For now, SGC must be used, but `configure' does not select it
automatically.
Also, support Cygwin (in addition to MSYS) as a build environment
when using MinGW compilers. Since I build in a Cygwin environment
(which seemed to be the easiest way to get MinGW-w64 gcc), I use
../configure --host=x86_64-w64-mingw32 --enable-sgc
The synchronization result of a log receiver is now a vector of four
values, instead of three, where the last one reports the name.
Also, an optional argument to `make-logger' provides a notification
callback for each event sent to the logger.
These changes enable more control over loggers and events. Suppose
that you have processes A and B, and you want all log events of A
to be visible to B, but not vice-versa. Furthermore, you want the
log events to appear at B in the right order: if A logs an event
before B, then A's event should arrive at a log receiver's before
B's. Now that a log receiver gets the name associated with the
original event, and now that the name can be re-sent in a
`log-receiver', it's possible to give A and B separate loggers and
send all of the events from A's logger to B's logger. Furthermore,
you can use the notification callback so that when an event is logged
in B, you can make sure that all available events from from A's
logger have been transferred to B's logger.
A phantom byte string is a small object that the memory
manager treats as an arbitrary-sized object, where the
size is specified when the phantom byte string is created
or or when size is changed via `set-phantom-bytes!'.
Keep track of whether any Racket-managed subprocesses are pending,
and use waitpid(0, ...) only if there is one, to better cooperate
with an embedding environment.
Also, add a chapter to the "Inside" manual to explain the issues.
As long as some thread is ready to run, and in case the threads
synchronize after very little work, keep checking threads for
at least one thread quantum.
Allowing them would require support for immutable fxvectors and
flvectors, interning, and more. Since the motivation for reader
support is to make marshaling and unmarshaling easier, allow
them only in `read' mode. Change printing to make then unquotable.
Also, describe the patch in the Windows build notes.
This change increases access to symbol fonts, though not in a
completely consistent and portable way. See the closed problem
report for more information, as well as a 24-NOV-2012 post
on the Racket mailing list:
http://lists.racket-lang.org/users/archive/2012-November/055141.html
Closes PR 13300
This change makes document building --- and specially incremental
document building --- more scalable. The global duplicate-definition
check is handled by a database query, for example.
