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vm_trace.c: workqueue as thread-safe version of postponed_job

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postponed_job is safe to use in signal handlers, but is not
thread-safe for MJIT.  Implement a workqueue for MJIT
thread-safety.

[Bug #15316]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66100 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
normal 2018-11-30 03:56:29 +00:00
parent d7e4e50bdb
commit eb38fb670b
5 changed files with 67 additions and 20 deletions
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14
mjit.c
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@ -106,20 +106,6 @@ mjit_gc_finish_hook(void)
CRITICAL_SECTION_FINISH(4, "mjit_gc_finish_hook");
}
/* Wrap critical section to prevent [Bug #15316] */
void
mjit_postponed_job_register_start_hook(void)
{
CRITICAL_SECTION_START(4, "mjit_postponed_job_register_start_hook");
}
/* Unwrap critical section of mjit_postponed_job_register_start_hook() */
void
mjit_postponed_job_register_finish_hook(void)
{
CRITICAL_SECTION_FINISH(4, "mjit_postponed_job_register_finish_hook");
}
/* Iseqs can be garbage collected. This function should call when it
happens. It removes iseq from the unit. */
void