OSSchedRoundRobinCfg()

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void OSSchedRoundRobinCfg (CPU_BOOLEAN en,

OS_TICK dflt_time_quanta,

OS_ERR *p_err)

File	Called from	Code enabled by
os_core.c	Task or startup code	OS_CFG_SCHED_ROUND_ROBIN_EN

OSSchedRoundRobinCfg() is used to enable or disable round-robin scheduling.

Arguments

en

when set to DEF_ENABLED enables round-robin scheduling, and when set to DEF_DISABLED disables it.

dflt_time_quanta

is the default time quanta given to a task. This value is used when a task is created and you specify a value of 0 for the time quanta. In other words, if the user did not specify a non-zero for the task’s time quanta, this is the value that will be used. If passing 0 for this argument, µC/OS-III will assume a time quanta of 1/10 the tick rate. For example, if the tick rate is 1000 Hz and 0 is passed for dflt_time_quanta then, µC/OS-III will set the time quanta to 10 milliseconds.

p_err

is a pointer to a variable that is used to hold an error code:

OS_ERR_NONE

if the call is successful.

Returned Value

None

Notes/Warnings

None

Example

void main (void)

{

OS_ERR err;

:

OSInit(&err); /* Initialize µC/OS-III */

:

OSSchedRoundRobinCfg(DEF_ENABLED,

10,

&err);

/* Check “err” */

:

OSStart(&err); /* Start Multitasking */

}