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-rw-r--r--src/InputZeroMQReader.cpp32
1 files changed, 30 insertions, 2 deletions
diff --git a/src/InputZeroMQReader.cpp b/src/InputZeroMQReader.cpp
index 8706e1e..e95644a 100644
--- a/src/InputZeroMQReader.cpp
+++ b/src/InputZeroMQReader.cpp
@@ -41,6 +41,7 @@
#include "porting.h"
#include "InputReader.h"
#include "PcDebug.h"
+#include "Utils.h"
#define NUM_FRAMES_PER_ZMQ_MESSAGE 4
/* A concatenation of four ETI frames,
@@ -86,7 +87,34 @@ int InputZeroMQReader::GetNextFrame(void* buffer)
const size_t framesize = 6144;
boost::shared_ptr<std::vector<uint8_t> > incoming;
- in_messages_.wait_and_pop(incoming);
+
+ struct timespec time_before;
+ int time_before_ret = clock_gettime(CLOCK_MONOTONIC, &time_before);
+
+ /* Do some prebuffering because reads will happen in bursts
+ * (4 ETI frames in TM1) and we should make sure that
+ * we can serve the data required for a full transmission frame.
+ */
+ if (in_messages_.size() < 4) {
+ const size_t prebuffering = 10;
+ in_messages_.wait_and_pop(incoming, prebuffering);
+ }
+ else {
+ in_messages_.wait_and_pop(incoming);
+ }
+
+ struct timespec time_after;
+ int time_after_ret = clock_gettime(CLOCK_MONOTONIC, &time_after);
+
+ if (time_before_ret == 0 and time_after_ret == 0) {
+ etiLog.level(debug) << "ZMQ Time delta : " <<
+ timespecdiff_us(time_before, time_after) << " us, queue " <<
+ in_messages_.size();
+ }
+ else {
+ etiLog.level(error) << "ZMQ Time delta failed " <<
+ time_before_ret << " " << time_after_ret;
+ }
if (! workerdata_.running) {
throw zmq_input_overflow();
@@ -193,7 +221,7 @@ void InputZeroMQWorker::RecvProcess(struct InputZeroMQThreadData* workerdata)
}
if (queue_size < 5) {
- etiLog.level(warn) << "ZeroMQ buffer low: " << queue_size << "elements !";
+ etiLog.level(warn) << "ZeroMQ buffer low: " << queue_size << " elements !";
}
}
}