CVS log for src/sys/sys/lwp.h

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Default branch: MAIN
Current tag: cjep_staticlib_x-base

Revision 1.212 / (download) - annotate - [select for diffs], Fri Oct 23 00:25:45 2020 UTC (3 years, 5 months ago) by thorpej
Branch: MAIN
CVS Tags: thorpej-i2c-spi-conf2-base, thorpej-i2c-spi-conf2, thorpej-i2c-spi-conf-base, thorpej-i2c-spi-conf, thorpej-futex2-base, thorpej-futex-base, thorpej-cfargs2-base, thorpej-cfargs2, thorpej-cfargs-base, thorpej-cfargs, cjep_sun2x-base1, cjep_sun2x-base, cjep_sun2x, cjep_staticlib_x-base1, cjep_staticlib_x-base, cjep_staticlib_x
Branch point for: thorpej-futex2, thorpej-futex
Changes since 1.211: +2 -1 lines
Diff to previous 1.211 (colored)

- sleepq_block(): Add a new LWP flag, LW_CATCHINTR, that is used to track
  the intent to catch signals while sleeping.  Initialize this flag based
  on the catch_p argument to sleepq_block(), and rather than test catch_p
  when awakened, test LW_CATCHINTR.  This allows the intent to change
  (based on whatever criteria the owner of the sleepq wishes) while the
  LWP is asleep.  This is separate from LW_SINTR in order to leave all
  other logic around LW_SINTR unaffected.
- In sleepq_transfer(), adjust also LW_CATCHINTR based on the catch_p
  argument.  Also allow the new LWP lock argument to be NULL, which
  will cause the lwp_setlock() call to be skipped; this allows transfer
  to another sleepq that is known to be protected by the same lock.
- Add a new function, sleepq_uncatch(), that will transition an LWP
  from "interruptible sleep" to "uninterruptible sleep" on its current
  sleepq.

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