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Fix potential hang in QR reader

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This commit is contained in:
Alex Taber
2020-12-23 16:51:57 -05:00
parent a2b6eb94e4
commit 573b7d35e6
1 changed files with 2 additions and 2 deletions
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4
source/camera.c
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@@ -41,7 +41,7 @@ static void start_read(qr_data *data)
LightLock_Lock(&data->mut); LightLock_Lock(&data->mut);
while(data->writer_waiting || data->writer_active) while(data->writer_waiting || data->writer_active)
{ {
CondVar_Wait(&data->cond, &data->mut); CondVar_WaitTimeout(&data->cond, &data->mut, 1000000);
} }
AtomicIncrement(&data->num_readers_active); AtomicIncrement(&data->num_readers_active);
@@ -64,7 +64,7 @@ static void start_write(qr_data *data)
while(data->num_readers_active) while(data->num_readers_active)
{ {
CondVar_Wait(&data->cond, &data->mut); CondVar_WaitTimeout(&data->cond, &data->mut, 1000000);
} }
data->writer_waiting = false; data->writer_waiting = false;