/*
- * Copyright (C) 2013 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ * Copyright (C) 2013 Jérémie Galarneau <jeremie.galarneau@efficios.com>
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License, version 2 only, as
- * published by the Free Software Foundation.
+ * SPDX-License-Identifier: GPL-2.0-only
*
- * This program 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 General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 51
- * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef _CONFIG_H
#define _CONFIG_H
-#include <common/config/ini.h>
#include <common/config/config-session-abi.h>
#include <common/macros.h>
#include <stdint.h>
-struct config_entry {
- /* section is NULL if the entry is not in a section */
- const char *section;
- const char *name;
- const char *value;
+struct config_load_session_override_attr {
+ char *path_url;
+ char *ctrl_url;
+ char *data_url;
+ char *session_name;
};
/* Instance of a configuration writer. */
struct config_writer;
-/*
- * A config_entry_handler_cb receives config_entry structures belonging to the
- * sections the handler has been registered to.
- *
- * The config_entry and its members are only valid for the duration of the call
- * and must not be freed.
- *
- * config_entry_handler_cb may return negative value to indicate an error in
- * the configuration file.
- */
-typedef int (*config_entry_handler_cb)(const struct config_entry *, void *);
-
-/*
- * Read a section's entries in an INI configuration file.
- *
- * path may be NULL, in which case the following paths will be tried:
- * 1) $HOME/.lttng/lttng.conf
- * 2) /etc/lttng/lttng.conf
- *
- * handler will only be called with entries belonging to the provided section.
- * If section is NULL, all entries will be relayed to handler. If section is
- * "", only the global entries are relayed.
- *
- * Returns 0 on success. Negative values are error codes. If the return value
- * is positive, it represents the line number on which a parsing error occurred.
- */
-LTTNG_HIDDEN
-int config_get_section_entries(const char *path, const char *section,
- config_entry_handler_cb handler, void *user_data);
-
-/*
- * Parse a configuration value.
- *
- * This function expects either an unsigned integer or a boolean text option.
- * The following strings are recognized: true, yes, on, false, no and off.
- *
- * Returns either the value of the parsed integer, or 0/1 if a boolean text
- * string was recognized. Negative values indicate an error.
- */
-LTTNG_HIDDEN
-int config_parse_value(const char *value);
-
/*
* Create an instance of a configuration writer.
*
- * fd_output File to which the XML content must be written. The file will be
- * closed once the config_writer has been destroyed.
+ * fd_output File to which the XML content must be written. fd_output is
+ * owned by the caller.
*
* indent If other than 0 the XML will be pretty printed
* with indentation and newline.
* Returns an instance of a configuration writer on success, NULL on
* error.
*/
-LTTNG_HIDDEN
struct config_writer *config_writer_create(int fd_output, int indent);
/*
* Returns zero if the XML document could be closed cleanly. Negative values
* indicate an error.
*/
-LTTNG_HIDDEN
int config_writer_destroy(struct config_writer *writer);
/*
* Returns zero if the XML element could be opened.
* Negative values indicate an error.
*/
-LTTNG_HIDDEN
int config_writer_open_element(struct config_writer *writer,
const char *element_name);
* Returns zero if the XML element's attribute could be written.
* Negative values indicate an error.
*/
-LTTNG_HIDDEN
int config_writer_write_attribute(struct config_writer *writer,
const char *name, const char *value);
* Returns zero if the XML document could be closed cleanly.
* Negative values indicate an error.
*/
-LTTNG_HIDDEN
int config_writer_close_element(struct config_writer *writer);
/*
* Returns zero if the element's value could be written.
* Negative values indicate an error.
*/
-LTTNG_HIDDEN
int config_writer_write_element_unsigned_int(struct config_writer *writer,
const char *element_name, uint64_t value);
*
* Returns zero if the element's value could be written.
* Negative values indicate an error.
- */LTTNG_HIDDEN
+ */
int config_writer_write_element_signed_int(struct config_writer *writer,
const char *element_name, int64_t value);
* Returns zero if the element's value could be written.
* Negative values indicate an error.
*/
-LTTNG_HIDDEN
int config_writer_write_element_bool(struct config_writer *writer,
const char *element_name, int value);
* Returns zero if the element's value could be written.
* Negative values indicate an error.
*/
-LTTNG_HIDDEN
int config_writer_write_element_string(struct config_writer *writer,
const char *element_name, const char *value);
+/*
+ * Write an element of type double.
+ *
+ * writer An instance of a configuration writer.
+ *
+ * element_name Element name.
+ *
+ * value Double value of the element
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int config_writer_write_element_double(struct config_writer *writer,
+ const char *element_name,
+ double value);
+
/*
* Load session configurations from a file.
*
* session_name Name of the session to load. Will load all
* sessions from path if NULL.
*
- * override Override current session configuration if it exists.
+ * overwrite Overwrite current session configuration if it exists.
* autoload Tell to load the auto session(s).
+ * overrides The override attribute structure specifying override parameters.
*
* Returns zero if the session could be loaded successfully. Returns
* a negative LTTNG_ERR code on error.
*/
-LTTNG_HIDDEN
int config_load_session(const char *path, const char *session_name,
- int override, unsigned int autoload);
+ int overwrite, unsigned int autoload,
+ const struct config_load_session_override_attr *overrides);
#endif /* _CONFIG_H */
projects / lttng-tools.git / blobdiff