#ifndef _HIP_PRV_H_
#define _HIP_PRV_H_

#include "hip.h"
#include <ucontext.h>
#include <signal.h>
#include <time.h>

#define UCTX_FROM_LINK(_link) HIP_CONTAINEROF(_link, hip_uctx_t, uctx)

struct hip_uctx_t
{
	hip_t* hip;
/* TODO: add a small name field for debugging and identification */
	ucontext_t uc;
	int flags;
	hip_ufun_t uf;
	void* ctx;
	hip_oow_t csi; /* number of context switches in */
	hip_oow_t cso; /* number of context switches out */

	hip_nsecdur_t wakeup_time;
	int waiting_fd;
	unsigned int stid;

	hip_uint8_t* chan_data_ptr;
	hip_oow_t chan_data_len;
	int* chan_ret_ptr;

	hip_uctx_link_t uctx;
	hip_uctx_link_t io_done;
};

struct hip_t
{
	int flags;

	struct sigaction oldsa;
	timer_t tmr_id;
	int mux_id;

	hip_uctx_link_t runnables;
	hip_uctx_link_t terminated;
	hip_uctx_link_t sleeping;
	hip_uctx_link_t io_waiting;
	hip_uctx_link_t io_done;
	hip_uctx_link_t suspended;

	hip_uctx_link_t* running;

	hip_uctx_t* uctx_sched;
	hip_uctx_t* uctx_mux;
	ucontext_t uc_main;
};

#endif