mirror of
https://gitee.com/openharmony/xts_dcts
synced 2024-11-27 01:40:46 +00:00
60 lines
2.2 KiB
C++
60 lines
2.2 KiB
C++
/*
|
||
* Copyright (C) 2022 Huawei Device Co., Ltd.
|
||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||
* you may not use this file except in compliance with the License.
|
||
* You may obtain a copy of the License at
|
||
*
|
||
* http://www.apache.org/licenses/LICENSE-2.0
|
||
*
|
||
* Unless required by applicable law or agreed to in writing, software
|
||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
* See the License for the specific language governing permissions and
|
||
* limitations under the License.
|
||
*/
|
||
|
||
#ifndef SHM_UTILS_H
|
||
#define SHM_UTILS_H
|
||
|
||
#include <cerrno>
|
||
#include <cstdarg>
|
||
#include <cstdint>
|
||
#include <cstdio>
|
||
#include <cstdlib>
|
||
#include <pthread.h>
|
||
#include <securec.h>
|
||
#include <sys/shm.h>
|
||
#include <sys/time.h>
|
||
#include <unistd.h>
|
||
|
||
#define MAX_WAIT_TIMEOUT 10
|
||
#define SHM_SEND_KEY 123456
|
||
#define SHM_RECV_KEY 123466
|
||
|
||
struct shared_use_st {
|
||
int written; // 作为一个标志，非0：表示可读，0表示可写
|
||
char data[1024]; // 记录写入和读取的文本
|
||
};
|
||
|
||
#define LOG(format, ...) \
|
||
do { \
|
||
time_t timeSec; \
|
||
time(&timeSec); \
|
||
struct tm tmRst; \
|
||
localtime_r(&timeSec, &tmRst); \
|
||
char strTime[10]; \
|
||
strftime(strTime, sizeof(strTime), "%H:%M:%S", &tmRst); \
|
||
fprintf(stdout, "[shm-utils] %s " format "\n", strTime, ##__VA_ARGS__); \
|
||
} while (0)
|
||
|
||
int createShm(int key);
|
||
int disconnectShm(void);
|
||
int writeCodeDataToShm(int code, char* buf);
|
||
int waitDataWithCode(char* code, char* data);
|
||
int writeDataToShm(char* buf);
|
||
int deleteShm(void);
|
||
char* Int2String(int num, char* str);
|
||
void initShm(void);
|
||
int readDataFromShm(char* buf);
|
||
int readDataFromShmNoClear(char* buf);
|
||
#endif |