openVCB/openVCBMain.cpp at main · roflcopter4/openVCB · GitHub

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#include "openVCB.h"

#ifndef NDEBUG
# ifndef _DEBUG
#  define _DEBUG
# endif
#endif


/*--------------------------------------------------------------------------------------*/
namespace openVCB::util {

UU static FILE *log = nullptr;

void logf(UU PRINTF_FORMAT_STRING format, ...)
{
#ifdef _DEBUG
    if (!log)
        return;
    va_list ap;
    va_start(ap, format);
    (void)vfprintf(log, format, ap);
    va_end(ap);
    (void)fputc('\n', log);
    (void)fflush(log);
#endif
}

void logs(UU _In_z_ char const *msg, UU size_t len)
{
#ifdef _DEBUG
    if (!log)
        return;
    (void)fwrite(msg, 1, len, log);
    (void)fputc('\n', log);
#endif
}

void logs(UU _In_z_ char const *msg)
{
#ifdef _DEBUG
    if (!log)
        return;
    (void)fputs(msg, log);
    (void)fputc('\n', log);
#endif
}

} // namespace openVCB::util
/*--------------------------------------------------------------------------------------*/


#ifdef _WIN32
# ifndef WIN32_LEAN_AND_MEAN
#  define WIN32_LEAN_AND_MEAN 1
# endif
# include <Windows.h>

BOOL WINAPI
DllMain(UU HINSTANCE inst, DWORD fdwReason, LPVOID)
{
    using namespace std::literals;

    switch (fdwReason) {
    case DLL_PROCESS_ATTACH: {
# ifdef _DEBUG
        (void)::_set_abort_behavior(0, _WRITE_ABORT_MSG);
        (void)::signal(SIGABRT, [](int) {});

        wchar_t fname[2048];
        if (::GetModuleFileNameW(inst, fname, std::size(fname)) == 0) {
            ::MessageBoxW(nullptr, L"Error determining openVCB.dll file path.", L"ERROR", MB_OK);
            ::exit(1);
        }
        auto path = absolute(std::filesystem::path(fname)).parent_path();
        path /= L"OpenVCB.log"sv;

        if (_wfopen_s(&openVCB::util::log, path.c_str(), L"w") != 0) {
            ::MessageBoxW(nullptr, L"Error opening openVCB.dll log file.", L"ERROR", MB_OK);
            ::exit(1);
        }
# endif
        break;
    }

    case DLL_PROCESS_DETACH:
# ifdef _DEBUG
        if (openVCB::util::log)
            (void)fclose(openVCB::util::log);
        break;
# endif

    case DLL_THREAD_ATTACH:
    case DLL_THREAD_DETACH:
    default:
        break;
    }

    return TRUE;
}
#endif