Pass a channel to visitor functions called by parallelVisit that
allows them to pause the current visitor until a given visitor
has finished. This allows parallelVisit to work on a dependency
graph while it is being mutated.
Test: Test_parallelVisit
Change-Id: Id8b1542c22ac9914439310e31d992ae0d7318d69
Blueprint is a meta-build system that reads in Blueprints files that describe
modules that need to be built, and produces a
Ninja manifest describing the commands that
need to be run and their dependencies. Where most build systems use built-in
rules or a domain-specific language to describe the logic for converting module
descriptions to build rules, Blueprint delegates this to per-project build
logic written in Go. For large, heterogenous projects this allows the inherent
complexity of the build logic to be maintained in a high-level language, while
still allowing simple changes to individual modules by modifying easy to
understand Blueprints files.
c4773d90a2
