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authorRich Felker <dalias@aerifal.cx>2011-03-29 12:58:22 -0400
committerRich Felker <dalias@aerifal.cx>2011-03-29 12:58:22 -0400
commitbf619d82c82052741323aa63c107fbd346c8aaba (patch)
tree11f97d73195bb633df6c6e679ab65a7f8f0fd477 /src/ipc
parent70c31c7bd779400d2eb56dcb4075bb37227081db (diff)
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major improvements to cancellation handling
- there is no longer any risk of spoofing cancellation requests, since
  the cancel flag is set in pthread_cancel rather than in the signal
  handler.

- cancellation signal is no longer unblocked when running the
  cancellation handlers. instead, pthread_create will cause any new
  threads created from a cancellation handler to unblock their own
  cancellation signal.

- various tweaks in preparation for POSIX timer support.
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