dimcpp.cxx

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#include <assert.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#ifdef __VMS
#include <starlet.h>
#endif

#define DIMLIB
#include <dim_core.hxx>
#include <dim.hxx>

int DimCore::inCallback = 0;
int DimUtil::itsBufferSize = 0;
char *DimUtil::itsBuffer = (char *)0;

extern "C" {
static void timer_user_routine(void *tp)
{
        DimTimer *t = (DimTimer *)tp;
        DimCore::inCallback = 1;
        t->firedFlag = 1;
        t->runningFlag = 0;
        t->timerHandler();
        DimCore::inCallback = 0;
}
}

int DimTimer::start(int time)
{
        if(runningFlag)
                return 0;
        runningFlag = 1;
        firedFlag = 0;
        dtq_start_timer(time, timer_user_routine, this);
        return 1;
}

int DimTimer::stop() 
{
        firedFlag = 0;
        runningFlag = 0;
        return dtq_stop_timer(this);
}

DimTimer::DimTimer() 
{ 
        firedFlag = 0;
        runningFlag = 0; 
}
        
DimTimer::DimTimer(int time)
{ 
        firedFlag = 0;
        runningFlag = 0; 
        start(time);
}

DimTimer::~DimTimer()
{
        if(runningFlag)
                stop();
}

// Threads

extern "C" {
static void thread_user_routine(void *tp)
{
        DimThread *t = (DimThread *)tp;
//      DimCore::inCallback = 1;
//      t->firedFlag = 1;
//      t->runningFlag = 0;
        t->threadHandler();
        t->itsId = 0;
//      DimCore::inCallback = 0;
}
}

DimThread::DimThread() 
{
//      start();
        itsId = 0;
}
        
DimThread::~DimThread()
{
//      if(itsId)
//              stop();
}

int DimThread::start()
{
        if(!itsId)
        {
                itsId = (long)dim_start_thread(thread_user_routine, this);
                return 1;
        }
        return 0;
}
/*
int DimThread::stop()
{
        int ret = dim_stop_thread(itsId);
        itsId = 0;
        return ret;
}
*/

DimUtil::DimUtil() 
{
}
        
DimUtil::~DimUtil()
{
}

char *DimUtil::getEnvVar(char *name)
{
        int size;

        size = dim_get_env_var(name, 0, 0);
        if(!size)
                return (char *)0;
        if((itsBufferSize < size ) && (itsBufferSize != 0))
        {
                delete[] itsBuffer;
                itsBufferSize = 0;
        }
        if(!itsBufferSize)
        {
                itsBuffer = new char[size];
                itsBufferSize = size;
        }
        dim_get_env_var(name, itsBuffer, itsBufferSize);
        return itsBuffer;
}