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clean up

develop
Tuan PM 2015-01-13 18:58:40 +07:00
rodzic 1995cb812a
commit 8c180fd05b
2 zmienionych plików z 0 dodań i 109 usunięć
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63
user/str_queue.c
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/* str_queue.c
*
* Copyright (c) 2014-2015, Tuan PM <tuanpm at live dot com>
* 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.
* * Neither the name of Redis nor the names of its contributors may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* 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 "str_queue.h"
#include "user_interface.h"
#include "osapi.h"
#include "os_type.h"
#include "mem.h"
void QUEUE_Init(STR_QUEUE *queue, int strLen, int maxString)
{
queue->buf = (uint8_t*)os_zalloc(strLen*maxString);
queue->size = maxString;
queue->strLen = strLen;
queue->pr = queue->pw = 0;
}
int32_t QUEUE_Puts(STR_QUEUE *queue, char* str)
{
uint32_t next = (queue->pw + 1)%queue->size;
if(next == queue->pr) return -1;
os_strcpy(queue->buf + queue->pw*queue->strLen, str);
queue->pw = next;
return 0;
}
int32_t QUEUE_Gets(STR_QUEUE *queue, char* str)
{
if(queue->pr == queue->pw) return -1;
os_strcpy(str, queue->buf + queue->pr*queue->strLen);
queue->pr = (queue->pr + 1) % queue->size;
return 0;
}
int32_t QUEUE_IsEmpty(STR_QUEUE *queue)
{
return (queue->pr == queue->pw);
}

46
user/str_queue.h
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/* str_queue.h --
*
* Copyright (c) 2014-2015, Tuan PM <tuanpm at live dot com>
* 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.
* * Neither the name of Redis nor the names of its contributors may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* 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.
*/
#ifndef USER_STR_QUEUE_H_
#define USER_STR_QUEUE_H_
#include "os_type.h"
typedef struct {
uint8_t *buf;
uint32_t pr;
uint32_t pw;
uint32_t size;
uint32_t strLen;
} STR_QUEUE;
void QUEUE_Init(STR_QUEUE *queue, int strLen, int strSize);
int32_t QUEUE_Puts(STR_QUEUE *queue, char* str);
int32_t QUEUE_Gets(STR_QUEUE *queue, char* str);
int32_t QUEUE_IsEmpty(STR_QUEUE *queue);
#endif /* USER_STR_QUEUE_H_ */