//                              -*- 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.
//
// monitor --
//
// Author           : Thierry Delisle
// Created On       : Thd Feb 23 12:27:26 2017
// Last Modified By : Thierry Delisle
// Last Modified On : --
// Update Count     : 0
//

#ifndef MONITOR_H
#define MONITOR_H

#include <stddef.h>

#include "assert"
#include "invoke.h"
#include "stdlib"

static inline void ?{}(monitor_desc * this) {
	this->owner = NULL;
      this->stack_owner = NULL;
	this->recursion = 0;
}

struct monitor_guard_t {
	monitor_desc ** m;
	int count;
      monitor_desc ** prev_mntrs;
      unsigned short  prev_count;
};

static inline int ?<?(monitor_desc* lhs, monitor_desc* rhs) {
	return ((intptr_t)lhs) < ((intptr_t)rhs);
}

void ?{}( monitor_guard_t * this, monitor_desc ** m, int count );
void ^?{}( monitor_guard_t * this );

//-----------------------------------------------------------------------------
// Internal scheduling
struct condition {
	__thread_queue_t blocked;
	monitor_desc ** monitors;
	unsigned short monitor_count;
};

static inline void ?{}( condition * this ) {
	this->monitors = NULL;
	this->monitor_count = 0;
}

void wait( condition * this );
void signal( condition * this );
#endif //MONITOR_H