84 lines
3.5 KiB
C
84 lines
3.5 KiB
C
/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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#ifndef __THREAD_IPC_H__
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#define __THREAD_IPC_H__
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#define SUB_FRAME_LENGTH 7680
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#define FRAME_LENGTH 76800
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#define UE_UL_DELAY 6 /*设置上行组帧在同步时钟基础上的延时（子帧个数）*/
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#define UE_UL_SEND_DELAY 6 /*上行发送子帧号在接收子帧时间戳上的延时（子帧个数）*/
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#define BUFFERMAX 5 /*环形缓冲区个数*/
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#define LOWBUFFER 3 /*环形缓冲区下限, 不能为0*/
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#define HIGHBUFFER 4 /*环形缓冲区上限*/
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typedef struct {
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long long subframe_num; /*子帧编号*/
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int buffer[SUB_FRAME_LENGTH * 2]; /*一子帧数据*/
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} buffer_t;
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typedef struct {
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int packet_num; /*环形缓冲区数据包计数器，表示环形缓冲区有效数据包个数*/
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int isfull; /*标记环形缓冲区有效数据包是否达到上限标志*/
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int isempty; /*标记环形缓冲区有效数据包是否达到下限标志*/
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pthread_mutex_t buffer_mutex; /*环形缓冲区操作保护锁*/
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pthread_cond_t full_cond; /*环形缓冲区上限条件变量,配合isfull使用 */
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pthread_cond_t empty_cond; /*环形缓冲区下限条件变量,配合isempty使用*/
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buffer_t loop_buf[BUFFERMAX]; /*环形缓冲区*/
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} loop_buffer_op_t;
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typedef struct {
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int decoding_subframe_num; /*待解码子帧的编号*/
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pthread_mutex_t buffer_mutex; /*对sync_buffer临界区的保护锁*/
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int sync_buffer[SUB_FRAME_LENGTH * 10]; /*同步线程与下行解码线程数据共享缓冲区*/
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} sync_buffer_t;
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typedef struct {
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unsigned int rx_timestamp; /*接收数据包第一个sample时间戳*/
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unsigned int tx_timestamp; /*待发送数据包的时间戳*/
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unsigned long long current_subframe; /*当前子帧编号*/
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int ue_sync_state; /*表示UE是否在同步状态，0表示失同步，1表示同步*/
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pthread_mutex_t sync_mutex; /*根据ue_sync_state标志，唤醒组帧线程*/
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pthread_mutex_t ul_send_mutex; /*用于sync线程唤醒发送线程发送数据*/
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pthread_mutex_t dl_decode_mutex;/*下行解码保护锁，用于sync线程唤醒解码线程解码*/
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loop_buffer_op_t loop_buffer;
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sync_buffer_t sync_buffer;
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} g_thread_ipc_t;
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void loop_buffer_reset(buffer_t *loop_buf);
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int thread_ipc_init(void);
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int thread_ipc_deinit(void);
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int set_thread_attr(pthread_attr_t *attr, int policy, int priority, int cpuid);
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int find_subframe_num(unsigned long long current_subframe_num, buffer_t *buf, int *flag);
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int ue_unsync_thread_ipc_reset(void);
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extern g_thread_ipc_t thread_ipc;
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#endif
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