Using append simplifies the code and makes it work if
the initial capacity of the slice is smaller than the
number of items pushed.
R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/6869060
The first iteration always do `m[0], m[0] = m[0], m[0]`, because
`rand.Intn(1)` is 0.
fun note: IIRC in TAOCP version of this algorithm, `i` goes
backward (n-1->1), meaning that the "already" shuffled part of the
array is never altered betweens iterations, while in the current
implementation the "not-yet" shuffled part of the array is
conserved between iterations.
R=golang-dev
CC=golang-dev
https://golang.org/cl/6845121
64bit atomics are broken on 32bit systems. This is issue 599.
linux/arm builders all broke with this change, I am concerned that the other 32bit builders are silently impacted.
««« original CL description
net: fix data races on deadline vars
Fixes#4434.
R=mikioh.mikioh, bradfitz, dvyukov, alex.brainman
CC=golang-dev
https://golang.org/cl/6855110
»»»
R=rsc, mikioh.mikioh, dvyukov, minux.ma
CC=golang-dev
https://golang.org/cl/6852105
When a race happens inside of runtime (chan, slice, etc),
currently reports contain only user file:line.
If the line contains a complex expression,
it's difficult to figure out where the race exactly.
This change adds one more top frame with exact
runtime function (e.g. runtime.chansend, runtime.mapaccess).
R=golang-dev
CC=golang-dev
https://golang.org/cl/6851125
RFC 2616: "The 204 response MUST NOT include a message-body,
and thus is always terminated by the first empty line after
the header fields."
Previously we'd trigger chunked encoding by default on
responses, and then when finishing the request we'd write the
chunk trailers, which counted as a message-body.
Fixes#4454
R=golang-dev
CC=golang-dev
https://golang.org/cl/6782139
More lenient parsing with better error recovery.
It's easier for the type check to pick up the slack.
R=iant
CC=golang-dev
https://golang.org/cl/6856108
Test creates 2 tcp connections for put and get. Make sure
these are closed properly after test is over, otherwise
server hangs waiting for connection to be closed.
R=golang-dev, bradfitz, dave
CC=golang-dev
https://golang.org/cl/6842109
Update #4434.
The proposal attempts to reduce the number of places where fd,{r,w}deadline is checked and updated in preparation for issue 4434. In doing so the deadline logic is simplified by letting the pollster return errTimeout from netFD.Wait{Read,Write} as part of the wakeup logic.
The behaviour of setting n = 0 has been restored to match rev 2a55e349097f, which was the previous change to fd_unix.go before CL 6851096.
R=jsing, bradfitz, mikioh.mikioh, rsc
CC=fullung, golang-dev
https://golang.org/cl/6850110
A fix similar to CL 6859043 was effective in resolving the intermittent failure.
Fixes#4423.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6854102
This CL continues with introducing IPv6 scoped addressing capability
into the net package.
Update #4234.
R=rsc
CC=golang-dev
https://golang.org/cl/6842053
Package format is a utility package that takes care of
parsing, sorting of imports, and formatting of .go source
using the canonical gofmt formatting parameters.
Use go/format in various clients instead of the lower-level components.
R=r, bradfitz, dave, rogpeppe, rsc
CC=golang-dev
https://golang.org/cl/6852075
Garbage collection code (to be merged later) is calling functions
which have many local variables. This increases the probability that
the stack capacity won't be big enough to hold the local variables.
So, start gc() on a bigger stack to eliminate a potentially large number
of calls to runtime·morestack().
R=rsc, remyoudompheng, dsymonds, minux.ma, iant, iant
CC=golang-dev
https://golang.org/cl/6846044
The syslog implementation was not correctly implementing the
traditional syslog format because it had a confused notion of
'priority'. syslog priority is not a single number but is, in
fact, the combination of a facility number and a severity. The
previous Go syslog implementation had a single Priority that
appeared to be the syslog severity and no way of setting the
facility. That meant that all syslog messages from Go
programs appeared to have a facility of 0 (LOG_KERN) which
meant they all appeared to come from the kernel.
Also, the 'prefix' was in fact the syslog tag (changed the
internal name for clarity as the term tag is more widely used)
and the timestamp and hostname values were missing from
messages.
With this change syslog messages are generated in the correct
format with facility and severity combined into a priority,
the timestamp in RFC3339 format, the hostname, the tag (with
the PID in [] appened) and the message.
The format is now:
<PRI>1 TIMESTAMP HOSTNAME TAG[PID]: MSG
The TIMESTAMP, HOSTNAME and PID fields are filled in
automatically by the package. The TAG and the MSG are supplied
by the user. This is what rsyslogd calls TraditionalFormat and
should be compatible with multiple systems.
R=rsc, jgc, 0xjnml, mikioh.mikioh, bradfitz
CC=golang-dev
https://golang.org/cl/6782118
This CL defines the API. Implementation will come in follow-up CLs.
Update #1960.
R=bradfitz, dr.volker.dobler, rsc
CC=golang-dev
https://golang.org/cl/6849092
It's better to use IsValid() then checking a (possibly
partially set up) position against NoPos directly.
R=dsymonds
CC=golang-dev
https://golang.org/cl/6855099
Thanks to Dustin Sallings for exposing the most frustrating
bug ever, and for providing repro cases (which formed the
basis of the new tests in this CL), and to Dave Cheney and
Dmitry Vyukov for help debugging and fixing.
This CL depends on submited pollster CLs ffd1e075c260 (Unix)
and 14b544194509 (Windows), as well as unsubmitted 6852085.
Some operating systems (OpenBSD, NetBSD, ?) may still require
more pollster work, fixing races (Issue 4434 and
http://goo.gl/JXB6W).
Tested on linux-amd64 and darwin-amd64, both with GOMAXPROCS 1
and 4 (all combinations of which previously failed differently)
Fixes#4191
Update #4434 (related fallout from this bug)
R=dave, bradfitz, dsallings, rsc, fullung
CC=golang-dev
https://golang.org/cl/6851061
Also: Can set base indentation in printer.Config: all code
is going to be indented by at least that amount (except for
raw string literals spanning multiple lines, since their
values must not change).
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6847086
also:
- composite literal checking close to complete
- cleaned up parameter, method, field checking
- don't let panics escape type checker
- more TODOs eliminated
R=rsc
CC=golang-dev
https://golang.org/cl/6816083
This CL starts to introduce IPv6 scoped addressing capability
into the net package.
The Public API changes are:
+pkg net, type IPAddr struct, Zone string
+pkg net, type IPNet struct, Zone string
+pkg net, type TCPAddr struct, Zone string
+pkg net, type UDPAddr struct, Zone string
Update #4234.
R=rsc, bradfitz, iant
CC=golang-dev
https://golang.org/cl/6849045
If the a network read would block, and a packet arrived just before the timeout expired, then the number of bytes from the previous (blocking) read, -1, would be returned.
This change restores the previous logic, where n would be unconditionally set to 0 if err != nil, but was skipped due to a change in CL 6851096.
The test for this change is CL 6851061.
R=bradfitz, mikioh.mikioh, dvyukov, rsc
CC=golang-dev
https://golang.org/cl/6852085
Should make BSDs more reliable. (they seem to reuse ports
quicker than Linux)
Tested by hand with local modifications to force reuse on
Linux. (net/http tests failed before, pass now) Details in the
issue.
Fixes#4436
R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/6847101
The tests verify that deadlines are "persistent",
read/write deadlines do not interfere, can be reset,
read deadline can be set with both SetDeadline()
and SetReadDeadline(), etc.
R=golang-dev, bradfitz, dave
CC=golang-dev
https://golang.org/cl/6850070
The fix for issue 4403 may include more calls to time.Now().UnixNano(). I was concerned that if this function allocated it would cause additional garbage on the heap. It turns out that it doesn't, which is a nice surprise.
Also add benchmark for Now().UnixNano()
R=bradfitz, minux.ma
CC=golang-dev
https://golang.org/cl/6849097
Otherwise a fast sender or receiver can make sockets always
readable or writable, preventing deadline checks from ever
occuring.
Update #4191 (fixes it with other CL, coming separately)
Fixes#4403
R=golang-dev, alex.brainman, dave, mikioh.mikioh
CC=golang-dev
https://golang.org/cl/6851096
madvise was missing so implement it in assembler. This change
needs to be extended to the other BSD variantes (Net and Open)
Without this change the scavenger will attempt to pass memory back
to the operating system when it has become idle, but the memory is
not returned and for long running Go processes the total memory used
can grow until OOM occurs.
I have only been able to test the code on FreeBSD AMD64. The ARM
platforms needs testing.
R=golang-dev, mikioh.mikioh, dave, jgc, minux.ma
CC=golang-dev
https://golang.org/cl/6850081
Update OpenBSD runtime to use the new version of the sys___tfork
syscall and switch TLS initialisation from sys_arch to sys___set_tcb
(note that both of these syscalls are available in OpenBSD 5.2).
R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/6843058
Putting aside the unguarded access to fd.sysfile, the condition will never be true as fd.incref above handles the closed condition.
R=mikioh.mikioh, dvyukov
CC=golang-dev
https://golang.org/cl/6845062
The exp/types packages does not support the gccgo export data
format. At some point it should, but not yet.
R=gri, bradfitz, r, iant, dsymonds
CC=golang-dev
https://golang.org/cl/6854068
Noticed this while closing tabs. Yesterday I thought I could
ignore this garbage and hope that a fix for issue 2205 handled
it, but I just realized that's the opposite case,
string->[]byte, whereas this is []byte->string. I'm having a
hard time convincing myself that an Issue 2205-style fix with
static analysis and faking a string header would be safe in
all cases without violating the memory model (callee assumes
frozen memory; are there non-racy ways it could keep being
modified?)
R=dsymonds
CC=dave, gobot, golang-dev
https://golang.org/cl/6850067
There's no good reason to make any printer state adjustments
simply because the file name in node position information has
changed. Eliminate the relevant code.
R=r
CC=golang-dev
https://golang.org/cl/6856054
This enables to loop over some goroutines, e.g. to print the
backtrace of goroutines 1 to 9:
set $i = 1
while $i < 10
printf "backtrace of goroutine %d:\n", $i
goroutine $i++ bt
end
R=lvd, lvd
CC=golang-dev
https://golang.org/cl/6843071
Fixes#4369.
Remove the check for fd.sysfd < 0, the first line of fd.accept() tests if the fd is open correctly and will handle the fd being closed during accept.
R=dvyukov, bradfitz
CC=golang-dev
https://golang.org/cl/6843076
This is part 1 of a series of proposals to fix issue 4369.
In resolving issue 3507 it was decided not to nil out the inner conn.fd field to avoid a race. This implies the checks for fd == nil inside incref/decref are never true.
Removing this logic removes one source of errClosing error values, which affects issue 4373 and moves towards bradfitz's request that fd.accept() return io.EOF when closed concurrently.
Update #4369.
Update #4373.
R=mikioh.mikioh, bradfitz, dvyukov, rsc
CC=golang-dev
https://golang.org/cl/6852057
ASTs may be created by various tools and built from nodes of
different files. An incorrectly constructed AST will likely
not print at all, but a (structurally) correct AST with bad
position information should still print structurally correct.
One heuristic used was to reset indentation when the filename
in the position information of nodes changed. However, this
can lead to wrong indentation for structurally correct ASTs.
Fix: Don't change the indentation in this case.
Related to issue 4300.
R=r
CC=golang-dev
https://golang.org/cl/6849066
This significantly decreases amount of shadow memory
mapped by race detector.
I haven't tested on Windows, but on Linux it reduces
virtual memory size from 1351m to 330m for fmt.test.
Fixes#4379.
R=golang-dev, alex.brainman, iant
CC=golang-dev
https://golang.org/cl/6849057
Add support for loading X.509 key pairs that consist of a certificate
with an EC public key and its corresponding EC private key.
R=agl
CC=golang-dev
https://golang.org/cl/6776043
compare incrementally. Also modified collation API to be more high-level
by removing the need for an explicit buffer to be passed as an argument.
This considerably speeds up Compare and CompareString. This change also eliminates
the need to reinitialize the normalization buffer for each use of an iter. This
also significantly improves performance for Key and KeyString.
R=r, rsc
CC=golang-dev
https://golang.org/cl/6842050
Since we no longer skip the first entry when reading a symbol table,
we no longer need to allow for the offset difference when processing
the GNU version symbols.
Unbreaks builds on Linux.
R=golang-dev, agl, iant
CC=golang-dev
https://golang.org/cl/6843057
