Experimental Physics and
Industrial Control System

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<== Date ==>		<== Thread ==>

Subject:	Re: error on the IOC shell for asyn driver
From:	"Vishnu Patel" <[email protected]>
To:	"Mark Rivers " <[email protected]>
Cc:	techtalk <[email protected]>
Date:	4 Mar 2015 08:30:57 -0000

Dear Mark,

I tried to use

pasynTrace->setTraceMask(pasynUser, 0)

in the static asynStatus connect(void *pvt, asynUser *pasynUser) and in the In32 interface function.

but still the messages are continuously loaded on the IOC shell.

(1) where in the driver i have to use pasynTrace->setTraceMask(pasynUser, 0)

or asynSetTraceMask()

(2) and want to know is these message are displaying because of the port is not connected and record support is trying to access the port?

I checked that if i put asynSetTraceMask() after iocInit, it is stopping the displaying messages. But if i put before iocInit it is continuously displaying the messages.

So in my asyn based driver, where i should use this function so it execute after iocInit?

Thank you

Vishnu

From: Mark Rivers <[email protected]>
Sent: Wed, 04 Mar 2015 02:50:33
To: "'[email protected]'" <[email protected]>
Cc: techtalk <[email protected]>
Subject: Re: error on the IOC shell for asyn driver

Yes, your driver can access the asynTrace facility which is defined in asynDriver.h as:

typedef struct asynTrace {

/* lock/unlock are only necessary if caller performs I/O other than */

/* by calling asynTrace methods */

asynStatus (*lock)(asynUser *pasynUser);

asynStatus (*unlock)(asynUser *pasynUser);

asynStatus (*setTraceMask)(asynUser *pasynUser,int mask);

int (*getTraceMask)(asynUser *pasynUser);

asynStatus (*setTraceIOMask)(asynUser *pasynUser,int mask);

int (*getTraceIOMask)(asynUser *pasynUser);

asynStatus (*setTraceInfoMask)(asynUser *pasynUser,int mask);

int (*getTraceInfoMask)(asynUser *pasynUser);

asynStatus (*setTraceFile)(asynUser *pasynUser,FILE *fp);

FILE *(*getTraceFile)(asynUser *pasynUser);

asynStatus (*setTraceIOTruncateSize)(asynUser *pasynUser,size_t size);

size_t (*getTraceIOTruncateSize)(asynUser *pasynUser);

#if defined(__GNUC__) && (__GNUC__ < 3)

/* GCC 2.95 does not allow EPICS_PRINTF_STYLE on function pointers */

int (*print)(asynUser *pasynUser,int reason, const char *pformat, ...);

int (*printSource)(asynUser *pasynUser,int reason, const char *fileName, int line, const char *pformat, ...);

int (*vprint)(asynUser *pasynUser,int reason, const char *pformat, va_list pvar);

int (*vprintSource)(asynUser *pasynUser,int reason, const char *file, int line, const char *pformat, va_list pvar);

int (*printIO)(asynUser *pasynUser,int reason,

const char *buffer, size_t len,const char *pformat, ...);

int (*printIOSource)(asynUser *pasynUser,int reason,

const char *buffer, size_t len,const char *file, int line, const char *pformat, ...);

int (*vprintIO)(asynUser *pasynUser,int reason,

const char *buffer, size_t len,const char *pformat, va_list pvar);

int (*vprintIOSource)(asynUser *pasynUser,int reason,

const char *buffer, size_t len,const char *file, int line, const char *pformat, va_list pvar);

#else

int (*print)(asynUser *pasynUser,int reason, const char *pformat, ...) EPICS_PRINTF_STYLE(3,4);

int (*printSource)(asynUser *pasynUser,int reason, const char *fileName, int line, const char *pformat, ...) EPICS_PRINTF_STYLE(5,6);

int (*vprint)(asynUser *pasynUser,int reason, const char *pformat, va_list pvar) EPICS_PRINTF_STYLE(3,0);

int (*vprintSource)(asynUser *pasynUser,int reason, const char *file, int line, const char *pformat, va_list pvar) EPICS_PRINTF_STYLE(5,0);

int (*printIO)(asynUser *pasynUser,int reason,

const char *buffer, size_t len,const char *pformat, ...) EPICS_PRINTF_STYLE(5,6);

int (*printIOSource)(asynUser *pasynUser,int reason,

const char *buffer, size_t len,const char *file, int line, const char *pformat, ...) EPICS_PRINTF_STYLE(7,8);

int (*vprintIO)(asynUser *pasynUser,int reason,

const char *buffer, size_t len,const char *pformat, va_list pvar) EPICS_PRINTF_STYLE(5,0);

int (*vprintIOSource)(asynUser *pasynUser,int reason,

const char *buffer, size_t len,const char *file, int line, const char *pformat, va_list pvar) EPICS_PRINTF_STYLE(7,0);

#endif

}asynTrace;

epicsShareExtern asynTrace *pasynTrace;

So your driver can just call:

pasynTrace->setTraceMask(pasynUser, mask)

Mark

From: [email protected] [mailto:[email protected]]
Sent: Tuesday, March 03, 2015 3:09 PM
To: Mark Rivers
Cc: techtalk
Subject: Re: error on the IOC shell for asyn driver

Hi Mark,

Thank you.

One more question.

I am EPICS driver developer. Is there any way in the asynDriver where i can set this in my driver so that even application developer forget to set asynSetTraceMask in the application st.cmd, these error message can be stopped by driver?

Thank you

Vishnu

From: Mark Rivers <[email protected]>
Sent: Wed, 04 Mar 2015 01:56:01
To: 'Vishnu Patel' <[email protected]>, "techtalk " <[email protected]>
Subject: Re: error on the IOC shell for asyn driver

Hi Vishnu,

Type the following command at the iocsh prompt, or include it in your startup script if you know the port will not be connected:

asynSetTraceMask <port name> 0 0

Mark

From: [email protected] [mailto:[email protected]] On Behalf Of Vishnu Patel
Sent: Tuesday, March 03, 2015 2:17 PM
To: techtalk
Subject: error on the IOC shell for asyn driver

Hi,

In my asyn based driver while the port is not connected all the scanning records are throwing an errors

<PV NAME> devAsynInt32 queueRequest port <port name> not connected

it is same for all asyn interfaces.

How i can stop error messages on the IOC shell while port is not connected?

Thank you

Vishnu

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Replies:: RE: error on the IOC shell for asyn driver Mark Rivers

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ANJ, 16 Dec 2015

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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System