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Using os_evt_get() alone ?

yann suisini

Hi,

Im using RTX kernel with the TCP Net library.
The manual says I have to do all my Tcpnet jobs in one task ...

So , I have to manage some events for each Tcp socket used. (connecting, sending data , deconnecting)
. I want to use the os_evt_wait_or() function with switch/case but the tcpnet requires a polling of main_tcp()

So is it possible to use os_evt_get() in order to avoid to much latency for the main_tcpnet to be called, like this ?

void tcp_task(void) __task
{
...
   while(1)
   {
      main_TcpNet();
      switch (os_evt_get())
      {
         case ...
         case ...
      }
   }
}

Or I have to use os_evt_wait_or() like this :

void tcp_task(void) __task
{
...
   while(1)
   {
      main_TcpNet();
      os_evt_wait_or(mask,100ms)
      switch (os_evt_get())
      {
         case ...
         case ...
      }
   }
}

Thanks in advance

  • 0

    os_evt_get() returns the list of events that caused the os_evt_wait_or to return with OS_R_EVT. If you do not call os_evt_wait_or(), os_evt_get() will not ever return any events. You may do an os_evt_wait_or(mask,0ms) with a zero time out, if it returns OS_R_EVT that means there was at least 1 event and you can do the os_evt_get() to retrieve them. (note that there may be more than one event set so that the switch directly on this value might not be the best choice)