//                              -*- Mode: CFA -*-
//
// Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
//
// The contents of this file are covered under the licence agreement in the
// file "LICENCE" distributed with Cforall.
//
// threads --
//
// Author           : Thierry Delisle
// Created On       : Tue Jan 17 12:27:26 2017
// Last Modified By : Thierry Delisle
// Last Modified On : --
// Update Count     : 0
//

#ifndef KERNEL_H
#define KERNEL_H

#include <stdbool.h>

#include "invoke.h"

extern "C" {
#include <pthread.h>
}

//-----------------------------------------------------------------------------
// Locks
void lock( spinlock * );
void unlock( spinlock * );

void wait( signal_once * );
void signal( signal_once * );

//-----------------------------------------------------------------------------
// Cluster
struct cluster {
	simple_thread_list ready_queue;
	spinlock lock;
};

void ?{}(cluster * this);
void ^?{}(cluster * this);

//-----------------------------------------------------------------------------
// Processor
enum FinishOpCode { No_Action, Release, Schedule, Release_Schedule };
struct FinishAction {
	FinishOpCode action_code;
	thread * thrd;
	spinlock * lock;
};
static inline void ?{}(FinishAction * this) { 
	this->action_code = No_Action;
	this->thrd = NULL;
	this->lock = NULL;
}
static inline void ^?{}(FinishAction * this) {}

struct processor {
	struct processorCtx_t * runner;
	cluster * cltr;
	coroutine * current_coroutine;
	thread * current_thread;
	pthread_t kernel_thread;
	
	signal_once terminated;
	volatile bool is_terminated;

	struct FinishAction finish;
};

void ?{}(processor * this);
void ?{}(processor * this, cluster * cltr);
void ^?{}(processor * this);

#endif //KERNEL_H

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