Mercurial > hg
view tests/test-glog-topological.t @ 44248:12491abf93bd stable
worker: manually buffer reads from pickle stream
My previous fix (D8051, cb52e619c99e, which added Python's built-in buffering
to the pickle stream) has the problem that the selector will ignore the buffer.
When multiple pickled objects are read from the pipe into the buffer at once,
only one object will be loaded.
This can repeat until the buffer is full and delays the processing of completed
items until the worker exits, at which point the pipe is always considered
readable and all remaining items are processed.
This changeset reverts D8051, removing the buffer again. Instead, on Python 3
only, we use a wrapper to modify the "read" provided to the Unpickler to behave
more like a buffered read. We never read more bytes from the pipe than the
Unpickler requests, so the selector behaves as expected.
Also add a test case for "pickle data was truncated" issue.
https://phab.mercurial-scm.org/D8051#119193
Differential Revision: https://phab.mercurial-scm.org/D8076
author | Jan Alexander Steffens (heftig) <jan.steffens@gmail.com> |
---|---|
date | Tue, 04 Feb 2020 22:07:36 +0100 |
parents | 604c086ddde6 |
children | ed84a4d48910 |
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This test file aims at test topological iteration and the various configuration it can has. $ cat >> $HGRCPATH << EOF > [ui] > logtemplate={rev}\n > EOF On this simple example, all topological branch are displayed in turn until we can finally display 0. this implies skipping from 8 to 3 and coming back to 7 later. $ hg init test01 $ cd test01 $ hg unbundle $TESTDIR/bundles/remote.hg adding changesets adding manifests adding file changes added 9 changesets with 7 changes to 4 files (+1 heads) new changesets bfaf4b5cbf01:916f1afdef90 (9 drafts) (run 'hg heads' to see heads, 'hg merge' to merge) $ hg log -G o 8 | | o 7 | | | o 6 | | | o 5 | | | o 4 | | o | 3 | | o | 2 | | o | 1 |/ o 0 (display all nodes) $ hg log -G -r 'sort(all(), topo)' o 8 | o 3 | o 2 | o 1 | | o 7 | | | o 6 | | | o 5 | | | o 4 |/ o 0 (display nodes filtered by log options) $ hg log -G -r 'sort(all(), topo)' -k '.3' o 8 | o 3 | ~ o 7 | o 6 | ~ (revset skipping nodes) $ hg log -G --rev 'sort(not (2+6), topo)' o 8 | o 3 : o 1 | | o 7 | : | o 5 | | | o 4 |/ o 0 (begin) from the other branch $ hg log -G -r 'sort(all(), topo, topo.firstbranch=5)' o 7 | o 6 | o 5 | o 4 | | o 8 | | | o 3 | | | o 2 | | | o 1 |/ o 0 Topological sort can be turned on via config $ cat >> $HGRCPATH << EOF > [experimental] > log.topo=true > EOF $ hg log -G o 8 | o 3 | o 2 | o 1 | | o 7 | | | o 6 | | | o 5 | | | o 4 |/ o 0 Does not affect non-graph log $ hg log -T '{rev}\n' 8 7 6 5 4 3 2 1 0