struct lttng_ust_shm_handle *handle = ctx->handle;
struct lttng_ust_lib_ring_buffer *buf;
unsigned long o_begin, o_end, o_old;
struct lttng_ust_shm_handle *handle = ctx->handle;
struct lttng_ust_lib_ring_buffer *buf;
unsigned long o_begin, o_end, o_old;