Add exception component
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Federico Cecchetto
parent
249e8a60f5
commit
bccf37907a
@ -1 +1,261 @@
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#include <std_include.hpp>
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#include "loader/component_loader.hpp"
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#include "system_check.hpp"
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#include "scheduler.hpp"
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#include "game/game.hpp"
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#include <utils/hook.hpp>
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#include <utils/io.hpp>
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#include <utils/string.hpp>
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#include <utils/thread.hpp>
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#include <utils/compression.hpp>
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#include <exception/minidump.hpp>
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#include <version.hpp>
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#include "game/dvars.hpp"
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namespace exception
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{
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namespace
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{
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thread_local struct
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{
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DWORD code = 0;
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PVOID address = nullptr;
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} exception_data;
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struct
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{
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std::chrono::time_point<std::chrono::high_resolution_clock> last_recovery{};
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std::atomic<int> recovery_counts = {0};
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} recovery_data;
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bool is_game_thread()
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{
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static std::vector<int> allowed_threads =
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{
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game::THREAD_CONTEXT_MAIN,
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};
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const auto self_id = GetCurrentThreadId();
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for (const auto& index : allowed_threads)
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{
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if (game::threadIds[index] == self_id)
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{
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return true;
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}
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}
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return false;
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}
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bool is_exception_interval_too_short()
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{
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const auto delta = std::chrono::high_resolution_clock::now() - recovery_data.last_recovery;
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return delta < 1min;
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}
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bool too_many_exceptions_occured()
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{
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return recovery_data.recovery_counts >= 3;
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}
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volatile bool& is_initialized()
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{
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static volatile bool initialized = false;
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return initialized;
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}
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bool is_recoverable()
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{
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return is_initialized()
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&& is_game_thread()
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&& !is_exception_interval_too_short()
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&& !too_many_exceptions_occured();
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}
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void show_mouse_cursor()
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{
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while (ShowCursor(TRUE) < 0);
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}
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void display_error_dialog()
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{
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std::string error_str = utils::string::va("Fatal error (0x%08X) at 0x%p.\n"
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"A minidump has been written.\n\n",
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exception_data.code, exception_data.address);
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if (!system_check::is_valid())
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{
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error_str += "Make sure to get supported game files to avoid such crashes!";
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}
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else
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{
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error_str += "Make sure to update your graphics card drivers and install operating system updates!";
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}
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utils::thread::suspend_other_threads();
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show_mouse_cursor();
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MessageBoxA(nullptr, error_str.data(), "H1-Mod ERROR", MB_ICONERROR);
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TerminateProcess(GetCurrentProcess(), exception_data.code);
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}
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void reset_state()
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{
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if (dvars::cg_legacyCrashHandling && dvars::cg_legacyCrashHandling->current.enabled)
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{
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display_error_dialog();
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}
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// TODO: Add a limit for dedi restarts
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if (game::environment::is_dedi())
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{
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utils::nt::relaunch_self();
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utils::nt::terminate(exception_data.code);
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}
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if (is_recoverable())
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{
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recovery_data.last_recovery = std::chrono::high_resolution_clock::now();
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++recovery_data.recovery_counts;
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game::Com_Error(game::ERR_DROP, "Fatal error (0x%08X) at 0x%p.\nA minidump has been written.\n\n"
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"H1-Mod has tried to recover your game, but it might not run stable anymore.\n\n"
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"Make sure to update your graphics card drivers and install operating system updates!\n"
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"Closing or restarting Steam might also help.",
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exception_data.code, exception_data.address);
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}
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else
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{
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display_error_dialog();
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}
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}
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size_t get_reset_state_stub()
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{
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static auto* stub = utils::hook::assemble([](utils::hook::assembler& a)
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{
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a.sub(rsp, 0x10);
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a.or_(rsp, 0x8);
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a.jmp(reset_state);
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});
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return reinterpret_cast<size_t>(stub);
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}
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std::string get_timestamp()
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{
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tm ltime{};
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char timestamp[MAX_PATH] = {0};
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const auto time = _time64(nullptr);
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_localtime64_s(<ime, &time);
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strftime(timestamp, sizeof(timestamp) - 1, "%Y-%m-%d-%H-%M-%S", <ime);
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return timestamp;
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}
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std::string generate_crash_info(const LPEXCEPTION_POINTERS exceptioninfo)
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{
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std::string info{};
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const auto line = [&info](const std::string& text)
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{
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info.append(text);
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info.append("\r\n");
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};
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line("H1-Mod Crash Dump");
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line("");
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line("Version: "s + VERSION);
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line("Environment: "s + game::environment::get_string());
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line("Timestamp: "s + get_timestamp());
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line("Clean game: "s + (system_check::is_valid() ? "Yes" : "No"));
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line(utils::string::va("Exception: 0x%08X", exceptioninfo->ExceptionRecord->ExceptionCode));
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line(utils::string::va("Address: 0x%llX", exceptioninfo->ExceptionRecord->ExceptionAddress));
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#pragma warning(push)
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#pragma warning(disable: 4996)
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OSVERSIONINFOEXA version_info;
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ZeroMemory(&version_info, sizeof(version_info));
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version_info.dwOSVersionInfoSize = sizeof(version_info);
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GetVersionExA(reinterpret_cast<LPOSVERSIONINFOA>(&version_info));
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#pragma warning(pop)
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line(utils::string::va("OS Version: %u.%u", version_info.dwMajorVersion, version_info.dwMinorVersion));
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return info;
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}
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void write_minidump(const LPEXCEPTION_POINTERS exceptioninfo)
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{
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const std::string crash_name = utils::string::va("minidumps/h1-mod-crash-%d-%s.zip",
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game::environment::get_real_mode(),
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get_timestamp().data());
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utils::compression::zip::archive zip_file{};
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zip_file.add("crash.dmp", create_minidump(exceptioninfo));
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zip_file.add("info.txt", generate_crash_info(exceptioninfo));
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zip_file.write(crash_name, "H1-Mod Crash Dump");
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}
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bool is_harmless_error(const LPEXCEPTION_POINTERS exceptioninfo)
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{
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const auto code = exceptioninfo->ExceptionRecord->ExceptionCode;
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return code == STATUS_INTEGER_OVERFLOW || code == STATUS_FLOAT_OVERFLOW || code == STATUS_SINGLE_STEP;
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}
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LONG WINAPI exception_filter(const LPEXCEPTION_POINTERS exceptioninfo)
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{
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if (is_harmless_error(exceptioninfo))
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{
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return EXCEPTION_CONTINUE_EXECUTION;
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}
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write_minidump(exceptioninfo);
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exception_data.code = exceptioninfo->ExceptionRecord->ExceptionCode;
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exception_data.address = exceptioninfo->ExceptionRecord->ExceptionAddress;
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exceptioninfo->ContextRecord->Rip = get_reset_state_stub();
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return EXCEPTION_CONTINUE_EXECUTION;
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}
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LPTOP_LEVEL_EXCEPTION_FILTER WINAPI set_unhandled_exception_filter_stub(LPTOP_LEVEL_EXCEPTION_FILTER)
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{
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// Don't register anything here...
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return &exception_filter;
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}
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}
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class component final : public component_interface
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{
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public:
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component()
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{
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SetUnhandledExceptionFilter(exception_filter);
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}
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void post_load() override
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{
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SetUnhandledExceptionFilter(exception_filter);
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utils::hook::jump(SetUnhandledExceptionFilter, set_unhandled_exception_filter_stub, true);
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scheduler::on_game_initialized([]()
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{
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is_initialized() = true;
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});
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}
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void post_unpack() override
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{
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dvars::cg_legacyCrashHandling = dvars::register_bool("cg_legacyCrashHandling",
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false, game::DVAR_FLAG_SAVED, true);
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}
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};
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}
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REGISTER_COMPONENT(exception::component)
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@ -151,8 +151,6 @@ namespace game_console
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color);
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}
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void draw_input_text_and_over(const char* str, float* color)
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{
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game::R_AddCmdDrawText(str, 0x7FFFFFFF, console_font, con.globals.x,
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@ -178,7 +176,6 @@ namespace game_console
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game::R_AddCmdDrawText(text, 0x7FFFFFFF, console_font, con.globals.x + offset, _y, 1.0f, 1.0f, 0.0f, color, 0);
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}
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bool match_compare(const std::string& input, const std::string& text, const bool exact)
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{
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if (exact && text == input) return true;
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@ -226,6 +223,7 @@ namespace game_console
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return;
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}
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}
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cmd = cmd->next;
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}
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}
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