linux-kernel - Re: [PATCH 1/6] perf tool: Add time-based utility functions

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Message-ID: <20161128135840.GC1928@krava>
Date:   Mon, 28 Nov 2016 14:58:40 +0100
From:   Jiri Olsa <jolsa@...hat.com>
To:     David Ahern <dsa@...ulusnetworks.com>
Cc:     acme@...nel.org, mingo@...nel.org, peterz@...radead.org,
        namhyung@...nel.org, jolsa@...nel.org,
        linux-kernel@...r.kernel.org, David Ahern <dsahern@...il.com>
Subject: Re: [PATCH 1/6] perf tool: Add time-based utility functions

On Fri, Nov 25, 2016 at 02:39:54PM -0700, David Ahern wrote:
> From: David Ahern <dsahern@...il.com>
> 
> Add function to parse a user time string of the form <start>,<stop>
> where start and stop are time in sec.nsec format. Both start and stop
> times are optional.
> 
> Add function to determine if a sample time is within a given time
> time window of interest.
> 
> Signed-off-by: David Ahern <dsahern@...il.com>
> ---
>  tools/perf/util/Build        |  1 +
>  tools/perf/util/time-utils.c | 85 ++++++++++++++++++++++++++++++++++++++++++++
>  tools/perf/util/time-utils.h | 12 +++++++
>  3 files changed, 98 insertions(+)
>  create mode 100644 tools/perf/util/time-utils.c
>  create mode 100644 tools/perf/util/time-utils.h
> 
> diff --git a/tools/perf/util/Build b/tools/perf/util/Build
> index 1dc67efad634..78f139978e7a 100644
> --- a/tools/perf/util/Build
> +++ b/tools/perf/util/Build
> @@ -87,6 +87,7 @@ libperf-y += help-unknown-cmd.o
>  libperf-y += mem-events.o
>  libperf-y += vsprintf.o
>  libperf-y += drv_configs.o
> +libperf-y += time-utils.o
>  
>  libperf-$(CONFIG_LIBBPF) += bpf-loader.o
>  libperf-$(CONFIG_BPF_PROLOGUE) += bpf-prologue.o
> diff --git a/tools/perf/util/time-utils.c b/tools/perf/util/time-utils.c
> new file mode 100644
> index 000000000000..e584aeae9834
> --- /dev/null
> +++ b/tools/perf/util/time-utils.c
> @@ -0,0 +1,85 @@
> +#include <string.h>
> +#include <sys/time.h>
> +#include <time.h>
> +#include <errno.h>
> +#include <inttypes.h>
> +
> +#include "../perf.h"

could be just "perf.h"

jirka