Files
pvxs/ioc/group.cpp
T
Michael Davidsaver d7e49605cc threadOnce further reduce boilerplate
also latch failure
2023-09-04 16:17:25 +02:00

111 lines
3.1 KiB
C++

/*
* Copyright - See the COPYRIGHT that is included with this distribution.
* pvxs is distributed subject to a Software License Agreement found
* in file LICENSE that is included with this distribution.
*
* Author George S. McIntyre <george@level-n.com>, 2023
*
*/
#include <string>
#include <sstream>
#include <epicsThread.h>
#include <cantProceed.h>
#include "group.h"
#include "utilpvt.h"
namespace pvxs {
namespace ioc {
static
IOCGroupConfig* configInstance;
static
void onceConfigInstance()
{
try {
configInstance = new IOCGroupConfig;
} catch (std::exception& e) {
cantProceed("ERROR %s : %s\n", __func__, e.what());
}
}
IOCGroupConfig& IOCGroupConfig::instance()
{
threadOnce<&onceConfigInstance>();
return *configInstance;
}
void IOCGroupConfigCleanup()
{
if(configInstance) {
epicsGuard<epicsMutex> G(configInstance->groupMapMutex);
configInstance->groupMap.clear();
configInstance->groupConfigFiles.clear();
}
}
/**
* Show details for this group.
* This displays information to the terminal and is to be used by the IOC command shell
*
* @param level the level of detail to show.
* 0 group names only,
* 1 group names and top level information,
* 2 everything
*/
void Group::show(int level) const {
// no locking as we only print things which are const after initialization
// Group field information
printf(" Atomic Get/Put:%s Atomic Members:%ld\n",
(atomicPutGet ? "yes" : "no"),
fields.size());
// If we need to show detailed information then iterate through all fields showing details
if (level > 1) {
for (auto& field: fields) {
// " grp.fld <meta> id=foo chan=pv:name.VAL\n"
printf(" %s\t<%s>%s%s%s%s%s\n",
field.fieldName.to_string().c_str(),
MappingInfo::name(field.info.type),
field.id.empty() ? "" : " id=",
field.id.empty() ? "" : field.id.c_str(),
field.value ? " chan=" : "",
field.value ? dbChannelName(field.value) : "",
field.triggers.empty() ? "" : " has triggers");
if(level > 2) {
for(auto& trig : field.triggers) {
bool found = false;
for(auto& field2 : fields) {
found |= &field2 == trig; // cross-check pointer validity
}
if(!found)
printf("ERROR inconsistent field triggers!!!\n");
printf(" %s\n", trig->fieldName.to_string().c_str());
}
}
}
}
}
/**
* De-reference the field in the current group by providing the field name.
*
* @param fieldName of the field to be de-referenced
* @return the de-referenced field from the set of fields
*/
Field& Group::operator[](const std::string& fieldName) {
for(auto& field : fields) {
if(field.fullName == fieldName)
return field;
}
throw std::logic_error(SB()<<"field not found in group: \"" << fieldName << "\"");
}
} // pvxs
} // ioc