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Eliminate std::function: fn-pointer callbacks, per-test test_state structs, udp.cpp with link-time udp::client::handler, udp::address

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This commit is contained in:
Ian Gulliver
2026-04-19 00:32:13 -07:00
parent 40f7fb5941
commit 32044a5cbd
11 changed files with 378 additions and 285 deletions
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23
firmware/include/dispatch.h
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@@ -1,26 +1,33 @@
#pragma once
#include <cstdint>
#include <cstdio>
#include <functional>
#include <optional>
#include <span>
#include "wire.h"
#include "timer_queue.h"
#include "net.h"
#include "prepend_buffer.h"
#include "udp.h"
struct responder {
uint32_t message_id;
send_fn send;
udp::address reply_to;
template <typename T>
void respond(const T& msg) const {
send([&](span_writer& out) {
return encode_response_into(out, message_id, msg);
});
const auto& ns = net_get_state();
prepend_buffer<4096> buf;
span_writer out(buf.payload_ptr(), 2048);
auto r = encode_response_into(out, message_id, msg);
if (!r) return;
buf.append(*r);
udp::prepend(buf, reply_to.mac, ns.mac, ns.ip, reply_to.ip,
PICOMAP_PORT_BE, reply_to.port, *r);
net_send_raw(buf.span());
}
};
using handler_fn = void (*)(responder resp, std::span<const uint8_t> payload);
using handler_fn = void (*)(const responder& resp, std::span<const uint8_t> payload);
struct handler_entry {
int8_t type_id;
@@ -28,7 +35,7 @@ struct handler_entry {
};
template <typename Req, auto Fn>
void typed_handler(responder resp, std::span<const uint8_t> payload) {
void typed_handler(const responder& resp, std::span<const uint8_t> payload) {
msgpack::parser p(payload.data(), static_cast<int>(payload.size()));
Req req;
auto tup = req.as_tuple();
@@ -46,6 +53,6 @@ void typed_handler(responder resp, std::span<const uint8_t> payload) {
}
void dispatch_init();
timer_handle dispatch_schedule_ms(uint32_t ms, std::function<void()> fn);
timer_handle dispatch_schedule_ms(uint32_t ms, void (*fn)());
bool dispatch_cancel_timer(timer_handle h);
[[noreturn]] void dispatch_run(std::span<const handler_entry> handlers);