diff options
Diffstat (limited to 'src/vppinfra/tw_timer_template.c')
| -rw-r--r-- | src/vppinfra/tw_timer_template.c | 116 |
1 files changed, 110 insertions, 6 deletions
diff --git a/src/vppinfra/tw_timer_template.c b/src/vppinfra/tw_timer_template.c index c0a9685aa82..aba00142051 100644 --- a/src/vppinfra/tw_timer_template.c +++ b/src/vppinfra/tw_timer_template.c @@ -18,6 +18,87 @@ * * */ +#if TW_START_STOP_TRACE_SIZE > 0 + +void TW (tw_timer_trace) (TWT (tw_timer_wheel) * tw, u32 timer_id, + u32 pool_index, u32 handle) +{ + TWT (trace) * t = &tw->traces[tw->trace_index]; + + t->timer_id = timer_id; + t->pool_index = pool_index; + t->handle = handle; + + tw->trace_index++; + if (tw->trace_index == TW_START_STOP_TRACE_SIZE) + { + tw->trace_index = 0; + tw->trace_wrapped++; + } +} + +void TW (tw_search_trace) (TWT (tw_timer_wheel) * tw, u32 handle) +{ + u32 i, start_pos; + TWT (trace) * t; + char *s = "bogus!"; + + /* reverse search for the supplied handle */ + + start_pos = tw->trace_index; + if (start_pos == 0) + start_pos = TW_START_STOP_TRACE_SIZE - 1; + else + start_pos--; + + for (i = start_pos; i > 0; i--) + { + t = &tw->traces[i]; + if (t->handle == handle) + { + switch (t->timer_id) + { + case 0xFF: + s = "stopped"; + break; + case 0xFE: + s = "expired"; + break; + default: + s = "started"; + break; + } + fformat (stderr, "handle 0x%x (%d) %s at trace %d\n", + handle, handle, s, i); + } + } + if (tw->trace_wrapped > 0) + { + for (i = TW_START_STOP_TRACE_SIZE; i >= tw->trace_index; i--) + { + t = &tw->traces[i]; + if (t->handle == handle) + { + switch (t->timer_id) + { + case 0xFF: + s = "stopped"; + break; + case 0xFE: + s = "expired"; + break; + default: + s = "started"; + break; + } + fformat (stderr, "handle 0x%x (%d) %s at trace %d\n", + handle, handle, s, i); + } + } + } +} +#endif /* TW_START_STOP_TRACE_SIZE > 0 */ + static inline u32 TW (make_internal_timer_handle) (u32 pool_index, u32 timer_id) { @@ -127,6 +208,9 @@ TW (tw_timer_start) (TWT (tw_timer_wheel) * tw, u32 pool_index, u32 timer_id, t->expiration_time = tw->current_tick + interval; ts = &tw->overflow; timer_addhead (tw->timers, ts->head_index, t - tw->timers); +#if TW_START_STOP_TRACE_SIZE > 0 + TW (tw_timer_trace) (tw, timer_id, pool_index, t - tw->timers); +#endif return t - tw->timers; } #endif @@ -177,7 +261,9 @@ TW (tw_timer_start) (TWT (tw_timer_wheel) * tw, u32 pool_index, u32 timer_id, ts = &tw->w[TW_TIMER_RING_GLACIER][glacier_ring_offset]; timer_addhead (tw->timers, ts->head_index, t - tw->timers); - +#if TW_START_STOP_TRACE_SIZE > 0 + TW (tw_timer_trace) (tw, timer_id, pool_index, t - tw->timers); +#endif return t - tw->timers; } #endif @@ -193,7 +279,9 @@ TW (tw_timer_start) (TWT (tw_timer_wheel) * tw, u32 pool_index, u32 timer_id, ts = &tw->w[TW_TIMER_RING_SLOW][slow_ring_offset]; timer_addhead (tw->timers, ts->head_index, t - tw->timers); - +#if TW_START_STOP_TRACE_SIZE > 0 + TW (tw_timer_trace) (tw, timer_id, pool_index, t - tw->timers); +#endif return t - tw->timers; } #else @@ -209,6 +297,9 @@ TW (tw_timer_start) (TWT (tw_timer_wheel) * tw, u32 pool_index, u32 timer_id, tw->fast_slot_bitmap = clib_bitmap_set (tw->fast_slot_bitmap, fast_ring_offset, 1); #endif +#if TW_START_STOP_TRACE_SIZE > 0 + TW (tw_timer_trace) (tw, timer_id, pool_index, t - tw->timers); +#endif return t - tw->timers; } @@ -265,6 +356,9 @@ void TW (tw_timer_stop) (TWT (tw_timer_wheel) * tw, u32 handle) if (pool_is_free_index (tw->timers, handle)) return; #endif +#if TW_START_STOP_TRACE_SIZE > 0 + TW (tw_timer_trace) (tw, ~0, ~0, handle); +#endif t = pool_elt_at_index (tw->timers, handle); @@ -302,6 +396,7 @@ TW (tw_timer_wheel_init) (TWT (tw_timer_wheel) * tw, tw->timer_interval = timer_interval_in_seconds; tw->ticks_per_second = 1.0 / timer_interval_in_seconds; tw->first_expires_tick = ~0ULL; + vec_validate (tw->expired_timer_handles, 0); _vec_len (tw->expired_timer_handles) = 0; @@ -476,6 +571,9 @@ static inline new_glacier_ring_offset == 0)) { vec_add1 (callback_vector, t->user_handle); +#if TW_START_STOP_TRACE_SIZE > 0 + TW (tw_timer_trace) (tw, 0xfe, ~0, t - tw->timers); +#endif pool_put (tw->timers, t); } /* Timer moves to the glacier ring */ @@ -536,6 +634,9 @@ static inline t->fast_ring_offset == 0)) { vec_add1 (callback_vector, t->user_handle); +#if TW_START_STOP_TRACE_SIZE > 0 + TW (tw_timer_trace) (tw, 0xfe, ~0, t - tw->timers); +#endif pool_put (tw->timers, t); } /* Timer expires during slow-wheel tick 0 */ @@ -587,6 +688,9 @@ static inline if (PREDICT_FALSE (t->fast_ring_offset == 0)) { vec_add1 (callback_vector, t->user_handle); +#if TW_START_STOP_TRACE_SIZE > 0 + TW (tw_timer_trace) (tw, 0xfe, ~0, t - tw->timers); +#endif pool_put (tw->timers, t); } else /* typical case */ @@ -620,6 +724,9 @@ static inline t = pool_elt_at_index (tw->timers, next_index); next_index = t->next; vec_add1 (callback_vector, t->user_handle); +#if TW_START_STOP_TRACE_SIZE > 0 + TW (tw_timer_trace) (tw, 0xfe, ~0, t - tw->timers); +#endif pool_put (tw->timers, t); } @@ -628,10 +735,7 @@ static inline { /* The callback is optional. We return the u32 * handle vector */ if (tw->expired_timer_callback) - { - tw->expired_timer_callback (callback_vector); - _vec_len (callback_vector) = 0; - } + tw->expired_timer_callback (callback_vector); tw->expired_timer_handles = callback_vector; } |