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author | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2019-01-04 13:14:11 +0000 |
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committer | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2019-01-04 13:14:11 +0000 |
commit | 23444302d9200bcc41ce279a529f73cad63c3f05 (patch) | |
tree | cb541d972fd43a434593dca6c3aebcfcdd8fe560 /thread_pthread.c | |
parent | 16cfd26a57c30e17bc3c116c83134420693ba5c4 (diff) | |
download | ruby-23444302d9200bcc41ce279a529f73cad63c3f05.tar.gz |
introduce rb_nogvl C-API to mark ubf as async-signal-safe
zlib and bignum both contain unblocking functions which are
async-signal-safe and do not require spawning additional
threads.
We can execute those functions directly in signal handlers
without incurring overhead of extra threads, so provide C-API
users the ability to deal with that. Other C-API users may
have similar need.
This flexible API can supercede existing uses of
rb_thread_call_without_gvl and rb_thread_call_without_gvl2 by
introducing a flags argument to control behavior.
Note: this API is NOT finalized. It needs approval from other
committers. I prefer shorter name than previous
rb_thread_call_without_gvl* functions because my eyes requires
big fonts.
[Bug #15499]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66712 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'thread_pthread.c')
-rw-r--r-- | thread_pthread.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/thread_pthread.c b/thread_pthread.c index d8d3184c62..499da0b9ca 100644 --- a/thread_pthread.c +++ b/thread_pthread.c @@ -1542,6 +1542,11 @@ rb_thread_wakeup_timer_thread(int sig) if (ec) { RUBY_VM_SET_TRAP_INTERRUPT(ec); ubf_timer_arm(current); + + /* some ubfs can interrupt single-threaded process directly */ + if (vm->ubf_async_safe && mth->unblock.func) { + (mth->unblock.func)(mth->unblock.arg); + } } } } |