mirror of
https://github.com/wpilibsuite/allwpilib
synced 2026-06-19 00:41:43 +00:00
8f1f64ffb6
Also update copyright to include "and other WPILib contributors" and clarify license referral language to not be restricted to FIRST teams.
65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
// Copyright (c) FIRST and other WPILib contributors.
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// Open Source Software; you can modify and/or share it under the terms of
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// the WPILib BSD license file in the root directory of this project.
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#include <chrono>
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#include <climits>
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#include <cstdio>
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#include <thread>
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#include <support/json.h>
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#include "ntcore.h"
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void callback1(const nt::RpcAnswer& answer) {
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wpi::json params;
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try {
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params = wpi::json::from_cbor(answer.params);
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} catch (wpi::json::parse_error err) {
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std::fputs("could not decode params?\n", stderr);
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return;
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}
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if (!params.is_number()) {
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std::fputs("did not get number\n", stderr);
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return;
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}
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double val = params.get<double>();
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std::fprintf(stderr, "called with %g\n", val);
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answer.PostResponse(wpi::json::to_cbor(val + 1.2));
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}
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int main() {
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auto inst = nt::GetDefaultInstance();
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nt::AddLogger(
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inst,
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[](const nt::LogMessage& msg) {
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std::fputs(msg.message.c_str(), stderr);
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std::fputc('\n', stderr);
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},
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0, UINT_MAX);
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nt::StartServer(inst, "rpc_local.ini", "", 10000);
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auto entry = nt::GetEntry(inst, "func1");
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nt::CreateRpc(entry, nt::StringRef("", 1), callback1);
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std::fputs("calling rpc\n", stderr);
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unsigned int call1_uid = nt::CallRpc(entry, wpi::json::to_cbor(2.0));
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std::string call1_result_str;
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std::fputs("waiting for rpc result\n", stderr);
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nt::GetRpcResult(entry, call1_uid, &call1_result_str);
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wpi::json call1_result;
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try {
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call1_result = wpi::json::from_cbor(call1_result_str);
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} catch (wpi::json::parse_error err) {
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std::fputs("could not decode result?\n", stderr);
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return 1;
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}
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if (!call1_result.is_number()) {
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std::fputs("result is not number?\n", stderr);
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return 1;
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}
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std::fprintf(stderr, "got %g\n", call1_result.get<double>());
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return 0;
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}
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