- Adapted indenation to new agreed upon system
- Added support for second generation scriptcontext based counter
This commit is contained in:
koennecke
647
task.c
647
task.c
@@ -19,353 +19,328 @@
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#define WAITING 2
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#define YIELDING 3
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/*--------------------------------------------------------------------------*/
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typedef struct __TaskHead {
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long lID;
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int iStatus;
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long lWait;
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TaskFunc pRun;
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SignalFunc pSignal;
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void *pData;
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TaskKillFunc pKill;
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pTaskHead pNext;
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pTaskHead pPrevious;
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} TaskHead;
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typedef struct __TaskMan {
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int iID;
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int iStop;
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pTaskHead pCurrent;
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pTaskHead pHead;
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} TaskMan;
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typedef struct __TaskHead {
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long lID;
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int iStatus;
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long lWait;
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TaskFunc pRun;
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SignalFunc pSignal;
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void *pData;
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TaskKillFunc pKill;
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pTaskHead pNext;
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pTaskHead pPrevious;
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} TaskHead;
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typedef struct __TaskMan {
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int iID;
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int iStop;
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pTaskHead pCurrent;
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pTaskHead pHead;
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} TaskMan;
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/*---------------------------------------------------------------------------*/
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static long lIDMama = 0L;
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#define TASKERID 123399
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static long lIDMama = 0L;
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#define TASKERID 123399
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/*---------------------------------------------------------------------------*/
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static pTaskHead MakeTaskHead(TaskFunc pTask, SignalFunc pSignal,
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void *pData, TaskKillFunc pKill)
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{
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pTaskHead pNew = NULL;
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pNew = (pTaskHead)malloc(sizeof(TaskHead));
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if(!pNew)
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{
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return NULL;
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}
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memset(pNew,0,sizeof(TaskHead));
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pNew->pRun = pTask;
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pNew->pSignal = pSignal;
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pNew->pData = pData;
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pNew->pKill = pKill;
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pNew->lID = lIDMama++;
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pNew->iStatus = READY;
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return pNew;
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static pTaskHead MakeTaskHead(TaskFunc pTask, SignalFunc pSignal,
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void *pData, TaskKillFunc pKill)
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{
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pTaskHead pNew = NULL;
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pNew = (pTaskHead) malloc(sizeof(TaskHead));
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if (!pNew) {
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return NULL;
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}
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memset(pNew, 0, sizeof(TaskHead));
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pNew->pRun = pTask;
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pNew->pSignal = pSignal;
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pNew->pData = pData;
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pNew->pKill = pKill;
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pNew->lID = lIDMama++;
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pNew->iStatus = READY;
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return pNew;
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}
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/*--------------------------------------------------------------------------*/
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static void DeleteTaskHead(pTaskHead self)
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{
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assert(self);
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if(self->pKill)
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{
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if(self->pData)
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{
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self->pKill(self->pData);
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}
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}
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/* unlink */
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if(self->pPrevious != NULL)
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{
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self->pPrevious->pNext = self->pNext;
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}
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if(self->pNext != NULL)
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{
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self->pNext->pPrevious = self->pPrevious;
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}
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free(self);
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}
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/*--------------------------------------------------------------------------*/
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static int DummyTask(void *pData)
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{
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return 1;
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}
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/*--------------------------------------------------------------------------*/
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int TaskerInit(pTaskMan *self)
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{
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pTaskMan pNew = NULL;
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pTaskHead pDummyTask = NULL;
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*self = NULL;
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/* a new Task manager */
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pNew = (pTaskMan)malloc(sizeof(TaskMan));
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if(!pNew)
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{
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return 0;
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}
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memset(pNew, 0, sizeof(TaskMan));
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pNew->iID = TASKERID;
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/* create a dummy task as start point */
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pDummyTask = MakeTaskHead(DummyTask,NULL,NULL,NULL);
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if(!pDummyTask)
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{
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free(pNew);
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return 0;
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}
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/* link */
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pDummyTask->pNext = NULL;
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pDummyTask->pPrevious = NULL;
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pNew->pCurrent = pDummyTask;
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pNew->pHead = pDummyTask;
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*self = pNew;
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return 1;
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}
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/*---------------------------------------------------------------------------*/
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int TaskerDelete(pTaskMan *pData)
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{
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pTaskMan self = *pData;
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pTaskHead pCurrent, pKill;
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assert(self);
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assert(self->iID == TASKERID);
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pCurrent = self->pHead;
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while(pCurrent != NULL)
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{
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pKill = pCurrent;
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pCurrent = pCurrent->pNext;
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DeleteTaskHead(pKill);
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static void DeleteTaskHead(pTaskHead self)
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{
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assert(self);
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if (self->pKill) {
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if (self->pData) {
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self->pKill(self->pData);
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}
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free(self);
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*pData = NULL;
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return 1;
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}
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/*---------------------------------------------------------------------------*/
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long TaskRegister(pTaskMan self, TaskFunc pTask, SignalFunc pSignal,
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TaskKillFunc pKill, void *pData, int iPriority)
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{
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pTaskHead pNew = NULL;
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assert(self);
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assert(self->iID == TASKERID);
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assert(pTask);
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pNew = MakeTaskHead(pTask,pSignal, pData, pKill);
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if(!pNew)
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{
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return -1;
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}
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/* link it in */
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if(self->pCurrent->pNext)
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{
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self->pCurrent->pNext->pPrevious = pNew;
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}
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pNew->pPrevious = self->pCurrent;
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pNew->pNext = self->pCurrent->pNext;
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self->pCurrent->pNext = pNew;
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return pNew->lID;
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}
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/*-------------------------------------------------------------------------*/
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static void IncrTaskPointer(pTaskMan self)
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{
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self->pCurrent = self->pCurrent->pNext;
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if(self->pCurrent == NULL)
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{
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self->pCurrent = self->pHead;
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}
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}
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/*-------------------------------------------------------------------------*/
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static int TaskExist(pTaskMan self, long lID)
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{
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pTaskHead pCur = self->pHead;
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while(pCur != NULL)
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{
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if(pCur->lID == lID)
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{
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return 1;
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}
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pCur = pCur->pNext;
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}
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/* unlink */
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if (self->pPrevious != NULL) {
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self->pPrevious->pNext = self->pNext;
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}
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if (self->pNext != NULL) {
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self->pNext->pPrevious = self->pPrevious;
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}
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free(self);
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}
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/*--------------------------------------------------------------------------*/
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static int DummyTask(void *pData)
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{
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return 1;
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}
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/*--------------------------------------------------------------------------*/
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int TaskerInit(pTaskMan * self)
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{
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pTaskMan pNew = NULL;
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pTaskHead pDummyTask = NULL;
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*self = NULL;
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/* a new Task manager */
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pNew = (pTaskMan) malloc(sizeof(TaskMan));
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if (!pNew) {
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return 0;
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}
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memset(pNew, 0, sizeof(TaskMan));
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pNew->iID = TASKERID;
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/* create a dummy task as start point */
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pDummyTask = MakeTaskHead(DummyTask, NULL, NULL, NULL);
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if (!pDummyTask) {
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free(pNew);
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return 0;
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}
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/* link */
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pDummyTask->pNext = NULL;
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pDummyTask->pPrevious = NULL;
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pNew->pCurrent = pDummyTask;
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pNew->pHead = pDummyTask;
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*self = pNew;
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return 1;
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}
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/*---------------------------------------------------------------------------*/
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int TaskerDelete(pTaskMan * pData)
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{
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pTaskMan self = *pData;
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pTaskHead pCurrent, pKill;
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assert(self);
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assert(self->iID == TASKERID);
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pCurrent = self->pHead;
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while (pCurrent != NULL) {
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pKill = pCurrent;
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pCurrent = pCurrent->pNext;
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DeleteTaskHead(pKill);
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}
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free(self);
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*pData = NULL;
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return 1;
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}
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/*---------------------------------------------------------------------------*/
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long TaskRegister(pTaskMan self, TaskFunc pTask, SignalFunc pSignal,
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TaskKillFunc pKill, void *pData, int iPriority)
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{
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pTaskHead pNew = NULL;
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assert(self);
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assert(self->iID == TASKERID);
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assert(pTask);
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pNew = MakeTaskHead(pTask, pSignal, pData, pKill);
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if (!pNew) {
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return -1;
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}
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/* link it in */
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if (self->pCurrent->pNext) {
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self->pCurrent->pNext->pPrevious = pNew;
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}
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pNew->pPrevious = self->pCurrent;
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pNew->pNext = self->pCurrent->pNext;
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self->pCurrent->pNext = pNew;
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return pNew->lID;
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}
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/*-------------------------------------------------------------------------*/
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static void IncrTaskPointer(pTaskMan self)
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{
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self->pCurrent = self->pCurrent->pNext;
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if (self->pCurrent == NULL) {
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self->pCurrent = self->pHead;
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}
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}
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/*-------------------------------------------------------------------------*/
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static int TaskExist(pTaskMan self, long lID)
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{
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pTaskHead pCur = self->pHead;
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while (pCur != NULL) {
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if (pCur->lID == lID) {
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return 1;
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}
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pCur = pCur->pNext;
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}
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return 0;
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}
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/*--------------------------------------------------------------------------*/
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int TaskSchedule(pTaskMan self)
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{
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int iRet;
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pTaskHead pTemp;
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assert(self);
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assert(self->iID == TASKERID);
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/* forever, until stop is called somehow */
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while(self->iStop == 0)
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{
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if(self->pCurrent->iStatus == READY)
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{
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iRet = self->pCurrent->pRun(self->pCurrent->pData);
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if(iRet != 1)
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{
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pTemp = self->pCurrent;
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IncrTaskPointer(self);
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DeleteTaskHead(pTemp);
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}
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else
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{
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IncrTaskPointer(self);
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}
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}
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else
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{
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IncrTaskPointer(self);
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}
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}
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return 1;
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}
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/*-----------------------------------------------------------------*/
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int TaskWait(pTaskMan self, long lID)
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{
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int iRet;
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long lTest;
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pTaskHead pTemp, pEnd;
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assert(self);
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assert(self->iID == TASKERID);
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/* Cycle until lID is killed. Stop is obeyed as well */
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pEnd = self->pCurrent;
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pEnd->iStatus = WAITING;
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IncrTaskPointer(self);
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while(self->iStop == 0)
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{
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if((self->pCurrent != pEnd) && (self->pCurrent->iStatus == READY)
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&& self->pCurrent != NULL)
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/* omit ourselves! */
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{
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iRet = self->pCurrent->pRun(self->pCurrent->pData);
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if(iRet != 1)
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{
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pTemp = self->pCurrent;
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lTest = pTemp->lID;
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IncrTaskPointer(self);
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DeleteTaskHead(pTemp);
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if(lTest == lID)
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{
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goto ente;
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}
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}
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else
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{
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IncrTaskPointer(self);
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}
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}
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else
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{
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IncrTaskPointer(self);
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}
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if(self->pCurrent == self->pHead)
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{
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if(!TaskExist(self,lID))
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goto ente;
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}
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}
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ente:
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/* task ended, we need to continue to pEnd before we are done */
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while(self->pCurrent != pEnd)
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{
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int TaskSchedule(pTaskMan self)
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{
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int iRet;
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pTaskHead pTemp;
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assert(self);
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assert(self->iID == TASKERID);
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/* forever, until stop is called somehow */
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while (self->iStop == 0) {
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if (self->pCurrent->iStatus == READY) {
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iRet = self->pCurrent->pRun(self->pCurrent->pData);
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if (iRet != 1) {
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pTemp = self->pCurrent;
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IncrTaskPointer(self);
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DeleteTaskHead(pTemp);
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} else {
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IncrTaskPointer(self);
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}
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} else {
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IncrTaskPointer(self);
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}
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pEnd->iStatus = READY;
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return 1;
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}
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/*----------------------------------------------------------------*/
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int TaskYield(pTaskMan self)
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{
|
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int iRet;
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long lTest;
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pTaskHead pTemp, pEnd;
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|
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assert(self);
|
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assert(self->iID == TASKERID);
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|
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/* Cycle until back at ourselves */
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pEnd = self->pCurrent;
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pEnd->iStatus = WAITING;
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IncrTaskPointer(self);
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while((self->iStop == 0) && (self->pCurrent != pEnd))
|
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{
|
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if((self->pCurrent != pEnd) && (self->pCurrent->iStatus == READY))
|
||||
/* omit ourselves! */
|
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{
|
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iRet = self->pCurrent->pRun(self->pCurrent->pData);
|
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if(iRet != 1)
|
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{
|
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pTemp = self->pCurrent;
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lTest = pTemp->lID;
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IncrTaskPointer(self);
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DeleteTaskHead(pTemp);
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}
|
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else
|
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{
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IncrTaskPointer(self);
|
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}
|
||||
}
|
||||
else
|
||||
{
|
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IncrTaskPointer(self);
|
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}
|
||||
}
|
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pEnd->iStatus = READY;
|
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return 1;
|
||||
}
|
||||
}
|
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return 1;
|
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}
|
||||
|
||||
/*-----------------------------------------------------------------*/
|
||||
int TaskWait(pTaskMan self, long lID)
|
||||
{
|
||||
int iRet;
|
||||
long lTest;
|
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pTaskHead pTemp, pEnd;
|
||||
|
||||
assert(self);
|
||||
assert(self->iID == TASKERID);
|
||||
|
||||
/* Cycle until lID is killed. Stop is obeyed as well */
|
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pEnd = self->pCurrent;
|
||||
pEnd->iStatus = WAITING;
|
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IncrTaskPointer(self);
|
||||
while (self->iStop == 0) {
|
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if ((self->pCurrent != pEnd) && (self->pCurrent->iStatus == READY)
|
||||
&& self->pCurrent != NULL)
|
||||
/* omit ourselves! */
|
||||
{
|
||||
iRet = self->pCurrent->pRun(self->pCurrent->pData);
|
||||
if (iRet != 1) {
|
||||
pTemp = self->pCurrent;
|
||||
lTest = pTemp->lID;
|
||||
IncrTaskPointer(self);
|
||||
DeleteTaskHead(pTemp);
|
||||
if (lTest == lID) {
|
||||
goto ente;
|
||||
}
|
||||
} else {
|
||||
IncrTaskPointer(self);
|
||||
}
|
||||
} else {
|
||||
IncrTaskPointer(self);
|
||||
}
|
||||
if (self->pCurrent == self->pHead) {
|
||||
if (!TaskExist(self, lID))
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goto ente;
|
||||
}
|
||||
}
|
||||
|
||||
ente:
|
||||
/* task ended, we need to continue to pEnd before we are done */
|
||||
while (self->pCurrent != pEnd) {
|
||||
IncrTaskPointer(self);
|
||||
}
|
||||
pEnd->iStatus = READY;
|
||||
return 1;
|
||||
}
|
||||
|
||||
/*----------------------------------------------------------------*/
|
||||
int TaskYield(pTaskMan self)
|
||||
{
|
||||
int iRet;
|
||||
long lTest;
|
||||
pTaskHead pTemp, pEnd;
|
||||
|
||||
assert(self);
|
||||
assert(self->iID == TASKERID);
|
||||
|
||||
/* Cycle until back at ourselves */
|
||||
pEnd = self->pCurrent;
|
||||
pEnd->iStatus = WAITING;
|
||||
IncrTaskPointer(self);
|
||||
while ((self->iStop == 0) && (self->pCurrent != pEnd)) {
|
||||
if ((self->pCurrent != pEnd) && (self->pCurrent->iStatus == READY))
|
||||
/* omit ourselves! */
|
||||
{
|
||||
iRet = self->pCurrent->pRun(self->pCurrent->pData);
|
||||
if (iRet != 1) {
|
||||
pTemp = self->pCurrent;
|
||||
lTest = pTemp->lID;
|
||||
IncrTaskPointer(self);
|
||||
DeleteTaskHead(pTemp);
|
||||
} else {
|
||||
IncrTaskPointer(self);
|
||||
}
|
||||
} else {
|
||||
IncrTaskPointer(self);
|
||||
}
|
||||
}
|
||||
pEnd->iStatus = READY;
|
||||
return 1;
|
||||
}
|
||||
|
||||
/*---------------------------------------------------------------------------*/
|
||||
int TaskSignal(pTaskMan self, int iSignal, void *pSigData)
|
||||
{
|
||||
pTaskHead pTemp, pEnd;
|
||||
|
||||
assert(self);
|
||||
assert(self->iID == TASKERID);
|
||||
|
||||
/* Do one cycle until we are at the caller, then return to him*/
|
||||
pEnd = self->pCurrent;
|
||||
IncrTaskPointer(self);
|
||||
while(self->pCurrent != pEnd)
|
||||
{
|
||||
if(self->pCurrent->pSignal)
|
||||
{
|
||||
self->pCurrent->pSignal(self->pCurrent->pData, iSignal, pSigData);
|
||||
}
|
||||
IncrTaskPointer(self);
|
||||
}
|
||||
/* finally, tell me about the thingie as well */
|
||||
if(pEnd->pSignal)
|
||||
{
|
||||
pEnd->pSignal(pEnd->pData, iSignal, pSigData);
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
int TaskSignal(pTaskMan self, int iSignal, void *pSigData)
|
||||
{
|
||||
pTaskHead pTemp, pEnd;
|
||||
|
||||
assert(self);
|
||||
assert(self->iID == TASKERID);
|
||||
|
||||
/* Do one cycle until we are at the caller, then return to him */
|
||||
pEnd = self->pCurrent;
|
||||
IncrTaskPointer(self);
|
||||
while (self->pCurrent != pEnd) {
|
||||
if (self->pCurrent->pSignal) {
|
||||
self->pCurrent->pSignal(self->pCurrent->pData, iSignal, pSigData);
|
||||
}
|
||||
IncrTaskPointer(self);
|
||||
}
|
||||
/* finally, tell me about the thingie as well */
|
||||
if (pEnd->pSignal) {
|
||||
pEnd->pSignal(pEnd->pData, iSignal, pSigData);
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
/*--------------------------------------------------------------------------*/
|
||||
int TaskStop(pTaskMan self)
|
||||
{
|
||||
assert(self);
|
||||
assert(self->iID == TASKERID);
|
||||
|
||||
self->iStop = 1;
|
||||
return 1;
|
||||
}
|
||||
/*--------------------------------------------------------------------------*/
|
||||
int TaskContinue(pTaskMan self)
|
||||
{
|
||||
assert(self);
|
||||
assert(self->iID == TASKERID);
|
||||
|
||||
self->iStop = 0;
|
||||
return 1;
|
||||
}
|
||||
int TaskStop(pTaskMan self)
|
||||
{
|
||||
assert(self);
|
||||
assert(self->iID == TASKERID);
|
||||
|
||||
self->iStop = 1;
|
||||
return 1;
|
||||
}
|
||||
|
||||
/*--------------------------------------------------------------------------*/
|
||||
int TaskContinue(pTaskMan self)
|
||||
{
|
||||
assert(self);
|
||||
assert(self->iID == TASKERID);
|
||||
|
||||
self->iStop = 0;
|
||||
return 1;
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user