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+/*
+ * Copyright (C) 2012-2014 Red Hat, Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Authors: Radek Novacek <rnovacek@redhat.com>
+ */
+
+#ifndef OPENLMI_H
+#define OPENLMI_H
+
+#include <cmpidt.h>
+#include <stdbool.h>
+
+typedef struct {
+ const char *group;
+ const char *key;
+ const char *value;
+} ConfigEntry;
+
+/**
+ * This function returns object path of an instance of CIM_ComputerSystem
+ * subclass.
+ *
+ * The instance is obtained by enumerating the configured ComputerSystem
+ * classname.
+ *
+ * @warning Call lmi_init function before calling this function!
+ *
+ * @return CIM_ComputerSystem object path
+ */
+CMPIObjectPath *lmi_get_computer_system(void);
+
+/**
+ * This function returns system name for the computer system
+ *
+ * @note Use this in the SystemName property of all provider created instances.
+ *
+ * @warning Call lmi_init function before calling this function!
+ *
+ * @return The scoping System's Name.
+ */
+const char *lmi_get_system_name(void);
+
+/**
+ * This function returns system creation class name
+ *
+ * @note Use this in the SystemCreationClassName property of all provider
+ * created instances.
+ *
+ * @return The scoping System's Creation class name.
+ */
+const char *lmi_get_system_creation_class_name(void);
+
+/**
+ * Initialize usage base openlmi tools like configuration file access,
+ * logging etc.
+ *
+ * @note You must call this function prior to getting any configuration option
+ * or usage of logging. lmi_get_system_creation_class_name requires that this
+ * function will be called first (SystemCreationClassName is read from config).
+ *
+ * This function is reentrant and thread safe, but it should be called always
+ * with same parameters
+ *
+ * @param provider Identification of the CIM provider (must be same as name of the
+ * configuration file)
+ * @param cb CMPIBroker
+ * @param ctx CMPIContext
+ * @param provider_config_defaults Array of default config values for given provider
+ * terminated by empty struct or NULL if there is no
+ * provider-specific configuration
+ */
+void lmi_init(const char *provider, const CMPIBroker *cb,
+ const CMPIContext *ctx,
+ const ConfigEntry *provider_config_defaults);
+
+/**
+ * Reads string key out of configration files or default configration options.
+ *
+ * @param group Configration group
+ * @param key Configration key
+ * @return String value of the key or NULL if group/key is not found
+ */
+char *lmi_read_config(const char *group, const char *key);
+
+/**
+ * Reads a boolean value out of configuration files or default configuration
+ * options.
+ *
+ * Values "1", "yes", "true", and "on" are converted to TRUE, others to FALSE
+ *
+ * @param group Configration group
+ * @param key Configration key
+ * @return Boolean value of the key, false if the key is not in the
+ * configuration files neither in default options.
+ */
+bool lmi_read_config_boolean(const char *group, const char *key);
+
+/**
+ * To use standard CIMOM logging facility, broker must be assigned. Without
+ * calling this function, logging will go to stderr.
+ *
+ * @deprecated Use lmi_init instead
+ *
+ * @param log_id Identification of log messages
+ * @param cb CMPIBroker
+ */
+void lmi_init_logging(const char *log_id, const CMPIBroker *cb);
+
+/**
+ * Get currently set logging level
+ *
+ * @return logging level
+ */
+int lmi_log_level(void);
+
+/**
+ * Set logging level
+ *
+ * @note This method shouldn't be used directly, user setting
+ * from the configuration file should be honored
+ *
+ * @param level new logging level
+ */
+void lmi_set_log_level(int level);
+
+/**
+ * Add an instance \p w to the result \p cr.
+ *
+ * @param cr CMPIResult where should be the instance added
+ * @param w instance to add
+ * @retval true if succeeds
+ * @retval false if addition fails
+ */
+#define LMI_ReturnInstance(cr, w) KOkay(__KReturnInstance((cr), &(w).__base))
+
+enum {
+ _LMI_DEBUG_NONE=0, _LMI_DEBUG_ERROR, _LMI_DEBUG_WARN,
+ _LMI_DEBUG_INFO, _LMI_DEBUG_DEBUG
+};
+
+void _lmi_debug(int level, const char *file, int line, const char *format, ...);
+
+#define lmi_debug(...) _lmi_debug(_LMI_DEBUG_DEBUG, __FILE__, __LINE__, __VA_ARGS__)
+#define lmi_info(...) _lmi_debug(_LMI_DEBUG_INFO, __FILE__, __LINE__, __VA_ARGS__)
+#define lmi_warn(...) _lmi_debug(_LMI_DEBUG_WARN, __FILE__, __LINE__, __VA_ARGS__)
+#define lmi_error(...) _lmi_debug(_LMI_DEBUG_ERROR, __FILE__, __LINE__, __VA_ARGS__)
+
+#endif