Function outOfMemory

flow/Platform.actor.cpp:3108–3207

namespace platform {

void outOfMemory() {
#ifdef ALLOC_INSTRUMENTATION
	delete[] g_extra_memory;
	std::vector<std::pair<std::string, const char*>> typeNames;
	for (auto i = allocInstr.begin(); i != allocInstr.end(); ++i) {
		std::string s;
#ifdef __linux__
		char* demangled = abi::__cxa_demangle(i->first, nullptr, nullptr, nullptr);
		if (demangled) {
			s = demangled;
			if (StringRef(s).startsWith(LiteralStringRef("(anonymous namespace)::")))
				s = s.substr(LiteralStringRef("(anonymous namespace)::").size());
			free(demangled);
		} else
			s = i->first;
#else
		s = i->first;
		if (StringRef(s).startsWith(LiteralStringRef("class `anonymous namespace'::")))
			s = s.substr(LiteralStringRef("class `anonymous namespace'::").size());
		else if (StringRef(s).startsWith(LiteralStringRef("class ")))
			s = s.substr(LiteralStringRef("class ").size());
		else if (StringRef(s).startsWith(LiteralStringRef("struct ")))
			s = s.substr(LiteralStringRef("struct ").size());
#endif
		typeNames.emplace_back(s, i->first);
	}
	std::sort(typeNames.begin(), typeNames.end());
	for (int i = 0; i < typeNames.size(); i++) {
		const char* n = typeNames[i].second;
		auto& f = allocInstr[n];
		if (f.maxAllocated > 10000)
			TraceEvent("AllocInstrument")
			    .detail("CurrentAlloc", f.allocCount - f.deallocCount)
			    .detail("Name", typeNames[i].first.c_str());
	}

	std::unordered_map<uint32_t, BackTraceAccount> traceCounts;
	size_t memSampleSize;
	memSample_entered = true;
	{
		ThreadSpinLockHolder holder(memLock);
		traceCounts = backTraceLookup;
		memSampleSize = memSample.size();
	}
	memSample_entered = false;

	TraceEvent("MemSampleSummary")
	    .detail("InverseByteSampleRatio", SAMPLE_BYTES)
	    .detail("MemorySamples", memSampleSize)
	    .detail("BackTraces", traceCounts.size());

	for (auto i = traceCounts.begin(); i != traceCounts.end(); ++i) {
		char buf[1024];
		std::vector<void*>* frames = i->second.backTrace;
		std::string backTraceStr;
#if defined(_WIN32)
		for (int j = 1; j < frames->size(); j++) {
			_snprintf(buf, 1024, "%p ", frames->at(j));