projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| 1501a7f3 JG |
1 | /* |
| 2 | * Copyright (C) 2013 - Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or modify it | |
| 5 | * under the terms of the GNU General Public License, version 2 only, as | |
| 6 | * published by the Free Software Foundation. | |
| 7 | * | |
| 8 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| 11 | * more details. | |
| 12 | * | |
| 13 | * You should have received a copy of the GNU General Public License along with | |
| 14 | * this program; if not, write to the Free Software Foundation, Inc., 51 | |
| 15 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 16 | */ | |
| 17 | ||
| 18 | #ifndef _CONFIG_H | |
| 19 | #define _CONFIG_H | |
| 20 | ||
| 21 | #include <common/config/ini.h> | |
| 22 | #include <common/macros.h> | |
| 23 | ||
| 24 | struct config_entry { | |
| 25 | /* section is NULL if the entry is not in a section */ | |
| 26 | const char *section; | |
| 27 | const char *name; | |
| 28 | const char *value; | |
| 29 | }; | |
| 30 | ||
| 31 | /* | |
| 32 | * A config_entry_handler_cb receives config_entry structures belonging to the | |
| 33 | * sections the handler has been registered to. | |
| 34 | * | |
| 35 | * The config_entry and its members are only valid for the duration of the call | |
| 36 | * and must not be freed. | |
| 37 | * | |
| 38 | * config_entry_handler_cb may return negative value to indicate an error in | |
| 39 | * the configuration file. | |
| 40 | */ | |
| 41 | typedef int (*config_entry_handler_cb)(const struct config_entry *, void *); | |
| 42 | ||
| 43 | /* | |
| 44 | * Read a section's entries in an INI configuration file. | |
| 45 | * | |
| 46 | * path may be NULL, in which case the following paths will be tried: | |
| 47 | * 1) $HOME/.lttng/lttng.conf | |
| 48 | * 2) /etc/lttng/lttng.conf | |
| 49 | * | |
| 50 | * handler will only be called with entries belonging to the provided section. | |
| 51 | * If section is NULL, all entries will be relayed to handler. If section is | |
| 52 | * "", only the global entries are relayed. | |
| 53 | * | |
| 54 | * Returns 0 on success. Negative values are error codes. If the return value | |
| 55 | * is positive, it represents the line number on which a parsing error occured. | |
| 56 | */ | |
| 57 | LTTNG_HIDDEN | |
| 58 | int config_get_section_entries(const char *path, const char *section, | |
| 59 | config_entry_handler_cb handler, void *user_data); | |
| 60 | ||
| 61 | /* | |
| 62 | * Parse a configuration value. | |
| 63 | * | |
| 64 | * This function expects either an unsigned integer or a boolean text option. | |
| 65 | * The following strings are recognized: true, yes, on, false, no and off. | |
| 66 | * | |
| 67 | * Returns either the value of the parsed integer, or 0/1 if a boolean text | |
| 68 | * string was recognized. Negative values indicate an error. | |
| 69 | */ | |
| 70 | LTTNG_HIDDEN | |
| 71 | int config_parse_value(const char *value); | |
| 72 | ||
| 73 | #endif /* _CONFIG_H */ |