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fragile
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Previously, calling IO#flush or closing an IO with unflushed buffered
writes would just invoke `#blocking_operation_wait` and flush the write
buffer using a `write` syscall. This change adds flushing through the
fiber scheduler by invoking the `#io_write` hook.
* Prefer IO::Buffer#write in IOScheduler
* Use Dir.tmpdir for test file
* Correctly handle errors in io_flush_buffer_fiber_scheduler
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In the child process, nullify the current fiber scheduler and set the current fiber to blocking.
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```
test/fiber/test_scheduler.rb:98: warning: Scheduler should implement #fiber_interrupt
```
Notes:
Merged: https://github.com/ruby/ruby/pull/13501
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Previously, vm_make_env_each() (used during proc
creation and for the debug inspector C API) picked up the
non-GC-allocated iseq that rb_vm_push_frame_fname() creates,
which led to a SEGV when the GC tried to mark the non GC object.
Put a real iseq imemo instead. Speed should be about the same since
the old code also did a imemo allocation and a malloc allocation.
Real iseq allows ironing out the special-casing of dummy frames in
rb_execution_context_mark() and rb_execution_context_update(). A check
is added to RubyVM::ISeq#eval, though, to stop attempts to run dummy
iseqs.
[Bug #21180]
Co-authored-by: Aaron Patterson <tenderlove@ruby-lang.org>
Notes:
Merged: https://github.com/ruby/ruby/pull/12898
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[Bug #20907]
Notes:
Merged-By: ioquatix <samuel@codeotaku.com>
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`ppc64le` appears to be struggling with this test due to timeout. Let's see
if reducing the number of iterations can help improve the test performance.
Notes:
Merged-By: ioquatix <samuel@codeotaku.com>
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* Ensure that blocked fibers don't prevent valid wakeups.
Notes:
Merged-By: ioquatix <samuel@codeotaku.com>
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Notes:
Merged-By: ioquatix <samuel@codeotaku.com>
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Notes:
Merged-By: ioquatix <samuel@codeotaku.com>
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Notes:
Merged: https://github.com/ruby/ruby/pull/5926
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to prevent the following failure on `make test-all --repeat-count=2`
http://ci.rvm.jp/results/trunk-repeat20-asserts@phosphorus-docker/3957774
```
1) Error:
TestFiberScheduler#test_autoload:
NameError: uninitialized constant TestFiberSchedulerAutoload
Object.const_get(:TestFiberSchedulerAutoload)
^^^^^^^^^^
```
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Object#autoload implements a custom per-thread "mutex" for blocking
threads waiting on autoloading a feature. This causes problems when used
with the fiber scheduler. We swap the implementation to use a Ruby mutex
which is fiber aware.
Notes:
Merged-By: ioquatix <samuel@codeotaku.com>
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Notes:
Merged: https://github.com/ruby/ruby/pull/4621
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* Wake up join list within thread EC context.
* Consume items from join list so that they are not re-executed.
If `rb_fiber_scheduler_unblock` raises an exception, it can result in a
segfault if `rb_threadptr_join_list_wakeup` is not within a valid EC. This
change moves `rb_threadptr_join_list_wakeup` into the thread's top level EC
which initially caused an infinite loop because on exception will retry. We
explicitly remove items from the thread's join list to avoid this situation.
* Verify the required scheduler interface.
* Test several scheduler hooks methods with broken `unblock` implementation.
Notes:
Merged-By: ioquatix <samuel@codeotaku.com>
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Notes:
Merged: https://github.com/ruby/ruby/pull/4173
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Notes:
Merged: https://github.com/ruby/ruby/pull/3742
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Notes:
Merged: https://github.com/ruby/ruby/pull/3612
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Notes:
Merged: https://github.com/ruby/ruby/pull/3605
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Notes:
Merged: https://github.com/ruby/ruby/pull/3557
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Notes:
Merged: https://github.com/ruby/ruby/pull/3434
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Notes:
Merged: https://github.com/ruby/ruby/pull/3434
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