Matt Harbison <matt_harbison@yahoo.com> [Mon, 21 Dec 2015 20:18:06 -0500] rev 27477
test-fileset: conditionalize output with symlink
timeless <timeless@mozdev.org> [Tue, 22 Dec 2015 02:24:16 +0000] rev 27476
commands: the first word of each note should be capital or `hg`
Gregory Szorc <gregory.szorc@gmail.com> [Sun, 20 Dec 2015 16:00:27 -0800] rev 27475
revlog: avoid string slice when decompressing u* chunks
Revlog chunks can be stored uncompressed. If the first byte of the
raw data is \0, we store the data as is. Else we prefix it with 'u'.
Before, we performed a string slice to strip out the 'u' prefix.
With this patch, we use a buffer to avoid an extra memory copy and
associated garbage collection overhead.
I was unable to verify any performance impact of this patch. For both
mozilla-central and the hg repos, the number of manifest revisions
with 'u' prefixes is very small - under 1%. So this change likely
isn't called enough to have an impact on manifest reading. However,
the reasoning behind this change is solid, so it should be safe.
Yuya Nishihara <yuya@tcha.org> [Thu, 17 Dec 2015 23:53:09 +0900] rev 27474
osutil: implement pure version of recvfds() for PyPy
This is less portable than the C version, but PyPy can't load CPython
extensions. So for now, this will be used on PyPy.
I've tested it on Linux amd64 and Mac OS X.
Yuya Nishihara <yuya@tcha.org> [Thu, 17 Dec 2015 23:41:46 +0900] rev 27473
osutil: implement recvmsg() of SCM_RIGHTS for chg command server
It will be used to attach client's stdio files to a background chg command
server.
The socket module of Python 2.x doesn't provide recvmsg(). This could be
implemented by using ctypes, but it would be less portable than the C version
because the handling of socket ancillary data heavily depends on preprocessor.
Also, some length fields are wrongly typed in the Linux kernel.
Matt Mackall <mpm@selenic.com> [Mon, 21 Dec 2015 14:52:18 -0600] rev 27472
cleanup: back out performance hacks amended into previous commit