tk_vtxsa.c

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/*
 * FILENAME: tk_vtxsa.c
 *
 * Copyright  2001 By InterNiche Technologies Inc. All rights reserved
 *
 * Wrapper and utility Functions to map NicheTask "TK_" macros to 
 * Mentor Graphics native VRTXsa Functions
 *
 * MODULE: MISCLIB
 *
 * PORTABLE: yes (within VRTXsa systems)
 *
 * These wrapper functions for native VrtxSa functions are dependant on the
 * the implemenation of the project/target directory osport.c file.
 *
 * 08/15/2001 - Aditya Kotha
 *
 */

#include "ipport.h"

#ifdef VRTX_SA

#include "osport.h"

#include "vrtxil.h"  /* VRTXsa declarations, data types, error codes, etc */

void Sc_Wake(int *Id);
void Sc_Delay(void);
void Sc_Tresume(int tid);
void Sc_Tsuspend(void);
int  Sc_Tinquiry(void);


void Sc_Wake(int *Id)
{
   int err;
   
   sc_tresume(*Id, 0, &err);

   if (err == ER_IPP)
   {
      dtrap("tk_vtxsa 0\n");
      panic("Sc_Wake");
   }

   return;
}

/* tk_yeild() */
void Sc_Delay(void)
{
   sc_delay(0);
   return;
}

void Sc_Tresume(int tid)
{
int err;
   
   sc_tresume(tid, 0, &err);

   if (err == ER_IPP)
   {
      dtrap("tk_vtxsa 1\n");
      panic("Sc_Wake");
   }

   return;
}


void Sc_Tsuspend(void)
{
int err;

   sc_tsuspend(0, 0, &err);

   if (err == ER_IPP)
   {
      dtrap("tk_vtxsa 2\n");
      panic("Sc_Tsuspend");
   }

   return;
}


int Sc_Tinquiry(void)
{
int i, err;
int info[3];

   sc_tinquiry(&info[0], 0, &err);

   return info[0];
}

/*
 * The following is a sample implementation of TK_NEWTASK(), the following 
 * line is of relevance to the implementaiton of Sc_Tinquiry().
 *
 *       *(nettask->tk_ptr) = task_id;
 * 
 * This copies the task id returned by sc_tecreate() into our list of task 
 * objects, so that other TK Macro calls can do a wake up (or put to sleep) the 
 * appropriate task based on "our" (Interniche) Task Object ID.
 *
 * Examples of such uses are the SignalPktDemux() & SignalEmailTask() calls.
 *
 *
 *
 * int
 * TK_NEWTASK(struct inet_taskinfo * nettask)
 * {
 * int task_id, err;
 *
 *    task_id = sc_tecreate(
 *                (void(*)())nettask->entry, 
 *                WILD_CARD_ID, 
 *                nettask->priority, 
 *                DEF_TASK_MODE, 
 *                nettask->stacksize, 
 *                nettask->stacksize, 
 *                (char *) NULL,
 *                NO_DATA_COPY,
 *                &err);
 *
 *    vrtxsa_mem_pointer = vrtxsa_mem_pointer + nettask->stacksize;
 * 
 *    if(err != RET_OK)
 *    {
 *       printf("Task create error %d on %s\n", nettask->name);
 *       return TK_ERROR;
 *    }
 *    else
 *    {
 *       printf("Created %s task.\n", nettask->name);
 *       *(nettask->tk_ptr) = task_id;
 *       return 0;
 *    }
 * }
 * 
 */

#endif /* VRTX_SA */