Function GetStringPtr

Tools/etw_list/etw_list.cpp:80–90

Trace information (e.g., TRACE_PROVIDER_INFO) is provided in memory blocks where string members are specified as an offset from the base of the allocation. NOTE: in practice, some fields have tailing spaces (in particular Event::opcodeName_ and Event::layerName_ are typical) so we strip those here too.

// Event::opcodeName_ and Event::layerName_ are typical) so we strip those here
// too.
wchar_t const* GetStringPtr(void* base, ULONG offset)
{
    wchar_t* s = nullptr;
    if (offset > 0) {
        s = (wchar_t*) ((uintptr_t) base + offset);
        for (auto n = wcslen(s); n-- && s[n] == L' '; ) {
            s[n] = '\0';
        }
    }
    return s;
}


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