Several pthread interfaces hanging during testing

[cocobean]

Several pthread interfaces HUNG during testing:

pthread_atfork
pthread_equal
pthread_mutex_trylock
pthread_once
pthread_rwlock_wrlock

• Ref: Haiku hrev56511 x64
• Ref: OpenPOSIX THR tests - ​http://sourceforge.net/projects/posixtest/files/posixtest/posixtestsuite-1.5.2/

[cocobean]

Retested on Haiku hrev56630 x64:

1. pthread_atfork - Resolved

pthread_equal - 2-1, HUNG
pthread_mutex_trylock - 4-3, HUNG
pthread_once - 6-1, HUNG
pthread_rwlock_wrlock - 3-1, HUNG

[jessicah]

pthread_rwlock_wrlock updated in hrev56698 to return EDEADLK when possible to detect.

[cocobean]

Issue resolved. Tested on hrev56862 x64.

pthread_equal - 2-1, PASS
pthread_mutex_trylock - 4-3, PASS
pthread_once - 6-1, PASS
pthread_rwlock_wrlock - 3-1, PASS

Please close this ticket.