285 lines
11 KiB
C
285 lines
11 KiB
C
/* dbAccessDefs.h */
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/*****************************************************************
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COPYRIGHT NOTIFICATION
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*****************************************************************
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(C) COPYRIGHT 1993 UNIVERSITY OF CHICAGO
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This software was developed under a United States Government license
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described on the COPYRIGHT_UniversityOfChicago file included as part
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of this distribution.
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**********************************************************************/
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/* $Id$
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*
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* Original Author: Bob Dalesio
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* Current Author: Marty Kraimer
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* Date: 6-1-90
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*
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* Modification Log:
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* -----------------
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* .01 12-18-91 jba Changed caddr_t to void *
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* .02 03-04-92 jba Replaced dbr_value_size with dbrValueSize in dbAccess
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* .03 05-28-92 mrk cleanup
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* .04 08-19-92 jba added prototypes dbCaAddInlink,dbCaAddOutlink
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* .05 08-19-92 jba added prototypes dbCaPutLink,dbCaGetLink
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* .06 02-02-94 mrk added definitions for dbPutNotify
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* .07 03-18-94 mcn added breakpoint codes, fast link protos
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*/
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#ifndef INCdbAccessDefsh
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#define INCdbAccessDefsh
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#include "shareLib.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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epicsShareExtern struct dbBase *pdbbase;
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epicsShareExtern volatile int interruptAccept;
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/* The database field and request types are defined in dbFldTypes.h*/
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/* Data Base Request Options */
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#define DBR_STATUS 0x00000001
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#define DBR_UNITS 0x00000002
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#define DBR_PRECISION 0x00000004
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#define DBR_TIME 0x00000008
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#define DBR_ENUM_STRS 0x00000010
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#define DBR_GR_LONG 0x00000020
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#define DBR_GR_DOUBLE 0x00000040
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#define DBR_CTRL_LONG 0x00000080
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#define DBR_CTRL_DOUBLE 0x00000100
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#define DBR_AL_LONG 0x00000200
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#define DBR_AL_DOUBLE 0x00000400
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/**********************************************************************
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* The next page contains macros for defining requests.
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* As an example the following defines a buffer to accept an array
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* of 10 float values + DBR_STATUS and DBR_TIME options
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*
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* struct {
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* DBRstatus
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* DBRtime
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* float value[10]
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* } buffer;
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*
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* IMPORTANT!! The DBRoptions must be given in the order that they
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* appear in the Data Base Request Options #defines
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*
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* The associated dbGetField call is:
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*
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* long options,number_elements;
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* ...
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* options = DBR_STATUS|DBR_TIME;
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* number_elements = 10;
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* rtnval=dbGetField(paddr,DBR_FLOAT,&buffer,&options,&number_elements);
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*
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* When dbGetField returns:
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* rtnval is error status (0 means success)
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* options has a bit set for each option that was accepted
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* number_elements is actual number of elements obtained
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*
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* The individual items can be refered to by the expressions::
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*
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* buffer.status
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* buffer.severity
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* buffer.err_status
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* buffer.epoch_seconds
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* buffer.nano_seconds
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* buffer.value[i]
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*
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* The following is also a valid declaration:
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*
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* typedef struct {
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* DBRstatus
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* DBRtime
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* float value[10]
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* } MYBUFFER;
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*
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* With this definition you can give definitions such as the following:
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*
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* MYBUFFER *pbuf1;
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* MYBUFFER buf;
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*************************************************************************/
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/* Macros for defining each option */
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#define DBRstatus \
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unsigned short status; /* alarm status */\
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unsigned short severity; /* alarm severity*/\
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unsigned short acks; /* alarm ack severity*/\
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unsigned short ackt; /* Acknowledge transient alarms?*/
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#define DB_UNITS_SIZE 16
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#define DBRunits \
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char units[DB_UNITS_SIZE]; /* units */
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#define DBRprecision \
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long precision; /* number of decimal places*/\
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long field_width; /* field width */
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#define DBRtime \
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TS_STAMP time; /* time stamp*/
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#define DBRenumStrs \
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unsigned long no_str; /* number of strings*/\
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long padenumStrs; /*padding to force 8 byte align*/\
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char strs[DB_MAX_CHOICES][MAX_STRING_SIZE]; /* string values */
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#define DBRgrLong \
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long upper_disp_limit; /*upper limit of graph*/\
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long lower_disp_limit; /*lower limit of graph*/
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#define DBRgrDouble \
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double upper_disp_limit; /*upper limit of graph*/\
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double lower_disp_limit; /*lower limit of graph*/
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#define DBRctrlLong \
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long upper_ctrl_limit; /*upper limit of graph*/\
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long lower_ctrl_limit; /*lower limit of graph*/
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#define DBRctrlDouble \
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double upper_ctrl_limit; /*upper limit of graph*/\
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double lower_ctrl_limit; /*lower limit of graph*/
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#define DBRalLong \
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long upper_alarm_limit;\
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long upper_warning_limit;\
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long lower_warning_limit;\
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long lower_alarm_limit;
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#define DBRalDouble \
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double upper_alarm_limit;\
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double upper_warning_limit;\
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double lower_warning_limit;\
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double lower_alarm_limit;
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/* structures for each option type */
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struct dbr_status {DBRstatus};
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struct dbr_units {DBRunits};
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struct dbr_precision {DBRprecision};
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struct dbr_time {DBRtime};
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struct dbr_enumStrs {DBRenumStrs};
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struct dbr_grLong {DBRgrLong};
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struct dbr_grDouble {DBRgrDouble};
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struct dbr_ctrlLong {DBRctrlLong};
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struct dbr_ctrlDouble {DBRctrlDouble};
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struct dbr_alLong {DBRalLong};
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struct dbr_alDouble {DBRalDouble};
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/* sizes for each option structure */
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#define dbr_status_size sizeof(struct dbr_status)
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#define dbr_units_size sizeof(struct dbr_units)
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#define dbr_precision_size sizeof(struct dbr_precision)
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#define dbr_time_size sizeof(struct dbr_time)
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#define dbr_enumStrs_size sizeof(struct dbr_enumStrs)
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#define dbr_grLong_size sizeof(struct dbr_grLong)
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#define dbr_grDouble_size sizeof(struct dbr_grDouble)
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#define dbr_ctrlLong_size sizeof(struct dbr_ctrlLong)
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#define dbr_ctrlDouble_size sizeof(struct dbr_ctrlDouble)
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#define dbr_alLong_size sizeof(struct dbr_alLong)
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#define dbr_alDouble_size sizeof(struct dbr_alDouble)
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#ifndef INCerrMdefh
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#include "errMdef.h"
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#endif
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#define S_db_notFound (M_dbAccess| 1) /*Process Variable Not Found*/
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#define S_db_badDbrtype (M_dbAccess| 3) /*Illegal Database Request Type*/
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#define S_db_noMod (M_dbAccess| 5) /*Attempt to modify noMod field*/
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#define S_db_badLset (M_dbAccess| 7) /*Illegal Lock Set*/
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#define S_db_precision (M_dbAccess| 9) /*get precision failed */
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#define S_db_onlyOne (M_dbAccess|11) /*Only one element allowed*/
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#define S_db_badChoice (M_dbAccess|13) /*Illegal choice*/
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#define S_db_badField (M_dbAccess|15) /*Illegal field value*/
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#define S_db_lsetLogic (M_dbAccess|17) /*Logic error generating lock sets*/
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#define S_db_noRSET (M_dbAccess|31) /*missing record support entry table*/
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#define S_db_noSupport (M_dbAccess|33) /*RSET routine not defined*/
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#define S_db_BadSub (M_dbAccess|35) /*Subroutine not found*/
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/*!!!! Do not change next two lines without changing src/rsrv/server.h!!!!!!!!*/
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#define S_db_Pending (M_dbAccess|37) /*Request is pending*/
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#define S_db_Blocked (M_dbAccess|39) /*Request is Blocked*/
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#define S_db_putDisabled (M_dbAccess|41) /*putFields are disabled*/
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#define S_db_bkptSet (M_dbAccess|53) /*Breakpoint already set*/
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#define S_db_bkptNotSet (M_dbAccess|55) /*No breakpoint set in record*/
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#define S_db_notStopped (M_dbAccess|57) /*Record not stopped*/
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#define S_db_errArg (M_dbAccess|59) /*Error in argument*/
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#define S_db_bkptLogic (M_dbAccess|61) /*Logic error in breakpoint routine*/
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#define S_db_cntSpwn (M_dbAccess|63) /*Cannot spawn dbContTask*/
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#define S_db_cntCont (M_dbAccess|65) /*Cannot resume dbContTask*/
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#define S_db_noMemory (M_dbAccess|66) /*unable to allocate data structure from pool*/
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/* Global Database Access Routines*/
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#define dbGetLink(PLNK,DBRTYPE,PBUFFER,OPTIONS,NREQUEST) \
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(((((PLNK)->type == CONSTANT)&&(!(NREQUEST))) ||\
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(! (((PLNK)->type == DB_LINK) || ((PLNK)->type == CA_LINK)) ))\
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? 0\
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: dbGetLinkValue((PLNK),(DBRTYPE), \
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(void *)(PBUFFER),(OPTIONS),(NREQUEST)))
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#define dbPutLink(PLNK,DBRTYPE,PBUFFER,NREQUEST) \
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((((PLNK)->type == CONSTANT) ||\
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(! (((PLNK)->type == DB_LINK) || ((PLNK)->type == CA_LINK)) ))\
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? 0\
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: dbPutLinkValue((PLNK),(DBRTYPE),(void *)(PBUFFER),(NREQUEST)))
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#define dbGetPdbAddrFromLink(PLNK) \
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(\
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((PLNK)->type != DB_LINK) \
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? 0\
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: (((DBADDR*)((PLNK)->value.pv_link.pvt))) \
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)
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epicsShareFunc struct rset * epicsShareAPI dbGetRset(struct dbAddr *paddr);
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epicsShareFunc long epicsShareAPI dbPutAttribute(
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char *recordTypename,char *name,char*value);
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epicsShareFunc int epicsShareAPI dbIsValueField(struct dbFldDes *pdbFldDes);
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epicsShareFunc int epicsShareAPI dbGetFieldIndex(struct dbAddr *paddr);
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epicsShareFunc long epicsShareAPI dbGetNelements(
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struct link *plink,long *nelements);
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epicsShareFunc int epicsShareAPI dbIsLinkConnected(struct link *plink);
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epicsShareFunc int epicsShareAPI dbGetLinkDBFtype(struct link *plink);
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epicsShareFunc long epicsShareAPI dbScanLink(
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struct dbCommon *pfrom, struct dbCommon *pto);
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epicsShareFunc long epicsShareAPI dbScanPassive(
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struct dbCommon *pfrom,struct dbCommon *pto);
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epicsShareFunc void epicsShareAPI dbScanFwdLink(struct link *plink);
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epicsShareFunc long epicsShareAPI dbProcess(struct dbCommon *precord);
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epicsShareFunc long epicsShareAPI dbNameToAddr(
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const char *pname,struct dbAddr *);
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epicsShareFunc long epicsShareAPI dbGetLinkValue(
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struct link *,short dbrType,void *pbuffer,long *options,long *nRequest);
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epicsShareFunc long epicsShareAPI dbGetField(
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struct dbAddr *,short dbrType,void *pbuffer,long *options,
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long *nRequest,void *pfl);
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epicsShareFunc long epicsShareAPI dbGet(
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struct dbAddr *,short dbrType,void *pbuffer,long *options,
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long *nRequest,void *pfl);
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epicsShareFunc long epicsShareAPI dbPutLinkValue(
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struct link *,short dbrType,const void *pbuffer,long nRequest);
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epicsShareFunc long epicsShareAPI dbPutField(
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struct dbAddr *,short dbrType,const void *pbuffer,long nRequest);
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epicsShareFunc long epicsShareAPI dbPut(
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struct dbAddr *,short dbrType,const void *pbuffer,long nRequest);
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/* various utility routines */
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epicsShareFunc long epicsShareAPI dbGetControlLimits(
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struct link *plink,double *low, double *high);
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epicsShareFunc long epicsShareAPI dbGetGraphicLimits(
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struct link *plink,double *low, double *high);
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epicsShareFunc long epicsShareAPI dbGetAlarmLimits(
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struct link *plink,double *lolo, double *low, double *high, double *hihi);
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epicsShareFunc long epicsShareAPI dbGetPrecision(
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struct link *plink,short *precision);
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epicsShareFunc long epicsShareAPI dbGetUnits(
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struct link *plink,char *units,int unitsSize);
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epicsShareFunc long epicsShareAPI dbGetSevr(
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struct link *plink,short *severity);
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epicsShareFunc long epicsShareAPI dbGetTimeStamp(
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struct link *plink,TS_STAMP *pstamp);
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typedef void(*SPC_ASCALLBACK)(struct dbCommon *);
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/*dbSpcAsRegisterCallback called by access security */
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epicsShareFunc void epicsShareAPI dbSpcAsRegisterCallback(SPC_ASCALLBACK func);
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epicsShareFunc long epicsShareAPI dbBufferSize(
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short dbrType,long options,long nRequest);
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epicsShareFunc long epicsShareAPI dbValueSize(short dbrType);
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epicsShareFunc int epicsShareAPI dbLoadDatabase(
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char *filename,char *path,char *substitutions);
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epicsShareFunc int epicsShareAPI dbLoadRecords(
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char* pfilename, char* substitutions);
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#ifdef __cplusplus
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}
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#endif
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#endif /*INCdbAccessDefsh*/
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