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authorMatthias P. Braendli <matthias.braendli@mpb.li>2019-07-09 08:33:08 +0200
committerMatthias P. Braendli <matthias.braendli@mpb.li>2019-07-09 08:33:08 +0200
commit0d7cea7c74b4e80ff9fe637fc6daa305d4e01037 (patch)
tree479a9a748fb05ade78085eef8d9d7414de8ffaab /src/zmq2farsync/zmq2farsync.cpp
parent9f4230fe2977806e213b2747c9b7748763b99c0f (diff)
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Implement zmq2edi and zmq2farsync ZMQ socket reset after 10s timeout
Diffstat (limited to 'src/zmq2farsync/zmq2farsync.cpp')
-rw-r--r--src/zmq2farsync/zmq2farsync.cpp115
1 files changed, 64 insertions, 51 deletions
diff --git a/src/zmq2farsync/zmq2farsync.cpp b/src/zmq2farsync/zmq2farsync.cpp
index 16830a2..95dc074 100644
--- a/src/zmq2farsync/zmq2farsync.cpp
+++ b/src/zmq2farsync/zmq2farsync.cpp
@@ -3,7 +3,7 @@
2011, 2012 Her Majesty the Queen in Right of Canada (Communications
Research Center Canada)
- Copyright (C) 2018
+ Copyright (C) 2019
Matthias P. Braendli, matthias.braendli@mpb.li
http://www.opendigitalradio.org
@@ -28,13 +28,16 @@
#include "dabOutput/dabOutput.h"
#include "Log.h"
#include "zmq.hpp"
+#include <chrono>
#include <iostream>
+#include <thread>
#include <vector>
constexpr size_t MAX_ERROR_COUNT = 10;
+constexpr size_t MAX_NUM_RESETS = 180;
constexpr long ZMQ_TIMEOUT_MS = 1000;
-void usage(void)
+static void usage()
{
using namespace std;
@@ -46,8 +49,9 @@ void usage(void)
cerr << " <destination> is the device information for the FarSync card." << endl << endl;
cerr << " The syntax is the same as for ODR-DabMux" << endl << endl;
- cerr << "odr-zmq2edi will quit if it does not receive data for " <<
+ cerr << "The input socket will be reset if no data is received for " <<
(int)(MAX_ERROR_COUNT * ZMQ_TIMEOUT_MS / 1000.0) << " seconds." << endl;
+ cerr << "After " << MAX_NUM_RESETS << " consecutive resets, the process will quit." << endl;
cerr << "It is best practice to run this tool under a process supervisor that will restart it automatically." << endl;
}
@@ -80,72 +84,81 @@ int main(int argc, char **argv)
etiLog.level(info) << "Opening ZMQ input: " << source_url;
zmq::context_t zmq_ctx(1);
- zmq::socket_t zmq_sock(zmq_ctx, ZMQ_SUB);
-
- zmq_sock.connect(source_url);
- zmq_sock.setsockopt(ZMQ_SUBSCRIBE, NULL, 0); // subscribe to all messages
-
- etiLog.level(info) << "Entering main loop";
size_t frame_count = 0;
size_t loop_counter = 0;
- size_t error_count = 0;
- while (error_count < MAX_ERROR_COUNT)
- {
- zmq::message_t incoming;
- zmq::pollitem_t items[1];
- items[0].socket = zmq_sock;
- items[0].events = ZMQ_POLLIN;
- const int num_events = zmq::poll(items, 1, ZMQ_TIMEOUT_MS);
- if (num_events == 0) { // timeout
- error_count++;
- }
- else {
- // Event received: recv will not block
- zmq_sock.recv(&incoming);
- zmq_dab_message_t* dab_msg = (zmq_dab_message_t*)incoming.data();
-
- if (dab_msg->version != 1) {
- etiLog.level(error) << "ZeroMQ wrong packet version " << dab_msg->version;
+ size_t num_consecutive_resets = 0;
+ while (num_consecutive_resets < MAX_NUM_RESETS) {
+ zmq::socket_t zmq_sock(zmq_ctx, ZMQ_SUB);
+ zmq_sock.connect(source_url);
+ zmq_sock.setsockopt(ZMQ_SUBSCRIBE, NULL, 0); // subscribe to all messages
+
+ size_t error_count = 0;
+ while (error_count < MAX_ERROR_COUNT) {
+ zmq::message_t incoming;
+ zmq::pollitem_t items[1];
+ items[0].socket = zmq_sock;
+ items[0].events = ZMQ_POLLIN;
+ const int num_events = zmq::poll(items, 1, ZMQ_TIMEOUT_MS);
+ if (num_events == 0) { // timeout
error_count++;
}
+ else {
+ num_consecutive_resets = 0;
- int offset = sizeof(dab_msg->version) +
- NUM_FRAMES_PER_ZMQ_MESSAGE * sizeof(*dab_msg->buflen);
+ // Event received: recv will not block
+ zmq_sock.recv(&incoming);
+ zmq_dab_message_t* dab_msg = (zmq_dab_message_t*)incoming.data();
- for (int i = 0; i < NUM_FRAMES_PER_ZMQ_MESSAGE; i++) {
- if (dab_msg->buflen[i] <= 0 or dab_msg->buflen[i] > 6144) {
- etiLog.level(error) << "ZeroMQ buffer " << i << " has invalid length " <<
- dab_msg->buflen[i];
+ if (dab_msg->version != 1) {
+ etiLog.level(error) << "ZeroMQ wrong packet version " << dab_msg->version;
error_count++;
}
- else {
- std::vector<uint8_t> buf(6144, 0x55);
- const int framesize = dab_msg->buflen[i];
+ int offset = sizeof(dab_msg->version) +
+ NUM_FRAMES_PER_ZMQ_MESSAGE * sizeof(*dab_msg->buflen);
- memcpy(&buf.front(),
- ((uint8_t*)incoming.data()) + offset,
- framesize);
-
- offset += framesize;
-
- if (output.Write(&buf.front(), buf.size()) == -1) {
- etiLog.level(error) << "Cannot write to output!";
+ for (int i = 0; i < NUM_FRAMES_PER_ZMQ_MESSAGE; i++) {
+ if (dab_msg->buflen[i] <= 0 or dab_msg->buflen[i] > 6144) {
+ etiLog.level(error) << "ZeroMQ buffer " << i << " has invalid length " <<
+ dab_msg->buflen[i];
error_count++;
}
+ else {
+ std::vector<uint8_t> buf(6144, 0x55);
+
+ const int framesize = dab_msg->buflen[i];
+
+ memcpy(&buf.front(),
+ ((uint8_t*)incoming.data()) + offset,
+ framesize);
- frame_count++;
+ offset += framesize;
+
+ if (output.Write(&buf.front(), buf.size()) == -1) {
+ etiLog.level(error) << "Cannot write to output!";
+ error_count++;
+ }
+
+ frame_count++;
+ }
}
- }
- loop_counter++;
- if (loop_counter > 250) {
- etiLog.level(info) << "Transmitted " << frame_count << " ETI frames";
- loop_counter = 0;
+ loop_counter++;
+ if (loop_counter > 250) {
+ etiLog.level(info) << "Transmitted " << frame_count << " ETI frames";
+ loop_counter = 0;
+ }
}
}
+
+ num_consecutive_resets++;
+
+ zmq_sock.close();
+ std::this_thread::sleep_for(std::chrono::seconds(1));
+ etiLog.level(info) << "ZMQ input (" << source_url << ") timeout after " <<
+ num_consecutive_resets << " consecutive resets.";
}
- return error_count > 0 ? 2 : 0;
+ return 0;
}