diff options
Diffstat (limited to 'test/atomicity.gdb')
| -rw-r--r-- | test/atomicity.gdb | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/test/atomicity.gdb b/test/atomicity.gdb new file mode 100644 index 00000000..fd675257 --- /dev/null +++ b/test/atomicity.gdb @@ -0,0 +1,50 @@ +# This gdb script runs notmuch new and simulates killing and +# restarting notmuch new after every Xapian commit. To simulate this +# more efficiently, this script runs notmuch new and, immediately +# after every Xapian commit, it *pauses* the running notmuch new, +# copies the entire database and maildir to a snapshot directory, and +# executes a full notmuch new on that snapshot, comparing the final +# results with the expected output. It can then resume the paused +# notmuch new, which is still running on the original maildir, and +# repeat this process. + +set args new + +# Make Xapian commit after every operation instead of batching +set environment XAPIAN_FLUSH_THRESHOLD = 1 + +# gdb can't keep track of a simple integer. This is me weeping. +shell echo 0 > outcount + +shell touch inodes + +break rename +commands +# As an optimization, only consider snapshots after a Xapian commit. +# Xapian overwrites record.base? as the last step in the commit. +shell echo > gdbcmd +shell stat -c %i $MAIL_DIR/.notmuch/xapian/record.base* > inodes.new +shell if cmp inodes inodes.new; then echo cont > gdbcmd; fi +shell mv inodes.new inodes +source gdbcmd + +# Save a backtrace in case the test does fail +set logging file backtrace +set logging on +backtrace +set logging off +shell mv backtrace backtrace.`cat outcount` + +# Snapshot the database +shell rm -r $MAIL_DIR.snap/.notmuch +shell cp -r $MAIL_DIR/.notmuch $MAIL_DIR.snap/.notmuch +# Restore the mtime of $MAIL_DIR.snap, which we just changed +shell touch -r $MAIL_DIR $MAIL_DIR.snap +# Run notmuch new to completion on the snapshot +shell NOTMUCH_CONFIG=${NOTMUCH_CONFIG}.snap XAPIAN_FLUSH_THRESHOLD=1000 notmuch new > /dev/null +shell NOTMUCH_CONFIG=${NOTMUCH_CONFIG}.snap notmuch search '*' > search.`cat outcount` 2>&1 +shell echo $(expr $(cat outcount) + 1) > outcount +cont +end + +run |