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Fix routines once and forever.

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By simply preventing reuse of slots that have been terminated during their execution.
This commit is contained in:
Sandu Liviu Catalin 2020-05-06 01:20:17 +03:00
parent ad8641e7d3
commit 378b1bf001
1 changed files with 13 additions and 16 deletions
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29
module/Misc/Routine.hpp
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@ -39,7 +39,7 @@ private:
bool mSuspended; // Whether this instance is allowed to receive calls.
bool mQuiet; // Whether this instance is allowed to handle errors.
bool mEndure; // Whether this instance is allowed to terminate itself on errors.
bool mTerminated; // Whether this instance was terminated once.
bool mExecuting; // Whether this instance is currently being executed.
Uint8 mArgc; // The number of arguments that the routine must forward.
Argument mArgv[14]; // The arguments that the routine must forward.
@ -57,7 +57,7 @@ private:
, mSuspended(false)
, mQuiet(GetSilenced())
, mEndure(false)
, mTerminated(false)
, mExecuting(false)
, mArgc(0)
, mArgv()
{
@ -105,6 +105,8 @@ private:
// Initialize the routine options
mIterations = itr;
mInterval = intrv;
// This can't be true now
mExecuting = false;
}
/* ----------------------------------------------------------------------------------------
@ -126,7 +128,7 @@ private:
*/
Interval Execute()
{
// is this even a valid routine?
// Is this even a valid routine?
if (mInst.IsNull())
{
return 0; // Dunno how we got here but it ends now
@ -152,30 +154,26 @@ private:
{
sq_pushobject(vm, mArgv[n].mObj);
}
// This routine is currently executing
mExecuting = true;
// Make the function call and store the result
const SQRESULT res = sq_call(vm, mArgc + 1, static_cast< SQBool >(false), static_cast< SQBool >(!mQuiet));
// This routine has finished executing
mExecuting = false;
// Pop the callback object from the stack
sq_pop(vm, 1);
// Validate the result
if (SQ_FAILED(res))
{
// Should we endure the errors?
if (!mEndure && !mTerminated)
if (!mEndure)
{
Terminate(); // Destroy our self on error
}
}
}
// See if we are using the slot of a previously terminated routine
if (mTerminated)
{
// The old routine was terminated, we're the new routine and we're not
// We don't touch the iterations and return the interval of the new routine
// to take effect on the next frame
mTerminated = false;
}
// Decrease the number of iterations if necessary
else if (mIterations && (--mIterations) == 0)
if (mIterations && (--mIterations) == 0)
{
Terminate(); // This routine reached the end of it's life
}
@ -204,8 +202,6 @@ private:
{
Release();
Clear();
// Don't attempt to terminate this routine again
mTerminated = true;
}
};
@ -252,7 +248,8 @@ protected:
{
for (const auto & r : s_Instances)
{
if (r.mInst.IsNull())
// Either not used or not currently being executing
if (r.mInst.IsNull() && !(r.mExecuting))
{
return (&r - s_Instances); // Return the index of this element
}