Files
allwpilib/glass/src/libnt/native/cpp/NTSubsystem.cpp
Peter Johnson b2c3b2dd8e Use std::string_view and fmtlib across all libraries (#3402)
- Twine, StringRef, Format, and NativeFormatting have been removed
- Logging now uses fmtlib style formatting
- Nearly all uses of wpi::outs/errs have been replaced with fmt::print() or
std::puts()/std::fputs() (for unformatted strings).
- A wpi/fmt/raw_ostream.h header has been added to enable
fmt::print() with wpi::raw_ostream
2021-06-06 16:13:58 -07:00

46 lines
1.5 KiB
C++

// Copyright (c) FIRST and other WPILib contributors.
// Open Source Software; you can modify and/or share it under the terms of
// the WPILib BSD license file in the root directory of this project.
#include "glass/networktables/NTSubsystem.h"
#include <fmt/format.h>
using namespace glass;
NTSubsystemModel::NTSubsystemModel(std::string_view path)
: NTSubsystemModel(nt::GetDefaultInstance(), path) {}
NTSubsystemModel::NTSubsystemModel(NT_Inst instance, std::string_view path)
: m_nt(instance),
m_name(m_nt.GetEntry(fmt::format("{}/.name", path))),
m_defaultCommand(m_nt.GetEntry(fmt::format("{}/.default", path))),
m_currentCommand(m_nt.GetEntry(fmt::format("{}/.command", path))) {
m_nt.AddListener(m_name);
m_nt.AddListener(m_defaultCommand);
m_nt.AddListener(m_currentCommand);
}
void NTSubsystemModel::Update() {
for (auto&& event : m_nt.PollListener()) {
if (event.entry == m_name) {
if (event.value && event.value->IsString()) {
m_nameValue = event.value->GetString();
}
} else if (event.entry == m_defaultCommand) {
if (event.value && event.value->IsString()) {
m_defaultCommandValue = event.value->GetString();
}
} else if (event.entry == m_currentCommand) {
if (event.value && event.value->IsString()) {
m_currentCommandValue = event.value->GetString();
}
}
}
}
bool NTSubsystemModel::Exists() {
return m_nt.IsConnected() &&
nt::GetEntryType(m_defaultCommand) != NT_UNASSIGNED;
}