blob: 566ce61c317ad50b0d7422b9689b52eac5a3d551 [file] [log] [blame]
/*
* Copyright 2018 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef INCLUDE_ALSA_CONFORMANCE_TIMER_H_
#define INCLUDE_ALSA_CONFORMANCE_TIMER_H_
#include <time.h>
#define MAX_ALSA_API_LENGTH 25
enum ALSA_API {
SND_PCM_OPEN = 0,
SND_PCM_HW_PARAMS,
SND_PCM_HW_PARAMS_ANY,
SND_PCM_SW_PARAMS,
SND_PCM_START,
SND_PCM_AVAIL,
ALSA_API_COUNT /* Keep it in the last line to count total amounts. */
};
#define ENUM_STR(x) \
case x: \
return #x;
static inline const char *alsa_api_str(enum ALSA_API api)
{
switch (api) {
ENUM_STR(SND_PCM_OPEN)
ENUM_STR(SND_PCM_HW_PARAMS)
ENUM_STR(SND_PCM_HW_PARAMS_ANY)
ENUM_STR(SND_PCM_SW_PARAMS)
ENUM_STR(SND_PCM_START)
ENUM_STR(SND_PCM_AVAIL)
default:
return "INVALID_API";
}
}
struct alsa_conformance_timer;
/* Returns true if timespec a later than timespec b. */
int timespec_after(const struct timespec *a, const struct timespec *b);
/* Timespec a += b. */
void add_timespec(struct timespec *a, const struct timespec *b);
/* Timespec a -= b. */
void subtract_timespec(struct timespec *a, const struct timespec *b);
/* Returns string of timespec, need to be freed after usage.*/
char *timespec_to_str(const struct timespec *time);
/* Returns nanosecond of timespec. */
long long timespec_to_ns(const struct timespec *time);
/* Returns second of timespec. */
double timespec_to_s(const struct timespec *time);
/* Creates and initializes a new timer object. */
struct alsa_conformance_timer *conformance_timer_create();
/* Destroys timer object */
void conformance_timer_destroy(struct alsa_conformance_timer *timer);
/* Starts api_timer of this alsa api. */
void conformance_timer_start(struct alsa_conformance_timer *timer,
enum ALSA_API id);
/* Stops api_timer and records time of this alsa api. */
void conformance_timer_stop(struct alsa_conformance_timer *timer,
enum ALSA_API id);
/* Enables timer. It will record data. */
void conformance_timer_enable(struct alsa_conformance_timer *timer);
/* Disables timer. It will not record any data until it is enabled. */
void conformance_timer_disable(struct alsa_conformance_timer *timer);
/* Prints timer result. */
void conformance_timer_print_result(const struct alsa_conformance_timer *timer);
#endif /* INCLUDE_ALSA_CONFORMANCE_TIMER_H_ */