/**
* Submit a db 'delete' request.
* The request is inserted in the appropriate db queue.
* (always asynchronous)
*/
int handlemap_db_delete(nfs23_map_handle_t *p_in_nfs23_digest)
{
unsigned int i;
db_op_item_t *new_task;
int rc;
/* which thread is going to handle this inode ? */
i = select_db_queue(p_in_nfs23_digest);
/* get a new db operation */
pthread_mutex_lock(&db_thread[i].pool_mutex);
new_task = pool_alloc(db_thread[i].dbop_pool, NULL);
pthread_mutex_unlock(&db_thread[i].pool_mutex);
if (!new_task)
return HANDLEMAP_SYSTEM_ERROR;
/* fill the task info */
new_task->op_type = DELETE;
new_task->op_arg.fh_info.nfs23_digest = *p_in_nfs23_digest;
rc = dbop_push(&db_thread[i].work_queue, new_task);
if (rc)
return rc;
return HANDLEMAP_SUCCESS;
}
/**
* Gives the order to each DB thread to reload
* the content of its database and insert it
* to the hash table.
* The function blocks until all threads have loaded their data.
*/
int handlemap_db_reaload_all(hash_table_t * target_hash)
{
unsigned int i;
db_op_item_t *new_task;
int rc;
/* give the job to all threads */
for(i = 0; i < nb_db_threads; i++)
{
/* get a new db operation */
P(db_thread[i].pool_mutex);
new_task = pool_alloc(&db_thread[i].dbop_pool, NULL);
V(db_thread[i].pool_mutex);
if(!new_task)
return HANDLEMAP_SYSTEM_ERROR;
/* can you fill it ? */
new_task->op_type = LOAD;
new_task->op_arg.hash = target_hash;
rc = dbop_push(&db_thread[i].work_queue, new_task);
if(rc)
return rc;
}
/* wait for all threads to finish their job */
for(i = 0; i < nb_db_threads; i++)
{
wait_thread_jobs_finished(&db_thread[i]);
}
return HANDLEMAP_SUCCESS;
} /* handlemap_db_reaload_all */
/**
* Submit a db 'insert' request.
* The request is inserted in the appropriate db queue.
*/
int handlemap_db_insert(nfs23_map_handle_t *p_in_nfs23_digest,
const void *data, uint32_t len)
{
unsigned int i;
db_op_item_t *new_task;
int rc;
if (!synchronous) {
/* which thread is going to handle this inode ? */
i = select_db_queue(p_in_nfs23_digest);
/* get a new db operation */
pthread_mutex_lock(&db_thread[i].pool_mutex);
new_task = pool_alloc(db_thread[i].dbop_pool, NULL);
pthread_mutex_unlock(&db_thread[i].pool_mutex);
if (!new_task)
return HANDLEMAP_SYSTEM_ERROR;
/* fill the task info */
new_task->op_type = INSERT;
new_task->op_arg.fh_info.nfs23_digest = *p_in_nfs23_digest;
memcpy(new_task->op_arg.fh_info.fh4_data, data, len);
new_task->op_arg.fh_info.fh4_len = len;
rc = dbop_push(&db_thread[i].work_queue, new_task);
if (rc)
return rc;
}
/* else: @todo not supported yet */
return HANDLEMAP_SUCCESS;
}