117 lines
4.3 KiB
C++
117 lines
4.3 KiB
C++
/* pvDataMain.cpp */
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/* Author: Marty Kraimer Date: 17MAR2000 */
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#include <stddef.h>
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#include <stdlib.h>
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#include <stddef.h>
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#include <string.h>
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#include <stdio.h>
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#include "pvData.h"
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using namespace epics::pvData;
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using namespace std;
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static void dumpString(char const prefix[],string const* value) {
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printf("%s\n value %p",prefix,value);
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// Just convert value to a pointer
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int *pvalue = (int *)value;
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// Now get what pvalue points to. It is the cstr.
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char * cstr = (char *)*pvalue;
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if(cstr==0) { printf("\n"); return; }
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printf(" *value %p",cstr);
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int * stuff = (int *)*pvalue;
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//At least on my implementation the following is true
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stuff -= 3;
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printf(" length %d capacity %d refcount %d str %s\n",
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stuff[0],stuff[1],stuff[2],cstr);
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}
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int main(int argc,char *argv[])
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{
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FieldCreate * pfieldCreate = getFieldCreate();
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std::string valueName("value");
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std::string* myString= new std::string("type ");
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int numberFields = 2;
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FieldConstPtr fields[numberFields];
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std::string name0("high");
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std::string name1("low");
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dumpString("high",&name0);
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dumpString("low",&name1);
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printf("\ncreate field0 and field1\n");
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fields[0] = pfieldCreate->createScalar(&name0,pvDouble);
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fields[1] = pfieldCreate->createScalar(&name1,pvDouble);
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printf("referenceCounts field0 %d field1 %d\n",
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fields[0]->getReferenceCount(),
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fields[1]->getReferenceCount());
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dumpString("high",&name0);
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dumpString("low",&name1);
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printf("\ncreate scalarArray");
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std::string scalarArrayName("scalarArray");
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ScalarArrayConstPtr pscalarArray = pfieldCreate->createScalarArray(
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&scalarArrayName,pvDouble);
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myString->clear();
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pscalarArray->toString(myString);
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printf("%s\n",myString->c_str());
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printf("referenceCount pscalarArray %d\n", pscalarArray->getReferenceCount());
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dumpString("scalarArray",&scalarArrayName);
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pscalarArray->incReferenceCount();
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printf("after incReferenceCounnt referenceCount pscalarArray %d\n",
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pscalarArray->getReferenceCount());
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dumpString("high",&name0);
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pscalarArray->decReferenceCount();
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dumpString("after decReferenceCount scalarArray",&scalarArrayName);
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printf("\ncreate structure\n");
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StructureConstPtr pstructure = pfieldCreate->createStructure(
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&valueName,numberFields,fields);
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myString->clear();
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pstructure->toString(myString);
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printf("%s\n",myString->c_str());
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FieldConstPtr pfield = pstructure;
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myString->clear();
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pfield->toString(myString);
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printf("as Field\n%s\n",myString->c_str());
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printf("referenceCounts pfield %d field0 %d field1 %d\n",
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pfield->getReferenceCount(),
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fields[0]->getReferenceCount(),
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fields[1]->getReferenceCount());
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dumpString("high",&name0);
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dumpString("low",&name1);
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pfield->incReferenceCount();
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pfield->incReferenceCount();
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printf("after incReferenceCounter twice referenceCounts pfield %d field0 %d field1 %d\n",
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pfield->getReferenceCount(),
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fields[0]->getReferenceCount(),
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fields[1]->getReferenceCount());
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dumpString("high",&name0);
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dumpString("low",&name1);
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pfield->decReferenceCount();
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printf("after decReferenceCount referenceCounts pfield %d field0 %d field1 %d\n",
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pfield->getReferenceCount(),
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fields[0]->getReferenceCount(),
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fields[1]->getReferenceCount());
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dumpString("high",&name0);
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dumpString("low",&name1);
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StructureArrayConstPtr pstructureArray = pfieldCreate->createStructureArray(
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&valueName,pstructure);
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pstructureArray->incReferenceCount();
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printf("after createStructureArray referenceCounts pstructureArray %d pfield %d field0 %d field1 %d\n",
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pstructureArray->getReferenceCount(),
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pfield->getReferenceCount(),
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fields[0]->getReferenceCount(),
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fields[1]->getReferenceCount());
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pstructureArray->decReferenceCount();
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printf("after structureArray decReferenceCount referenceCounts pfield %d field0 %d field1 %d\n",
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pfield->getReferenceCount(),
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fields[0]->getReferenceCount(),
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fields[1]->getReferenceCount());
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dumpString("high",&name0);
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dumpString("low",&name1);
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printf("field recReferenceCount\n");
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pfield->decReferenceCount();
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dumpString("high",&name0);
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dumpString("low",&name1);
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return(0);
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}
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