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58 lines
2.6 KiB
C
Executable File
58 lines
2.6 KiB
C
Executable File
/*
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* Copyright (c) 2010, Kelvin Lawson. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. No personal names or organizations' names associated with the
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* Atomthreads project may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE ATOMTHREADS PROJECT AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __ATOM_QUEUE_H
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#define __ATOM_QUEUE_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct atom_queue
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{
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ATOM_TCB * putSuspQ; /* Queue of threads waiting to send */
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ATOM_TCB * getSuspQ; /* Queue of threads waiting to receive */
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uint8_t * buff_ptr; /* Pointer to queue data area */
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uint32_t unit_size; /* Size of each message */
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uint32_t max_num_msgs; /* Max number of storable messages */
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uint32_t insert_index; /* Next byte index to insert into */
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uint32_t remove_index; /* Next byte index to remove from */
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uint32_t num_msgs_stored;/* Number of messages stored */
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} ATOM_QUEUE;
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extern uint8_t atomQueueCreate (ATOM_QUEUE *qptr, uint8_t *buff_ptr, uint32_t unit_size, uint32_t max_num_msgs);
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extern uint8_t atomQueueDelete (ATOM_QUEUE *qptr);
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extern uint8_t atomQueueGet (ATOM_QUEUE *qptr, int32_t timeout, uint8_t *msgptr);
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extern uint8_t atomQueuePut (ATOM_QUEUE *qptr, int32_t timeout, uint8_t *msgptr);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ATOM_QUEUE_H */
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