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[FreeRTOS Home] [Live FreeRTOS Forum] [FAQ] [Archive Top] [October 2004 Threads] a bug in list.hPosted by russot hw on October 28, 2004 in line #157: "if( ( pxList )->pxIndex == ( pxList )->pxHead )" should be: "if( ( pxList )->pxIndex->next == ( pxList )->pxHead )"
this means that current iteration is tail_node;
RE: a bug in list.hPosted by Richard on October 28, 2004 I cannot see anything wrong as below:
// Increment to the next item in the list ( pxList )->pxIndex = ( pxList )->pxIndex->pxNext;
// We don't want to point to the head marker as // it is just a marker and not a genuine list item. // If we have incremented to the head then ... if( ( pxList )->pxIndex == ( pxList )->pxHead ) { // ... increment again. This will take us to the // first item in the list. ( pxList )->pxIndex = ( pxList )->pxIndex->pxNext; }
// Return the owner of the index - which will // now not be the list head marker. pxTCB = ( volatile tskTCB * ) ( pxList )->pxIndex->pvOwner;
This line is fundamental to the scheduler and if wrong nothing would work - although I am open to counter arguments....
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