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/*
This file is part of GNUnet
Copyright (C) 2008--2013 GNUnet e.V.
GNUnet is free software: you can redistribute it and/or modify it
under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
GNUnet 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
Affero General Public License for more details.
*/
/**
* @author Sree Harsha Totakura <sreeharsha@totakura.in>
*
* @file
* API for submitting data to the testbed logger service
*
* @defgroup testbed-logger Testbed Logger service
* Submit data to the testbed logger service.
* @{
*/
#ifndef GNUNET_TESTBED_LOGGER_SERVICE_H
#define GNUNET_TESTBED_LOGGER_SERVICE_H
#ifdef __cplusplus
extern "C"
{
#if 0 /* keep Emacsens' auto-indent happy */
}
#endif
#endif
#include "gnunet_util_lib.h"
/**
* Opaque handle for the logging service
*/
struct GNUNET_TESTBED_LOGGER_Handle;
/**
* Connect to the testbed logger service
*
* @param cfg configuration to use
* @return the handle which can be used for sending data to the service; NULL
* upon any error
*/
struct GNUNET_TESTBED_LOGGER_Handle *
GNUNET_TESTBED_LOGGER_connect (const struct GNUNET_CONFIGURATION_Handle *cfg);
/**
* Disconnect from the logger service. Also cancels any pending send handles.
*
* @param h the logger handle
*/
void
GNUNET_TESTBED_LOGGER_disconnect (struct GNUNET_TESTBED_LOGGER_Handle *h);
/**
* Functions of this type are called to notify a successful transmission of the
* message to the logger service.
*
* @param cls the closure given to GNUNET_TESTBED_LOGGER_send()
* @param size the amount of data sent
*/
typedef void
(*GNUNET_TESTBED_LOGGER_FlushCompletion) (void *cls,
size_t size);
/**
* Send data to be logged to the logger service. The data will be buffered and
* will be sent upon an explicit call to GNUNET_TESTBED_LOGGER_flush() or upon
* exceeding a threshold size.
*
* @param h the logger handle
* @param data the data to send;
* @param size how many bytes of @a data to send
*/
void
GNUNET_TESTBED_LOGGER_write (struct GNUNET_TESTBED_LOGGER_Handle *h,
const void *data,
size_t size);
/**
* Flush the buffered data to the logger service
*
* @param h the logger handle
* @param cb the callback to call after the data is flushed
* @param cb_cls the closure for @a cb
*/
void
GNUNET_TESTBED_LOGGER_flush (struct GNUNET_TESTBED_LOGGER_Handle *h,
GNUNET_TESTBED_LOGGER_FlushCompletion cb,
void *cb_cls);
/**
* Cancel notification upon flush. Should only be used when the flush
* completion callback given to GNUNET_TESTBED_LOGGER_flush() is not already
* called.
*
* @param h the logger handle
*/
void
GNUNET_TESTBED_LOGGER_flush_cancel (struct GNUNET_TESTBED_LOGGER_Handle *h);
#if 0 /* keep Emacsens' auto-indent happy */
{
#endif
#ifdef __cplusplus
}
#endif
#endif /* GNUNET_TESTBED_LOGGER_SERVICE_H */
/** @} */ /* end of group */
/* End of gnunet_testbed_logger_service.h */
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