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/*
* Copyright (c) 2018 Balabit
* Copyright (c) 2018 László Várady <laszlo.varady@balabit.com>
*
* 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As an additional exemption you are allowed to compile & link against the
* OpenSSL libraries as published by the OpenSSL project. See the file
* COPYING for details.
*
*/
#ifndef LOGTHRSOURCEDRV_H
#define LOGTHRSOURCEDRV_H
#include "syslog-ng.h"
#include "driver.h"
#include "logsource.h"
#include "cfg.h"
#include "logpipe.h"
#include "logmsg/logmsg.h"
#include "msg-format.h"
#include "mainloop-threaded-worker.h"
#include "stats/stats-cluster-key-builder.h"
typedef struct _LogThreadedSourceDriver LogThreadedSourceDriver;
typedef struct _LogThreadedSourceWorker LogThreadedSourceWorker;
typedef struct _LogThreadedSourceWorkerOptions
{
LogSourceOptions super;
MsgFormatOptions parse_options;
AckTrackerFactory *ack_tracker_factory;
} LogThreadedSourceWorkerOptions;
typedef struct _WakeupCondition
{
GMutex lock;
GCond cond;
gboolean awoken;
} WakeupCondition;
struct _LogThreadedSourceWorker
{
LogSource super;
MainLoopThreadedWorker thread;
LogThreadedSourceDriver *control;
WakeupCondition wakeup_cond;
gboolean under_termination;
gint worker_index;
gboolean (*thread_init)(LogThreadedSourceWorker *self);
void (*thread_deinit)(LogThreadedSourceWorker *self);
void (*run)(LogThreadedSourceWorker *self);
void (*request_exit)(LogThreadedSourceWorker *self);
void (*wakeup)(LogThreadedSourceWorker *self);
};
struct _LogThreadedSourceDriver
{
LogSrcDriver super;
LogThreadedSourceWorkerOptions worker_options;
LogThreadedSourceWorker **workers;
gint num_workers;
gboolean auto_close_batches;
gchar *transport_name;
gsize transport_name_len;
void (*format_stats_key)(LogThreadedSourceDriver *self, StatsClusterKeyBuilder *kb);
LogThreadedSourceWorker *(*worker_construct)(LogThreadedSourceDriver *self, gint worker_index);
};
void log_threaded_source_worker_options_defaults(LogThreadedSourceWorkerOptions *options);
void log_threaded_source_worker_options_init(LogThreadedSourceWorkerOptions *options, GlobalConfig *cfg,
const gchar *group_name, gint num_workers);
void log_threaded_source_worker_options_destroy(LogThreadedSourceWorkerOptions *options);
void log_threaded_source_driver_set_transport_name(LogThreadedSourceDriver *self, const gchar *transport_name);
void log_threaded_source_driver_init_instance(LogThreadedSourceDriver *self, GlobalConfig *cfg);
gboolean log_threaded_source_driver_init_method(LogPipe *s);
gboolean log_threaded_source_driver_deinit_method(LogPipe *s);
void log_threaded_source_driver_free_method(LogPipe *s);
static inline void
log_threaded_source_driver_set_num_workers(LogDriver *s, gint num_workers)
{
LogThreadedSourceDriver *self = (LogThreadedSourceDriver *) s;
self->num_workers = num_workers;
}
static inline LogSourceOptions *
log_threaded_source_driver_get_source_options(LogDriver *s)
{
LogThreadedSourceDriver *self = (LogThreadedSourceDriver *) s;
return &self->worker_options.super;
}
static inline MsgFormatOptions *
log_threaded_source_driver_get_parse_options(LogDriver *s)
{
LogThreadedSourceDriver *self = (LogThreadedSourceDriver *) s;
return &self->worker_options.parse_options;
}
/* Worker */
void log_threaded_source_worker_init_instance(LogThreadedSourceWorker *self, LogThreadedSourceDriver *driver,
gint worker_index);
void log_threaded_source_worker_free(LogPipe *s);
void log_threaded_source_worker_close_batch(LogThreadedSourceWorker *self);
/* blocking API */
void log_threaded_source_worker_blocking_post(LogThreadedSourceWorker *self, LogMessage *msg);
/* non-blocking API, use it wisely (thread boundaries); call close_batch() at least before suspending */
void log_threaded_source_worker_post(LogThreadedSourceWorker *self, LogMessage *msg);
gboolean log_threaded_source_worker_free_to_send(LogThreadedSourceWorker *self);
#endif
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