Re: [dpdk-dev] [PATCH 2/2] examples: enable building multiprocess applications

[Bruce Richardson <bruce.richardson@intel.com>]

On Thu, May 23, 2019 at 02:54:13PM +0000, Ali Alnubani wrote:
> This enables building the example multiprocess applications in
> the subdirectory multi_process.
> 
> Signed-off-by: Ali Alnubani <alialnu@mellanox.com>
> ---
>  examples/meson.build                               |  8 +++++++-
>  .../client_server_mp/mp_client/meson.build         | 14 ++++++++++++++
>  .../client_server_mp/mp_server/meson.build         | 14 ++++++++++++++
>  examples/multi_process/hotplug_mp/meson.build      | 12 ++++++++++++
>  examples/multi_process/simple_mp/meson.build       | 12 ++++++++++++
>  .../multi_process/{ => symmetric_mp}/meson.build   |  8 +++++---
>  6 files changed, 64 insertions(+), 4 deletions(-)
>  create mode 100644 examples/multi_process/client_server_mp/mp_client/meson.build
>  create mode 100644 examples/multi_process/client_server_mp/mp_server/meson.build
>  create mode 100644 examples/multi_process/hotplug_mp/meson.build
>  create mode 100644 examples/multi_process/simple_mp/meson.build
>  rename examples/multi_process/{ => symmetric_mp}/meson.build (68%)
> 
> diff --git a/examples/meson.build b/examples/meson.build
> index 53a786eb4..647114c23 100644
> --- a/examples/meson.build
> +++ b/examples/meson.build
> @@ -24,7 +24,7 @@ all_examples = [
>  	'l2fwd-keepalive', 'l3fwd',
>  	'l3fwd-acl', 'l3fwd-power',
>  	'l3fwd-vf', 'link_status_interrupt',
> -	'load_balancer', 'multi_process',
> +	'load_balancer',
>  	'netmap_compat', 'packet_ordering',
>  	'performance-thread', 'ptpclient',
>  	'qos_meter', 'qos_sched',
> @@ -35,6 +35,12 @@ all_examples = [
>  	'vhost', 'vhost_crypto',
>  	'vhost_scsi', 'vm_power_manager',
>  	'vmdq', 'vmdq_dcb',
> +	'multi_process/simple_mp',
> +	'multi_process/hotplug_mp',
> +	'multi_process/symmetric_mp',
> +	'multi_process/client_server_mp/mp_server',
> +	'multi_process/client_server_mp/mp_client',
> +
>  ]

Since these are in alphabetical order, I think we should keep the
multi-process apps in the list in the correct order, rather than at the end.

>  # install all example code on install - irrespective of whether the example in
>  # question is to be built as part of this build or not.
> diff --git a/examples/multi_process/client_server_mp/mp_client/meson.build b/examples/multi_process/client_server_mp/mp_client/meson.build
> new file mode 100644
> index 000000000..196c39fc5
> --- /dev/null
> +++ b/examples/multi_process/client_server_mp/mp_client/meson.build
> @@ -0,0 +1,14 @@
> +# SPDX-License-Identifier: BSD-3-Clause
> +# Copyright 2019 Mellanox Technologies, Ltd
> +
> +# meson file, for building this example as part of a main DPDK build.
> +#
> +# To build this example as a standalone application with an already-installed
> +# DPDK instance, use 'make'
> +
> +includes += include_directories('../shared')
> +
> +name = 'mp_client'

I believe your previous patch in this set already set up the names
correctly for these apps, so I think you should remove this and the other
name assignment lines in the other files. I'd like to try and enforce
consistency in naming, and not having overrides of the name value in the
individual app meson.build files is key to enforcing that consistency.

Otherwise, thanks for doing this, and the rest of the patch looks fine to
me.

/Bruce