[babeltrace.git] / src / lib / trace-ir / clock-snapshot.h

/*
 * SPDX-License-Identifier: MIT
 *
 * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
 */

#ifndef BABELTRACE_TRACE_IR_CLOCK_SNAPSHOT_INTERNAL_H
#define BABELTRACE_TRACE_IR_CLOCK_SNAPSHOT_INTERNAL_H

#include "lib/object.h"
#include <stdbool.h>
#include <stdint.h>

#include "clock-class.h"
#include "utils.h"

struct bt_clock_class;

struct bt_clock_snapshot {
	struct bt_object base;
	struct bt_clock_class *clock_class;
	uint64_t value_cycles;
	bool ns_from_origin_overflows;
	int64_t ns_from_origin;
	bool is_set;
};

static inline
void bt_clock_snapshot_set(struct bt_clock_snapshot *clock_snapshot)
{
	BT_ASSERT_DBG(clock_snapshot);
	clock_snapshot->is_set = true;
}

static inline
void bt_clock_snapshot_reset(struct bt_clock_snapshot *clock_snapshot)
{
	BT_ASSERT_DBG(clock_snapshot);
	clock_snapshot->is_set = false;
}

static inline
void set_ns_from_origin(struct bt_clock_snapshot *clock_snapshot)
{
	if (bt_util_ns_from_origin_clock_class(clock_snapshot->clock_class,
			clock_snapshot->value_cycles,
			&clock_snapshot->ns_from_origin)) {
		clock_snapshot->ns_from_origin_overflows = true;
	}
}

static inline
void bt_clock_snapshot_set_raw_value(struct bt_clock_snapshot *clock_snapshot,
		uint64_t cycles)
{
	BT_ASSERT_DBG(clock_snapshot);
	clock_snapshot->value_cycles = cycles;
	set_ns_from_origin(clock_snapshot);
	bt_clock_snapshot_set(clock_snapshot);
}

void bt_clock_snapshot_destroy(struct bt_clock_snapshot *clock_snapshot);

struct bt_clock_snapshot *bt_clock_snapshot_new(struct bt_clock_class *clock_class);

struct bt_clock_snapshot *bt_clock_snapshot_create(
		struct bt_clock_class *clock_class);

void bt_clock_snapshot_recycle(struct bt_clock_snapshot *clock_snapshot);

#endif /* BABELTRACE_TRACE_IR_CLOCK_SNAPSHOT_INTERNAL_H */
Commit	Line	Data
	1	/*
	2	* SPDX-License-Identifier: MIT
	3	*
	4	* Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
	5	*/
	6
	7	#ifndef BABELTRACE_TRACE_IR_CLOCK_SNAPSHOT_INTERNAL_H
	8	#define BABELTRACE_TRACE_IR_CLOCK_SNAPSHOT_INTERNAL_H
	9
	10	#include "lib/object.h"
	11	#include <stdbool.h>
	12	#include <stdint.h>
	13
	14	#include "clock-class.h"
	15	#include "utils.h"
	16
	17	struct bt_clock_class;
	18
	19	struct bt_clock_snapshot {
	20	struct bt_object base;
	21	struct bt_clock_class *clock_class;
	22	uint64_t value_cycles;
	23	bool ns_from_origin_overflows;
	24	int64_t ns_from_origin;
	25	bool is_set;
	26	};
	27
	28	static inline
	29	void bt_clock_snapshot_set(struct bt_clock_snapshot *clock_snapshot)
	30	{
	31	BT_ASSERT_DBG(clock_snapshot);
	32	clock_snapshot->is_set = true;
	33	}
	34
	35	static inline
	36	void bt_clock_snapshot_reset(struct bt_clock_snapshot *clock_snapshot)
	37	{
	38	BT_ASSERT_DBG(clock_snapshot);
	39	clock_snapshot->is_set = false;
	40	}
	41
	42	static inline
	43	void set_ns_from_origin(struct bt_clock_snapshot *clock_snapshot)
	44	{
	45	if (bt_util_ns_from_origin_clock_class(clock_snapshot->clock_class,
	46	clock_snapshot->value_cycles,
	47	&clock_snapshot->ns_from_origin)) {
	48	clock_snapshot->ns_from_origin_overflows = true;
	49	}
	50	}
	51
	52	static inline
	53	void bt_clock_snapshot_set_raw_value(struct bt_clock_snapshot *clock_snapshot,
	54	uint64_t cycles)
	55	{
	56	BT_ASSERT_DBG(clock_snapshot);
	57	clock_snapshot->value_cycles = cycles;
	58	set_ns_from_origin(clock_snapshot);
	59	bt_clock_snapshot_set(clock_snapshot);
	60	}
	61
	62	void bt_clock_snapshot_destroy(struct bt_clock_snapshot *clock_snapshot);
	63
	64	struct bt_clock_snapshot bt_clock_snapshot_new(struct bt_clock_class clock_class);
	65
	66	struct bt_clock_snapshot *bt_clock_snapshot_create(
	67	struct bt_clock_class *clock_class);
	68
	69	void bt_clock_snapshot_recycle(struct bt_clock_snapshot *clock_snapshot);
	70
	71	#endif /* BABELTRACE_TRACE_IR_CLOCK_SNAPSHOT_INTERNAL_H */