Re: [libgpiod v2][PATCH] API: suffix the time unit to get_timestamp functions

[Kent Gibson <warthog618@gmail.com>]

On Tue, Mar 22, 2022 at 02:06:36PM +0100, Bartosz Golaszewski wrote:
> In order to make it clear what unit we're using - add the _ns suffix
> to timestamp getters for both the edge and info events.
> 

Makes sense.

A couple of minor tweaks below, but assuming those:

Signed-off-by: Kent Gibson <warthog618@gmail.com>

> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
> ---
>  include/gpiod.h          | 4 ++--
>  lib/edge-event.c         | 2 +-
>  lib/info-event.c         | 2 +-
>  tests/tests-edge-event.c | 4 ++--
>  tests/tests-info-event.c | 6 +++---
>  tools/gpiomon.c          | 2 +-
>  6 files changed, 10 insertions(+), 10 deletions(-)
> 
> diff --git a/include/gpiod.h b/include/gpiod.h
> index eaf6334..c605da8 100644
> --- a/include/gpiod.h
> +++ b/include/gpiod.h
> @@ -493,7 +493,7 @@ int gpiod_info_event_get_event_type(struct gpiod_info_event *event);
>   * @param event Line status watch event.
>   * @return Timestamp in nanoseconds, read from the monotonic clock.
>   */
> -uint64_t gpiod_info_event_get_timestamp(struct gpiod_info_event *event);
> +uint64_t gpiod_info_event_get_timestamp_ns(struct gpiod_info_event *event);
>  
>  /**
>   * @brief Get the snapshot of line-info associated with the event.
> @@ -1401,7 +1401,7 @@ int gpiod_edge_event_get_event_type(struct gpiod_edge_event *event);
>   * @note The source clock for the timestamp depends on the event_clock
>   *	 setting for the line.
>   */
> -uint64_t gpiod_edge_event_get_timestamp(struct gpiod_edge_event *event);
> +uint64_t gpiod_edge_event_get_timestamp_ns(struct gpiod_edge_event *event);
>  
>  /**
>   * @brief Get the offset of the line which triggered the event.
> diff --git a/lib/edge-event.c b/lib/edge-event.c
> index 661754e..48a0f95 100644
> --- a/lib/edge-event.c
> +++ b/lib/edge-event.c
> @@ -55,7 +55,7 @@ GPIOD_API int gpiod_edge_event_get_event_type(struct gpiod_edge_event *event)
>  }
>  
>  GPIOD_API uint64_t
> -gpiod_edge_event_get_timestamp(struct gpiod_edge_event *event)
> +gpiod_edge_event_get_timestamp_ns(struct gpiod_edge_event *event)
>  {
>  	return event->timestamp;
>  }

Shouldn't that field be timestamp_ns?

> diff --git a/lib/info-event.c b/lib/info-event.c
> index 4abed57..73a3d6d 100644
> --- a/lib/info-event.c
> +++ b/lib/info-event.c
> @@ -67,7 +67,7 @@ GPIOD_API int gpiod_info_event_get_event_type(struct gpiod_info_event *event)
>  }
>  
>  GPIOD_API uint64_t
> -gpiod_info_event_get_timestamp(struct gpiod_info_event *event)
> +gpiod_info_event_get_timestamp_ns(struct gpiod_info_event *event)
>  {
>  	return event->timestamp;
>  }

Ditto.

> diff --git a/tests/tests-edge-event.c b/tests/tests-edge-event.c
> index 28502a8..306383f 100644
> --- a/tests/tests-edge-event.c
> +++ b/tests/tests-edge-event.c
> @@ -145,7 +145,7 @@ GPIOD_TEST_CASE(read_both_events)
>  	g_assert_cmpint(gpiod_edge_event_get_event_type(event),
>  			==, GPIOD_EDGE_EVENT_RISING_EDGE);
>  	g_assert_cmpuint(gpiod_edge_event_get_line_offset(event), ==, 2);
> -	ts_rising = gpiod_edge_event_get_timestamp(event);
> +	ts_rising = gpiod_edge_event_get_timestamp_ns(event);
>  
>  	/* Second event. */
>  
> @@ -165,7 +165,7 @@ GPIOD_TEST_CASE(read_both_events)
>  	g_assert_cmpint(gpiod_edge_event_get_event_type(event),
>  			==, GPIOD_EDGE_EVENT_FALLING_EDGE);
>  	g_assert_cmpuint(gpiod_edge_event_get_line_offset(event), ==, 2);
> -	ts_falling = gpiod_edge_event_get_timestamp(event);
> +	ts_falling = gpiod_edge_event_get_timestamp_ns(event);
>  
>  	g_thread_join(thread);
>  
> diff --git a/tests/tests-info-event.c b/tests/tests-info-event.c
> index 0640d66..3f18784 100644
> --- a/tests/tests-info-event.c
> +++ b/tests/tests-info-event.c
> @@ -184,9 +184,9 @@ GPIOD_TEST_CASE(request_reconfigure_release_events)
>  
>  	g_thread_join(thread);
>  
> -	request_ts = gpiod_info_event_get_timestamp(request_event);
> -	reconfigure_ts = gpiod_info_event_get_timestamp(reconfigure_event);
> -	release_ts = gpiod_info_event_get_timestamp(release_event);
> +	request_ts = gpiod_info_event_get_timestamp_ns(request_event);
> +	reconfigure_ts = gpiod_info_event_get_timestamp_ns(reconfigure_event);
> +	release_ts = gpiod_info_event_get_timestamp_ns(release_event);
>  
>  	g_assert_cmpuint(request_ts, <, reconfigure_ts);
>  	g_assert_cmpuint(reconfigure_ts, <, release_ts);
> diff --git a/tools/gpiomon.c b/tools/gpiomon.c
> index 4769e62..f6a0dba 100644
> --- a/tools/gpiomon.c
> +++ b/tools/gpiomon.c
> @@ -299,7 +299,7 @@ int main(int argc, char **argv)
>  
>  			handle_event(gpiod_edge_event_get_line_offset(event),
>  				     gpiod_edge_event_get_event_type(event),
> -				     gpiod_edge_event_get_timestamp(event),
> +				     gpiod_edge_event_get_timestamp_ns(event),
>  				     &ctx);
>  
>  			events_done++;
> -- 
> 2.30.1
>