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/*
ELAPI
Common sink interface header.
Copyright (C) Dmitri Pal <dpal@redhat.com> 2009
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
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, see <http://www.gnu.org/licenses/>.
*/
#ifndef ELAPI_SINK_H
#define ELAPI_SINK_H
#include <time.h>
#include "collection.h"
#define ELAPI_SINK_OK 0 /* Sink can be used for logging */
#define ELAPI_SINK_SUSPENDED 1 /* Sink is temporary disabled due to recoverable error */
#define ELAPI_SINK_DISABLED 2 /* Sink is explicitely disabled by the application */
#define ELAPI_SINK_PULSE 3 /* Sink is disabled for this one event */
#define SINK_LIB_NAME_SIZE 100
#define SINK_ENTRY_POINT "get_sink_info"
#define SINK_NAME_TEMPLATE "libelapi_sink_%s.so"
#define SINK_NEVER_RETRY -1
/* Flags related to loading sinks */
#define SINK_FLAG_NO_LIMIT 0x00000000 /* NO limits to loading and manipulating this sink - default */
#define SINK_FLAG_LOAD_SINGLE 0x00000001 /* Only allow one instance of the sink per process */
struct data_descriptor {
char *appname;
void *config;
void *internal_data;
};
/* Log facility callbacks */
typedef int (*init_fn)(struct data_descriptor *dblock);
typedef void (*cleanup_fn)(struct data_descriptor *dblock);
typedef int (*format_fn)(struct data_descriptor *dblock, const char *format_str, struct collection_item *event);
typedef int (*submit_fn)(struct data_descriptor *dblock);
typedef void (*close_fn)(struct data_descriptor *dblock);
struct sink_capability {
int retry_interval;
int flags;
int instance;
init_fn init_cb;
cleanup_fn cleanup_cb;
format_fn format_cb;
submit_fn submit_cb;
close_fn close_cb;
};
/* The only open function the link can expose */
typedef void (*capability_fn)(struct sink_capability *sink_cpb_block);
struct sink_descriptor {
struct sink_capability sink_cpb_block;
struct data_descriptor dblock;
int suspended;
time_t lasttry;
void *lib_handle;
};
/*Standard capability function */
void get_sink_info(struct sink_capability *sink_cpb_block);
#endif
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