Exemplos de obdo_cpu_to_le em C++ (Cpp)

Exemplo n.º 1

Arquivo: out_handler.c Projeto: Lezval/lustre

static int out_attr_get(struct tgt_session_info *tsi)
{
	const struct lu_env	*env = tsi->tsi_env;
	struct tgt_thread_info	*tti = tgt_th_info(env);
	struct obdo		*obdo = &tti->tti_u.update.tti_obdo;
	struct lu_attr		*la = &tti->tti_attr;
	struct dt_object        *obj = tti->tti_u.update.tti_dt_object;
	int			rc;

	ENTRY;

	if (!lu_object_exists(&obj->do_lu))
		RETURN(-ENOENT);

	dt_read_lock(env, obj, MOR_TGT_CHILD);
	rc = dt_attr_get(env, obj, la, NULL);
	if (rc)
		GOTO(out_unlock, rc);
	/*
	 * If it is a directory, we will also check whether the
	 * directory is empty.
	 * la_flags = 0 : Empty.
	 *          = 1 : Not empty.
	 */
	la->la_flags = 0;
	if (S_ISDIR(la->la_mode)) {
		struct dt_it		*it;
		const struct dt_it_ops	*iops;

		if (!dt_try_as_dir(env, obj))
			GOTO(out_unlock, rc = -ENOTDIR);

		iops = &obj->do_index_ops->dio_it;
		it = iops->init(env, obj, LUDA_64BITHASH, BYPASS_CAPA);
		if (!IS_ERR(it)) {
			int  result;
			result = iops->get(env, it, (const void *)"");
			if (result > 0) {
				int i;
				for (result = 0, i = 0; result == 0 && i < 3;
				     ++i)
					result = iops->next(env, it);
				if (result == 0)
					la->la_flags = 1;
			} else if (result == 0)
				/*
				 * Huh? Index contains no zero key?
				 */
				rc = -EIO;

			iops->put(env, it);
			iops->fini(env, it);
		}
	}

	obdo->o_valid = 0;
	obdo_from_la(obdo, la, la->la_valid);
	obdo_cpu_to_le(obdo, obdo);
	lustre_set_wire_obdo(NULL, obdo, obdo);

out_unlock:
	dt_read_unlock(env, obj);

	CDEBUG(D_INFO, "%s: insert attr get reply %p index %d: rc = %d\n",
	       tgt_name(tsi->tsi_tgt), tti->tti_u.update.tti_update_reply,
	       0, rc);

	update_insert_reply(tti->tti_u.update.tti_update_reply, obdo,
			    sizeof(*obdo), 0, rc);
	RETURN(rc);
}

Exemplo n.º 2

Arquivo: out_handler.c Projeto: hejin/lustre-stable

static int out_attr_get(struct tgt_session_info *tsi)
{
	const struct lu_env	*env = tsi->tsi_env;
	struct tgt_thread_info	*tti = tgt_th_info(env);
	struct obdo		*obdo = &tti->tti_u.update.tti_obdo;
	struct lu_attr		*la = &tti->tti_attr;
	struct dt_object        *obj = tti->tti_u.update.tti_dt_object;
	int			idx = tti->tti_u.update.tti_update_reply_index;
	int			rc;

	ENTRY;

	if (!lu_object_exists(&obj->do_lu)) {
		/* Usually, this will be called when the master MDT try
		 * to init a remote object(see osp_object_init), so if
		 * the object does not exist on slave, we need set BANSHEE flag,
		 * so the object can be removed from the cache immediately */
		set_bit(LU_OBJECT_HEARD_BANSHEE,
			&obj->do_lu.lo_header->loh_flags);
		RETURN(-ENOENT);
	}

	dt_read_lock(env, obj, MOR_TGT_CHILD);
	rc = dt_attr_get(env, obj, la, NULL);
	if (rc)
		GOTO(out_unlock, rc);
	/*
	 * If it is a directory, we will also check whether the
	 * directory is empty.
	 * la_flags = 0 : Empty.
	 *          = 1 : Not empty.
	 */
	la->la_flags = 0;
	if (S_ISDIR(la->la_mode)) {
		struct dt_it		*it;
		const struct dt_it_ops	*iops;

		if (!dt_try_as_dir(env, obj))
			GOTO(out_unlock, rc = -ENOTDIR);

		iops = &obj->do_index_ops->dio_it;
		it = iops->init(env, obj, LUDA_64BITHASH, BYPASS_CAPA);
		if (!IS_ERR(it)) {
			int  result;
			result = iops->get(env, it, (const void *)"");
			if (result > 0) {
				int i;
				for (result = 0, i = 0; result == 0 && i < 3;
				     ++i)
					result = iops->next(env, it);
				if (result == 0)
					la->la_flags = 1;
			} else if (result == 0)
				/*
				 * Huh? Index contains no zero key?
				 */
				rc = -EIO;

			iops->put(env, it);
			iops->fini(env, it);
		}
	}

	obdo->o_valid = 0;
	obdo_from_la(obdo, la, la->la_valid);
	obdo_cpu_to_le(obdo, obdo);
	lustre_set_wire_obdo(NULL, obdo, obdo);

out_unlock:
	dt_read_unlock(env, obj);

	CDEBUG(D_INFO, "%s: insert attr get reply %p index %d: rc = %d\n",
	       tgt_name(tsi->tsi_tgt), tti->tti_u.update.tti_update_reply,
	       0, rc);

	object_update_result_insert(tti->tti_u.update.tti_update_reply, obdo,
				    sizeof(*obdo), idx, rc);

	RETURN(rc);
}