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10 * it under the terms of version 2 of the GNU General Public License as
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13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
18 * You should have received a copy of the GNU General Public License
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20 * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
21 * The full GNU General Public License is included in this distribution
22 * in the file called LICENSE.GPL.
26 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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53 #include <sys/cdefs.h>
54 __FBSDID("$FreeBSD$");
59 * @brief This file provides the implementation for the observer role
60 * for a state machine. A state machine observer is notified when
61 * the state machine changes states.
64 #include <dev/isci/scil/sci_base_state_machine.h>
65 #include <dev/isci/scil/sci_base_state_machine_observer.h>
67 #if defined(SCI_LOGGING)
69 #define SCI_BASE_INVALID_SUBJECT_STATE 0xFFFF
71 //******************************************************************************
72 //* P R O T E C T E D M E T H O D S
73 //******************************************************************************
75 void sci_base_state_machine_observer_default_update(
76 SCI_BASE_OBSERVER_T *this_observer,
77 SCI_BASE_SUBJECT_T *the_subject
80 SCI_BASE_STATE_MACHINE_OBSERVER_T *state_machine_observer;
82 state_machine_observer = (SCI_BASE_STATE_MACHINE_OBSERVER_T *)this_observer;
84 state_machine_observer->subject_state =
85 sci_base_state_machine_get_state((SCI_BASE_STATE_MACHINE_T *)the_subject);
88 // ---------------------------------------------------------------------------
90 void sci_base_state_machine_observer_construct(
91 SCI_BASE_STATE_MACHINE_OBSERVER_T *this_observer
94 this_observer->parent.update = sci_base_state_machine_observer_default_update;
96 this_observer->subject_state = SCI_BASE_INVALID_SUBJECT_STATE;
99 #endif // defined(SCI_LOGGING)