K 10
svn:author
V 7
davidxu
K 8
svn:date
V 27
2010-09-01T03:11:21.399138Z
K 7
svn:log
V 386
Change atfork lock from mutex to rwlock, also make mutexes used by malloc()
module private type, when private type mutex is locked/unlocked, thread
critical region is entered or leaved. These changes makes fork()
async-signal safe which required by POSIX. Note that user's atfork handler
still needs to be async-signal safe, but it is not problem of libthr, it
is user's responsiblity.

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