[C][Client] Allocate memory for the element of array when the type is number

[ityuhui]

If the type of element of an array is number, e.g.

        "supplementalGroups": {
          "description": "A list of groups applied to the first process run in each container, in addition to the container's primary GID.  If unspecified, no groups will be added to any container.",
          "items": {
            "format": "int64",
            "type": "integer"
          },
          "type": "array"
        },

The current template code of CLibcurl will not allocate memory for the element before adding it to a list:

    list_addElement(supplemental_groupsList , &supplemental_groups_local->valuedouble);

supplemental_groups_local is a local variable, it will be released soon. And then the pointer pointing to supplemental_groups_local->valuedouble will be invalid.

This PR allocates memory for the element:

    double *supplemental_groups_local_value = (double *)calloc(1, sizeof(double));
    if(!supplemental_groups_local_value)
    {
        goto end;
    }
    *supplemental_groups_local_value = supplemental_groups_local->valuedouble;
    list_addElement(supplemental_groupsList , supplemental_groups_local_value);

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Hi @wing328 @zhemant @michelealbano

Could you please review this PR ? Thanks.

[zhemant]

Thank you for the PR @ityuhui

By any chance do you have a test code that I can try? If we have an issue described in this PR, I think we would have to update boolean as well in primitive containers and numeric and boolean in map parsing.

For boolean we are currently doing same: list_addElement({{{name}}}List , {{{name}}}_local->valueint);

[ityuhui]

I don't have a test code, the issue comes from kubernetes-client/c#59 and kubernetes-client/c#70

I think boolean array has this issue too but we don't have any Swagger/OpenAPI spec.
So I prefer only fixing the issue of "number array"in this PR because the fix will be verified by the above 2 issues.

[zhemant]

Okay, let's fix this for now, and we can fix others as and when we come across them.

[zhemant]

LGTM

[ityuhui]

Thank you @zhemant !

[ityuhui]

Thank you @wing328 !