The cache was keyed on `current-library-collection-paths`, but
not other parameters such as `current-library-collection-links`,
so it was too "sticky" in the case that some parameters changed.
Adjust the cache to be specific to loaded module in a namespace's
module registry.
- add a generator for cons/c
- make flat-rec-contract not just build the predicate, meaning:
- it has a better name
- it can do random generation
- make the procedures that come from any/c random generation indicate that from their names
- make or/c with one argument just (check and) return that argument, so
(or/c (or/c number?)) has the name 'number?'
Avoid polling a file descriptor to determine whether it has bytes;
just try to read, and then go to epoll/kevent mode when available,
skipping a poll/select.
Mac OS Classic and Palm ae long since unsupported.
TCP support implies sockets (since old Mac TCP is gone).
For what it's worth, make the build work without TCP support, although
no one ever builds that way.
In v6.0.1.7, I tried to give a port-flushing job to custodians. They
turned out to be unqualified, so let's try employing specialists.
Thanks to Eli for pointing out the problem with the v6.0.1.7 design:
attaching callbacks to custodians allows a sandboxed task to escape
through the custodian hierarchy. Plumbers avoid this problem by
having no hierarchy.
The `catalog-archive` command not only copies a catalog, but also copies
all package sources referenced by the catalog to create a snapshot that
doesn't depend on any external pieces.
One reason you might want to do that is to download all packages on a
machine with general network access, and then building packages on a
(virtual) machine whose network access is limited.
This commit also adds support for relative package sources in the
catalog protocol, where a client converts a relative package source to
an absolute one. Since the relative-to-absolute conversion happens on
clients, relative sources will be of limited use until v6.0 and v6.0.1
become deprecated.
A new `current-pkg-lookup-version` parameter corrects the misuse of
`current-pkg-scope-version` for package-catalog queries.
This change solves a long-standing problem that reencoded output
was not flushed on exit, especially in the case that the
current output port is reencoded.
