st.c: Do not clear entries_bound when calling Hash#shift for empty
hash
tab->entries_bound is used to check if the bins are full in
rebuild_table_if_necessary.
Hash#shift against an empty hash assigned 0 to tab->entries_bound, but
didn't clear the bins. Thus, the table is not rebuilt even when the bins
are full. Attempting to add a new element into full-bin hash gets stuck.
This change stops clearing tab->entries_bound in Hash#shift.
[Bug #18578]
---
st.c | 1 -
test/ruby/test_hash.rb | 13 +++++++++++++
2 files changed, 13 insertions(+), 1 deletion(-)
Fix TAG_THROW through require [Bug #18562]
Previously this was being incorrectly swapped with TAG_RAISE in the next
line. This would end up checking the T_IMEMO throw_data to the exception
handling (which calls Module#===). This happened to not break existing
tests because Module#=== returned false when klass is NULL.
This commit handles throw from require correctly by jumping to the tag
retaining the TAG_THROW state.
---
load.c | 2 +-
test/ruby/test_exception.rb | 21 +++++++++++++++++++++
2 files changed, 22 insertions(+), 1 deletion(-)
Do not use `fcopyfile` if appending to non-empty file [Bug #18388]
`fcopyfile` appends `src` to `to` and then truncates `to` to it's
original size.
---
io.c | 7 +++++++
test/ruby/test_io.rb | 12 ++++++++++++
2 files changed, 19 insertions(+)
An alias can suppress method redefinition warning
---
test/ruby/test_alias.rb | 11 +++++++++++
1 file changed, 11 insertions(+)
Fix memory leak at the same named alias [Bug #18516]
When aliasing a method to the same name method, set a separate bit
flag on that method definition, instead of the reference count
increment. Although this kind of alias has no actual effect at
runtime, is used as the hack to suppress the method re-definition
warning.
---
method.h | 1 +
test/ruby/test_alias.rb | 18 ++++++++++++++++++
vm_method.c | 9 ++++++++-
3 files changed, 27 insertions(+), 1 deletion(-)
Assuming EXIT_SUCCESS equals 0 is not portable
---
test/ruby/test_fiber.rb | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
`rb_fiber_terminate` must not return [Bug #18497]
In a forked process from a fiber, the fiber becomes the only
fiber, `fiber_switch` does nothing as there is no other fibers,
`rb_fiber_terminate` does not terminate the fiber. In that case,
reaches the end of `fiber_entry` finaly, which is declared as
"COROUTINE" and should never return.
---
cont.c | 3 ++-
eval_intern.h | 2 +-
test/fiber/test_process.rb | 15 +++++++++++++++
test/ruby/test_fiber.rb | 5 +++++
4 files changed, 23 insertions(+), 2 deletions(-)
note that only backported a part of above patch because of incompatibility
of ruby_2_7.
[ruby/zlib] [Bug #18358] Fix crash in zlib when in progress
When Zlib::Inflate#inflate or Zlib::Deflate#deflate is called
recursively inside the block, a crash can occur because of an
use-after-free bug.
https://github.com/ruby/zlib/commit/50fb8a0338
---
ext/zlib/zlib.c | 117 ++++++++++++++++++++++++++++++++-----------------
test/zlib/test_zlib.rb | 10 ++++-
2 files changed, 85 insertions(+), 42 deletions(-)
[ruby/zlib] Synchronize access to zstream to prevent segfault in
multithreaded use
I'm not sure whether this handles all multithreaded use cases,
but this handles the example that crashes almost immediately
and does 10,000,000 total deflates using 100 separate threads.
To prevent the tests from taking forever, the committed test
for this uses only 10,000 deflates across 10 separate threads,
which still causes a segfault in the previous implementation
almost immediately.
Fixes [Bug #17803]
https://github.com/ruby/zlib/commit/4b1023b3f2
---
ext/zlib/zlib.c | 33 ++++++++++++++++++++++++++-
test/zlib/test_zlib.rb | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 93 insertions(+), 1 deletion(-)
Empty and return the buffer if zero size is given [Bug #18421]
In `IO#readpartial` and `IO#read_nonblock`, as well as `IO#read`.
---
io.c | 8 ++++++--
test/ruby/test_io.rb | 21 +++++++++++++++++++++
2 files changed, 27 insertions(+), 2 deletions(-)
Fixed the check order in wmap_live_p [Bug #18392]
Check if the object is a pointer to heap before check the flag in
that object.
---
gc.c | 35 ++++++++++++++++++++++-------------
1 file changed, 22 insertions(+), 13 deletions(-)
ObjectSpace::WeakMap#inspect: check if living object [Bug #18392]
---
gc.c | 29 +++++++++++++++++++++++------
test/ruby/test_weakmap.rb | 9 +++++++++
2 files changed, 32 insertions(+), 6 deletions(-)
[Bug #18264] Fix memory leak in TracePoint
TracePoint leaks memory because it allocates a `rb_tp_t` struct
without ever freeing it (it is created with `RUBY_TYPED_NEVER_FREE`).
---
test/ruby/test_settracefunc.rb | 10 ++++++++++
vm_trace.c | 2 +-
2 files changed, 11 insertions(+), 1 deletion(-)
[Bug #18173] Update loaded_features_index
If $LOADED_FEATURES is changed in the just required file, also the
index table needs to be updated before loaded_features_snapshot is
reset. If the snapshot is reset without updating the table, the
name of the added feature will not be found.
---
load.c | 1 +
test/ruby/test_require.rb | 17 +++++++++++++++++
2 files changed, 18 insertions(+)
[Bug #18154] Fix memory leak in String#initialize
String#initialize can leak memory when called on a string that is marked
with STR_NOFREE because it does not unset the STR_NOFREE flag.
---
string.c | 2 +-
test/ruby/test_string.rb | 10 ++++++++++
2 files changed, 11 insertions(+), 1 deletion(-)
Avoid pointless attempts to open .so file if already required
When attempting to require a file without an extension that has
already been required or provided with an .so extension, only
look for files with an .rb extension. There is no point in
trying to find files with an .so extension, since we already
know one has been loaded.
Previously, attempting to require such a file scanned the load
path twice, once for .rb and once for .so. Now it only scans
once for .rb. The scan once for .rb cannot be avoided, since
the .rb file would take precedence and should be loaded if it
exists.
Fixes [Bug #10902]
---
load.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
Sort feature index arrays by the priority of file types [Bug #15856]
When looking for libraries to load with a feature name without
extension, `.rb` files are given priority. However, since the
feature index arrays were not in that order of priority, but in
the order in which they were loaded, a lower priority extension
library might be returned. In that case, the `.rb` file had to be
searched for again from the `$LOAD_PATH`, resulting in poor
performance.
---
load.c | 52 +++++++++++++++++++++++++++++++++++++++++++++-------
1 file changed, 45 insertions(+), 7 deletions(-)
[ruby/resolv] Fix confusion of received response message
This is a follow up for commit 33fb966197f1 ("Remove sender/message_id
pair after response received in resolv", 2020-09-11).
As the @senders instance variable is also used for tracking transaction
ID allocation, simply removing an entry without releasing the ID would
eventually deplete the ID space and cause
Resolv::DNS.allocate_request_id to hang.
It seems the intention of the code was to check that the received DNS
message is actually the response for the question made within the method
earlier. Let's have it actually do so.
[Bug #12838] https://bugs.ruby-lang.org/issues/12838
[Bug #17748] https://bugs.ruby-lang.org/issues/17748https://github.com/ruby/resolv/commit/53ca9c9209
---
lib/resolv.rb | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
[Bug #17780] Fix Method#super_method for module alias
Method#super_method crashes for aliased module methods because they are
not defined on a class. This bug was introduced in
c60aaed185 as part of bug #17130.
---
proc.c | 2 +-
test/ruby/test_method.rb | 13 +++++++++++++
2 files changed, 14 insertions(+), 1 deletion(-)
test/drb/test_drb.rb: Specify the host of DRbServer
to try fixing the following error.
http://rubyci.s3.amazonaws.com/opensuseleap/ruby-master/log/20210407T063004Z.log.html.gz
```
[ 605/21105] DRbTests::TestDRbSSLAry#test_06_next/home/chkbuild/chkbuild/tmp/build/20210407T063004Z/ruby/lib/drb/drb.rb:1138:in `method_missing': undefined method `regist' for [1, 2, "III", 4, "five", 6]:Array (NoMethodError)
from /home/chkbuild/chkbuild/tmp/build/20210407T063004Z/ruby/lib/drb/extserv.rb:21:in `block in initialize'
from /home/chkbuild/chkbuild/tmp/build/20210407T063004Z/ruby/.ext/common/monitor.rb:202:in `synchronize'
from /home/chkbuild/chkbuild/tmp/build/20210407T063004Z/ruby/.ext/common/monitor.rb:202:in `mon_synchronize'
from /home/chkbuild/chkbuild/tmp/build/20210407T063004Z/ruby/lib/drb/extserv.rb:20:in `initialize'
from /home/chkbuild/chkbuild/tmp/build/20210407T063004Z/ruby/test/drb/ut_array_drbssl.rb:35:in `new'
from /home/chkbuild/chkbuild/tmp/build/20210407T063004Z/ruby/test/drb/ut_array_drbssl.rb:35:in `<main>'
= 100.05 s
```
Here is my analysis:
The test of drb used both `druby://:0` and `druby://localhost:0` for
DRbServer. However, the former listens on IPv4, and the latter does on
IPv6, depending on environments. The port 0 is automatically assigned,
but sometimes the same port is used to both because they are different
protocols (IPv4 and IPv6). In this case, their URIs are resolved to the
completely same one (`druby://localhost:port`), which confuses the
method `DRb.here?` which determines the DRbObject is remote or local.
This changeset uses `druby://localhost:0` consistently.
---
test/drb/test_drb.rb | 4 ++--
test/drb/test_drbssl.rb | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
NAKAMURA Usaku