A string similar to "0x____" should be treated as a string.
Currently it is processed as an Integer.
This alters the regex specified by http://yaml.org/type/int.html
to ensure at least one numerical symbol is present in the string
before converting to Integer.
https://github.com/ruby/psych/commit/81479b203e
delete_prefix with a string is easier to read than a regular expression
also it should be faster. It is available since ruby 2.5 and the gem requires
ruby 2.7.
https://github.com/ruby/pathname/commit/0070f43f19
[Feature #20590]
For better of for worse, fork(2) remain the primary provider of
parallelism in Ruby programs. Even though it's frowned uppon in
many circles, and a lot of literature will simply state that only
async-signal safe APIs are safe to use after `fork()`, in practice
most APIs work well as long as you are careful about not forking
while another thread is holding a pthread mutex.
One of the APIs that is known cause fork safety issues is `getaddrinfo`.
If you fork while another thread is inside `getaddrinfo`, a mutex
may be left locked in the child, with no way to unlock it.
I think we could reduce the impact of these problem by preventing
in for the most notorious and common cases, by locking around
`fork(2)` and known unsafe APIs with a read-write lock.
getlogin is only called if USER environment variable is not set,
but if getlogin returns NULL in that case, then do not call
getpwnam, and assume /bin/sh as shell.
Mentioned in comment to bug 20586.
This test is checking what happens if you try and define a class in a C
extension where that constant is already not a class. It was doing this
by overriding ::Date and then trying to require 'date. The issue with
this is that if we ever add 'date' as a dependency for the test runner,
this test will break because the test runner files get implicitly
required in an `assert_separately` block.
Better use an explicit class for this purpose which can't be accidentally
required elsewhere.
RUBY_TYPED_DEFAULT_FREE will only free the rand_loop_t, but it will cause
the buf to be leaked. This commit fixes the memory leak by implementing
a free function for the rand_loop_t type.
When an exception is raised, it can leak memory in `head`. There are two
places that can leak memory:
1. `Check_Type(tuple, T_ARRAY)` can leak memory if `tuple` is not an
array.
2. `StringValue(name)` and `StringValue(value)` if they are not strings
and the call to `to_str` does not return a string.
This commit fixes these memory leaks by wrapping the code around a
rb_ensure so that the memory is freed in all cases.
The following code demonstrates the memory leak:
emitter = Psych::Emitter.new(StringIO.new)
nil_to_string_tags = [[nil, "tag:TALOS"]] + ([1] * 1000)
expected_array_tags = [1] * 1000
10.times do
1_000.times do
# Raises `no implicit conversion of nil into String`
emitter.start_document([], nil_to_string_tags, 0)
rescue TypeError
end
1_000.times do
# Raises `wrong argument type Integer (expected Array)`
emitter.start_document([], expected_array_tags, 0)
rescue TypeError
end
puts `ps -o rss= -p #{$$}`
end
Before:
47248
79728
111968
144224
176480
208896
241104
273280
305472
337664
After:
14832
15088
15344
15344
15360
15632
15632
15632
15648
15648
https://github.com/ruby/psych/commit/053af73818
These files were to build libffi from the bundled source, but are no
longer used since we stopped bundling the libffi sources in commit
e4f5296f06.
The gemspec file is unchanged because fiddle gem itself still supports
ruby 2.5.
[Feature #20646]Improve Socket.tcp
This is a proposed improvement to `Socket.tcp`, which has implemented Happy Eyeballs version 2 (RFC8305) in PR9374.
1. Background
I implemented Happy Eyeballs version 2 (HEv2) for Socket.tcp in PR9374, but several issues have been identified:
- `IO.select` waits for name resolution or connection establishment in v46w, but it does not consider the case where both events occur simultaneously when it returns a value.
- In this case, Socket.tcp can only capture one event and needs to execute an unnecessary loop to capture the other one, calling `IO.select` one extra time.
- `IO.select` waits for both IPv6/IPv4 name resolution (in start), but when it returns a value, it doesn't consider the case where name resolution for both address families is complete.
- In this case, `Socket.tcp` can only obtain the addresses of one address family and needs to execute an unnecessary loop obtain the other addresses, calling `IO.select` one extra time.
- The consideration for `connect_timeout` was insufficient. After initiating one or more connections, it raises a 'user specified timeout' after the `connect_timeout` period even if there were addresses that have been resolved and have not yet tried to connect.
- It does not retry with another address in case of a connection failure.
- It executes unnecessary state transitions even when an IP address is passed as the `host` argument.
- The regex for IP addresses did not correctly specify the start and end.
2. Proposal & Outcome
To overcome the aforementioned issues, this PR introduces the following changes:
- Previously, each loop iteration represented a single state transition. This has been changed to execute all processes that meet the execution conditions within a single loop iteration.
- This prevents unnecessary repeated loops and calling `IO.select`
- Introduced logic to determine the timeout value set for `IO.select`. During the Resolution Delay and Connection Attempt Delay, the user-specified timeout is ignored. Otherwise, the timeout value is set to the larger of `resolv_timeout` and `connect_timeout`.
- This ensures that the `connect_timeout` is only detected after attempting to connect to all resolved addresses.
- Retry with another address in case of a connection failure.
- This prevents unnecessary repeated loops upon connection failure.
- Call `tcp_without_fast_fallback` when an IP address is passed as the host argument.
- This prevents unnecessary state transitions when an IP address is passed.
- Fixed regex for IP addresses.
Additionally, the code has been reduced by over 100 lines, and redundancy has been minimized, which is expected to improve readability.
3. Performance
No significant performance changes were observed in the happy case before and after the improvement.
However, improvements in state transition deficiencies are expected to enhance performance in edge cases.
```ruby
require 'socket'
require 'benchmark'
Benchmark.bmbm do |x|
x.report('fast_fallback: true') do
30.times { Socket.tcp("www.ruby-lang.org", 80) }
end
x.report('fast_fallback: false') do # Ruby3.3時点と同じ
30.times { Socket.tcp("www.ruby-lang.org", 80, fast_fallback: false) }
end
end
```
Before:
```
~/s/build ❯❯❯ ../install/bin/ruby ../ruby/test.rb
user system total real
fast_fallback: true 0.021315 0.040723 0.062038 ( 0.504866)
fast_fallback: false 0.007553 0.026248 0.033801 ( 0.533211)
```
After:
```
~/s/build ❯❯❯ ../install/bin/ruby ../ruby/test.rb
user system total real
fast_fallback: true 0.023081 0.040525 0.063606 ( 0.406219)
fast_fallback: false 0.007302 0.025515 0.032817 ( 0.418680)
```
OpenSSL::ASN1 is being rewritten in Ruby. To make it easier, let's
remove dependency to the instance variables and the internal-use
function ossl_asn1_get_asn1type() outside OpenSSL::ASN1.
This also fixes the insufficient validation of the passed value with
its tagging.
https://github.com/ruby/openssl/commit/35a157462e
This confused me for a few minutes -- the testcase for
https://bugs.ruby-lang.org/issues/14834 was mistyped in the file name,
as well as once in the source.
E.g. in some cases it was
`one-four-three-eight-four` instead of
`one-four-eight-three-four`.
This commit splits gc.c into two files:
- gc.c now only contains code not specific to Ruby GC. This includes
code to mark objects (which the GC implementation may choose not to
use) and wrappers for internal APIs that the implementation may need
to use (e.g. locking the VM).
- gc_impl.c now contains the implementation of Ruby's GC. This includes
marking, sweeping, compaction, and statistics. Most importantly,
gc_impl.c only uses public APIs in Ruby and a limited set of functions
exposed in gc.c. This allows us to build gc_impl.c independently of
Ruby and plug Ruby's GC into itself.
While working on a separate issue we found that in some cases
`ary_heap_realloc` was being called on frozen arrays. To fix this, this
change does the following:
1) Updates `rb_ary_freeze` to assert the type is an array, return if
already frozen, and shrink the capacity if it is not embedded, shared
or a shared root.
2) Replaces `rb_obj_freeze` with `rb_ary_freeze` when the object is
always an array.
3) In `ary_heap_realloc`, ensure the new capa is set with
`ARY_SET_CAPA`. Previously the change in capa was not set.
4) Adds an assertion to `ary_heap_realloc` that the array is not frozen.
Some of this work was originally done in
https://github.com/ruby/ruby/pull/2640, referencing this issue
https://bugs.ruby-lang.org/issues/16291. There didn't appear to be any
objections to this PR, it appears to have simply lost traction.
The original PR made changes to arrays and strings at the same time,
this PR only does arrays. Also it was old enough that rather than revive
that branch I've made a new one. I added Lourens as co-author in addtion
to Aaron who helped me with this patch.
The original PR made this change for performance reasons, and while
that's still true for this PR, the goal of this PR is to avoid
calling `ary_heap_realloc` on frozen arrays. The capacity should be
shrunk _before_ the array is frozen, not after.
Co-authored-by: Aaron Patterson <tenderlove@ruby-lang.org>
Co-Authored-By: methodmissing <lourens@methodmissing.com>
John Meade
Ivan Kuchin
Nobuyoshi Nakada
Hiroshi SHIBATA
Juanjo Bazán
Gareth Jones
Jean Boussier
Takashi Kokubun
Jeremy Evans
KJ Tsanaktsidis
Peter Zhu
Satoshi Tagomori
Misaki Shioi
Samuel Giddins
Kazuki Yamaguchi
Ivo Anjo
Grant Gardner
eileencodes
HoneyryderChuck