[lttng-dev] [PATCH] Explain the if (!session_pid) in lttng-tools lttng.c spawn_sessiond()

[Mathieu Desnoyers]

* Thibault, Daniel (Daniel.Thibault at drdc-rddc.gc.ca) wrote:
> ------------------------------
> From e64074d0a731607834d01e6e2da75955e8f793c4 Wed, 25 Jan 2012 13:50:18 -0500
> From: Daniel U. Thibault <daniel.thibault at drdc-rddc.gc.ca>
> Date: Wed, 25 Jan 2012 13:50:08 -0500
> Subject: [PATCH] Explain the if (!session_pid) in lttng-tools lttng.c spawn_sessiond()
> 
> diff --git a/src/bin/lttng/lttng.c b/src/bin/lttng/lttng.c
> index 95ef848..36723be 100644
> --- a/src/bin/lttng/lttng.c
> +++ b/src/bin/lttng/lttng.c
> @@ -332,6 +332,9 @@
>  		while (!recv_child_signal) {
>  			sleep(1);
>  		}
> +		/*
> +		 * The signal handler will null sessiond_pid on SIGCHLD

should be "will nullify"

Thanks,

Mathieu

> +		 */
>  		if (!sessiond_pid) {
>  			exit(EXIT_FAILURE);
>  		}
> ------------------------------
> 
> Daniel U. Thibault
> R & D pour la défense Canada - Valcartier (RDDC Valcartier) / Defence R&D Canada - Valcartier (DRDC Valcartier)
> Système de systèmes (SdS) / System of Systems (SoS)
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-- 
Mathieu Desnoyers
Operating System Efficiency R&D Consultant
EfficiOS Inc.
http://www.efficios.com