mirror of
https://github.com/libretro/pcsx2.git
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347 lines
10 KiB
C++
347 lines
10 KiB
C++
/* PCSX2 - PS2 Emulator for PCs
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* Copyright (C) 2002-2010 PCSX2 Dev Team
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*
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* PCSX2 is free software: you can redistribute it and/or modify it under the terms
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* of the GNU Lesser General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with PCSX2.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "Threading.h"
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#include "General.h"
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#include "Exceptions.h"
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#include "CrashHandler.h"
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#include <mutex>
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#include "fmt/core.h"
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#ifdef _WIN32
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#include "RedtapeWindows.h"
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#include <intrin.h>
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#include <tlhelp32.h>
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#endif
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#ifdef __UNIX__
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#include <signal.h>
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#endif
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static std::mutex s_assertion_failed_mutex;
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static inline void FreezeThreads(void** handle)
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{
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#if defined(_WIN32)
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HANDLE snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPTHREAD, 0);
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if (snapshot != INVALID_HANDLE_VALUE)
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{
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THREADENTRY32 threadEntry;
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if (Thread32First(snapshot, &threadEntry))
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{
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do
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{
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if (threadEntry.th32ThreadID == GetCurrentThreadId())
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continue;
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HANDLE hThread = OpenThread(THREAD_SUSPEND_RESUME, FALSE, threadEntry.th32ThreadID);
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if (hThread != nullptr)
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{
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SuspendThread(hThread);
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CloseHandle(hThread);
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}
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} while (Thread32Next(snapshot, &threadEntry));
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}
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}
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*handle = static_cast<void*>(snapshot);
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#else
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* handle = nullptr;
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#endif
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}
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static inline void ResumeThreads(void* handle)
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{
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#if defined(_WIN32)
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if (handle != INVALID_HANDLE_VALUE)
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{
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THREADENTRY32 threadEntry;
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if (Thread32First(reinterpret_cast<HANDLE>(handle), &threadEntry))
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{
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do
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{
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if (threadEntry.th32ThreadID == GetCurrentThreadId())
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continue;
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HANDLE hThread = OpenThread(THREAD_SUSPEND_RESUME, FALSE, threadEntry.th32ThreadID);
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if (hThread != nullptr)
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{
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ResumeThread(hThread);
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CloseHandle(hThread);
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}
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} while (Thread32Next(reinterpret_cast<HANDLE>(handle), &threadEntry));
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}
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CloseHandle(reinterpret_cast<HANDLE>(handle));
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}
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#else
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#endif
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}
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void pxOnAssertFail(const char* file, int line, const char* func, const char* msg)
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{
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std::unique_lock guard(s_assertion_failed_mutex);
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void* handle;
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FreezeThreads(&handle);
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char full_msg[512];
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std::snprintf(full_msg, sizeof(full_msg), "%s:%d: assertion failed in function %s: %s\n", file, line, func, msg);
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#if defined(_WIN32)
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HANDLE error_handle = GetStdHandle(STD_ERROR_HANDLE);
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if (error_handle != INVALID_HANDLE_VALUE)
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WriteConsoleA(GetStdHandle(STD_ERROR_HANDLE), full_msg, static_cast<DWORD>(std::strlen(full_msg)), NULL, NULL);
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OutputDebugStringA(full_msg);
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std::snprintf(
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full_msg, sizeof(full_msg),
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"Assertion failed in function %s (%s:%d):\n\n%s\n\nPress Abort to exit, Retry to break to debugger, or Ignore to attempt to continue.",
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func, file, line, msg);
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int result = MessageBoxA(NULL, full_msg, NULL, MB_ABORTRETRYIGNORE | MB_ICONERROR);
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if (result == IDRETRY)
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{
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__debugbreak();
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}
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else if (result != IDIGNORE)
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{
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// try to save a crash dump before exiting
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CrashHandler::WriteDumpForCaller();
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TerminateProcess(GetCurrentProcess(), 0xBAADC0DE);
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}
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#else
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fputs(full_msg, stderr);
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fputs("\nAborting application.\n", stderr);
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fflush(stderr);
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AbortWithMessage(full_msg);
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#endif
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ResumeThreads(handle);
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}
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// --------------------------------------------------------------------------------------
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// BaseException (implementations)
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// --------------------------------------------------------------------------------------
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BaseException& BaseException::SetBothMsgs(const char* msg_diag)
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{
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m_message_user = msg_diag ? std::string(msg_diag) : std::string();
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return SetDiagMsg(msg_diag);
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}
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BaseException& BaseException::SetDiagMsg(std::string msg_diag)
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{
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m_message_diag = std::move(msg_diag);
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return *this;
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}
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BaseException& BaseException::SetUserMsg(std::string msg_user)
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{
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m_message_user = std::move(msg_user);
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return *this;
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}
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std::string BaseException::FormatDiagnosticMessage() const
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{
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return m_message_diag;
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}
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std::string BaseException::FormatDisplayMessage() const
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{
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return m_message_user.empty() ? m_message_diag : m_message_user;
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}
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// --------------------------------------------------------------------------------------
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// Exception::RuntimeError (implementations)
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// --------------------------------------------------------------------------------------
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Exception::RuntimeError::RuntimeError(const std::runtime_error& ex, const char* prefix /* = nullptr */)
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{
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IsSilent = false;
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const bool has_prefix = prefix && prefix[0] != 0;
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SetDiagMsg(fmt::format("STL Runtime Error{}{}{}: {}",
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has_prefix ? " (" : "", prefix ? prefix : "", has_prefix ? ")" : "",
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ex.what()));
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}
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Exception::RuntimeError::RuntimeError(const std::exception& ex, const char* prefix /* = nullptr */)
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{
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IsSilent = false;
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const bool has_prefix = prefix && prefix[0] != 0;
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SetDiagMsg(fmt::format("STL Exception{}{}{}: {}",
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has_prefix ? " (" : "", prefix ? prefix : "", has_prefix ? ")" : "",
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ex.what()));
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}
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// --------------------------------------------------------------------------------------
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// Exception::BadStream (implementations)
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// --------------------------------------------------------------------------------------
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std::string Exception::BadStream::FormatDiagnosticMessage() const
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{
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std::string retval;
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_formatDiagMsg(retval);
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return retval;
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}
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std::string Exception::BadStream::FormatDisplayMessage() const
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{
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std::string retval;
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_formatUserMsg(retval);
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return retval;
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}
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void Exception::BadStream::_formatDiagMsg(std::string& dest) const
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{
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fmt::format_to(std::back_inserter(dest), "Path: ");
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if (!StreamName.empty())
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fmt::format_to(std::back_inserter(dest), "{}", StreamName);
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else
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dest += "[Unnamed or unknown]";
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if (!m_message_diag.empty())
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fmt::format_to(std::back_inserter(dest), "\n{}", m_message_diag);
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}
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void Exception::BadStream::_formatUserMsg(std::string& dest) const
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{
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fmt::format_to(std::back_inserter(dest), "Path: ");
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if (!StreamName.empty())
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fmt::format_to(std::back_inserter(dest), "{}", StreamName);
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else
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dest += "[Unnamed or unknown]";
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if (!m_message_user.empty())
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fmt::format_to(std::back_inserter(dest), "\n{}", m_message_user);
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}
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// --------------------------------------------------------------------------------------
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// Exception::CannotCreateStream (implementations)
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// --------------------------------------------------------------------------------------
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std::string Exception::CannotCreateStream::FormatDiagnosticMessage() const
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{
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std::string retval;
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retval = "File could not be created.";
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_formatDiagMsg(retval);
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return retval;
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}
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std::string Exception::CannotCreateStream::FormatDisplayMessage() const
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{
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std::string retval;
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retval = "A file could not be created.\n";
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_formatUserMsg(retval);
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return retval;
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}
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// --------------------------------------------------------------------------------------
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// Exception::FileNotFound (implementations)
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// --------------------------------------------------------------------------------------
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std::string Exception::FileNotFound::FormatDiagnosticMessage() const
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{
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std::string retval;
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retval = "File not found.\n";
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_formatDiagMsg(retval);
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return retval;
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}
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std::string Exception::FileNotFound::FormatDisplayMessage() const
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{
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std::string retval;
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retval = "File not found.\n";
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_formatUserMsg(retval);
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return retval;
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}
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// --------------------------------------------------------------------------------------
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// Exception::AccessDenied (implementations)
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// --------------------------------------------------------------------------------------
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std::string Exception::AccessDenied::FormatDiagnosticMessage() const
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{
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std::string retval;
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retval = "Permission denied to file.\n";
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_formatDiagMsg(retval);
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return retval;
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}
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std::string Exception::AccessDenied::FormatDisplayMessage() const
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{
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std::string retval;
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retval = "Permission denied while trying to open file, likely due to insufficient user account rights.\n";
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_formatUserMsg(retval);
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return retval;
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}
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// --------------------------------------------------------------------------------------
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// Exception::EndOfStream (implementations)
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// --------------------------------------------------------------------------------------
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std::string Exception::EndOfStream::FormatDiagnosticMessage() const
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{
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std::string retval;
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retval = "Unexpected end of file or stream.\n";
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_formatDiagMsg(retval);
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return retval;
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}
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std::string Exception::EndOfStream::FormatDisplayMessage() const
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{
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std::string retval;
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retval = "Unexpected end of file or stream encountered. File is probably truncated or corrupted.\n";
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_formatUserMsg(retval);
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return retval;
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}
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// --------------------------------------------------------------------------------------
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// Exceptions from Errno (POSIX)
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// --------------------------------------------------------------------------------------
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// Translates an Errno code into an exception.
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// Throws an exception based on the given error code (usually taken from ANSI C's errno)
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std::unique_ptr<BaseException> Exception::FromErrno(std::string streamname, int errcode)
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{
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pxAssumeDev(errcode != 0, "Invalid NULL error code? (errno)");
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switch (errcode)
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{
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case EINVAL:
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pxFailDev("Invalid argument");
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return std::unique_ptr<BaseException>(&(new Exception::BadStream(streamname))->SetDiagMsg("Invalid argument? (likely caused by an unforgivable programmer error!)"));
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case EACCES: // Access denied!
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return std::unique_ptr<BaseException>(new Exception::AccessDenied(streamname));
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case EMFILE: // Too many open files!
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return std::unique_ptr<BaseException>(&(new Exception::CannotCreateStream(streamname))->SetDiagMsg("Too many open files")); // File handle allocation failure
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case EEXIST:
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return std::unique_ptr<BaseException>(&(new Exception::CannotCreateStream(streamname))->SetDiagMsg("File already exists"));
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case ENOENT: // File not found!
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return std::unique_ptr<BaseException>(new Exception::FileNotFound(streamname));
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case EPIPE:
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return std::unique_ptr<BaseException>(&(new Exception::BadStream(streamname))->SetDiagMsg("Broken pipe"));
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case EBADF:
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return std::unique_ptr<BaseException>(&(new Exception::BadStream(streamname))->SetDiagMsg("Bad file number"));
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default:
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return std::unique_ptr<BaseException>(&(new Exception::BadStream(streamname))->SetDiagMsg(fmt::format("General file/stream error [errno: {}]", errcode)));
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}
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}
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