sdpprf_log
extern struct sdpprf_log sdpprf_log[SDPPRF_LOG_SIZE];
struct sdpprf_log *l = \
&sdpprf_log[sdpprf_log_count++ & (SDPPRF_LOG_SIZE - 1)]; \
struct sdpprf_log sdpprf_log[SDPPRF_LOG_SIZE];
struct sdpprf_log *l = v;
start_t = sdpprf_log[idx].time;
return &sdpprf_log[idx];
struct sdpprf_log *l = v;
if (l - &sdpprf_log[0] >= SDPPRF_LOG_SIZE - 1)
return &sdpprf_log[0];