[ltt-dev] [UST PATCH 4/6] Add list-pids command to ustctl

Mathieu Desnoyers compudj at krystal.dyndns.org
Thu Mar 31 15:31:09 EDT 2011


* Nils Carlson (nils.carlson at ericsson.com) wrote:
> Signed-off-by: Nils Carlson <nils.carlson at ericsson.com>
> ---
>  ustctl/ustctl.c |   28 ++++++++++++++++++++++++++++
>  1 files changed, 28 insertions(+), 0 deletions(-)
> 
> diff --git a/ustctl/ustctl.c b/ustctl/ustctl.c
> index 807af8c..040995b 100644
> --- a/ustctl/ustctl.c
> +++ b/ustctl/ustctl.c
> @@ -213,6 +213,25 @@ static int get_sock_path(int argc, char *argv[])
>  	return 0;
>  }
>  
> +static int list_pids(int argc, char *argv[])
> +{
> +	pid_t *pid_list;
> +	int i;
> +
> +	pid_list = ustctl_get_online_pids();
> +	if (!pid_list) {
> +		return -1;
> +	}
> +
> +	for (i = 0; pid_list[i]; i++) {
> +		printf("%d\n", pid_list[i]);

missing cast from pid_t to int here. If pid_t can ever become a long, I
would recomment a %ld format string.

Thanks,

Mathieu

> +	}
> +
> +	free(pid_list);
> +
> +	return 0;
> +}
> +
>  struct cli_cmd __cli_cmds general_cmds[] = {
>  	{
>  		.name = "list-trace-events",
> @@ -241,4 +260,13 @@ struct cli_cmd __cli_cmds general_cmds[] = {
>  		.desired_args = 1,
>  		.desired_args_op = CLI_EQ,
>  	},
> +	{
> +		.name = "list-pids",
> +		.description = "List traceable pids",
> +		.help_text = "list-pids\n"
> +		"List the traceable pids for the current user\n",
> +		.function = list_pids,
> +		.desired_args = 0,
> +		.desired_args_op = CLI_EQ,
> +	},
>  };
> -- 
> 1.7.1
> 
> 
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> 

-- 
Mathieu Desnoyers
Operating System Efficiency R&D Consultant
EfficiOS Inc.
http://www.efficios.com




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