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• Announcing Long Term Support in Piwik 2 – The analytics platform for your mission critical projects

  11 janvier 2016, par Matthieu Aubry — About, Development

  We are proud to announce our Long Term Support (LTS) for Piwik 2.X !

  Why Long Term Support (LTS) ?

  Part of our mission is to ready Piwik for the enterprise — and ready the enterprise for Piwik. Our fast release cycle and our ability to quickly innovate has served us well for the past seven years and has lead Piwik to being one of the most popular open source projects, used by over one million websites worldwide. But Piwik’s success today has also shown us that this fast release cycle is not suited for all users and customers. Like most large open source projects (such as Ubuntu, Firefox, Debian, Symfony, Node.js, etc.) at Piwik we now also offer a Long Term Support release which gives users the confidence that Piwik can be used for mission critical projects for months to come.

  What does LTS mean for Piwik ?

  For the duration of the LTS period, Piwik 2.X will continue to receive the following fixes :

  • Critical bugs causing data loss or data corruption.
  • Major and Critical security issues.

  Our goal is to offer you a Piwik LTS release that you can trust for all your mission critical projects.

  How long will Piwik 2.X be supported ?

  Piwik 2.X will be supported for at least 12 months after the initial release of Piwik 3.0.0.
  Piwik 3.0.0 is expected to be released in the second half of 2016.
  This means that Piwik 2.X will be supported at least until the second half of 2017.

  Which Piwik version is LTS ?

  The latest Piwik 2.16.X release is our Long Term Support version.

  How do I benefit from the LTS version ?

  To get the full benefits of Piwik LTS, please make sure you are using the latest LTS version. First, update to the latest Piwik 2.X version, then Configure Piwik to use the LTS release channel and then update to the latest LTS version.

  How do I configure Piwik to use the LTS version ?

  By default, Piwik will not use the LTS version. When you use the one-click update your Piwik instance will be updated to the very latest release : when Piwik 3.0.0 will be released, the one click update will update your instance to 3.0.0. It is however possible to configure your Piwik so that you will stay on Piwik 2.X and keep using the LTS Long Term Support version :

  • Login Piwik as the Super User,
  • Go to Settings > General > Update settings,
  • Under “Release channel” click “Latest stable 2.X Long Term Support version”, and click “Save”.
    

  How do I get professional Piwik Support ?

  If you need professional support for your Piwik service get in touch with the Piwik experts.

  ---

  For other questions, feedback or discussion, feel free to join our forums and comment on this LTS forum post.

  We wish you all a fantastic year 2016 !

• UDP Networking - SO_REUSEADDR and select failing on Windows

  22 janvier 2019, par Luca

  I’m trying to set up multiple instances of FFMpeg for receiving a MPEG 2 TS stream. Both application setup the SO_REUSEADDR socket option.

  The UDP socket bind is successful, but only the first FFMpeg instance is actually receiving. As soon as the receiving instance is closed, the second instance starts receiving.

  I’ve set up a unit test demonstrating the actual FFMpeg behavior, extracting the actual system calls executed. The test is failing because the select call does not detect an I/O event on the second socket.

  What prevents the second socket to receive the datagram ?

  Note : this is a Google Test test. Just replace the TEST macro with a main function to get it working.

  #include 
  
  #include 
  
  
  
  #pragma comment(lib, "ws2_32.lib")
  
  
  
  typedef unsigned long nfds_t;
  
  
  
  int FFMPEGSocket_CreateSocketTx()
  
  {
  
      return socket(AF_INET, SOCK_DGRAM, 0);
  
  }
  
  
  
  int FFMPEGSocket_CreateSocket()
  
  {
  
      // Create socket
  
      int fd = socket(AF_INET, SOCK_DGRAM, 0);
  
  
  
      EXPECT_GT(fd, 0);
  
  
  
      // Set SO_REUSEADDR
  
      int reuse_socket = 1;
  
  
  
      EXPECT_EQ(setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char*)&reuse_socket, sizeof(reuse_socket)), 0);
  
  
  
      // Bind
  
      struct sockaddr_in udpService;
  
  
  
      udpService.sin_family = AF_INET;
  
      udpService.sin_addr.s_addr = htonl(INADDR_ANY);
  
      udpService.sin_port = htons(4609);
  
  
  
      EXPECT_EQ(::bind(fd, (SOCKADDR*)&udpService, sizeof(udpService)), 0);
  
  
  
      // Set non blocking IO
  
      u_long param = 1;
  
  
  
      EXPECT_EQ(ioctlsocket(fd, FIONBIO, &param), 0);
  
  
  
      return fd;
  
  }
  
  
  
  void FFMPEGSocket_CloseSocket(int fd)
  
  {
  
      closesocket(fd);
  
  }
  
  
  
  int FFMPEGSocket_Pool(struct pollfd *fds, nfds_t numfds, int timeout)
  
  {
  
      fd_set read_set;
  
      fd_set write_set;
  
      fd_set exception_set;
  
      nfds_t i;
  
      int n = 0;
  
      int rc;
  
  
  
      FD_ZERO(&read_set);
  
      FD_ZERO(&write_set);
  
      FD_ZERO(&exception_set);
  
  
  
      for (int i = 0; i < numfds; i++) {
  
          if (fds[i].events & POLLIN)
  
              FD_SET(fds[i].fd, &read_set);
  
          if (fds[i].events & POLLOUT)
  
              FD_SET(fds[i].fd, &write_set);
  
          if (fds[i].events & POLLERR)
  
              FD_SET(fds[i].fd, &exception_set);
  
  
  
          if (fds[i].fd >= n)
  
              n = fds[i].fd + 1;
  
      }
  
  
  
      timeval tv;
  
      tv.tv_sec = 100 / 1000;
  
      tv.tv_usec = 1000 * (100 % 1000);
  
      rc = select(n, &read_set, &write_set, &exception_set, &tv);
  
  
  
      for (int i = 0; i < numfds; i++) {
  
          fds[i].revents = 0;
  
  
  
          if (FD_ISSET(fds[i].fd, &read_set))
  
              fds[i].revents |= POLLIN;
  
          if (FD_ISSET(fds[i].fd, &write_set))
  
              fds[i].revents |= POLLOUT;
  
          if (FD_ISSET(fds[i].fd, &exception_set))
  
              fds[i].revents |= POLLERR;
  
      }
  
  
  
      return rc;
  
  }
  
  
  
  TEST(FFMPEGSocket, PosixReuseAddr)
  
  {
  
      WSADATA wsaData;
  
  
  
      // Initialize network layer
  
      std::memset(&wsaData, 0, sizeof(wsaData));
  
      WSAStartup(MAKEWORD(2, 2), &wsaData);
  
  
  
      // Create two receiving sockets
  
      int fd1 = FFMPEGSocket_CreateSocket();
  
      int fd2 = FFMPEGSocket_CreateSocket();
  
      int fdtx = FFMPEGSocket_CreateSocketTx();
  
  
  
      // Read loop
  
      int ev = POLLIN;
  
      struct pollfd p1 = { fd1, ev, 0 };
  
      struct pollfd p2 = { fd2, ev, 0 };
  
  
  
      bool p1event = false, p2event = false;
  
      char datagram[32] = { 0 };
  
  
  
      for (int i = 0; (i < 10) && (!p1event || !p2event); i++) {
  
          {   // Transmit a single datagram
  
              struct sockaddr_in udpService;
  
  
  
              udpService.sin_family = AF_INET;
  
              udpService.sin_addr.s_addr = htonl(0x7F000001);
  
              udpService.sin_port = htons(4609);
  
  
  
              sendto(fdtx, datagram, 32, 0, (const sockaddr*)&udpService, sizeof(udpService));
  
          }
  
  
  
          // Receive
  
          struct pollfd fds[2] = { p1, p2 };
  
  
  
          if (FFMPEGSocket_Pool(fds, 2, 1000) < 0)
  
              break;      // Fail
  
  
  
          if (fds[0].revents & POLLIN)
  
              p1event = true;
  
          if (fds[1].revents & POLLIN)
  
              p2event = true;
  
      }
  
  
  
      EXPECT_TRUE(p1event);
  
      EXPECT_TRUE(p2event);
  
  
  
      FFMPEGSocket_CloseSocket(fd1);
  
      FFMPEGSocket_CloseSocket(fd2);
  
  
  
      // Shutdown network layer
  
      WSACleanup();
  
  }

• Announcing Long Term Support in Piwik 2 – The analytics platform for your mission critical projects

  11 janvier 2016, par Matthieu Aubry — About, Development

  We are proud to announce our Long Term Support (LTS) for Piwik 2.X !

  Why Long Term Support (LTS) ?

  Part of our mission is to ready Piwik for the enterprise — and ready the enterprise for Piwik. Our fast release cycle and our ability to quickly innovate has served us well for the past seven years and has lead Piwik to being one of the most popular open source projects, used by over one million websites worldwide. But Piwik’s success today has also shown us that this fast release cycle is not suited for all users and customers. Like most large open source projects (such as Ubuntu, Firefox, Debian, Symfony, Node.js, etc.) at Piwik we now also offer a Long Term Support release which gives users the confidence that Piwik can be used for mission critical projects for months to come.

  What does LTS mean for Piwik ?

  For the duration of the LTS period, Piwik 2.X will continue to receive the following fixes :

  • Critical bugs causing data loss or data corruption.
  • Major and Critical security issues.

  Our goal is to offer you a Piwik LTS release that you can trust for all your mission critical projects.

  How long will Piwik 2.X be supported ?

  Piwik 2.X will be supported for at least 12 months after the initial release of Piwik 3.0.0.
  Piwik 3.0.0 is expected to be released in the second half of 2016.
  This means that Piwik 2.X will be supported at least until the second half of 2017.

  Which Piwik version is LTS ?

  The latest Piwik 2.16.X release is our Long Term Support version.

  How do I benefit from the LTS version ?

  To get the full benefits of Piwik LTS, please make sure you are using the latest LTS version. First, update to the latest Piwik 2.X version, then Configure Piwik to use the LTS release channel and then update to the latest LTS version.

  How do I configure Piwik to use the LTS version ?

  By default, Piwik will not use the LTS version. When you use the one-click update your Piwik instance will be updated to the very latest release : when Piwik 3.0.0 will be released, the one click update will update your instance to 3.0.0. It is however possible to configure your Piwik so that you will stay on Piwik 2.X and keep using the LTS Long Term Support version :

  • Login Piwik as the Super User,
  • Go to Settings > General > Update settings,
  • Under “Release channel” click “Latest stable 2.X Long Term Support version”, and click “Save”.
    

  How do I get professional Piwik Support ?

  If you need professional support for your Piwik service get in touch with the Piwik PRO experts.

  ---

  For other questions, feedback or discussion, feel free to join our forums and comment on this LTS forum post.

  We wish you all a fantastic year 2016 !