123 lines
4.8 KiB
C++
123 lines
4.8 KiB
C++
#include "App.h"
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#include "examples/helpers/AsyncFileReader.h"
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AsyncFileReader asyncFileReader("/home/alexhultman/v0.15/sintel.mkv");
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int main(int argc, char **argv) {
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uWS::/*SSL*/App(/*{
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.key_file_name = "/home/alexhultman/uWebSockets/misc/ssl/key.pem",
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.cert_file_name = "/home/alexhultman/uWebSockets/misc/ssl/cert.pem",
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.dh_params_file_name = "/home/alexhultman/dhparams.pem",
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.passphrase = "1234"
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}*/).get("/", [](auto *res, auto *req) {
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res->writeStatus(uWS::HTTP_200_OK);
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res->writeHeader("Content-Type", "text/html;charset=utf-8");
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res->write("<h1>Hallå!</h1>Din user-agent är: ");
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res->end(req->getHeader("user-agent"));
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// }).get("/endless", [](auto *res, auto *req) {
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// /* This route doesn't specify any length and only returns 1 char per chunk */
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// res->write([](int offset) {
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// std::string_view data("<html><body><h1>Hello, world</h1></body></html>");
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// if (offset < data.length()) {
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// return std::make_pair<bool, std::string_view>(offset < data.length() - 1, data.substr(offset, 1));
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// }
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// return uWS::HTTP_STREAM_FIN;
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// });
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}).get("/async/sintel.mkv", [](auto *res, auto *req) {
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// res->write(asyncFileReader.stream(res))
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// asyncFileReader.getAsStream()
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// res->write(data, length) -> bool (identical to nodejs)
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// res->tryWrite(data, length) -> int (what we will use mostly)
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// both operate like uSockets, they are paused by default and will trigger onWritable if set
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// res->onWritable(lambda) -> the same as "drain" even in Node.js, call tryWrite here, or do nothing to hang/pause
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// resume is gone, it will resume automatically as needed, just like uSockets do automatically
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// res will be somewhat like AsyncSocket but with certain middle functions for formatting the data (think Content-Length and Chunked)
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// res->onAborted(lambda) will be called when closed, for now all events lie on the res
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// res->onData() will probably be the same?
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//res->writeStatus(uWS::HTTP_200_OK)->end("Hello Sintel!");
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// om vi håller headers i en buffer och data i en annan?
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// om end eller tryEnd inte kommer före write swappar den till chunked!
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res->write("Hallå! Din user-agent är: "); // -> skriver till cork-buffern "Transfer-Encoding: chunked" och ett chunk
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res->end(req->getHeader("user-agent"));
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// write före end går över till chunked, från där kan man extenda till SSE men websockets är bättre format (binärt, mindre)
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// hur fungerar detta med server-sent-events?
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// end efter write blir ett noll-segment i chunked!
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/*if (!res->tryEnd()) {
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}*/
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/* This route streams back chunks of data in delayed fashion */
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// res->writeStatus(uWS::HTTP_200_OK)->write([res](int offset) {
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// /* Handle broken stream */
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// if (offset == -1) {
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// std::cout << "Stream was closed by peer!" << std::endl;
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// return uWS::HTTP_STREAM_IGNORE;
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// }
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// /* Peek from cache */
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// std::string_view chunk = asyncFileReader.peek(offset);
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// if (chunk.length()) {
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// /* We had parts of this file cached already */
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// return std::pair<bool, std::string_view>(false, chunk);
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// } else {
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// //std::string_view outerChunk;
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// /* We had nothing readily available right now, request async chunk and pause the stream until we have */
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// asyncFileReader.request(offset, [res](std::string_view chunk) {
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// //std::cout << "We came here!" << std::endl;
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// /* We were aborted */
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// if (!chunk.length()) {
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// std::cout << "Async File Read request was aborted!" << std::endl;
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// // close the socket here?
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// // we need a way to NOT resume a paused socket! essentially close!
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// } else {
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// /* We finally got the data, resume stream with this chunk */
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// res->resume(chunk);
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// }
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// });
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// //std::cout << "Returning chunk of size: " << outerChunk.length() << std::endl;
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// //return std::pair<bool, std::string_view>(false, outerChunk);
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// // what if we resumed before we paused! we cannot do that!
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// //std::cout << "PAusing stream out due to empty cache!" << std::endl;
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// return uWS::HTTP_STREAM_PAUSE;
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// }
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// }, asyncFileReader.getFileSize());
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}).listen(3000, [](auto *token) {
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if (token) {
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std::cout << "Listening on port " << 3000 << std::endl;
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}
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}).run();
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}
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