sir_once_fn 122 src/libsir/include/sir/internal.h bool _sir_once(sir_once* once, sir_once_fn func); sir_once_fn 594 src/libsir/include/sir/platform.h typedef void (*sir_once_fn)(void); sir_once_fn 640 src/libsir/include/sir/platform.h typedef BOOL(CALLBACK* sir_once_fn)(PINIT_ONCE, PVOID, PVOID*); sir_once_fn 543 src/libsir/src/sirinternal.c bool _sir_once(sir_once* once, sir_once_fn func) {