mirror of
https://gitee.com/js-yhsec/energy_storage.git
synced 2026-05-28 03:09:24 +08:00
83 lines
3.4 KiB
C
83 lines
3.4 KiB
C
|
/***************************************************************************
|
||
|
|
rldataacquisitionprovider.h - description
|
||
|
|
-------------------
|
||
|
|
begin : Mon Sep 03 2007
|
||
|
|
copyright : (C) 2007 by pvbrowser
|
||
|
|
email : lehrig@t-online.de
|
||
|
|
***************************************************************************/
|
||
|
|
|
||
|
|
/***************************************************************************
|
||
|
|
* *
|
||
|
|
* This library is free software; you can redistribute it and/or modify *
|
||
|
|
* it under the terms of the GNU LESSER GENERAL PUBLIC LICENSE as *
|
||
|
|
* published by the Free Software Foundation *
|
||
|
|
* *
|
||
|
|
***************************************************************************/
|
||
|
|
#ifndef _RL_DAQ_PROVIDER_H_
|
||
|
|
#define _RL_DAQ_PROVIDER_H_
|
||
|
|
|
||
|
|
#include "rldefine.h"
|
||
|
|
#include "rlsharedmemory.h"
|
||
|
|
|
||
|
|
/*! <pre>
|
||
|
|
This class is usefull to implement your own data acquisition according to the pvbrowser principle.
|
||
|
|
It is used within pvb/template/dataacquisition/client/data_acquisition_provider_template.cpp
|
||
|
|
Starting from there you can implement your data acquisition.
|
||
|
|
</pre> */
|
||
|
|
class rlDataAcquisitionProvider
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
// shared memory header
|
||
|
|
typedef struct
|
||
|
|
{
|
||
|
|
char ident[4]; // must be "daq"
|
||
|
|
int maxItemNameLength; // maximum length of an item name
|
||
|
|
int maxNameLength; // maximum length of the item value
|
||
|
|
int numItems; // number of items in shared memory
|
||
|
|
int readErrorCount; // 0...65536 incremented by each read error
|
||
|
|
int writeErrorCount; // 0...65536 incremented by each write error
|
||
|
|
int lifeCounter; // 0...65536 incremented each cycle
|
||
|
|
int spare[7]; // for future use
|
||
|
|
char cspare[32]; // for future use
|
||
|
|
}SHM_HEADER;
|
||
|
|
|
||
|
|
enum DAQ_PROVIDER_ENUM
|
||
|
|
{
|
||
|
|
DAQ_PROVIDER_ERROR = 256*256*128
|
||
|
|
};
|
||
|
|
|
||
|
|
#ifdef RLWIN32
|
||
|
|
rlDataAcquisitionProvider(int maxNameLength=31, const char *shared_memory="c:\\automation\\shm\\dataacquisition.shm", long shared_memory_size=65536);
|
||
|
|
#else
|
||
|
|
rlDataAcquisitionProvider(int maxNameLength=31, const char *shared_memory="/srv/automation/shm/dataacquisition.shm", long shared_memory_size=65536);
|
||
|
|
#endif
|
||
|
|
virtual ~rlDataAcquisitionProvider();
|
||
|
|
int readItemList(const char *filename); // return DAQ_PROVIDER_ERROR | num_items
|
||
|
|
const char *firstItem();
|
||
|
|
const char *nextItem();
|
||
|
|
const char *stringValue(const char *variable);
|
||
|
|
int intValue(const char *variable);
|
||
|
|
float floatValue(const char *variable);
|
||
|
|
int setStringValue(const char *variable, const char *value);
|
||
|
|
int setIntValue(const char *variable, int value);
|
||
|
|
int setFloatValue(const char *variable, float value);
|
||
|
|
int readErrorCount();
|
||
|
|
int writeErrorCount();
|
||
|
|
int lifeCounter();
|
||
|
|
int setReadErrorCount(int count);
|
||
|
|
int setWriteErrorCount(int count);
|
||
|
|
int setLifeCounter(int count);
|
||
|
|
int shmStatus(); // 0 if shared memory is ok | DAQ_PROVIDER_ERROR if shared memory is not ok
|
||
|
|
int setAllowAddValues(int allow, int maxItemNameLength);
|
||
|
|
|
||
|
|
private:
|
||
|
|
SHM_HEADER *shmheader;
|
||
|
|
char *shmvalues;
|
||
|
|
int current_item, allow_add_values;
|
||
|
|
rlSharedMemory *shm;
|
||
|
|
long sharedMemorySize;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|