tree 38e6e587a193ef360c1132e6531fc21c2069fca7
parent 11b389f21e4531c23fb8a8474bc8fc7ac2e136a5
author Benoît Canet <benoit.canet@irqsave.net> 1400237516 +0200
committer Luiz Capitulino <lcapitulino@redhat.com> 1400250959 -0400

qapi: skip redundant includes

The purpose of this change is to help create a json file containing
common definitions; each bit of generated C code must be emitted
only one time.

A second history global to all QAPISchema instances has been added
to detect when a file is included more than one time and skip these
includes.
It does not act as a stack and the changes made to it by the
__init__ function are propagated back to the caller so it's really
a global state.

Signed-off-by: Benoit Canet <benoit@irqsave.net>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>