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signal: avoid spamming log with hook hit messages (#550)

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## Link to GitHub Issue, if one exists
n/a

## Description of change
Some people have weird DLLs that keep calling
`AddVectoredExceptionHandler` which ends up spamming the log.

## Testing
Tested IIDX with error + signaldisable to confirm the warning message
being shown, ran Polaris Chord once to check "hook hit" message.
This commit is contained in:
bicarus
2026-02-03 20:08:15 -08:00
committed by GitHub
parent 027445afb1
commit f5a3caf536
2 changed files with 26 additions and 5 deletions
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src/spice2x/launcher/signal.cpp
+14 -5
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@@ -185,21 +185,30 @@ static LONG WINAPI TopLevelExceptionFilter(struct _EXCEPTION_POINTERS *Exception
}
static BOOL WINAPI SetConsoleCtrlHandler_hook(PHANDLER_ROUTINE pHandlerRoutine, BOOL Add) {
log_misc("signal", "SetConsoleCtrlHandler hook hit");
static std::once_flag printed;
std::call_once(printed, []() {
log_misc("signal", "SetConsoleCtrlHandler hook hit (printing once)");
});
return TRUE;
}
static LPTOP_LEVEL_EXCEPTION_FILTER WINAPI SetUnhandledExceptionFilter_hook(
LPTOP_LEVEL_EXCEPTION_FILTER lpTopLevelExceptionFilter)
{
log_info("signal", "SetUnhandledExceptionFilter hook hit");
LPTOP_LEVEL_EXCEPTION_FILTER lpTopLevelExceptionFilter) {
static std::once_flag printed;
std::call_once(printed, []() {
log_info("signal", "SetUnhandledExceptionFilter hook hit (printing once)");
});
return nullptr;
}
static PVOID WINAPI AddVectoredExceptionHandler_hook(ULONG First, PVECTORED_EXCEPTION_HANDLER Handler) {
log_info("signal", "AddVectoredExceptionHandler hook hit");
static std::once_flag printed;
std::call_once(printed, []() {
log_info("signal", "AddVectoredExceptionHandler hook hit (printing once)");
});
return launcher::signal::USE_VEH_WORKAROUND ? INVALID_HANDLE_VALUE : nullptr;
}