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event.c File Reference
Functions | Variables

event.c File Reference

event management implementation code of CooCox CoOS kernel. More...

Go to the source code of this file.

Functions

void CreateEventList (void)
 Create a empty list of event control block.
static void ReleaseECB (P_ECB pecb)
 Release a ECB.
P_ECB CreatEvent (U8 eventType, U8 eventSortType, void *eventPtr)
 Create a event.
StatusType DeleteEvent (P_ECB pecb, U8 opt)
 Delete a event.
void EventTaskToWait (P_ECB pecb, P_OSTCB ptcb)
 Insert a task to event wait list.
void EventTaskToRdy (P_ECB pecb)
 Move a task from event WAITING list to the DELAY list.
void RemoveEventWaittingList (P_OSTCB ptcb)
 Move a task from event wait list to the ready list.

Variables

ECB EventTbl [CFG_MAX_EVENT] = {{0}}
P_ECB FreeEventList = 0

Detailed Description

event management implementation code of CooCox CoOS kernel.

Version:
V1.1.4
Date:
2011.04.20

INTERNAL FILE,DON'T PUBLIC.

© COPYRIGHT 2009 CooCox

Definition in file event.c.

Function Documentation

void CreateEventList ( void   )

Create a empty list of event control block.

Parameters:
[in]None
[out]None
Return values:
None
Description

This function is called by OSInit() API to create a ECB list,supply a pointer to next event control block that not used.

Definition at line 40 of file event.c.

P_ECB CreatEvent ( U8  eventType,
U8  eventSortType,
void *  eventPtr 
)

Create a event.

Parameters:
[in]eventTypeThe type of event which being created.
[in]eventSortTypeEvent sort type.
[in]eventCounterEvent counter,ONLY for EVENT_TYPE_SEM.
[in]eventPtrEvent struct pointer,ONLY for Queue.Co_NULL for other event type.
[out]None
Return values:
Co_NULLInvalid pointer,create event fail.
othersPointer to event control block which had assigned right now.
Description

This function is called by CreateSem(),... to get a event control block and initial the event content.

Note:
This is a internal function of CooCox CoOS,User can't call.

Definition at line 117 of file event.c.

StatusType DeleteEvent ( P_ECB  pecb,
U8  opt 
)

Delete a event.

Parameters:
[in]pecbPointer to event control block which will be deleted.
[in]optDelete option.

  • == OPT_DEL_ANYWAY Delete event always
  • == OPT_DEL_NO_PEND Delete event only when no task pending on.
[out]None
Return values:
E_INVALID_PARAMETERParameter passed is invalid,deleted fail.
E_TASK_WAITTINGThese are one more tasks waitting event.
E_OKDelete event control block successful.
Description

This function is called to delete a event from the event wait list use specify option.

Note:
This is a internal function of Coocox CoOS,user can't call.

Definition at line 158 of file event.c.

void EventTaskToRdy ( P_ECB  pecb )

Move a task from event WAITING list to the DELAY list.

Parameters:
[in]pecbPointer to event control block corresponding to the event.
[out]None
Return values:
None
Description

This function is called to remove a task from event wait list,and then insert it into the READY list.

Definition at line 303 of file event.c.

void EventTaskToWait ( P_ECB  pecb,
P_OSTCB  ptcb 
)

Insert a task to event wait list.

Parameters:
[in]pecbPointer to event control block corresponding to the event.
[in]ptcbPointer to task that will be insert to event wait list.
[out]None
Return values:
None
Description

This function is called to insert a task by fllowing manner: opt == EVENT_SORT_TYPE_FIFO By FIFO. opt == EVENT_SORT_TYPE_PRIO By priority order,hghest priority as head,lowest priority as end. (Highest-->...-->Lowest-->Co_NULL)

Definition at line 213 of file event.c.

static void ReleaseECB ( P_ECB  pecb ) [static]

Release a ECB.

Parameters:
[in]pecbA pointer to event control block which be released.
[out]None
Return values:
None
Description

This function is called to release a event control block when a event be deleted.

Definition at line 87 of file event.c.

void RemoveEventWaittingList ( P_OSTCB  ptcb )

Move a task from event wait list to the ready list.

Parameters:
[in]pecbPointer to event control block corresponding to the event.
[out]None
Return values:
None
Description

This function is called to remove a task from event wait list,and then insert it to the ready list.

Definition at line 377 of file event.c.

Variable Documentation

ECB EventTbl[CFG_MAX_EVENT] = {{0}}

Table which save event control block.

Definition at line 24 of file event.c.

P_ECB FreeEventList = 0

Pointer to free event control block.

Definition at line 25 of file event.c.

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