network-programming 相关问题

我已经尝试了几个小时来使 uWebSockets 库正常工作，但现在我毫无头绪。使用此代码时： #包括结构用户数据{ }; int main() { uWS::App().ws 我已经尝试了几个小时来使 uWebSockets 库正常工作，但现在我毫无头绪。使用此代码时： #include <App.h> struct UserData { }; int main() { uWS::App().ws<UserData>("/*", { /* Settings */ .compression = uWS::SHARED_COMPRESSOR, .maxPayloadLength = 16 * 1024, .idleTimeout = 10, /* Handlers */ .upgrade = [](auto *res, auto *req, auto *context) { /* You may read from req only here, and COPY whatever you need into your PerSocketData. * See UpgradeSync and UpgradeAsync examples. */ }, .open = [](auto *ws) { }, .message = [](auto *ws, std::string_view message, uWS::OpCode opCode) { ws->send(message, opCode); }, .drain = [](auto *ws) { /* Check getBufferedAmount here */ }, .ping = [](auto *ws) { }, .pong = [](auto *ws) { }, .close = [](auto *ws, int code, std::string_view message) { } }); } 我收到此错误： no instance of function template "uWS::CachingApp<SSL>::ws [with SSL=false]" matches the argument list 我更困惑了，因为 uWebSockets 文档提供了类似的示例，在复制到代码中后会出现完全相同的错误。我不知道为什么这不起作用。编辑：使用 cmake --build --verbose 出现完全错误： Change Dir: '/Users/me/documents/Programming/test/multiprocessing/realtime_build' Run Build Command(s): /opt/homebrew/Cellar/cmake/3.30.3/bin/cmake -E env VERBOSE=1 /usr/bin/make -f Makefile /opt/homebrew/Cellar/cmake/3.30.3/bin/cmake -S/Users/me/documents/Programming/test/multiprocessing/realtime_fetcher -B/Users/me/documents/Programming/test/multiprocessing/realtime_build --check-build-system CMakeFiles/Makefile.cmake 0 /opt/homebrew/Cellar/cmake/3.30.3/bin/cmake -E cmake_progress_start /Users/me/documents/Programming/test/multiprocessing/realtime_build/CMakeFiles /Users/me/documents/Programming/test/multiprocessing/realtime_build//CMakeFiles/progress.marks /Library/Developer/CommandLineTools/usr/bin/make -f CMakeFiles/Makefile2 all /Library/Developer/CommandLineTools/usr/bin/make -f CMakeFiles/realtime_fetcher.dir/build.make CMakeFiles/realtime_fetcher.dir/depend cd /Users/me/documents/Programming/test/multiprocessing/realtime_build && /opt/homebrew/Cellar/cmake/3.30.3/bin/cmake -E cmake_depends "Unix Makefiles" /Users/me/documents/Programming/test/multiprocessing/realtime_fetcher /Users/me/documents/Programming/test/multiprocessing/realtime_fetcher /Users/me/documents/Programming/test/multiprocessing/realtime_build /Users/me/documents/Programming/test/multiprocessing/realtime_build /Users/me/documents/Programming/test/multiprocessing/realtime_build/CMakeFiles/realtime_fetcher.dir/DependInfo.cmake "--color=" Dependencies file "CMakeFiles/realtime_fetcher.dir/Users/me/documents/Programming/test/multiprocessing/src/realtime_fetcher.cpp.o.d" is newer than depends file "/Users/me/documents/Programming/test/multiprocessing/realtime_build/CMakeFiles/realtime_fetcher.dir/compiler_depend.internal". Consolidate compiler generated dependencies of target realtime_fetcher /Library/Developer/CommandLineTools/usr/bin/make -f CMakeFiles/realtime_fetcher.dir/build.make CMakeFiles/realtime_fetcher.dir/build [ 50%] Building CXX object CMakeFiles/realtime_fetcher.dir/Users/me/documents/Programming/test/multiprocessing/src/realtime_fetcher.cpp.o /Library/Developer/CommandLineTools/usr/bin/c++ -I/Users/me/documents/Programming/test/multiprocessing/realtime_fetcher/../include -I/Users/me/documents/Programming/test/multiprocessing/realtime_fetcher/../include/openssl-3.3.2/include -I/Users/me/documents/Programming/test/multiprocessing/realtime_fetcher/../include/rapidjson-1.1.0/include -I/Users/me/documents/Programming/test/multiprocessing/realtime_fetcher/../include/uWebSockets/src -I/Users/me/documents/Programming/test/multiprocessing/realtime_fetcher/../include/uSockets -I/Users/me/documents/Programming/test/multiprocessing/realtime_fetcher/../include/zlib -I/Users/me/documents/Programming/test/multiprocessing/realtime_fetcher/../include/zlib/build -isystem /opt/homebrew/include -std=gnu++20 -arch arm64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX14.4.sdk -MD -MT CMakeFiles/realtime_fetcher.dir/Users/me/documents/Programming/test/multiprocessing/src/realtime_fetcher.cpp.o -MF CMakeFiles/realtime_fetcher.dir/Users/me/documents/Programming/test/multiprocessing/src/realtime_fetcher.cpp.o.d -o CMakeFiles/realtime_fetcher.dir/Users/me/documents/Programming/test/multiprocessing/src/realtime_fetcher.cpp.o -c /Users/me/documents/Programming/test/multiprocessing/src/realtime_fetcher.cpp /Users/me/documents/Programming/test/multiprocessing/src/realtime_fetcher.cpp:82:14: error: no matching member function for call to 'ws' uWS::App().ws<UserData>("/*", { ~~~~~~~~~~~^~~~~~~~~~~~ /Users/me/documents/Programming/test/multiprocessing/realtime_fetcher/../include/uWebSockets/src/App.h:272:32: note: candidate function template not viable: cannot convert initializer list argument to 'WebSocketBehavior<UserData>' BuilderPatternReturnType &&ws(std::string pattern, WebSocketBehavior<UserData> &&behavior) { ^ 1 error generated. make[2]: *** [CMakeFiles/realtime_fetcher.dir/Users/me/documents/Programming/test/multiprocessing/src/realtime_fetcher.cpp.o] Error 1 make[1]: *** [CMakeFiles/realtime_fetcher.dir/all] Error 2 make: *** [all] Error 2 向 ping 和 pong 添加 std::string_view 参数，如下所示： #include <App.h> struct UserData { }; int main() { uWS::App().ws<UserData>("/*", { /* Settings */ .compression = uWS::SHARED_COMPRESSOR, .maxPayloadLength = 16 * 1024, .idleTimeout = 10, /* Handlers */ .upgrade = [](auto *res, auto *req, auto *context) { /* You may read from req only here, and COPY whatever you need into your PerSocketData. * See UpgradeSync and UpgradeAsync examples. */ }, .open = [](auto *ws) { }, .message = [](auto *ws, std::string_view message, uWS::OpCode opCode) { ws->send(message, opCode); }, .drain = [](auto *ws) { /* Check getBufferedAmount here */ }, .ping = [](auto *ws, std::string_view) { }, .pong = [](auto *ws, std::string_view) { }, .close = [](auto *ws, int code, std::string_view message) { } }); }

c++ sockets network-programming websocket uwebsockets

回答 1 投票 0

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回答 1 投票 0

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