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/*
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* Copyright (C) 2014 ABRT team
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* Copyright (C) 2014 RedHat Inc
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _ABRT_JOURNAL_H_
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#define _ABRT_JOURNAL_H_
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#include <glib.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* A systemd-journal wrapper
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* (isolates systemd API in a single compile unit)
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*/
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struct abrt_journal;
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typedef struct abrt_journal abrt_journal_t;
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/* Only journal files generated on the local machine and all journal file types
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* will be opened.
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*/
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int abrt_journal_new(abrt_journal_t **journal);
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/* Journal files generated on ALL machines and all journal file types will be
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* opened.
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*/
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int abrt_journal_new_merged(abrt_journal_t **journal);
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/* Open a directory and merge all journal files placed there.
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*/
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int abrt_journal_open_directory(abrt_journal_t **journal, const char *directory);
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void abrt_journal_free(abrt_journal_t *journal);
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int abrt_journal_set_journal_filter(abrt_journal_t *journal,
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GList *journal_filter_list);
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int abrt_journal_get_field(abrt_journal_t *journal,
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const char *field,
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const void **value,
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size_t *value_len);
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int abrt_journal_get_int_field(abrt_journal_t *journal,
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const char *field,
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int *value);
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int abrt_journal_get_unsigned_field(abrt_journal_t *journal,
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const char *field,
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unsigned *value);
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/* Returns allocated memory if value is NULL; otherwise makes copy of journald
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* field to memory pointed by value arg. */
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char *abrt_journal_get_string_field(abrt_journal_t *journal,
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const char *field,
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char *value);
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char *abrt_journal_get_log_line(abrt_journal_t *journal);
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char *abrt_journal_get_next_log_line(void *data);
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int abrt_journal_get_cursor(abrt_journal_t *journal, char **cursor);
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int abrt_journal_set_cursor(abrt_journal_t *journal, const char *cursor);
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int abrt_journal_seek_tail(abrt_journal_t *journal);
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int abrt_journal_next(abrt_journal_t *journal);
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int abrt_journal_save_current_position(abrt_journal_t *journal,
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const char *file_name);
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int abrt_journal_restore_position(abrt_journal_t *journal,
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const char *file_name);
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/*
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* A systemd-journal listener which waits for new messages a loop and notifies
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* them via a call back
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*/
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struct abrt_journal_watch;
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typedef struct abrt_journal_watch abrt_journal_watch_t;
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typedef void (* abrt_journal_watch_callback)(struct abrt_journal_watch *watch,
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void *data);
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int abrt_journal_watch_new(abrt_journal_watch_t **watch,
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abrt_journal_t *journal,
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abrt_journal_watch_callback callback,
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void *callback_data);
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void abrt_journal_watch_free(abrt_journal_watch_t *watch);
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/*
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* Returns the watched journal.
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*/
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abrt_journal_t *abrt_journal_watch_get_journal(abrt_journal_watch_t *watch);
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/*
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* Starts reading journal messages and waiting for new messages in a loop.
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*
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* SIGTERM and SIGINT terminates the loop gracefully.
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*/
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int abrt_journal_watch_run_sync(abrt_journal_watch_t *watch);
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/*
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* Can be used to terminate the loop in abrt_journal_watch_run_sync()
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*/
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void abrt_journal_watch_stop(abrt_journal_watch_t *watch);
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/*
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* A decorator for abrt_journal_watch call backs which calls the decorated call
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* back in case where journal message contains a string from the interested
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* list.
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*/
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struct abrt_journal_watch_notify_strings
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{
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abrt_journal_watch_callback decorated_cb;
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void *decorated_cb_data;
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GList *strings;
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GList *blacklisted_strings;
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};
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void abrt_journal_watch_notify_strings(abrt_journal_watch_t *watch, void *data);
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#ifdef __cplusplus
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}
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#endif
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#endif /*_ABRT_JOURNAL_H_*/
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