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- stats-shm-volley, the array is inited for a new round if one or more

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W.C.A. Wijngaards
2026-02-20 12:00:56 +01:00
parent 1f24a5b7af
commit fcdec027e1
1 changed files with 13 additions and 2 deletions
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util/shm_side/shm_main.c
+13 -2
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@@ -287,7 +287,8 @@ shm_general_info(struct worker* worker)
/** See if the thread is first. Caller has lock. */
static int
shm_thread_is_first(struct shm_main_info* shm_info, int thread_num)
shm_thread_is_first(struct shm_main_info* shm_info, int thread_num,
struct daemon* daemon)
{
/* The usual method, all thread executed last time, and there
* is no statistics in progress. */
@@ -299,6 +300,16 @@ shm_thread_is_first(struct shm_main_info* shm_info, int thread_num)
* so this thread must be the first of this new round without that
* other thread. */
if(shm_info->thread_volley[thread_num] != 0) {
/* The new round starts and zeroes the total. The previous
* partial total is discarded. That means while a thread
* is performing a long task, eg. loading a large zone perhaps,
* the total is not updated and stays the same in the
* shared memory area. Once that thread performs the statistic
* callback again, the total is updated again.
* The threads busy with long tasks have 0 in the array.
* The array is inited for a new round. */
memset(shm_info->thread_volley, 0,
((size_t)daemon->num) * sizeof(int));
return 1;
}
return 0;
@@ -342,7 +353,7 @@ void shm_main_run(struct worker *worker)
/* Lock the lock and see if this thread is first or last of the
* stat threads. It can then zero value or sum up values. */
lock_basic_lock(&shm_info->lock);
if(shm_thread_is_first(shm_info, worker->thread_num)) {
if(shm_thread_is_first(shm_info, worker->thread_num, worker->daemon)) {
/* First thread, zero fill total. */
memset(&shm_info->total_in_progress, 0,
sizeof(struct ub_stats_info));