[ovs-git] Open vSwitch: ovs-thread: New function ovsthread_id_self(). (master)

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- Log -----------------------------------------------------------------
commit 6878fada586a8ed5f45a50f9c8834dcf06bdc1f5
Diffs: http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=commitdiff;h=6878fada586a8ed5f45a50f9c8834dcf06bdc1f5
Author: Ben Pfaff <blp at nicira.com>
		
ovs-thread: New function ovsthread_id_self().
		
I foresee a need for possibly large numbers of instances of "struct
seq" (which is introduced in an upcoming patch).  Each struct seq
needs some per-thread data.  POSIX has pthread_key_t for this, but
the number of keys can be fairly limited, to as few as 128.  It is
reasonable to work around this by using a hash table indexed on the
current thread.  That only works if one can get a thread identifier
that is hashable (pthread_t is not).  This patch introduces a
hashable thread identifier.

Signed-off-by: Ben Pfaff <blp at nicira.com>


commit 2ba4f163d9ea84aa8b8e9d8678371a70af766b5e
Diffs: http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=commitdiff;h=2ba4f163d9ea84aa8b8e9d8678371a70af766b5e
Author: Ben Pfaff <blp at nicira.com>
		
ovs-thread: Add support for globally visible per-thread data.
		
DEFINE_PER_THREAD_DATA always declared its data item as "static", meaning
that it was only directly visible within a single translation unit.
This commit adds additional forms of per-thread data that allow the data
to be accessible from multiple translation units.

Signed-off-by: Ben Pfaff <blp at nicira.com>


commit 9c4c45edc36b88bcb2956140965dbde9224ff967
Diffs: http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=commitdiff;h=9c4c45edc36b88bcb2956140965dbde9224ff967
Author: Ben Pfaff <blp at nicira.com>
		
ovs-thread: New function xpthread_setspecific().
		
Signed-off-by: Ben Pfaff <blp at nicira.com>


-----------------------------------------------------------------------

Summary of changes:
 lib/ovs-thread.c |   34 +++++++++++++++-
 lib/ovs-thread.h |  116 +++++++++++++++++++++++++++++++++++++++++++++---------
 lib/poll-loop.c  |    2 +-
 lib/random.c     |    2 +-
 lib/timeval.c    |    2 +-
 lib/util.c       |    4 +-
 lib/vlog.c       |    2 +-
 7 files changed, 138 insertions(+), 24 deletions(-)


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