Mercurial > hg
view tests/test-clone-update-order.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 | eb586ed5d8ce |
children | 8d72e29ad1e0 |
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$ hg init $ echo foo > bar $ hg commit -Am default adding bar $ hg up -r null 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ hg branch mine marked working directory as branch mine (branches are permanent and global, did you want a bookmark?) $ echo hello > world $ hg commit -Am hello adding world $ hg up -r null 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ hg branch other marked working directory as branch other $ echo good > bye $ hg commit -Am other adding bye $ hg up -r mine 1 files updated, 0 files merged, 1 files removed, 0 files unresolved $ hg clone -U -u . .#other ../b -r 0 -r 1 -r 2 -b other abort: cannot specify both --noupdate and --updaterev [255] $ hg clone -U .#other ../b -r 0 -r 1 -r 2 -b other adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 3 files (+2 heads) new changesets 8c68ee086fd0:fcc393352796 $ rm -rf ../b $ hg clone -u . .#other ../b -r 0 -r 1 -r 2 -b other adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 3 files (+2 heads) new changesets 8c68ee086fd0:fcc393352796 updating to branch mine 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ rm -rf ../b $ hg clone -u 0 .#other ../b -r 0 -r 1 -r 2 -b other adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 3 files (+2 heads) new changesets 8c68ee086fd0:fcc393352796 updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ rm -rf ../b $ hg clone -u 1 .#other ../b -r 0 -r 1 -r 2 -b other adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 3 files (+2 heads) new changesets 8c68ee086fd0:fcc393352796 updating to branch mine 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ rm -rf ../b $ hg clone -u 2 .#other ../b -r 0 -r 1 -r 2 -b other adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 3 files (+2 heads) new changesets 8c68ee086fd0:fcc393352796 updating to branch other 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ rm -rf ../b Test -r mine ... mine is ignored: $ hg clone -u 2 .#other ../b -r mine -r 0 -r 1 -r 2 -b other adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 3 files (+2 heads) new changesets 8c68ee086fd0:fcc393352796 updating to branch other 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ rm -rf ../b $ hg clone .#other ../b -b default -b mine adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 3 files (+2 heads) new changesets 8c68ee086fd0:fcc393352796 updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ rm -rf ../b $ hg clone .#other ../b adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files new changesets fcc393352796 updating to branch other 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ rm -rf ../b $ hg clone -U . ../c -r 1 -r 2 > /dev/null $ hg clone ../c ../b updating to branch other 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ rm -rf ../b ../c