Added methods to get and put data into context

[jimil749]

Signed-off-by: Jimil Desai [email protected]

[update-docs]

Thanks for opening this pull request! The maintainers of this repository would appreciate it if you would create a changelog item based on your changes.

[ishank011]

Put this code in a separate file in the same package. Maybe ctxmap.go. And can you also add some unit tests?

[jimil749]

@ishank011 I tried to add the unit tests but it fails when I run with go test -race (Seems to work fine when run it without the race flag). Not totally sure why.
It fails with the following error:

fatal error: checkptr: pointer arithmetic result points to invalid allocation