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600462834f
In many files there are header comments that contain an Author: statement, supposedly reflecting who originally wrote the code. In a large collaborative project like libvirt, any non-trivial file will have been modified by a large number of different contributors. IOW, the Author: comments are quickly out of date, omitting people who have made significant contribitions. In some places Author: lines have been added despite the person merely being responsible for creating the file by moving existing code out of another file. IOW, the Author: lines give an incorrect record of authorship. With this all in mind, the comments are useless as a means to identify who to talk to about code in a particular file. Contributors will always be better off using 'git log' and 'git blame' if they need to find the author of a particular bit of code. This commit thus deletes all Author: comments from the source and adds a rule to prevent them reappearing. The Copyright headers are similarly misleading and inaccurate, however, we cannot delete these as they have legal meaning, despite being largely inaccurate. In addition only the copyright holder is permitted to change their respective copyright statement. Reviewed-by: Erik Skultety <eskultet@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
133 lines
3.5 KiB
Plaintext
133 lines
3.5 KiB
Plaintext
#!/usr/bin/stap
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#
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# Copyright (C) 2011 Red Hat, Inc.
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library. If not, see
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# <http://www.gnu.org/licenses/>.
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#
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#
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# This script will monitor all operation of the libvirt event loop
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# in both client and server. Example output is:
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#
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# 0.000 begin
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# 2.359 18185 + handle 1 4 1
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# 2.360 18185 + handle 2 6 1
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# 2.360 18185 * handle 2 0
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# 2.360 14370 > handle 3 1
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# 2.360 14370 + handle 33 16 1
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# 2.361 14370 ~ 7 -1
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# 2.361 14370 > handle 33 1
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# 2.361 14370 * handle 33 1
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# 2.361 14370 * handle 33 1
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# 2.361 14370 * handle 33 3
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# 2.361 14370 ~ 7 -1
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# 2.361 14370 > handle 1 1
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# 2.361 14370 ~ 7 -1
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# 2.361 14370 > handle 33 2
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# 2.361 14370 * handle 33 1
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# 2.361 14370 ~ 7 -1
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# 2.361 18185 * handle 2 1
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# 2.362 18185 * handle 2 0
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# 2.362 14370 > handle 33 1
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# 2.362 14370 * handle 33 1
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# 2.362 14370 * handle 33 1
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# 2.362 14370 ~ 7 -1
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# 2.367 14370 * handle 33 3
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# 2.367 14370 > handle 1 1
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# 2.367 14370 ~ 7 -1
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# 2.367 14370 > handle 33 2
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# 2.367 14370 * handle 33 1
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# 2.367 14370 ~ 7 -1
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# 2.370 18185 - timeout 1
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# 2.370 14370 ! handle 33
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# 2.371 14370 - handle 33
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# 2.371 14370 ~ 6 -1
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#
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# Legend:
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# + Add
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# - Remove
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# * Update
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# > dispatch
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# ! purge
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# ~ Iterate
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#
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#
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# Show all updates to registered timeouts/handles
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global showUpdates = 1
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# Show when handles/timeouts are dispatched
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global showDispatch = 1
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# Show iterations of the event loop
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global showIter = 1
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global start
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# Print a string, with a timestamp relative to the start of the script
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function print_ts(msg)
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{
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now = gettimeofday_ns() / (1000*1000)
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delta = (now - start)
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printf("%3d.%03d %s\n", (delta / 1000), (delta % 1000), msg);
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}
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probe begin {
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start = gettimeofday_ns() / (1000*1000)
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print_ts("begin");
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}
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probe libvirt.event_poll.add_handle {
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print_ts(sprintf("%d + handle %d %d %d", pid(), watch, fd, events));
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}
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probe libvirt.event_poll.remove_handle {
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print_ts(sprintf("%d - handle %d", pid(), watch));
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}
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probe libvirt.event_poll.update_handle {
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if (showUpdates)
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print_ts(sprintf("%d * handle %d %d", pid(), watch, events));
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}
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probe libvirt.event_poll.purge_handle {
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print_ts(sprintf("%d ! handle %d", pid(), watch));
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}
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probe libvirt.event_poll.dispatch_handle {
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if (showDispatch)
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print_ts(sprintf("%d > handle %d %d", pid(), watch, events));
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}
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probe libvirt.event_poll.add_timeout {
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print_ts(sprintf("%d + timeout %d %d", pid(), timer, frequency));
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}
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probe libvirt.event_poll.remove_timeout {
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print_ts(sprintf("%d - timeout %d", pid(), timer));
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}
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probe libvirt.event_poll.update_timeout {
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if (showUpdates)
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print_ts(sprintf("%d * timeout %d %d", pid(), timer, frequency));
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}
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probe libvirt.event_poll.purge_timeout {
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print_ts(sprintf("%d ! timeout %d", pid(), timer));
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}
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probe libvirt.event_poll.dispatch_timeout {
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if (showDispatch)
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print_ts(sprintf("%d > timeout %d", pid(), timer));
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}
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probe libvirt.event_poll.run {
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if (showIter)
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print_ts(sprintf("%d ~ %d %d", pid(), nfds, timeout));
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}
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