len0rd/FreeRTOS-Kernel
1
0
Fork 0
mirror of https://github.com/FreeRTOS/FreeRTOS-Kernel.git synced 2025-04-19 21:11:57 -04:00
Code Issues Packages Projects Releases Wiki Activity

Allow the task priorities to be overwritten.

Browse source
This commit is contained in:
Richard Barry 2008-11-16 19:21:25 +00:00
parent 90ac00641c
commit 4b141c691e
1 changed files with 22 additions and 17 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

39
Demo/Common/Minimal/blocktim.c
View file

@ -37,13 +37,13 @@
Please ensure to read the configuration and relevant port sections of the
online documentation.
http://www.FreeRTOS.org - Documentation, latest information, license and
http://www.FreeRTOS.org - Documentation, latest information, license and
contact details.
http://www.SafeRTOS.com - A version that is certified for use in safety
http://www.SafeRTOS.com - A version that is certified for use in safety
critical systems.
http://www.OpenRTOS.com - Commercial support, development, porting,
http://www.OpenRTOS.com - Commercial support, development, porting,
licensing and training services.
*/
@ -61,9 +61,14 @@
/* Demo includes. */
#include "blocktim.h"
/* Task priorities. */
#define bktPRIMARY_PRIORITY ( 3 )
#define bktSECONDARY_PRIORITY ( 2 )
/* Task priorities. Allow these to be overridden. */
#ifndef bktPRIMARY_PRIORITY
#define bktPRIMARY_PRIORITY ( 3 )
#endif
#ifndef bktSECONDARY_PRIORITY
#define bktSECONDARY_PRIORITY ( 2 )
#endif
/* Task behaviour. */
#define bktQUEUE_LENGTH ( 5 )
@ -101,10 +106,10 @@ void vCreateBlockTimeTasks( void )
xTestQueue = xQueueCreate( bktQUEUE_LENGTH, sizeof( portBASE_TYPE ) );
/* vQueueAddToRegistry() adds the queue to the queue registry, if one is
in use. The queue registry is provided as a means for kernel aware
in use. The queue registry is provided as a means for kernel aware
debuggers to locate queues and has no purpose if a kernel aware debugger
is not being used. The call to vQueueAddToRegistry() will be removed
by the pre-processor if configQUEUE_REGISTRY_SIZE is not defined or is
by the pre-processor if configQUEUE_REGISTRY_SIZE is not defined or is
defined to be less than 1. */
vQueueAddToRegistry( xTestQueue, ( signed portCHAR * ) "Block_Time_Queue" );
@ -135,7 +140,7 @@ portTickType xTimeToBlock, xBlockedTime;
xTimeToBlock = bktPRIMARY_BLOCK_TIME << xItem;
xTimeWhenBlocking = xTaskGetTickCount();
/* We should unblock after xTimeToBlock having not received
anything on the queue. */
if( xQueueReceive( xTestQueue, &xData, xTimeToBlock ) != errQUEUE_EMPTY )
@ -186,7 +191,7 @@ portTickType xTimeToBlock, xBlockedTime;
xTimeToBlock = bktPRIMARY_BLOCK_TIME << xItem;
xTimeWhenBlocking = xTaskGetTickCount();
/* We should unblock after xTimeToBlock having not received
anything on the queue. */
if( xQueueSend( xTestQueue, &xItem, xTimeToBlock ) != errQUEUE_FULL )
@ -240,7 +245,7 @@ portTickType xTimeToBlock, xBlockedTime;
for( xItem = 0; xItem < bktQUEUE_LENGTH; xItem++ )
{
/* Now when we make space on the queue the other task should wake
but not execute as this task has higher priority. */
but not execute as this task has higher priority. */
if( xQueueReceive( xTestQueue, &xData, bktDONT_BLOCK ) != pdPASS )
{
xErrorOccurred = pdTRUE;
@ -274,7 +279,7 @@ portTickType xTimeToBlock, xBlockedTime;
}
/* Set the priority back down. */
vTaskPrioritySet( xSecondary, bktSECONDARY_PRIORITY );
vTaskPrioritySet( xSecondary, bktSECONDARY_PRIORITY );
}
/* Let the other task timeout. When it unblockes it will check that it
@ -301,7 +306,7 @@ portTickType xTimeToBlock, xBlockedTime;
xErrorOccurred = pdTRUE;
}
}
/* Wake the other task so it blocks attempting to read from the
already empty queue. */
vTaskResume( xSecondary );
@ -317,7 +322,7 @@ portTickType xTimeToBlock, xBlockedTime;
for( xItem = 0; xItem < bktQUEUE_LENGTH; xItem++ )
{
/* Now when we place an item on the queue the other task should
wake but not execute as this task has higher priority. */
wake but not execute as this task has higher priority. */
if( xQueueSend( xTestQueue, &xItem, bktDONT_BLOCK ) != pdPASS )
{
xErrorOccurred = pdTRUE;
@ -349,7 +354,7 @@ portTickType xTimeToBlock, xBlockedTime;
queue function. */
xErrorOccurred = pdTRUE;
}
vTaskPrioritySet( xSecondary, bktSECONDARY_PRIORITY );
vTaskPrioritySet( xSecondary, bktSECONDARY_PRIORITY );
}
/* Let the other task timeout. When it unblockes it will check that it
@ -387,7 +392,7 @@ portBASE_TYPE xData;
full so we block. Note the time before we block so we can check the
wake time is as per that expected. */
xTimeWhenBlocking = xTaskGetTickCount();
/* We should unblock after bktTIME_TO_BLOCK having not received
anything on the queue. */
xData = 0;
@ -423,7 +428,7 @@ portBASE_TYPE xData;
As per test three, but with the send and receive reversed. */
xTimeWhenBlocking = xTaskGetTickCount();
/* We should unblock after bktTIME_TO_BLOCK having not received
anything on the queue. */
xRunIndicator = bktRUN_INDICATOR;