From: Thomas Monjalon <thomas.monjalon@6wind.com>
To: Harry van Haaren <harry.van.haaren@intel.com>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v9 2/2] eal: add function to check if primary proc alive
Date: Wed, 09 Mar 2016 16:02:55 +0100 [thread overview]
Message-ID: <1840042.mxEoybge3f@xps13> (raw)
In-Reply-To: <1457530645-14776-3-git-send-email-harry.van.haaren@intel.com>
2016-03-09 13:37, Harry van Haaren:
> This patch adds a new function to the EAL API:
> int rte_eal_primary_proc_alive(const char *path);
>
> The function indicates if a primary process is alive right now.
> This functionality is implemented by testing for a write-
> lock on the config file, and the function tests for a lock.
>
> The use case for this functionality is that a secondary
> process can wait until a primary process starts by polling
> the function and waiting. When the primary is running, the
> secondary continues to poll to detect if the primary process
> has quit unexpectedly, the secondary process can detect this.
>
> Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
> Acked-by: Maryam Tahhan <maryam.tahhan@intel.com>
> ---
> doc/guides/rel_notes/release_16_04.rst | 8 ++++
> lib/librte_eal/bsdapp/eal/Makefile | 1 +
> lib/librte_eal/bsdapp/eal/rte_eal_version.map | 1 +
> lib/librte_eal/common/eal_common_proc.c | 61 +++++++++++++++++++++++++
> lib/librte_eal/common/include/rte_eal.h | 20 +++++++-
> lib/librte_eal/linuxapp/eal/Makefile | 3 +-
> lib/librte_eal/linuxapp/eal/rte_eal_version.map | 1 +
> 7 files changed, 93 insertions(+), 2 deletions(-)
> create mode 100644 lib/librte_eal/common/eal_common_proc.c
>
> diff --git a/doc/guides/rel_notes/release_16_04.rst b/doc/guides/rel_notes/release_16_04.rst
> index 24f15bf..7d5000f 100644
> --- a/doc/guides/rel_notes/release_16_04.rst
> +++ b/doc/guides/rel_notes/release_16_04.rst
> @@ -74,6 +74,14 @@ EAL
> ~~~
>
>
> +* **Added rte_eal_primary_proc_alive() function**
> +
> + A new function ``rte_eal_primary_proc_alive()`` has been added
> + to allow the user to detect if a primary process is running.
> + Use cases for this feature include fault detection, and monitoring
> + using secondary processes.
It is not in the right section (fixed issues).
Moved and reworded before applying:
* **Added function to check primary process state.**
next prev parent reply other threads:[~2016-03-09 15:04 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-20 13:25 [dpdk-dev] [PATCH] " Harry van Haaren
2016-01-21 6:14 ` Qiu, Michael
2016-01-21 6:19 ` Matthew Hall
2016-01-21 9:02 ` Van Haaren, Harry
2016-01-22 17:37 ` Bruce Richardson
2016-01-25 8:06 ` Qiu, Michael
2016-01-25 11:44 ` Van Haaren, Harry
2016-01-26 19:13 ` Bruce Richardson
2016-01-27 10:35 ` Van Haaren, Harry
2016-01-25 8:11 ` Qiu, Michael
2016-01-25 11:51 ` Van Haaren, Harry
2016-01-26 2:25 ` Qiu, Michael
2016-01-26 9:04 ` Van Haaren, Harry
2016-01-26 11:07 ` Qiu, Michael
2016-01-26 11:19 ` Van Haaren, Harry
2016-01-27 10:31 ` [dpdk-dev] [PATCH v2] " Harry van Haaren
2016-02-02 14:11 ` [dpdk-dev] [PATCH v3] " Harry van Haaren
2016-02-23 14:10 ` [dpdk-dev] [PATCH v4] " Harry van Haaren
2016-02-24 13:50 ` Tahhan, Maryam
2016-03-04 18:07 ` Thomas Monjalon
2016-03-07 11:37 ` [dpdk-dev] [PATCH v5] " Harry van Haaren
2016-03-07 12:02 ` [dpdk-dev] [PATCH v6] " Harry van Haaren
2016-03-08 8:42 ` David Marchand
2016-03-08 9:58 ` Van Haaren, Harry
2016-03-08 11:13 ` Thomas Monjalon
2016-03-08 11:19 ` David Marchand
2016-03-08 13:57 ` Van Haaren, Harry
2016-03-08 14:40 ` David Marchand
2016-03-08 17:07 ` [dpdk-dev] [PATCH v7 0/2] eal: add function to check primary alive Harry van Haaren
2016-03-08 17:07 ` [dpdk-dev] [PATCH v7 1/2] eal: fix race-condition in pri/sec proc startup Harry van Haaren
2016-03-08 17:07 ` [dpdk-dev] [PATCH v7 2/2] eal: add function to check if primary proc alive Harry van Haaren
2016-03-09 10:12 ` [dpdk-dev] [PATCH v8 0/2] eal: add function to check primary alive Harry van Haaren
2016-03-09 10:12 ` [dpdk-dev] [PATCH v8 1/2] eal: fix race-condition in pri/sec proc startup Harry van Haaren
2016-03-09 13:23 ` Sergio Gonzalez Monroy
2016-03-09 10:12 ` [dpdk-dev] [PATCH v8 2/2] eal: add function to check if primary proc alive Harry van Haaren
2016-03-09 11:07 ` [dpdk-dev] [PATCH v8 0/2] eal: add function to check primary alive David Marchand
2016-03-09 12:59 ` Sergio Gonzalez Monroy
2016-03-09 13:37 ` [dpdk-dev] [PATCH v9 " Harry van Haaren
2016-03-09 13:37 ` [dpdk-dev] [PATCH v9 1/2] eal: fix race-condition in pri/sec proc startup Harry van Haaren
2016-03-09 14:27 ` Sergio Gonzalez Monroy
2016-03-09 13:37 ` [dpdk-dev] [PATCH v9 2/2] eal: add function to check if primary proc alive Harry van Haaren
2016-03-09 15:02 ` Thomas Monjalon [this message]
2016-03-09 15:17 ` [dpdk-dev] [PATCH v9 0/2] eal: add function to check primary alive Thomas Monjalon
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