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/**
* @file schema_features.h
* @author Michal Vasko <mvasko@cesnet.cz>
* @brief Header for schema features.
*
* Copyright (c) 2015 - 2020 CESNET, z.s.p.o.
*
* This source code is licensed under BSD 3-Clause License (the "License").
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://opensource.org/licenses/BSD-3-Clause
*/
#ifndef LY_SCHEMA_FEATURES_H_
#define LY_SCHEMA_FEATURES_H_
#include "log.h"
struct ly_ctx;
struct lysp_module;
struct lysp_qname;
/**
* @brief Evaluate if-features array.
*
* @param[in] ctx libyang context.
* @param[in] iffeatures Sized array of if-features to evaluate.
* @param[out] enabled Whether if-features evaluated to true or false.
* @return LY_SUCCESS on success.
* @return LY_ERR on error.
*/
LY_ERR lys_eval_iffeatures(const struct ly_ctx *ctx, const struct lysp_qname *iffeatures, ly_bool *enabled);
/**
* @brief Check whether all enabled features have their if-features satisfied.
*
* @param[in] pmod Parsed module features to check.
* @return LY_SUCCESS on success.
* @return LY_EDENIED if there was an enabled feature with disabled if-feature.
*/
LY_ERR lys_check_features(const struct lysp_module *pmod);
/**
* @brief Set the specified features of a parsed module ignoring their own if-features. These are all checked before
* compiling the module(s).
*
* @param[in] pmod Parsed module to modify.
* @param[in] features Array of features ended with NULL to be enabled if the module is being implemented.
* The feature string '*' enables all and array of length 1 with only the terminating NULL explicitly disables all
* the features. In case the parameter is NULL, the features are untouched - left disabled in newly loaded module or
* with the current features settings in case the module is already present in the context.
* @return LY_SUCCESS on success.
* @return LY_EEXIST if the specified features were already set.
* @return LY_ERR on error.
*/
LY_ERR lys_set_features(struct lysp_module *pmod, const char **features);
/**
* @brief Compile if-features of features in the provided module and all its submodules.
*
* @param[in] pmod Parsed module to process.
* @return LY_ERR value.
*/
LY_ERR lys_compile_feature_iffeatures(struct lysp_module *pmod);
#endif /* LY_SCHEMA_FEATURES_H_ */
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