SDRPlusPlus/core/src/server.cpp
AlexandreRouma 343ec6ca1c lots o shit
2022-06-15 16:08:28 +02:00

388 lines
14 KiB
C++

#include "server.h"
#include "core.h"
#include <spdlog/spdlog.h>
#include <version.h>
#include <config.h>
#include <filesystem>
#include <dsp/types.h>
#include <signal_path/signal_path.h>
#include <gui/smgui.h>
#include <utils/optionlist.h>
#include "dsp/compression/sample_stream_compressor.h"
#include "dsp/sink/handler_sink.h"
#include <zstd.h>
namespace server {
dsp::stream<dsp::complex_t> dummyInput;
dsp::compression::SampleStreamCompressor comp;
dsp::sink::Handler<uint8_t> hnd;
net::Conn client;
uint8_t* rbuf = NULL;
uint8_t* sbuf = NULL;
uint8_t* bbuf = NULL;
PacketHeader* r_pkt_hdr = NULL;
uint8_t* r_pkt_data = NULL;
CommandHeader* r_cmd_hdr = NULL;
uint8_t* r_cmd_data = NULL;
PacketHeader* s_pkt_hdr = NULL;
uint8_t* s_pkt_data = NULL;
CommandHeader* s_cmd_hdr = NULL;
uint8_t* s_cmd_data = NULL;
PacketHeader* bb_pkt_hdr = NULL;
uint8_t* bb_pkt_data = NULL;
SmGui::DrawListElem dummyElem;
ZSTD_CCtx* cctx;
net::Listener listener;
OptionList<std::string, std::string> sourceList;
int sourceId = 0;
bool running = false;
bool compression = false;
double sampleRate = 1000000.0;
int main() {
spdlog::info("=====| SERVER MODE |=====");
// Init DSP
comp.init(&dummyInput, dsp::compression::PCM_TYPE_I8);
hnd.init(&comp.out, _testServerHandler, NULL);
rbuf = new uint8_t[SERVER_MAX_PACKET_SIZE];
sbuf = new uint8_t[SERVER_MAX_PACKET_SIZE];
bbuf = new uint8_t[SERVER_MAX_PACKET_SIZE];
comp.start();
hnd.start();
// Initialize headers
r_pkt_hdr = (PacketHeader*)rbuf;
r_pkt_data = &rbuf[sizeof(PacketHeader)];
r_cmd_hdr = (CommandHeader*)r_pkt_data;
r_cmd_data = &rbuf[sizeof(PacketHeader) + sizeof(CommandHeader)];
s_pkt_hdr = (PacketHeader*)sbuf;
s_pkt_data = &sbuf[sizeof(PacketHeader)];
s_cmd_hdr = (CommandHeader*)s_pkt_data;
s_cmd_data = &sbuf[sizeof(PacketHeader) + sizeof(CommandHeader)];
bb_pkt_hdr = (PacketHeader*)bbuf;
bb_pkt_data = &bbuf[sizeof(PacketHeader)];
// Initialize compressor
cctx = ZSTD_createCCtx();
// Load config
core::configManager.acquire();
std::string modulesDir = core::configManager.conf["modulesDirectory"];
std::vector<std::string> modules = core::configManager.conf["modules"];
auto modList = core::configManager.conf["moduleInstances"].items();
std::string sourceName = core::configManager.conf["source"];
core::configManager.release();
modulesDir = std::filesystem::absolute(modulesDir).string();
// Intialize SmGui in server mode
SmGui::init(true);
spdlog::info("Loading modules");
// Load modules and check type to only load sources ( TODO: Have a proper type parameter int the info )
// TODO LATER: Add whitelist/blacklist stuff
if (std::filesystem::is_directory(modulesDir)) {
for (const auto& file : std::filesystem::directory_iterator(modulesDir)) {
std::string path = file.path().generic_string();
std::string fn = file.path().filename().string();
if (file.path().extension().generic_string() != SDRPP_MOD_EXTENTSION) {
continue;
}
if (!file.is_regular_file()) { continue; }
if (fn.find("source") == std::string::npos) { continue; }
spdlog::info("Loading {0}", path);
core::moduleManager.loadModule(path);
}
}
else {
spdlog::warn("Module directory {0} does not exist, not loading modules from directory", modulesDir);
}
// Load additional modules through the config ( TODO: Have a proper type parameter int the info )
// TODO LATER: Add whitelist/blacklist stuff
for (auto const& apath : modules) {
std::filesystem::path file = std::filesystem::absolute(apath);
std::string path = file.generic_string();
std::string fn = file.filename().string();
if (file.extension().generic_string() != SDRPP_MOD_EXTENTSION) {
continue;
}
if (!std::filesystem::is_regular_file(file)) { continue; }
if (fn.find("source") == std::string::npos) { continue; }
spdlog::info("Loading {0}", path);
core::moduleManager.loadModule(path);
}
// Create module instances
for (auto const& [name, _module] : modList) {
std::string mod = _module["module"];
bool enabled = _module["enabled"];
if (core::moduleManager.modules.find(mod) == core::moduleManager.modules.end()) { continue; }
spdlog::info("Initializing {0} ({1})", name, mod);
core::moduleManager.createInstance(name, mod);
if (!enabled) { core::moduleManager.disableInstance(name); }
}
// Do post-init
core::moduleManager.doPostInitAll();
// Generate source list
auto list = sigpath::sourceManager.getSourceNames();
for (auto& name : list) {
sourceList.define(name, name);
}
// Load sourceId from config
sourceId = 0;
if (sourceList.keyExists(sourceName)) { sourceId = sourceList.keyId(sourceName); }
sigpath::sourceManager.selectSource(sourceList[sourceId]);
// TODO: Use command line option
std::string host = (std::string)core::args["addr"];
int port = (int)core::args["port"];
listener = net::listen(host, port);
listener->acceptAsync(_clientHandler, NULL);
spdlog::info("Ready, listening on {0}:{1}", host, port);
while(1) { std::this_thread::sleep_for(std::chrono::milliseconds(100)); }
return 0;
}
void _clientHandler(net::Conn conn, void* ctx) {
// Reject if someone else is already connected
if (client && client->isOpen()) {
spdlog::info("REJECTED Connection from {0}:{1}, another client is already connected.", "TODO", "TODO");
// Issue a disconnect command to the client
uint8_t buf[sizeof(PacketHeader) + sizeof(CommandHeader)];
PacketHeader* tmp_phdr = (PacketHeader*)buf;
CommandHeader* tmp_chdr = (CommandHeader*)&buf[sizeof(PacketHeader)];
tmp_phdr->size = sizeof(PacketHeader) + sizeof(CommandHeader);
tmp_phdr->type = PACKET_TYPE_COMMAND;
tmp_chdr->cmd = COMMAND_DISCONNECT;
conn->write(tmp_phdr->size, buf);
// TODO: Find something cleaner
std::this_thread::sleep_for(std::chrono::milliseconds(100));
conn->close();
// Start another async accept
listener->acceptAsync(_clientHandler, NULL);
return;
}
spdlog::info("Connection from {0}:{1}", "TODO", "TODO");
client = std::move(conn);
client->readAsync(sizeof(PacketHeader), rbuf, _packetHandler, NULL);
// Perform settings reset
sigpath::sourceManager.stop();
comp.setPCMType(dsp::compression::PCM_TYPE_I16);
compression = false;
sendSampleRate(sampleRate);
// TODO: Wait otherwise someone else could connect
listener->acceptAsync(_clientHandler, NULL);
}
void _packetHandler(int count, uint8_t* buf, void* ctx) {
PacketHeader* hdr = (PacketHeader*)buf;
// Read the rest of the data (TODO: CHECK SIZE OR SHIT WILL BE FUCKED + ADD TIMEOUT)
int len = 0;
int read = 0;
int goal = hdr->size - sizeof(PacketHeader);
while (len < goal) {
read = client->read(goal - len, &buf[sizeof(PacketHeader) + len]);
if (read < 0) { return; };
len += read;
}
// Parse and process
if (hdr->type == PACKET_TYPE_COMMAND && hdr->size >= sizeof(PacketHeader) + sizeof(CommandHeader)) {
CommandHeader* chdr = (CommandHeader*)&buf[sizeof(PacketHeader)];
commandHandler((Command)chdr->cmd, &buf[sizeof(PacketHeader) + sizeof(CommandHeader)], hdr->size - sizeof(PacketHeader) - sizeof(CommandHeader));
}
else {
sendError(ERROR_INVALID_PACKET);
}
// Start another async read
client->readAsync(sizeof(PacketHeader), rbuf, _packetHandler, NULL);
}
void _testServerHandler(uint8_t* data, int count, void* ctx) {
// Compress data if needed and fill out header fields
if (compression) {
bb_pkt_hdr->type = PACKET_TYPE_BASEBAND_COMPRESSED;
bb_pkt_hdr->size = sizeof(PacketHeader) + (uint32_t)ZSTD_compressCCtx(cctx, &bbuf[sizeof(PacketHeader)], SERVER_MAX_PACKET_SIZE, data, count, 1);
}
else {
bb_pkt_hdr->type = PACKET_TYPE_BASEBAND;
bb_pkt_hdr->size = sizeof(PacketHeader) + count;
memcpy(&bbuf[sizeof(PacketHeader)], data, count);
}
// Write to network
if (client && client->isOpen()) { client->write(bb_pkt_hdr->size, bbuf); }
}
void setInput(dsp::stream<dsp::complex_t>* stream) {
comp.setInput(stream);
}
void commandHandler(Command cmd, uint8_t* data, int len) {
if (cmd == COMMAND_GET_UI) {
sendUI(COMMAND_GET_UI, "", dummyElem);
}
else if (cmd == COMMAND_UI_ACTION && len >= 3) {
// Check if sending back data is needed
int i = 0;
bool sendback = data[i++];
len--;
// Load id
SmGui::DrawListElem diffId;
int count = SmGui::DrawList::loadItem(diffId, &data[i], len);
if (count < 0) { sendError(ERROR_INVALID_ARGUMENT); return; }
if (diffId.type != SmGui::DRAW_LIST_ELEM_TYPE_STRING) { sendError(ERROR_INVALID_ARGUMENT); return; }
i += count;
len -= count;
// Load value
SmGui::DrawListElem diffValue;
count = SmGui::DrawList::loadItem(diffValue, &data[i], len);
if (count < 0) { sendError(ERROR_INVALID_ARGUMENT); return; }
i += count;
len -= count;
// Render and send back
if (sendback) {
sendUI(COMMAND_UI_ACTION, diffId.str, diffValue);
}
else {
renderUI(NULL, diffId.str, diffValue);
}
}
else if (cmd == COMMAND_START) {
sigpath::sourceManager.start();
running = true;
}
else if (cmd == COMMAND_STOP) {
sigpath::sourceManager.stop();
running = false;
}
else if (cmd == COMMAND_SET_FREQUENCY && len == 8) {
sigpath::sourceManager.tune(*(double*)data);
sendCommandAck(COMMAND_SET_FREQUENCY, 0);
}
else if (cmd == COMMAND_SET_SAMPLE_TYPE && len == 1) {
dsp::compression::PCMType type = (dsp::compression::PCMType)*(uint8_t*)data;
comp.setPCMType(type);
}
else if (cmd == COMMAND_SET_COMPRESSION && len == 1) {
compression = *(uint8_t*)data;
}
else {
spdlog::error("Invalid Command: {0} (len = {1})", cmd, len);
sendError(ERROR_INVALID_COMMAND);
}
}
void drawMenu() {
if (running) { SmGui::BeginDisabled(); }
SmGui::FillWidth();
SmGui::ForceSync();
if (SmGui::Combo("##sdrpp_server_src_sel", &sourceId, sourceList.txt)) {
sigpath::sourceManager.selectSource(sourceList[sourceId]);
core::configManager.acquire();
core::configManager.conf["source"] = sourceList.key(sourceId);
core::configManager.release(true);
}
if (running) { SmGui::EndDisabled(); }
sigpath::sourceManager.showSelectedMenu();
}
void renderUI(SmGui::DrawList* dl, std::string diffId, SmGui::DrawListElem diffValue) {
// If we're recording and there's an action, render once with the action and record without
if (dl && !diffId.empty()) {
SmGui::setDiff(diffId, diffValue);
drawMenu();
SmGui::setDiff("", dummyElem);
SmGui::startRecord(dl);
drawMenu();
SmGui::stopRecord();
}
else {
SmGui::setDiff(diffId, diffValue);
SmGui::startRecord(dl);
drawMenu();
SmGui::stopRecord();
}
}
void sendUI(Command originCmd, std::string diffId, SmGui::DrawListElem diffValue) {
// Render UI
SmGui::DrawList dl;
renderUI(&dl, diffId, diffValue);
// Create response
int size = dl.getSize();
dl.store(s_cmd_data, size);
// Send to network
sendCommandAck(originCmd, size);
}
void sendError(Error err) {
PacketHeader* hdr = (PacketHeader*)sbuf;
s_pkt_data[0] = err;
sendPacket(PACKET_TYPE_ERROR, 1);
}
void sendSampleRate(double sampleRate) {
*(double*)s_cmd_data = sampleRate;
sendCommand(COMMAND_SET_SAMPLERATE, sizeof(double));
}
void setInputSampleRate(double samplerate) {
sampleRate = samplerate;
if (!client || !client->isOpen()) { return; }
sendSampleRate(sampleRate);
}
void sendPacket(PacketType type, int len) {
s_pkt_hdr->type = type;
s_pkt_hdr->size = sizeof(PacketHeader) + len;
client->write(s_pkt_hdr->size, sbuf);
}
void sendCommand(Command cmd, int len) {
s_cmd_hdr->cmd = cmd;
sendPacket(PACKET_TYPE_COMMAND, sizeof(CommandHeader) + len);
}
void sendCommandAck(Command cmd, int len) {
s_cmd_hdr->cmd = cmd;
sendPacket(PACKET_TYPE_COMMAND_ACK, sizeof(CommandHeader) + len);
}
}