s", fields->str, from->str, where->str);
retry:
rc = db_exec_sql(&p_mgr->conn, req->str, &result);
retry_status = lmgr_delayed_retry(p_mgr, rc);
if (retry_status == 1)
goto retry;
else if (retry_status == 2) {
rc = DB_RBH_SIG_SHUTDOWN;
goto free_str;
} else if (rc)
goto free_str;
/* copy result to output structures */
*child_count = db_result_nb_records(&p_mgr->conn, &result);
/* allocate entry_id array */
*child_id_list = MemCalloc(*child_count, sizeof(wagon_t));
if (*child_id_list == NULL)
{
rc = DB_NO_MEMORY;
goto free_str;
}
if (child_attr_list)
{
*child_attr_list = MemCalloc(*child_count, sizeof(attr_set_t));
if (*child_attr_list == NULL)
{
rc = DB_NO_MEMORY;
goto array_free;
}
}
/* Allocate a string long enough to contain the parent path and a
* child name. */
path_len = strlen(parent_list[0].fullname) + RBH_NAME_MAX + 2;
path = malloc(path_len);
if (!path) {
DisplayLog(LVL_MAJOR, LISTMGR_TAG, "Can't alloc enough memory (%d bytes)",
path_len);
rc = DB_NO_MEMORY;
goto array_free;
}
for (i = 0; i < *child_count; i++)
{
char *res[128]; /* 128 fields per record is large enough */
rc = db_next_record(&p_mgr->conn, &result, res, sizeof(res)/sizeof(*res));
if (rc)
goto array_free;
/* copy id to array */
pk2entry_id(p_mgr, res[0], &((*child_id_list)[i].id));
/* copy attributes to array */
if (child_attr_list)
{
unsigned int shift = 1; /* first was NAMES.id */
(*child_attr_list)[i].attr_mask = attr_mask;
/* first id, then dnames attrs, then main attrs, then annex attrs */
if (field_cnt.nb_names > 0)
{
/* shift of 1 for id */
rc = result2attrset(T_DNAMES, res + shift, field_cnt.nb_names, &((*child_attr_list)[i]));
if (rc)
goto array_free;
shift += field_cnt.nb_names;
}
if (field_cnt.nb_main > 0)
{
/* first id, then main attrs, then annex attrs */
/* shift of 1 for id */
rc = result2attrset(T_MAIN, res + shift, field_cnt.nb_main, &((*child_attr_list)[i]));
if (rc)
goto array_free;
shift += field_cnt.nb_main;
}
if (field_cnt.nb_annex > 0)
{
/* shift of main_attrs count */
rc = result2attrset(T_ANNEX, res + shift, field_cnt.nb_annex,
&((*child_attr_list)[i]));
if (rc)
goto array_free;
shift += field_cnt.nb_annex;
}
#ifdef _LUSTRE
if (stripe_fields(attr_mask))
{
if (get_stripe_info(p_mgr, res[0], &ATTR(&(*child_attr_list)[i], stripe_info),
&ATTR(&(*child_attr_list)[i], stripe_items)))
{
ATTR_MASK_UNSET(&(*child_attr_list)[i], stripe_info);
ATTR_MASK_UNSET(&(*child_attr_list)[i], stripe_items);
}
}
#endif
generate_fields(&((*child_attr_list)[i]));
/* Note: path is properly sized already to not overflow. */
snprintf(path, path_len, "%s/%s", parent_list[0].fullname,
(*child_attr_list)[i].attr_values.name);
(*child_id_list)[i].fullname = strdup(path);
}
}
if (path)
free(path);
db_result_free(&p_mgr->conn, &result);
g_string_free(req, TRUE);
g_string_free(fields, TRUE);
g_string_free(from, TRUE);
g_string_free(where, TRUE);
return 0;
array_free:
if (path)
free(path);
if (child_attr_list && *child_attr_list)
{
MemFree(*child_attr_list);
*child_attr_list = NULL;
}
MemFree(*child_id_list);
*child_id_list = NULL;
free_str:
g_string_free(req, TRUE);
g_string_free(fields, TRUE);
g_string_free(from, TRUE);
g_string_free(where, TRUE);
return rc;
}
/**
* Builds a report from database.
*/
struct lmgr_report_t *ListMgr_Report( lmgr_t * p_mgr,
const report_field_descr_t * report_desc_array,
unsigned int report_descr_count,
const profile_field_descr_t * profile_descr,
const lmgr_filter_t * p_filter,
const lmgr_iter_opt_t * p_opt )
{
unsigned int i;
/* A query consists of 5 parts:
* - List of fields to be selected
* - FROM clause with joins
* - WHERE clause (filters)
* - GROUP BY clause
* - ORBER BY clause
*/
char fields[1024] = "";
char from[512] = "";
char where[2048] = "";
char having[2048] = "";
char group_by[512] = "";
char order_by[512] = "";
char query[4096] = "";
/* filters on NAMES or STRIPE_ITEMS
* must be managed differently, as they
* can create duplicates (non uniq id) */
char name_filter_str[1024] = "";
char stripe_filter_str[1024] = "";
char *curr_field = fields;
char *curr_group_by = group_by;
char *curr_sort = order_by;
char *curr_query = query;
char *curr_where = where;
char *curr_having = having;
char attrname[128];
char attrstring[1024];
lmgr_report_t *p_report;
int rc;
table_enum query_tab;
/* supported report fields: ENTRIES, ANNEX_INFO or ACCT */
int main_table_flag = FALSE;
int annex_table_flag = FALSE;
int acct_table_flag = FALSE;
int filter_main = 0;
int filter_annex = 0;
int filter_stripe_info = 0;
int filter_stripe_items = 0;
int filter_names = 0;
int filter_acct = 0;
int full_acct = TRUE;
lmgr_iter_opt_t opt = {0};
unsigned int profile_len = 0;
unsigned int ratio = 0;
/* check profile argument and increase output array if needed */
if (profile_descr != NULL)
{
if (profile_descr->attr_index != ATTR_INDEX_size)
{
DisplayLog(LVL_CRIT, LISTMGR_TAG, "Profile on attribute #%u is not supported",
profile_descr->attr_index);
return NULL;
}
profile_len = SZ_PROFIL_COUNT;
if (profile_descr->range_ratio_len > 0)
ratio = 1;
}
/* allocate a new report structure */
p_report = ( lmgr_report_t * ) MemAlloc( sizeof( lmgr_report_t ) );
if ( !p_report )
return NULL;
p_report->p_mgr = p_mgr;
p_report->result_type_array =
( db_type_t * ) MemCalloc( report_descr_count + profile_len + ratio,
sizeof( db_type_t ) );
if ( !p_report->result_type_array )
goto free_report;
p_report->result_count = report_descr_count + profile_len + ratio;
p_report->profile_count = profile_len;
p_report->ratio_count = ratio;
if (profile_descr != NULL)
p_report->profile_attr = ATTR_INDEX_size;
/* initialy, no char * tab allocated */
p_report->str_tab = NULL;
if (p_opt)
opt = *p_opt;
for ( i = 0; i < report_descr_count; i++ )
{
if ( ( report_desc_array[i].report_type != REPORT_COUNT ) &&
#ifdef ATTR_INDEX_dircount
report_desc_array[i].attr_index != ATTR_INDEX_dircount &&
#endif
!is_acct_field( report_desc_array[i].attr_index ) &&
!is_acct_pk( report_desc_array[i].attr_index ) )
full_acct = FALSE;
}
if ( p_filter )
{
if ( p_filter->filter_type == FILTER_SIMPLE )
{
for ( i = 0; i < p_filter->filter_simple.filter_count; i++ )
{
if ( !is_acct_pk( p_filter->filter_simple.filter_index[i] ) &&
!is_acct_field( p_filter->filter_simple.filter_index[i] ) )
full_acct = FALSE;
}
}
}
if ( full_acct && !opt.force_no_acct )
{
listmgr_optimizedstat( p_report, p_mgr, report_descr_count, report_desc_array,
profile_descr,
fields, &curr_field, group_by, &curr_group_by, order_by, &curr_sort,
having, &curr_having, where, &curr_where);
acct_table_flag = TRUE;
}
else /* not only ACCT table */
{
/* sorting by ratio first */
if (profile_descr && profile_descr->range_ratio_len > 0)
{
if ( profile_descr->attr_index == ATTR_INDEX_size )
{
if (profile_descr->range_ratio_sort == SORT_ASC)
add_string( order_by, curr_sort, "sizeratio ASC");
else
add_string( order_by, curr_sort, "sizeratio DESC");
}
}
for ( i = 0; i < report_descr_count; i++ )
{
/* no field for count or distinct count */
if ( report_desc_array[i].report_type != REPORT_COUNT &&
report_desc_array[i].report_type != REPORT_COUNT_DISTINCT )
{
/* in what table is this field ? */
if ( is_main_field( report_desc_array[i].attr_index ) )
main_table_flag = TRUE;
else if ( is_annex_field( report_desc_array[i].attr_index ) )
annex_table_flag = TRUE;
else
{
/* Not supported yet */
DisplayLog( LVL_CRIT, LISTMGR_TAG,
"Error: report on attribute #%u is not supported (report item #%u).",
report_desc_array[i].attr_index, i );
goto free_field_tab;
}
}
sprintf( attrname, "attr%u", i );
/* what kind of stat on this field ? */
switch ( report_desc_array[i].report_type )
{
case REPORT_MIN:
sprintf( attrstring, "MIN( %s ) as %s",
field_str( report_desc_array[i].attr_index ), attrname );
add_string( fields, curr_field, attrstring );
p_report->result_type_array[i] = field_type( report_desc_array[i].attr_index );
break;
case REPORT_MAX:
sprintf( attrstring, "MAX( %s ) as %s",
field_str( report_desc_array[i].attr_index ), attrname );
add_string( fields, curr_field, attrstring );
p_report->result_type_array[i] = field_type( report_desc_array[i].attr_index );
break;
case REPORT_AVG:
sprintf( attrstring, "ROUND(AVG( %s )) as %s",
field_str( report_desc_array[i].attr_index ), attrname );
add_string( fields, curr_field, attrstring );
p_report->result_type_array[i] = field_type( report_desc_array[i].attr_index );
break;
case REPORT_SUM:
sprintf( attrstring, "SUM( %s ) as %s",
field_str( report_desc_array[i].attr_index ), attrname );
add_string( fields, curr_field, attrstring );
p_report->result_type_array[i] = field_type( report_desc_array[i].attr_index );
break;
case REPORT_COUNT:
sprintf( attrstring, "COUNT(*) as %s", attrname );
add_string( fields, curr_field, attrstring );
p_report->result_type_array[i] = DB_BIGUINT;
break;
case REPORT_COUNT_DISTINCT:
sprintf( attrstring, "COUNT(DISTINCT(%s)) as %s",
field_str( report_desc_array[i].attr_index ), attrname );
add_string( fields, curr_field, attrstring );
p_report->result_type_array[i] = DB_BIGUINT;
break;
case REPORT_GROUP_BY:
sprintf( attrstring, "%s as %s", field_str( report_desc_array[i].attr_index ),
attrname );
add_string( fields, curr_field, attrstring );
add_string( group_by, curr_group_by, attrname );
p_report->result_type_array[i] = field_type( report_desc_array[i].attr_index );
break;
}
/* is this field sorted ? */
if ( report_desc_array[i].sort_flag == SORT_ASC )
{
sprintf( attrstring, "%s ASC", attrname );
add_string( order_by, curr_sort, attrstring );
}
else if ( report_desc_array[i].sort_flag == SORT_DESC )
{
sprintf( attrstring, "%s DESC", attrname );
add_string( order_by, curr_sort, attrstring );
}
/* is this field filtered ? */
listmgr_fieldfilter( p_report, p_mgr, report_desc_array, attrstring, attrname,
having, &curr_having, where, &curr_where, i );
}
/* generate size profile */
if (profile_descr != NULL)
{
if (profile_descr->attr_index == ATTR_INDEX_size)
{
add_string( fields, curr_field, "SUM(size=0)" );
for (i=1; i < SZ_PROFIL_COUNT-1; i++)
curr_field += sprintf(curr_field, ",SUM("ACCT_SZ_VAL("size")"=%u)", i-1);
curr_field += sprintf(curr_field, ",SUM("ACCT_SZ_VAL("size")">=%u)", i-1);
for (i=0; i<SZ_PROFIL_COUNT; i++)
p_report->result_type_array[i+report_descr_count] = DB_BIGUINT;
if (profile_descr->range_ratio_len > 0)
{
/* add ratio field and sort it */
attrstring[0] = '\0';
char *curr_attr = attrstring;
curr_attr += sprintf(curr_attr, "SUM(size>=%Lu",
SZ_MIN_BY_INDEX(profile_descr->range_ratio_start));
/* is the last range = 1T->inf ? */
if (profile_descr->range_ratio_start + profile_descr->range_ratio_len >= SZ_PROFIL_COUNT)
curr_attr += sprintf(curr_attr, ")");
else
curr_attr += sprintf(curr_attr, " and size<%Lu)",
SZ_MIN_BY_INDEX(profile_descr->range_ratio_start+profile_descr->range_ratio_len));
curr_attr += sprintf(curr_attr, "/COUNT(*) as sizeratio");
add_string( fields, curr_field, attrstring );
}
}
}
}
/* filter */
if ( p_filter )
{
if ( ( full_acct && !opt.force_no_acct ) )
{
filter_acct = filter2str( p_mgr, curr_where, p_filter, T_ACCT,
( where != curr_where ), TRUE );
curr_where += strlen( curr_where );
if ( filter_acct )
acct_table_flag =TRUE;
}
else
{
/* filter on main table? */
filter_main = filter2str( p_mgr, curr_where, p_filter, T_MAIN,
( where != curr_where ), TRUE );
curr_where += strlen( curr_where );
if ( filter_main )
main_table_flag = TRUE;
/* filter on annex table? */
if ( annex_table )
{
filter_annex = filter2str( p_mgr, curr_where, p_filter, T_ANNEX,
(where != curr_where), TRUE );
curr_where += strlen( curr_where );
if ( filter_annex )
annex_table_flag = TRUE;
}
filter_stripe_info =
filter2str( p_mgr, curr_where, p_filter, T_STRIPE_INFO,
(where != curr_where), TRUE );
curr_where += strlen( curr_where );
/* filter on names table is particular as this may duplicate
* entries when computing the report (multiple hardlinks) */
filter_names = filter2str(p_mgr, name_filter_str, p_filter, T_DNAMES,
FALSE, FALSE );
/* filter on stripe items table is particular as this may duplicate
* entries when computing the report (multiple stripes) */
filter_stripe_items = filter2str(p_mgr, stripe_filter_str, p_filter,
T_STRIPE_ITEMS, FALSE, FALSE);
}
}
/* FROM clause */
if ( acct_table_flag )
{
strcpy( from, ACCT_TABLE );
query_tab = T_ACCT;
}
else
{
const char * first_table = NULL;
char * curr_from = from;
if ( main_table_flag ) {
strcpy(from, MAIN_TABLE);
curr_from = from + strlen(from);
first_table = MAIN_TABLE;
query_tab = T_MAIN;
}
if ( annex_table_flag )
{
if (first_table)
curr_from += sprintf(curr_from, " LEFT JOIN "ANNEX_TABLE" ON %s.id="ANNEX_TABLE".id",
first_table);
else
{
strcpy(from, ANNEX_TABLE);
curr_from = from + strlen(from);
first_table = ANNEX_TABLE;
query_tab = T_ANNEX;
}
}
if ( filter_stripe_info )
{
if (first_table)
curr_from += sprintf(curr_from, " INNER JOIN "STRIPE_INFO_TABLE" ON %s.id="STRIPE_INFO_TABLE".id",
first_table);
else
{
strcpy(from, STRIPE_INFO_TABLE);
curr_from = from + strlen(from);
first_table = STRIPE_INFO_TABLE;
query_tab = T_STRIPE_INFO;
}
}
if (filter_names)
{
if (first_table)
curr_from += sprintf(curr_from," INNER JOIN (SELECT DISTINCT(id)"
" FROM "DNAMES_TABLE" WHERE %s) N"
" ON %s.id=N.id", name_filter_str,
first_table);
else
{
DisplayLog(LVL_CRIT, LISTMGR_TAG, "Unexpected case: "DNAMES_TABLE
" table can't be the query table in %s()", __func__);
goto free_field_tab;
}
}
if (filter_stripe_items)
{
if (first_table)
curr_from += sprintf(curr_from, " INNER JOIN (SELECT DISTINCT(id)"
" FROM "STRIPE_ITEMS_TABLE" WHERE %s) SI"
" ON %s.id=SI.id", stripe_filter_str,
first_table);
else
{
strcpy(from, STRIPE_ITEMS_TABLE);
curr_from = from + strlen(from);
strcpy(curr_where, stripe_filter_str);
curr_where += strlen(curr_where);
first_table = STRIPE_ITEMS_TABLE;
query_tab = T_STRIPE_ITEMS;
/* XXX the caller is supposed to select DISTINCT(id) in this case */
}
}
}
/* Build the request */
curr_query += sprintf( query, "SELECT %s FROM %s", fields, from );
if ( where[0] )
{
curr_query += sprintf( curr_query, " WHERE %s", where );
}
if ( group_by[0] )
{
curr_query += sprintf( curr_query, " GROUP BY %s", group_by );
}
if ( having[0] )
{
curr_query += sprintf( curr_query, " HAVING %s", having );
}
if ( order_by[0] )
{
curr_query += sprintf( curr_query, " ORDER BY %s", order_by );
}
/* iterator opt */
if ( opt.list_count_max > 0 )
{
curr_query += sprintf( curr_query, " LIMIT %u", opt.list_count_max );
}
#ifdef _DEBUG_DB
printf( "Report is specified by: %s\n", query );
#endif
retry:
/* execute request (expect that ACCT table does not exists) */
if (acct_table_flag)
rc = db_exec_sql_quiet( &p_mgr->conn, query, &p_report->select_result );
else
rc = db_exec_sql( &p_mgr->conn, query, &p_report->select_result );
if (lmgr_delayed_retry(p_mgr, rc))
goto retry;
/* if the ACCT table does exist, switch to standard mode */
if ( acct_table_flag && (rc == DB_NOT_EXISTS))
{
lmgr_iter_opt_t new_opt;
if (p_opt != NULL)
new_opt = *p_opt;
else
new_opt.list_count_max = 0;
new_opt.force_no_acct = TRUE;
DisplayLog( LVL_EVENT, LISTMGR_TAG, "No accounting info: switching to standard query mode" );
return ListMgr_Report( p_mgr, report_desc_array, report_descr_count,
profile_descr,
p_filter, &new_opt );
}
if ( rc )
goto free_field_tab;
else
return p_report;
/* error handlers */
free_field_tab:
MemFree( p_report->result_type_array );
free_report:
MemFree( p_report );
return NULL;
} /* ListMgr_Report */
/**
* Builds a report from database.
*/
struct lmgr_report_t *ListMgr_Report(lmgr_t *p_mgr,
const report_field_descr_t *
report_desc_array,
unsigned int report_descr_count,
const profile_field_descr_t *
profile_descr,
const lmgr_filter_t *p_filter,
const lmgr_iter_opt_t *p_opt)
{
unsigned int i;
char attrname[128];
lmgr_report_t *p_report;
int rc;
table_enum query_tab;
/* supported report fields: ENTRIES, ANNEX_INFO or ACCT */
bool use_acct_table = false;
lmgr_iter_opt_t opt = { 0 };
unsigned int profile_len = 0;
unsigned int ratio = 0;
struct field_count fcnt = { 0 };
GString *req = NULL;
GString *fields = NULL;
GString *where = NULL;
GString *having = NULL;
GString *group_by = NULL;
GString *order_by = NULL;
GString *filter_name = NULL;
/* check profile argument and increase output array if needed */
if (profile_descr != NULL) {
if (profile_descr->attr_index != ATTR_INDEX_size) {
DisplayLog(LVL_CRIT, LISTMGR_TAG,
"Profile on attribute '%s' (index=%u) is not supported",
field_name(profile_descr->attr_index),
profile_descr->attr_index);
return NULL;
}
profile_len = SZ_PROFIL_COUNT;
if (profile_descr->range_ratio_len > 0)
ratio = 1;
}
/* allocate a new report structure */
p_report = (lmgr_report_t *) MemAlloc(sizeof(lmgr_report_t));
if (!p_report)
return NULL;
p_report->p_mgr = p_mgr;
p_report->result = (struct result *)MemCalloc(report_descr_count
+ profile_len + ratio,
sizeof(struct result));
if (!p_report->result)
goto free_report;
p_report->result_count = report_descr_count + profile_len + ratio;
p_report->profile_count = profile_len;
p_report->ratio_count = ratio;
if (profile_descr != NULL)
p_report->profile_attr = ATTR_INDEX_size;
/* initially, no char * tab allocated */
p_report->str_tab = NULL;
if (p_opt)
opt = *p_opt;
fields = g_string_new(NULL);
group_by = g_string_new(NULL);
order_by = g_string_new(NULL);
having = g_string_new(NULL);
where = g_string_new(NULL);
if (full_acct(report_desc_array, report_descr_count, p_filter)
&& !opt.force_no_acct) {
listmgr_optimizedstat(p_report, p_mgr, report_descr_count,
report_desc_array, profile_descr, fields,
group_by, order_by, having, where);
use_acct_table = true;
} else { /* not only ACCT table */
/* sorting by ratio first */
if (profile_descr && profile_descr->range_ratio_len > 0) {
if (profile_descr->attr_index == ATTR_INDEX_size) {
coma_if_needed(order_by);
if (profile_descr->range_ratio_sort == SORT_ASC)
g_string_append(order_by, "sizeratio ASC");
else
g_string_append(order_by, "sizeratio DESC");
}
}
for (i = 0; i < report_descr_count; i++) {
/* no field for count or distinct count */
if (report_desc_array[i].report_type != REPORT_COUNT &&
report_desc_array[i].report_type != REPORT_COUNT_DISTINCT) {
/* in what table is this field ? */
if (is_main_field(report_desc_array[i].attr_index))
fcnt.nb_main++;
else if (is_annex_field(report_desc_array[i].attr_index))
fcnt.nb_annex++;
else {
/* Not supported yet */
DisplayLog(LVL_CRIT, LISTMGR_TAG,
"Error: report on attribute '%s' (index=%u) is not supported (report item #%u).",
field_name(report_desc_array[i].attr_index),
report_desc_array[i].attr_index, i);
rc = DB_NOT_SUPPORTED;
goto free_str;
}
}
sprintf(attrname, "attr%u", i);
/* what kind of stat on this field ? */
switch (report_desc_array[i].report_type) {
case REPORT_MIN:
coma_if_needed(fields);
g_string_append_printf(fields, "MIN(%s) as %s",
field_str(report_desc_array[i].
attr_index), attrname);
p_report->result[i].type =
field_type(report_desc_array[i].attr_index);
break;
case REPORT_MAX:
coma_if_needed(fields);
g_string_append_printf(fields, "MAX(%s) as %s",
field_str(report_desc_array[i].
attr_index), attrname);
p_report->result[i].type =
field_type(report_desc_array[i].attr_index);
break;
case REPORT_AVG:
coma_if_needed(fields);
g_string_append_printf(fields, "ROUND(AVG(%s)) as %s",
field_str(report_desc_array[i].
attr_index), attrname);
p_report->result[i].type =
field_type(report_desc_array[i].attr_index);
break;
case REPORT_SUM:
coma_if_needed(fields);
g_string_append_printf(fields, "SUM(%s) as %s",
field_str(report_desc_array[i].
attr_index), attrname);
p_report->result[i].type =
field_type(report_desc_array[i].attr_index);
break;
case REPORT_COUNT:
coma_if_needed(fields);
g_string_append_printf(fields, "COUNT(*) as %s", attrname);
p_report->result[i].type = DB_BIGUINT;
break;
case REPORT_COUNT_DISTINCT:
coma_if_needed(fields);
g_string_append_printf(fields, "COUNT(DISTINCT(%s)) as %s",
field_str(report_desc_array[i].
attr_index), attrname);
p_report->result[i].type = DB_BIGUINT;
break;
case REPORT_GROUP_BY:
coma_if_needed(fields);
g_string_append_printf(fields, "%s as %s",
field_str(report_desc_array[i].
attr_index), attrname);
coma_if_needed(group_by);
g_string_append(group_by, attrname);
p_report->result[i].type =
field_type(report_desc_array[i].attr_index);
break;
}
/* is this field sorted ? */
append_sort_order(order_by, attrname,
report_desc_array[i].sort_flag);
/* is this field filtered ? */
listmgr_fieldfilter(p_report, p_mgr, report_desc_array, attrname,
having, where, i);
p_report->result[i].flags =
field_flag(report_desc_array[i].attr_index);
}
/* generate size profile */
if (profile_descr != NULL) {
if (profile_descr->attr_index == ATTR_INDEX_size) {
coma_if_needed(fields);
g_string_append(fields, "SUM(size=0)");
for (i = 1; i < SZ_PROFIL_COUNT - 1; i++)
g_string_append_printf(fields,
",SUM(" SZRANGE_FUNC "(size)=%u)",
i - 1);
g_string_append_printf(fields,
",SUM(" SZRANGE_FUNC "(size)>=%u)",
SZ_PROFIL_COUNT - 1);
for (i = 0; i < SZ_PROFIL_COUNT; i++)
p_report->result[i + report_descr_count].type = DB_BIGUINT;
if (profile_descr->range_ratio_len > 0) {
/* add ratio field and sort it */
coma_if_needed(fields);
g_string_append_printf(fields, "SUM(size>=%llu",
SZ_MIN_BY_INDEX(profile_descr->
range_ratio_start));
/* is the last range = 1T->inf ? */
if (profile_descr->range_ratio_start +
profile_descr->range_ratio_len >= SZ_PROFIL_COUNT)
g_string_append(fields, ")");
else
g_string_append_printf(fields, " and size<%llu)",
SZ_MIN_BY_INDEX(profile_descr->range_ratio_start
+ profile_descr->range_ratio_len));
g_string_append(fields, "/COUNT(*) as sizeratio");
}
}
}
}
/* process filter */
if (!(no_filter(p_filter))) {
if (full_acct(report_desc_array, report_descr_count, p_filter)
&& !opt.force_no_acct) {
int filter_acct;
/* filter on acct fields only */
filter_acct = filter2str(p_mgr, where, p_filter, T_ACCT,
(!GSTRING_EMPTY(where) ? AOF_LEADING_SEP : 0)
| AOF_PREFIX);
if (filter_acct > 0)
use_acct_table = true;
} else {
/* process NAMES filters apart, as with must then join with
* DISTINCT(id) */
filter_where(p_mgr, p_filter, &fcnt, where,
(!GSTRING_EMPTY(where) ? AOF_LEADING_SEP : 0)
| AOF_SKIP_NAME);
filter_name = g_string_new(NULL);
fcnt.nb_names =
filter2str(p_mgr, filter_name, p_filter, T_DNAMES, 0);
}
}
/* start building the whole request */
req = g_string_new("SELECT ");
g_string_append_printf(req, "%s FROM ", fields->str);
/* FROM clause */
if (use_acct_table) {
g_string_append(req, ACCT_TABLE);
query_tab = T_ACCT;
} else {
bool distinct;
filter_from(p_mgr, &fcnt, req, &query_tab, &distinct, AOF_SKIP_NAME);
if (filter_name != NULL && !GSTRING_EMPTY(filter_name)) {
g_string_append_printf(req, " INNER JOIN (SELECT DISTINCT(id)"
" FROM " DNAMES_TABLE " WHERE %s) N"
" ON %s.id=N.id", filter_name->str,
table2name(query_tab));
/* FIXME: what if NAMES is the query tab? */
}
/* FIXME: do the same for stripe items */
}
/* Build the request */
if (!GSTRING_EMPTY(where))
g_string_append_printf(req, " WHERE %s", where->str);
if (!GSTRING_EMPTY(group_by))
g_string_append_printf(req, " GROUP BY %s", group_by->str);
if (!GSTRING_EMPTY(having))
g_string_append_printf(req, " HAVING %s", having->str);
if (!GSTRING_EMPTY(order_by))
g_string_append_printf(req, " ORDER BY %s", order_by->str);
/* iterator opt */
if (opt.list_count_max > 0)
g_string_append_printf(req, " LIMIT %u", opt.list_count_max);
retry:
/* execute request (expect that ACCT table does not exists) */
if (use_acct_table)
rc = db_exec_sql_quiet(&p_mgr->conn, req->str,
&p_report->select_result);
else
rc = db_exec_sql(&p_mgr->conn, req->str, &p_report->select_result);
if (lmgr_delayed_retry(p_mgr, rc))
goto retry;
/* if the ACCT table does exist, switch to standard mode */
if (use_acct_table && (rc == DB_NOT_EXISTS)) {
lmgr_iter_opt_t new_opt;
if (p_opt != NULL)
new_opt = *p_opt;
else
new_opt.list_count_max = 0;
new_opt.force_no_acct = true;
DisplayLog(LVL_EVENT, LISTMGR_TAG,
"No accounting info: switching to standard query mode");
g_string_free(req, TRUE);
g_string_free(fields, TRUE);
g_string_free(group_by, TRUE);
g_string_free(order_by, TRUE);
g_string_free(having, TRUE);
g_string_free(where, TRUE);
if (filter_name != NULL)
g_string_free(filter_name, TRUE);
return ListMgr_Report(p_mgr, report_desc_array, report_descr_count,
profile_descr, p_filter, &new_opt);
}
free_str:
/* these are always allocated */
g_string_free(fields, TRUE);
g_string_free(group_by, TRUE);
g_string_free(order_by, TRUE);
g_string_free(having, TRUE);
g_string_free(where, TRUE);
/* these may not be allocated */
if (req != NULL)
g_string_free(req, TRUE);
if (filter_name != NULL)
g_string_free(filter_name, TRUE);
if (rc == DB_SUCCESS)
return p_report;
/* error */
MemFree(p_report->result);
free_report:
MemFree(p_report);
return NULL;
} /* ListMgr_Report */
/**
* Initialize a recovery process.
* \param p_filter[in] (optional) filter partial filesystem recovery
* \retval DB_SUCCESS the recovery process successfully started;
* the stats indicate the recovery states we can expect.
* \retval DB_ALREADY_EXISTS a recovery process already started
* and was not properly completed. stats indicate the current status.
* \retval error another error occurred.
*/
int ListMgr_RecovInit( lmgr_t * p_mgr, const lmgr_filter_t * p_filter, lmgr_recov_stat_t * p_stats )
{
int rc;
db_value_t report_val;
unsigned int nb;
struct lmgr_report_t * report;
report_field_descr_t report_count = {-1, REPORT_COUNT, SORT_NONE, false, 0, FV_NULL};
/** @TODO use glib strings */
char query[4096];
char filter_str[4096] = "";
char *filter_curr = filter_str;
#define has_filters (filter_curr != filter_str)
int distinct = 0;
rc = ListMgr_RecovStatus( p_mgr, p_stats );
if (rc == 0)
{
if (p_stats->total != 0) /* RECOVERY table exists and is not empty */
return DB_ALREADY_EXISTS;
}
else if ( rc != DB_NOT_EXISTS ) /* other error */
return rc;
if ( rc == 0 )
{
DisplayLog( LVL_EVENT, LISTMGR_TAG, "Dropping any previous "RECOV_TABLE" table" );
/* start from clean state (no table, no indexes, no addl field) */
rc = db_drop_component(&p_mgr->conn, DBOBJ_TABLE, RECOV_TABLE);
if ( rc )
return rc;
}
if ( p_filter )
{
/* dummy vars */
char filter_dir_str[512] = "";
unsigned int filter_dir_index = 0;
if (dir_filter(p_mgr, filter_dir_str, p_filter, &filter_dir_index, NULL) != FILTERDIR_NONE)
{
DisplayLog( LVL_CRIT, LISTMGR_TAG, "Directory filter not supported for recovery");
return DB_NOT_SUPPORTED;
}
if (filter2str(p_mgr, filter_curr, p_filter, T_MAIN, AOF_PREFIX) > 0)
filter_curr += strlen(filter_curr);
if (filter2str(p_mgr, filter_curr, p_filter, T_ANNEX,
(has_filters ? AOF_LEADING_SEP : 0) | AOF_PREFIX) > 0)
filter_curr += strlen(filter_curr);
if (filter2str(p_mgr, filter_curr, p_filter, T_DNAMES,
(has_filters ? AOF_LEADING_SEP : 0) | AOF_PREFIX) > 0)
{
filter_curr += strlen(filter_curr);
distinct = 1;
}
if (filter2str(p_mgr, filter_curr, p_filter, T_STRIPE_INFO,
(has_filters ? AOF_LEADING_SEP : 0) | AOF_PREFIX) > 0)
filter_curr += strlen(filter_curr);
if (filter2str(p_mgr, filter_curr, p_filter, T_STRIPE_ITEMS,
(has_filters ? AOF_LEADING_SEP : 0) | AOF_PREFIX) > 0)
{
filter_curr += strlen(filter_curr);
distinct = 1;
}
}
DisplayLog( LVL_EVENT, LISTMGR_TAG, "Populating "RECOV_TABLE" table (this can take a few minutes)..." );
/* create the recovery table */
if (distinct)
{
/* need to select only 1 instance of each object when joining with STRIPE_ITEMS or NAMES */
strcpy(query, "CREATE TABLE "RECOV_TABLE
" SELECT DISTINCT("MAIN_TABLE".id)," BUILD_RECOV_LIST_FIELDS_NAMES
" FROM "MAIN_TABLE" LEFT JOIN "ANNEX_TABLE" ON "
"("MAIN_TABLE".id = "ANNEX_TABLE".id)"
" LEFT JOIN "DNAMES_TABLE" ON "
"("MAIN_TABLE".id = "DNAMES_TABLE".id)"
" LEFT JOIN "STRIPE_INFO_TABLE" ON "
"("MAIN_TABLE".id = "STRIPE_INFO_TABLE".id)"
" LEFT JOIN "STRIPE_ITEMS_TABLE" ON "
"("MAIN_TABLE".id = "STRIPE_ITEMS_TABLE".id)");
}
else
{
strcpy(query, "CREATE TABLE "RECOV_TABLE
" SELECT "MAIN_TABLE".id," BUILD_RECOV_LIST_FIELDS
" FROM "MAIN_TABLE" LEFT JOIN "ANNEX_TABLE" ON "
"("MAIN_TABLE".id = "ANNEX_TABLE".id)"
" LEFT JOIN "STRIPE_INFO_TABLE" ON "
"("MAIN_TABLE".id = "STRIPE_INFO_TABLE".id)");
}
if (has_filters)
{
strcat(query, " WHERE ");
strcat(query, filter_str);
}
/* the whole function is not atomic as we try to preserve the progress
* in case of DB engine failure. So we retry each step independently.
*/
retry1:
rc = db_exec_sql(&p_mgr->conn, query, NULL);
if (lmgr_delayed_retry(p_mgr, rc))
goto retry1;
else if (rc)
return rc;
DisplayLog( LVL_EVENT, LISTMGR_TAG, "Building indexes on "RECOV_TABLE" table..." );
/* create pk */
retry2:
rc = db_exec_sql( &p_mgr->conn, "ALTER TABLE "RECOV_TABLE" ADD PRIMARY KEY (id)", NULL );
if (lmgr_delayed_retry(p_mgr, rc))
goto retry2;
else if (rc)
return rc;
/* add recov_status column */
retry3:
rc = db_exec_sql( &p_mgr->conn, "ALTER TABLE "RECOV_TABLE" ADD COLUMN recov_status INTEGER", NULL );
if (lmgr_delayed_retry(p_mgr, rc))
goto retry3;
else if (rc)
return rc;
/* add index on status */
retry4:
rc = db_exec_sql( &p_mgr->conn,
"CREATE INDEX recov_st_index ON "RECOV_TABLE"(recov_status)",
NULL );
if (lmgr_delayed_retry(p_mgr, rc))
goto retry4;
else if (rc)
return rc;
/* count entries of each status */
expected_recov_status( p_mgr, p_stats );
/* if there is a filter on OSTs, report distinct ids */
if (distinct)
report_count.report_type = REPORT_COUNT_DISTINCT;
/* double check entry count before deleting entries */
report = ListMgr_Report(p_mgr, &report_count, 1, NULL, p_filter, NULL);
if (report == NULL)
return DB_REQUEST_FAILED;
nb = 1;
rc = ListMgr_GetNextReportItem(report, &report_val, &nb, NULL);
ListMgr_CloseReport(report);
if (rc)
return rc;
if ( nb == 0 )
return DB_REQUEST_FAILED;
if ( report_val.value_u.val_biguint != p_stats->total )
{
DisplayLog( LVL_CRIT, LISTMGR_TAG, "ERROR: recovery count (%llu) is different from entry count in main table (%lld): preserving entries",
p_stats->total, report_val.value_u.val_biguint );
return DB_REQUEST_FAILED;
}
/* clean previous DB content */
return ListMgr_MassRemove( p_mgr, p_filter, NULL );
}
/** check that validator is matching for a given entry */
int ListMgr_CheckStripe(lmgr_t *p_mgr, const entry_id_t *p_id, int validator)
{
char *res;
result_handle_t result;
int rc = DB_SUCCESS;
GString *req = NULL;
DEF_PK(pk);
#ifndef HAVE_LLAPI_FSWAP_LAYOUTS
if (validator != VALID_EXISTS)
validator = VALID(p_id);
#endif
entry_id2pk(p_id, PTR_PK(pk));
req = g_string_new("SELECT validator FROM " STRIPE_INFO_TABLE " WHERE id=");
g_string_append_printf(req, DPK, pk);
retry:
rc = db_exec_sql(&p_mgr->conn, req->str, &result);
if (lmgr_delayed_retry(p_mgr, rc))
goto retry;
else if (rc)
goto out;
rc = db_next_record(&p_mgr->conn, &result, &res, 1);
if (lmgr_delayed_retry(p_mgr, rc))
goto retry;
if (rc == DB_END_OF_LIST)
rc = DB_NOT_EXISTS;
if (rc)
goto res_free;
if (res == NULL) {
rc = DB_ATTR_MISSING;
goto res_free;
}
if (validator == VALID_EXISTS) {
DisplayLog(LVL_FULL, LISTMGR_TAG, DFID ": validator exists (%s): OK",
PFID(p_id), res);
/* just check it exists */
rc = DB_SUCCESS;
} else if (atoi(res) != validator) {
DisplayLog(LVL_FULL, LISTMGR_TAG,
DFID ": stripe change detected: gen %s->%d", PFID(p_id), res,
validator);
rc = DB_OUT_OF_DATE;
} else { /* validator matches */
DisplayLog(LVL_FULL, LISTMGR_TAG, DFID ": stripe gen is unchanged (%d)",
PFID(p_id), validator);
rc = DB_SUCCESS;
}
res_free:
db_result_free(&p_mgr->conn, &result);
out:
g_string_free(req, TRUE);
DisplayLog(LVL_FULL, LISTMGR_TAG, DFID ": %s returns with status=%d",
PFID(p_id), __func__, rc);
return rc;
}
