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/*-
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* BSD LICENSE
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/dev/isci/scil/sci_base_state_machine_logger.c 231689 2012-02-14 15:58:49Z jimharris $");
/**
* @file
*
* @brief This file provides the public and protected implementations for the
* state machine logger. The state machine logger will provide debug
* log information on a state machine for each state transition.
*/
#include <dev/isci/scil/sci_base_state_machine_logger.h>
#if defined(SCI_LOGGING)
//******************************************************************************
//* P R O T E C T E D M E T H O D S
//******************************************************************************
/**
* This is the function that is called when the state machine wants to notify
* this observer that there has been a state change.
*
* @param[in] observer The state machine logger that is observing the state
* machine.
* @param[in] subject The state machine that is being observed.
*/
static
void sci_base_state_machine_logger_update(
SCI_BASE_OBSERVER_T *observer,
SCI_BASE_SUBJECT_T *subject
)
{
SCI_BASE_STATE_MACHINE_LOGGER_T *this_observer;
this_observer = (SCI_BASE_STATE_MACHINE_LOGGER_T *)observer;
this_observer->log_function(
sci_base_object_get_logger(this_observer->log_object),
this_observer->log_mask,
"%s 0x%08x %s has transitioned from %d to %d\n",
this_observer->log_object_name,
this_observer->log_object,
this_observer->log_state_machine_name,
this_observer->parent.subject_state,
sci_base_state_machine_get_state((SCI_BASE_STATE_MACHINE_T *)subject)
);
sci_base_state_machine_observer_default_update(
&this_observer->parent.parent, subject
);
}
//******************************************************************************
//* P U B L I C M E T H O D S
//******************************************************************************
/**
* This function will construct the state machine logger and attach it to the
* state machine that is to be observed.
*
* @param[in] this_observer This is the state machine logger object that is
* going to observe the subject state machine.
* @param[in] the_object This is the object that contains the state machine
* being observed it is used to report the address of the object for
* which a state transition has occurred.
* @param[in] the_log_function This is the logging function to be used when a
* state machine transition occurs. Since this is a base object type it
* does not actually know if the logging function is for the core or
* framework.
* @param[in] the_object_name This is the name of the object that contains the
* state machine being observed.
* @param[in] the_state_machine_name This is the name that will be displayed
* in the log string for the state machine being observed.
* @param[in] the_object_mask This is the log object mask used when calling
* the logging function.
*
* @return Nothing
*/
void sci_base_state_machine_logger_construct(
SCI_BASE_STATE_MACHINE_LOGGER_T * this_observer,
SCI_BASE_OBJECT_T * the_object,
SCI_BASE_STATE_MACHINE_LOGGER_LOG_HANDLER_T the_log_function,
char * log_object_name,
char * log_state_machine_name,
U32 log_object_mask
)
{
sci_base_state_machine_observer_construct(&this_observer->parent);
this_observer->log_object = the_object;
this_observer->log_function = the_log_function;
this_observer->log_object_name = log_object_name;
this_observer->log_state_machine_name = log_state_machine_name;
this_observer->log_mask = log_object_mask;
this_observer->parent.parent.update = sci_base_state_machine_logger_update;
}
/**
* This is a helper function that will construct the state machine logger and
* attach it to the state machine that is to be observed.
*
* @param[in] this_observer This is the state machine logger object that is
* going to observe the subject state machine.
* @param[in] the_state_machine This is the state machine that is under
* observation.
* @param[in] the_object This is the object that contains the state machine
* being observed it is used to report the address of the object for
* which a state transition has occurred.
* @param[in] the_log_function This is the logging function to be used when a
* state machine transition occurs. Since this is a base object type it
* does not actually know if the logging function is for the core or
* framework.
* @param[in] the_object_name This is the name of the object that contains the
* state machine being observed.
* @param[in] the_state_machine_name This is the name that will be displayed
* in the log string for the state machine being observed.
* @param[in] the_object_mask This is the log object mask used when calling
* the logging function.
*
* @return Nothing
*/
void sci_base_state_machine_logger_initialize(
SCI_BASE_STATE_MACHINE_LOGGER_T * this_observer,
SCI_BASE_STATE_MACHINE_T * the_state_machine,
SCI_BASE_OBJECT_T * the_object,
SCI_BASE_STATE_MACHINE_LOGGER_LOG_HANDLER_T the_log_function,
char * log_object_name,
char * log_state_machine_name,
U32 log_object_mask
)
{
sci_base_state_machine_logger_construct(
this_observer, the_object,
the_log_function, log_object_name, log_state_machine_name, log_object_mask
);
sci_base_subject_attach_observer(
&the_state_machine->parent, &this_observer->parent.parent
);
}
/**
* This is a helper function that will detach this observer from the state
* machine that is being observerd.
*
* @param[in] this_observer This is the observer to detach from the state
* machine.
* @parame[in] the_state_machine This is the state machine that is no longer
* going to be observed.
*
* @return Nothing
*/
void sci_base_state_machine_logger_deinitialize(
SCI_BASE_STATE_MACHINE_LOGGER_T * this_observer,
SCI_BASE_STATE_MACHINE_T * the_state_machine
)
{
sci_base_subject_detach_observer(
&the_state_machine->parent, &this_observer->parent.parent
);
}
#endif // defined(SCI_LOGGING)