[lxc-devel] [PATCH] lxc-info: add option -t, --state-is=STATE to test for a given test
Stéphane Graber
stgraber at ubuntu.com
Mon Nov 26 19:30:04 UTC 2012
On 11/26/2012 02:25 PM, Serge Hallyn wrote:
> Quoting Natanael Copa (ncopa at alpinelinux.org):
>> Add an option to test for a give state. This is useful for scripts.
>> It lets us you do thing like:
>>
>> if lxc-info --name myname --state-is RUNNING; then
>> ...
>>
>> Signed-off-by: Natanael Copa <ncopa at alpinelinux.org>
>
> Acked-by: Serge E. Hallyn <serge.hallyn at ubuntu.com>
And pushed to staging. Thanks.
>> ---
>> src/lxc/lxc_info.c | 15 +++++++++++----
>> 1 file changed, 11 insertions(+), 4 deletions(-)
>>
>> diff --git a/src/lxc/lxc_info.c b/src/lxc/lxc_info.c
>> index 809769e..1a1cc22 100644
>> --- a/src/lxc/lxc_info.c
>> +++ b/src/lxc/lxc_info.c
>> @@ -34,12 +34,14 @@
>>
>> static bool state;
>> static bool pid;
>> +static char *test_state = NULL;
>>
>> static int my_parser(struct lxc_arguments* args, int c, char* arg)
>> {
>> switch (c) {
>> case 's': state = true; break;
>> case 'p': pid = true; break;
>> + case 't': test_state = arg; break;
>> }
>> return 0;
>> }
>> @@ -47,6 +49,7 @@ static int my_parser(struct lxc_arguments* args, int c, char* arg)
>> static const struct option my_longopts[] = {
>> {"state", no_argument, 0, 's'},
>> {"pid", no_argument, 0, 'p'},
>> + {"state-is", required_argument, 0, 't'},
>> LXC_COMMON_OPTIONS,
>> };
>>
>> @@ -58,9 +61,11 @@ static struct lxc_arguments my_args = {
>> lxc-info display some information about a container with the identifier NAME\n\
>> \n\
>> Options :\n\
>> - -n, --name=NAME NAME for name of the container\n\
>> - -s, --state shows the state of the container\n\
>> - -p, --pid shows the process id of the init container\n",
>> + -n, --name=NAME NAME for name of the container\n\
>> + -s, --state shows the state of the container\n\
>> + -p, --pid shows the process id of the init container\n\
>> + -t, --state-is=STATE test if current state is STATE\n\
>> + returns success if it matches, false otherwise\n",
>> .options = my_longopts,
>> .parser = my_parser,
>> .checker = NULL,
>> @@ -81,10 +86,12 @@ int main(int argc, char *argv[])
>> if (!state && !pid)
>> state = pid = true;
>>
>> - if (state) {
>> + if (state || test_state) {
>> ret = lxc_getstate(my_args.name);
>> if (ret < 0)
>> return 1;
>> + if (test_state)
>> + return strcmp(lxc_state2str(ret), test_state) != 0;
>>
>> printf("state:%10s\n", lxc_state2str(ret));
>> }
>> --
>> 1.8.0
>>
>>
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>
> ------------------------------------------------------------------------------
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> web console. Get in-depth insight into apps, servers, databases, vmware,
> SAP, cloud infrastructure, etc. Download 30-day Free Trial.
> Pricing starts from $795 for 25 servers or applications!
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--
Stéphane Graber
Ubuntu developer
http://www.ubuntu.com
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