Don't put crash dumps in Temp on Windows

Well... unless we fail to get the user profile directory.

Also put freeze dumps in a more appropriately-named file.

Discussed in https://gitlab.com/OpenMW/openmw/-/issues/7455

components/crashcatcher/windows_crashcatcher.cpp

@@ -26,7 +26,7 @@ namespace Crash
 
     CrashCatcher* CrashCatcher::sInstance = nullptr;
 
-    CrashCatcher::CrashCatcher(int argc, char **argv, const std::string& crashLogPath)
+    CrashCatcher::CrashCatcher(int argc, char** argv, const std::string& crashDumpPath, const std::string& freezeDumpPath)
     {
         assert(sInstance == nullptr); // don't allow two instances
 
@@ -48,7 +48,7 @@ namespace Crash
         if (!shmHandle)
         {
             setupIpc();
-            startMonitorProcess(crashLogPath);
+            startMonitorProcess(crashDumpPath, freezeDumpPath);
             installHandler();
         }
         else
@@ -124,7 +124,7 @@ namespace Crash
         SetUnhandledExceptionFilter(vectoredExceptionHandler);
     }
 
-    void CrashCatcher::startMonitorProcess(const std::string& crashLogPath)
+    void CrashCatcher::startMonitorProcess(const std::string& crashDumpPath, const std::string& freezeDumpPath)
     {
         std::wstring executablePath;
         DWORD copied = 0;
@@ -134,11 +134,17 @@ namespace Crash
         } while (copied >= executablePath.size());
         executablePath.resize(copied);
 
-        memset(mShm->mStartup.mLogFilePath, 0, sizeof(mShm->mStartup.mLogFilePath));
+        memset(mShm->mStartup.mCrashDumpFilePath, 0, sizeof(mShm->mStartup.mCrashDumpFilePath));
-        size_t length = crashLogPath.length();
+        size_t length = crashDumpPath.length();
         if (length >= MAX_LONG_PATH) length = MAX_LONG_PATH - 1;
-        strncpy(mShm->mStartup.mLogFilePath, crashLogPath.c_str(), length);
+        strncpy(mShm->mStartup.mCrashDumpFilePath, crashDumpPath.c_str(), length);
-        mShm->mStartup.mLogFilePath[length] = '\0';
+        mShm->mStartup.mCrashDumpFilePath[length] = '\0';
+
+        memset(mShm->mStartup.mFreezeDumpFilePath, 0, sizeof(mShm->mStartup.mFreezeDumpFilePath));
+        length = freezeDumpPath.length();
+        if (length >= MAX_LONG_PATH) length = MAX_LONG_PATH - 1;
+        strncpy(mShm->mStartup.mFreezeDumpFilePath, freezeDumpPath.c_str(), length);
+        mShm->mStartup.mFreezeDumpFilePath[length] = '\0';
 
         // note that we don't need to lock the SHM here, the other process has not started yet
         mShm->mEvent = CrashSHM::Event::Startup;
@@ -197,7 +203,7 @@ namespace Crash
         // must remain until monitor has finished
         waitMonitor();
 
-        std::string message = "OpenMW has encountered a fatal error.\nCrash log saved to '" + std::string(mShm->mStartup.mLogFilePath) + "'.\nPlease report this to https://gitlab.com/OpenMW/openmw/issues !";
+        std::string message = "OpenMW has encountered a fatal error.\nCrash log saved to '" + std::string(mShm->mStartup.mCrashDumpFilePath) + "'.\nPlease report this to https://gitlab.com/OpenMW/openmw/issues !";
         SDL_ShowSimpleMessageBox(0, "Fatal Error", message.c_str(), nullptr);
     }
 

components/crashcatcher/windows_crashcatcher.hpp

@@ -28,7 +28,7 @@ namespace Crash
     {
     public:
 
-        CrashCatcher(int argc, char **argv, const std::string& crashLogPath);
+        CrashCatcher(int argc, char** argv, const std::string& crashDumpPath, const std::string& freezeDumpPath);
         ~CrashCatcher();
 
     private:
@@ -56,7 +56,7 @@ namespace Crash
 
         void shmUnlock();
 
-        void startMonitorProcess(const std::string& crashLogPath);
+        void startMonitorProcess(const std::string& crashDumpPath, const std::string& freezeDumpPath);
 
         void waitMonitor();
 

components/crashcatcher/windows_crashmonitor.cpp

@@ -186,7 +186,7 @@ namespace Crash
                     case CrashSHM::Event::None:
                         break;
                     case CrashSHM::Event::Crashed:
-                        handleCrash();
+                        handleCrash(false);
                         running = false;
                         break;
                     case CrashSHM::Event::Shutdown:
@@ -205,9 +205,9 @@ namespace Crash
 
             if (mFreezeAbort)
             {
-                handleCrash();
+                handleCrash(true);
                 TerminateProcess(mAppProcessHandle, 0xDEAD);
-                std::string message = "OpenMW appears to have frozen.\nCrash log saved to '" + std::string(mShm->mStartup.mLogFilePath) + "'.\nPlease report this to https://gitlab.com/OpenMW/openmw/issues !";
+                std::string message = "OpenMW appears to have frozen.\nCrash log saved to '" + std::string(mShm->mStartup.mFreezeDumpFilePath) + "'.\nPlease report this to https://gitlab.com/OpenMW/openmw/issues !";
                 SDL_ShowSimpleMessageBox(0, "Fatal Error", message.c_str(), nullptr);
             }
 
@@ -231,7 +231,7 @@ namespace Crash
         return utf16;
     }
 
-    void CrashMonitor::handleCrash()
+    void CrashMonitor::handleCrash(bool isFreeze)
     {
         DWORD processId = GetProcessId(mAppProcessHandle);
 
@@ -250,7 +250,7 @@ namespace Crash
             if (miniDumpWriteDump == NULL)
                 return;
 
-            std::wstring utf16Path = utf8ToUtf16(mShm->mStartup.mLogFilePath);
+            std::wstring utf16Path = utf8ToUtf16(isFreeze ? mShm->mStartup.mFreezeDumpFilePath : mShm->mStartup.mCrashDumpFilePath);
             if (utf16Path.empty())
                 return;
 

components/crashcatcher/windows_crashmonitor.hpp

@@ -53,7 +53,7 @@ private:
 
     void shmUnlock();
 
-    void handleCrash();
+    void handleCrash(bool isFreeze);
 
     void showFreezeMessageBox();
 

components/crashcatcher/windows_crashshm.hpp

@@ -28,7 +28,8 @@ namespace Crash
             HANDLE mSignalApp;
             HANDLE mSignalMonitor;
             HANDLE mShmMutex;
-            char mLogFilePath[MAX_LONG_PATH];
+            char mCrashDumpFilePath[MAX_LONG_PATH];
+            char mFreezeDumpFilePath[MAX_LONG_PATH];
         } mStartup;
 
         struct Crashed

components/debug/debugging.cpp

@@ -9,6 +9,12 @@
 #ifdef _WIN32
 #include <components/crashcatcher/windows_crashcatcher.hpp>
 #include <components/windows.hpp>
+#include <Knownfolders.h>
+#define FAR
+#define NEAR
+#include <Shlobj.h>
+#undef NEAR
+#undef FAR
 #endif
 
 #include <SDL_messagebox.h>
@@ -304,8 +310,16 @@ int wrapApplication(int (*innerApplication)(int argc, char *argv[]), int argc, c
         if (const auto env = std::getenv("OPENMW_DISABLE_CRASH_CATCHER"); env == nullptr || std::atol(env) == 0)
         {
 #if defined(_WIN32)
-            const std::string crashLogName = Misc::StringUtils::lowerCase(appName) + "-crash.dmp";
+            const std::string crashDumpName = Misc::StringUtils::lowerCase(appName) + "-crash.dmp";
-            Crash::CrashCatcher crashy(argc, argv, (boost::filesystem::temp_directory_path() / crashLogName).make_preferred().string());
+            const std::string freezeDumpName = Misc::StringUtils::lowerCase(appName) + "-freeze.dmp";
+            boost::filesystem::path dumpDirectory = boost::filesystem::temp_directory_path();
+            PWSTR userProfile = nullptr;
+            if (SUCCEEDED(SHGetKnownFolderPath(FOLDERID_Profile, 0, nullptr, &userProfile)))
+            {
+                dumpDirectory = userProfile;
+            }
+            CoTaskMemFree(userProfile);
+            Crash::CrashCatcher crashy(argc, argv, (dumpDirectory / crashDumpName).make_preferred().string(), (dumpDirectory / freezeDumpName).make_preferred().string());
 #else
             const std::string crashLogName = Misc::StringUtils::lowerCase(appName) + "-crash.log";
             // install the crash handler as soon as possible. note that the log path