Re: [PATCH v3 1/3] tools/lib/traceevent: Change description of few APIs

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On Mon, 25 Mar 2019 16:50:15 +0200
Tzvetomir Stoyanov <tstoyanov@xxxxxxxxxx> wrote:

> APIs descriptions should describe the purpose of the
> function, its parameters and return value. While working
> on man pages implementation, I noticed mismatches in the
> descriptions of few APIs. This patch changes the description
> of these APIs, making them consistent with the man pages:
> tep_print_num_field(), tep_print_func_field(),
> tep_get_header_page_size(), tep_get_long_size(),
> tep_set_long_size(), tep_get_page_size() and
> tep_set_page_size().

Hi Tzvetomir,

The above is very hard to read. Please list them one per line, and
write it like this:

 APIs descriptions should describe the purpose of the function, its
 parameters and return value. While working  on man pages
 implementation, I noticed mismatches in the  descriptions of few APIs.
 This patch changes the description of these APIs, making them
 consistent with the man pages:

 - tep_print_num_field()
 - tep_print_func_field()
 - tep_get_header_page_size()
 - tep_get_long_size()
 - tep_set_long_size()
 - tep_get_page_size()
 - tep_set_page_size()


It's much easier on the eyes.

I changed it for you. But next time, please start listing functions
instead of stringing them in one hard to read bundle.

Thanks!

-- Steve



> 
> Signed-off-by: Tzvetomir Stoyanov <tstoyanov@xxxxxxxxxx>
> ---
>  tools/lib/traceevent/event-parse-api.c | 20 ++++++++++----------
>  tools/lib/traceevent/event-parse.c     |  6 ++++--
>  2 files changed, 14 insertions(+), 12 deletions(-)
> 
> diff --git a/tools/lib/traceevent/event-parse-api.c b/tools/lib/traceevent/event-parse-api.c
> index d463761a58f4..3686a221e981 100644
> --- a/tools/lib/traceevent/event-parse-api.c
> +++ b/tools/lib/traceevent/event-parse-api.c
> @@ -43,8 +43,8 @@ int tep_get_events_count(struct tep_handle *tep)
>   * @flag: flag, or combination of flags to be set
>   * can be any combination from enum tep_flag
>   *
> - * This sets a flag or mbination of flags  from enum tep_flag
> -  */
> + * This sets a flag or combination of flags from enum tep_flag
> + */
>  void tep_set_flag(struct tep_handle *tep, int flag)
>  {
>  	if(tep)
> @@ -140,10 +140,10 @@ void tep_set_cpus(struct tep_handle *pevent, int cpus)
>  }
>  
>  /**
> - * tep_get_long_size - get the size of a long integer on the current machine
> + * tep_get_long_size - get the size of a long integer on the traced machine
>   * @pevent: a handle to the tep_handle
>   *
> - * This returns the size of a long integer on the current machine
> + * This returns the size of a long integer on the traced machine
>   * If @pevent is NULL, 0 is returned.
>   */
>  int tep_get_long_size(struct tep_handle *pevent)
> @@ -154,11 +154,11 @@ int tep_get_long_size(struct tep_handle *pevent)
>  }
>  
>  /**
> - * tep_set_long_size - set the size of a long integer on the current machine
> + * tep_set_long_size - set the size of a long integer on the traced machine
>   * @pevent: a handle to the tep_handle
>   * @size: size, in bytes, of a long integer
>   *
> - * This sets the size of a long integer on the current machine
> + * This sets the size of a long integer on the traced machine
>   */
>  void tep_set_long_size(struct tep_handle *pevent, int long_size)
>  {
> @@ -167,10 +167,10 @@ void tep_set_long_size(struct tep_handle *pevent, int long_size)
>  }
>  
>  /**
> - * tep_get_page_size - get the size of a memory page on the current machine
> + * tep_get_page_size - get the size of a memory page on the traced machine
>   * @pevent: a handle to the tep_handle
>   *
> - * This returns the size of a memory page on the current machine
> + * This returns the size of a memory page on the traced machine
>   * If @pevent is NULL, 0 is returned.
>   */
>  int tep_get_page_size(struct tep_handle *pevent)
> @@ -181,11 +181,11 @@ int tep_get_page_size(struct tep_handle *pevent)
>  }
>  
>  /**
> - * tep_set_page_size - set the size of a memory page on the current machine
> + * tep_set_page_size - set the size of a memory page on the traced machine
>   * @pevent: a handle to the tep_handle
>   * @_page_size: size of a memory page, in bytes
>   *
> - * This sets the size of a memory page on the current machine
> + * This sets the size of a memory page on the traced machine
>   */
>  void tep_set_page_size(struct tep_handle *pevent, int _page_size)
>  {
> diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
> index 87494c7c619d..e53c566be55d 100644
> --- a/tools/lib/traceevent/event-parse.c
> +++ b/tools/lib/traceevent/event-parse.c
> @@ -6386,7 +6386,8 @@ int tep_get_any_field_val(struct trace_seq *s, struct tep_event *event,
>   * @record: The record with the field name.
>   * @err: print default error if failed.
>   *
> - * Returns: 0 on success, -1 field not found, or 1 if buffer is full.
> + * Returns positive value on success, negative in case of an error,
> + * or 0 if buffer is full.
>   */
>  int tep_print_num_field(struct trace_seq *s, const char *fmt,
>  			struct tep_event *event, const char *name,
> @@ -6418,7 +6419,8 @@ int tep_print_num_field(struct trace_seq *s, const char *fmt,
>   * @record: The record with the field name.
>   * @err: print default error if failed.
>   *
> - * Returns: 0 on success, -1 field not found, or 1 if buffer is full.
> + * Returns positive value on success, negative in case of an error,
> + * or 0 if buffer is full.
>   */
>  int tep_print_func_field(struct trace_seq *s, const char *fmt,
>  			 struct tep_event *event, const char *name,




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