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uldaq: fix buffering issue

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This commit is contained in:
Steffen Vogel 2020-10-12 17:43:30 +02:00
parent 29f3b23eb3
commit fe69d015f0
1 changed files with 1 additions and 2 deletions
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3
lib/nodes/uldaq.cpp
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@ -607,14 +607,13 @@ int uldaq_read(struct vnode *n, struct sample *smps[], unsigned cnt, unsigned *r
pthread_mutex_lock(&u->in.mutex);
if (u->in.status != SS_RUNNING)
return -1;
size_t start_index = u->in.buffer_pos;
/* Wait for data available condition triggered by event callback */
if (start_index + n->in.vectorize * u->in.channel_count > u->in.transfer_status.currentScanCount)
if (start_index + n->in.vectorize * u->in.channel_count > u->in.transfer_status.currentTotalCount)
pthread_cond_wait(&u->in.cv, &u->in.mutex);
for (unsigned j = 0; j < cnt; j++) {