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authorRich Felker <dalias@aerifal.cx>2011-08-07 11:14:32 -0400
committerRich Felker <dalias@aerifal.cx>2011-08-07 11:14:32 -0400
commitb3c08a16c0a085e8de01cdc9de106aaa332d27d5 (patch)
tree6b3645eb14be5acf87334a158202d4866efda50b /include
parentb2b95a58b4326c8a8aa87fdf6e8b0f6421dbaf99 (diff)
downloadmusl-b3c08a16c0a085e8de01cdc9de106aaa332d27d5.tar.gz
simplify unified timed wait code, drop support for newer method
the new absolute-time-based wait kernelside was hard to get right and basically just code duplication. it could only improve "performance" when waiting, and even then, the improvement was just slight drop in cpu usage during a wait. actually, with vdso clock_gettime, the "old" way will be even faster than the "new" way if the time has already expired, since it will not invoke any syscalls. it can determine entirely in userspace that it needs to return ETIMEDOUT.
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