/* Suspend the current running process, and launch a running process. May be the
* same if no other process are currently running*/
void yield(void)
{
LOG("Transfering processes (current, next) : ");
struct processDescriptor* current =
(struct processDescriptor*) getIndex(&runningList, 0)->element;
rotateForward(&runningList);
struct processDescriptor* next =
(struct processDescriptor*) getIndex(&runningList, 0)->element;
LOG_INT(current->pid);
LOG_CONT(" ");
LOG_INT(next->pid);
LOG_CONT("\n");
wait(1000000);
transfer(&(next->processState), &(current->processState));
}
Record* Extent::getFirstRecord()
{
LOG_INT("first record:", firstRecord);
if (firstRecord == -1)
{
return NULL;
}
return (Record*)&data[firstRecord];
}
/*
* Delete current process, i.e. remove from runningList, free the Cell,
* and switch process. Free the stack too.
*/
void deleteProcess()
{
struct processDescriptor* process = (struct processDescriptor*)
removeCell(&runningList, getIndex(&runningList, 0));
LOG("Deleting process : ");
LOG_INT((int) process->pid);
LOG_CONT("\n");
free2M(process->map.baseAddress);
if(process->baseAddress) /* If stored in kernel memory*/
{
kfree(process->baseAddress);
}
kfree(process);
struct processDescriptor* next =
(struct processDescriptor *) getIndex(&runningList, 0)->element;
restartProcess(&(next->processState));
}
void Namespace::printData()
{
DiskLoc nextExtentLoc = firstExtentLoc;
while (!nextExtentLoc.isNull())
{
Extent* extent = db->getExtent(nextExtentLoc);
int nextRecordOffset = extent->firstRecord;
while (nextRecordOffset != -1)
{
LOG_INT("print record num: ", nextRecordOffset);
Record* record = extent->getRecord(nextRecordOffset);
int jsonSize = 0;
// bson_to_json(((bson*)record->data)->data, 0, true, 0, jsonSize);
nextRecordOffset = record->nextRecLoc;
}
nextExtentLoc = extent->nextExtent;
}
}
/*
* Launch the kernel, i.e. launch first process in the running list
*/
void startKernel(void)
{
LOG("Gonna start the kernel, remind all processes :\n");
int i = 0;
int max = runningList.size;
for( ; i < max ; i++)
{
struct processDescriptor* p =
(struct processDescriptor*) getIndex(&runningList, i)->element;
printProcess(p);
}
struct processDescriptor* process =
(struct processDescriptor*) getIndex(&runningList, 0)->element;
LOG("Starting process : ");
LOG_INT(process->pid);
LOG_CONT("\n");
/* LOG_INT(process->ppid); */
printProcess(process);
LOG_CONT("\n");
startProcess(&(process->processState));
}
void printProcess(struct processDescriptor* process)
{
LOG("Print process (map.baseAddress, pid, ppid, pc, sp, lr) :\n ");
LOG_INT((int) process->map.baseAddress);
LOG_CONT(" ");
LOG_INT(process->pid);
LOG_CONT(" ");
LOG_INT(process->ppid);
LOG_CONT(" ");
LOG_INT((int)process->processState.pc);
LOG_CONT(" ");
LOG_INT((int)process->processState.sp);
LOG_CONT(" ");
LOG_INT((int)process->processState.lr);
LOG_CONT("\n");
wait(3000000);
}
/* create new process and returns the cell containing the process */
struct cell * createProcess(void (*f)(void), void* baseAddress)
{
void* area = get2M();
LOG("Creating process at base address : ");
LOG_INT((int)area);
LOG_CONT("\n");
/* Prepare initial processState*/
struct processDescriptor * process =
kalloc(sizeof(struct processDescriptor));
process->processState.pc = f;
process->processState.sp = area + 2*SPACE - 4;
/* When exiting, auto-delete process */
process->processState.lr = &deleteProcess;
process->ppid = choosePPID();
pidCounter++;
process->pid = pidCounter;
process->map.baseAddress = area;
process->baseAddress = baseAddress;
printProcess(process);
insertAtEnd(&stoppedList, process);
return getIndex(&stoppedList, 0)->previous;
}
void Limits::print() const
{
#define LOG_INT(var) Log("%s = %d", #var, var)
LOG_INT(maxColorAttachments);
LOG_INT(maxDrawBuffers);
LOG_INT(maxVertexTextureUnits);
LOG_INT(maxFragmentTextureUnits);
LOG_INT(maxCombinedTextureUnits);
LOG_INT(maxTextureSize[TextureType_1D]);
LOG_INT(maxTextureSize[TextureType_2D]);
LOG_INT(maxTextureSize[TextureType_3D]);
LOG_INT(maxTextureSize[TextureType_Rect]);
LOG_INT(maxTextureSize[TextureType_CubeMap]);
LOG_INT(maxTextureCoords);
LOG_INT(maxVertexAttributes);
#undef LOG_INT
Log("maxTextureAnisotropy = %f", maxTextureAnisotropy);
}