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Gracefully fallback when io_uring fails to initialize

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Luke Street 2025-10-07 14:16:23 -06:00
parent 061228c971
commit 430b6bfc9d
1 changed files with 4 additions and 4 deletions
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8
src/async_io.cpp
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@ -6,7 +6,7 @@ namespace {
std::unique_ptr<wibo::AsyncIOBackend> g_backend; std::unique_ptr<wibo::AsyncIOBackend> g_backend;
class DummyBackend : public wibo::AsyncIOBackend { class NoOpBackend : public wibo::AsyncIOBackend {
public: public:
bool init() override { return true; } bool init() override { return true; }
void shutdown() override {} void shutdown() override {}
@ -43,12 +43,12 @@ AsyncIOBackend &asyncIO() {
#if WIBO_ENABLE_LIBURING #if WIBO_ENABLE_LIBURING
g_backend = detail::createIoUringBackend(); g_backend = detail::createIoUringBackend();
#else #else
g_backend = std::make_unique<DummyBackend>(); g_backend = std::make_unique<NoOpBackend>();
#endif #endif
} }
if (!g_backend->init()) { if (!g_backend->init()) {
fprintf(stderr, "asyncIO: failed to initialize backend\n"); DEBUG_LOG("AsyncIOBackend initialization failed; using no-op backend\n");
abort(); g_backend = std::make_unique<NoOpBackend>();
} }
return *g_backend; return *g_backend;
} }