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.
For both original and @2x, adjust images to use alphas for the corner,
instead of drawing with clipping, which avoids alignment problems on
an @2x display.
The faster path applies in the common case of drawing a whole
bitmap, as opposed to a section of the bitmap.
Thanks to Laurent Orseau for tracking down this performance issue.
This one of those classic n^2-loop-that-should-be-linear bug. The fix
speeds up this program (when run in DrRacket) by about 1.75x:
(for ([x (in-range 10000)])
(display "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz\n"))
The bug is fairly old too: I introduced this bug on March 6th,
2004. (Thanks, Sam, for making that old history accessible!)
This change avoids the problem of a bad "index.html" on a doucment
rendering error, where the presense of an "index.html" would count
as successes on a retry.
The exit handler in the user process flushes via the plumber,
but maybe DrRacket could do more with the user's plumber, such as
attempting to exit instead of always forcing the old user process to
terinate when the "Run" button is clicked.
A sandbox needs it own plumber so that sandboxed code cannot attach an
arbitrary callback to the plumber outside the sandbox. The plumber
outside the sandbox gets a flush callback that tells (within the
sandbox thread) the new plumber to flush.
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.
